National Weather Service United States Department of Commerce

Powerful Pacific Storm to Continue Impacting Northern California; Heavy Snow in the Appalachians and Portions of the Northeast

A strong atmospheric river will continue to impact northern California with heavy rain and life-threatening flooding through Friday. Unsettled weather is expected across much of the Northeast and Great Lakes over the next few days, including the likelihood of heavy snow in the central Appalachians and higher elevations of northeastern Pennsylvania and southern New York. Read More >

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Previous Annual and Water Year Climate Summaries
 

Wyoming 2016 Climate Summary

...Highlights of 2016 for Wyoming...

  • Annual: 4th warmest year on record (1895-2016), 31st wettest year on record with 109 percent of normal precipitation.
  • Seasonal:  11th wettest Spring (March, April, May) on record with statewide average precipitation of 7.02 inches.
  • Monthly Temperatures: 4th warmest February, 2nd warmest June, 3rd warmest November on record. 17th coldest December on 122 years of record. 9 months had above or much above normal monthly average temperatures, 2 months (May, August) were near normal, December was below normal.    
  • Monthly Precipitation: 11th wettest March, 6th wettest December on record. 9th driest June, 10th driest July on record.  6 months had above or much above normal monthly average precipitation, 3 months had below or much below normal monthly average precipitation, 3 months had near normal monthly average precipitation.
Wyoming Climate      |      Click on Image to Enlarge
 

Wyoming: 2016

Precipitation - Percent of Normal Temperature - Departure from Normal
Wyoming: 2016 Percent of Normal Precipitation (Click to Enlarge) Wyoming: 2016 Departure from Normal Temperature
Climate Division:
Wyoming (Statewide Averages)
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
  Average Temperature   22.7 29.9 34.5 41.8 47.9 63.8 66.7 63.5 55.4 46.4 37.1 16.1   43.8
  20th Century Average   18.4 22.3 29.1 38.8 48.4 57.6 65.3 63.4 53.6 42.5 29.0 20.6   40.8
  Departure from Avegage   4.3 7.6 5.4 3.0 -0.5 6.2 1.4 0.1 1.8 3.9 8.1 -4.5   3.0
  Rank: Warm to Cold (122 yrs)    24 4 12 26 70 2 37 64  37 11 3 106   4
  Rank: Cold to Warm (122 yrs)    98 119 111 97 53 121 86 59 86 112 120 17   119
  Precipitation    0.87  0.81 2.00 2.52 2.50 0.68 0.69 0.82 2.01 1.83 0.85 1.75   17.33
  20th Century Average   1.06 0.97 1.25 1.77 2.21 1.84 1.28 1.07 1.24 1.20 1.03 1.01    15.93
  Percent of Average    82 84 160 142 113 37 54 77 162 153 83 173   109
  Rank: Dry to Wet (122 yrs)   43 42 112 110 86 9 10 42 108 18 45 117   92
  Rank: Wet to Dry (122 yrs)   79 81 11 13 37 114 113 81 15 105 78 6   31
    
Maps and Statewide Averages for 3, 12 and 60 Months

Wyoming Climate Divisions: 2016

Wyoming Climate Divisions Map - Click to Enlarge

Wyoming Climate Division Rankings: January - December 2016

Precipitation Rankings
Driest to Wettest 122 Years
Temperature Rankings
Coldest to Warmest 122 Years
Wyoming Climate Divisions: 2016 Precipitation Rankings (Click to Enlarge) Wyoming Climate Divisions: 2016 Temperature Rankings (Click to Enlarge)

Climate Division 1 - Yellowstone Drainage
Climate Division:
Yellowstone (Division Averages)
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
  Average Temperature   21.8 26.2 29.4 39.2 44.0 56.3 58.3 57.3 49.1 40.1 33.2 9.5   38.7
  20th Century Average   15.2 18.9 24.3 33.3 42.4 50.3 57.9 56.2 47.4 37.3 24.6 16.9   35.4
  Departure from Avegage   6.6 7.3 5.1 5.9 1.6 6.0 0.4 1.1 1.7 2.8 8.6 -7.4   3.3
  Rank: Warm to Cold (122 yrs)    8 5 12 7 34 4 58 41 36 25 2 113   3
  Rank: Cold to Warm (122 yrs)    114 118 111 116 89 119 65 82 87 98 121 10   120
  Precipitation    1.80  1.58 2.65 1.83 2.46 1.03 1.17 0.47 2.41 6.14 1.75 4.72   28.01
  20th Century Average   2.89 2.26 2.61 2.47 2.84 2.57 1.61 1.51 1.80 1.88 2.49 2.63    27.56
  Percent of Average    62 70 102 74 87 40 73 31 134 327 70 179   102
  Rank: Dry to Wet (122 yrs)   34 31 63 32 55 8 41 9 90 122 37 118   64
  Rank: Wet to Dry (122 yrs)   88 92 60 91 68 115 82 114 33 1 86 5   59
    

Station Name: Drought
Conditions
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
 click on location   D0 D1                              
 for graph D2 D3 D4                              
Old Faithful None   1.27 1.15 1.83 1.31 2.07 0.67 1.64 0.77 2.96 8.18 1.24 4.08   27.17
  1981-2010 Normals    2.11 1.99 2.21 2.21 2.80 2.47 1.55 1.46 1.46 1.66 2.29 3.16    25.37
  Percent of Normal     60 58 83 59 74 27 106 53 203 493 54 129   107
Snowfall    27.8  11.3 29.3 2.0 T 0 0 0 3.5 8.0 16.8 76.5   175.2
1981-2010 Normals   37.5 31.1 26.8 19.3 7.3 1.2 0.0 0.0 1.4 7.7 31.7 43.8    207.8
  Percent of Normal     74 36 109 10 0 0 0 0 250 104 53 175   84
                               

Climate Division 2 - Snake Drainage
Climate Division:
Snake (Division Averages)
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
  Average Temperature   19.1 24.1 27.9 37.6 42.8 54.7 57.6 56.4 48.7 39.0 31.5 11.1   37.5
  20th Century Average   14.7 18.3 23.6 33.0 42.3 50.0 57.7 56.0 47.5 37.4 24.3 16.0   35.1
  Departure from Avegage   4.4 5.8 4.3 4.6 0.5 4.7 -0.1 0.4 1.2 1.6 7.2 -4.9   2.5
  Rank: Warm to Cold (122 yrs)    20 12 16 11  49 7  70 54 43 33 3 110   4
  Rank: Cold to Warm (122 yrs)    102 111 107 112 74 116 53 69 80 90 120 13   119
  Precipitation    3.60  2.19 4.31 2.19 3.24 0.98 0.69 0.45 3.24 7.28 1.92 7.11   37.20
  20th Century Average   4.34 3.59 3.45 2.81 2.91 2.31 1.32 1.46 1.77 2.12 3.33 3.72    33.13
  Percent of Average    83 61 125 78 111 42 52 31 183 343 58 191   112
  Rank: Dry to Wet (122 yrs)   53 28 92 32 77 18 19 10 109 122 26 118   93
  Rank: Wet to Dry (122 yrs)   69 95 31 91 46 105 104 113 14 1 97 5   30
    

v
Station Name:
 
Drought
Conditions
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
 click on location   D0 D1                              
 for graph D2 D3 D4                              
Afton  None   1.57 0.84 2.11 1.75 3.80 0.40 0.41 0.12 3.68 4.49 0.70 1.55   21.42
  1981-2010 Normals   1.40 1.09 1.40 1.54 2.26 1.97 1.43 1.25 1.46 1.63 2.04 1.25   18.16
  Percent of Normal    112 77 151 114 168 20 29 10 252 275 47 124   118
Snowfall    27.8 14.5 23.0 1.4 0.3 0.0 0.0 0.0 0.6 6.0 8.5 24.0   106.1
                               
Moose None   3.02 0.83 2.28 1.00 1.57 0.69 0.75 0.18 2.37 5.29 1.70 5.27   24.95
  1981-2010 Normals   2.58 1.82 1.62 1.49 1.88 1.61 1.29 1.29 1.44 1.47 2.64 2.67    21.80
  Percent of Normal    117  46 141 67 84 43 58 14 165 360 64 197   114
Snowfall    56.5  5.1 24.1 T 0.0 0.0 0.0 0.0 0.0 3.0 10.5 64.9    164.1
1981-2010 Normals   36.9 26.6 15.9 7.4 2.2 0.0 0.0 0.0 0.2 4.8 24.1 44.7    162.8
  Percent of Normal     153 19 152 0 0 0 0 0 0 63 44 145   101
                               
JHMR MId Mtn   None                              
Snowfall    94.0 37.0 71.0 6.0 3.0       0.0 25.0 29.0 128    393
1975-2016 Average   81.0 64.0 55.0 19.0 14.0       1.0 16.0 33.0 75.0    283.0
  Percent of Normal     116 58 129 32 21       0 156 88 171   94
                               

Climate Division 3 - Green and Bear Drainages
Climate Division:
Green amd Bear (Division Averages)
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
  Average Temperature   17.8 26.4 32.0 40.2 45.8 60.8 63.7 60.9 53.1 43.6 33.7 16.0   41.2
  20th Century Average   16.2 19.7 27.0 37.0 46.6 55.3 62.8 60.8 51.6 40.7 27.0 18.3   38.6
  Departure from Avegage   1.6 6.7 5.0 3.2 -0.8 5.5 0.9 0.1 1.5 3.0 6.8 -2.3   2.6
  Rank: Warm to Cold (122 yrs)    49 90 15 25  79 3  43 59 34 21 3 86   5
  Rank: Cold to Warm (122 yrs)    73 114 108 98 44 120 80 60 89 102 120 37   118
  Precipitation    1.08  0.71 1.78 1.90 3.43 0.54 0.34 0.54 1.96 2.19 0.82 1.94   17.23
  20th Century Average   1.15 1.06 1.17 1.37 1.55 1,14 0.94 1.00 1.10 1.16 1.03 1.03    13.70
  Percent of Average    94 67 152 139 221 47 36 54 178 189 80 188   126
  Rank: Dry to Wet (122 yrs)   47 25 109 101 117 30 6 31 105 112 45 116   116
  Rank: Wet to Dry (122 yrs)   75 98 14 22 6 93 117 92 18 11 78 7   7
    

Station Name: Drought
Conditions
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
 click on location   D0 D1                              
 for graph D2 D3 D4                              
Big Piney Airport  None   0.04 0.13 0.82 1.07 3.99 0.73 0.25 0.45 1.56 2.47 0.53 0.55   12.59
1981-2010 Normals    0.31  0.35  0.44  0.53  0.84 0.79  0.71  0.69  0.78  0.53  0.21  0.30    6.48
Percent of Normal     13 37 186 202 475 92 35 65 200 466 252 183    194
                               
Evanston Airport None   0.30 0.02 0.25 0.76 2.07 0.29 T 0.18 1.85 1.21 0.15 0.22   7.30
  1981-2010 Normals   0.54 0.61 0.86 1.15 1.77 1.24 0.90 0.96 1.31 1.17 1.04 0.58    12.13
  Percent of Normal     56 3 29 66 117 23 0 19 141 103 14 38    60
                               
Rock Springs Arpt.  None   0.03 0.19 0.56 1.48 2.20 0.21 0.30 0.20 1.59 0.46 0.14 0.08   7.44
 1981-2010 Normals    0.45  0.48  0.68  0.91  1.21  0.79  0.64  0.62  0.92  0.87  0.49  0.50    8.56
  Percent of Normal     7  40 82 163 182 27 47 32 173 53 29 16    87
                               
Bitter Creek 4NE None   0.37 0.37 0.89 1.12 2.00 0.21 0.48 0.31 1.82 0.91 0.20 0.22   8.90
  1981-2010 Normals   0.28 0.36 0.30 0.65 1.09 0.70 0.60 0.75 0.73 0.66 0.31 0.51    6.94
  Percent of Normal     132 103 297 172 183 30 80 41 249 138 65 43   128
                               
Fossil Butte
National Monument
  None    0.90 0.54 1.66 1.51 4.66 0.38 T 0.47 1.43 2.96 0.72 1.50   16.73
1981-2010 Normals   0.49 0.68 0.82 0.98 1.41 1.03 0.85 0.93 1.10 1.11 0.86 0.74    11.00
  Percent of Normal    184 79 202 154 330 37 0 515 130 267 84 203   152
Snowfall    16.5 9.8 19.4 0.5 1.3 0.0 0.0 0.0 1.0 3.5 4.8 13.7    70.5
                               
Green River None   0.85 0.57 1.63 2.22 3.76 0.68 0.18 0.79 2.08 1.56 1.00 0.40   15.72
  1981-2010 Normals    0.34  0.43 0.71  0.85 1.23 0.98 0.55  0.68  0.90 0.81 0.41 0.44    8.33
  Percent of Normal    250 133 230 261 306 69 33 116 231 193 244 91  

189

Snowfall   9.4 7.6 13.3 6.5 T 0.0 0.0 0.0 0.0 T 10.0 4.0    50.8
1981-2010 Normals   4.6 7.3 5.0 3.9 0.6 0.0 0.0 0.0 0.0 0.5 3.8 6.5   32.2
Percent of Normal   204 104 266 167 0 0 0 0 0 0 263 62    158
                               
Rock Springs  None   0.39 0.32 1.69 4.16 3.40 0.39 0.06 0.33 2.32 0.93 0.87 0.45   15.31
  1981-2010 Normals    0.44  0.46 0.67  0.91 1.42 0.86 0.73  0.96  1.08 1.09 0.52 0.52    9.66
  Percent of Normal    89 70 252 457 239 45 8 34 215 85 167 87   158
Snowfall   5.4 4.1 13.5 3.0 0.0 0.0 0.0 0.0 0.0 0.0 11.9 1.1    39.0
                               

Climate Division 4 - Big Horn Drainage
Climate Division:
Big Horn (Division Averages)
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
  Average Temperature   24.5 32.0 35.4 43.4 49.5 64.6 66.7 64.5 55.2 45.9 37.7 13.9   44.4
  20th Century Average   17.7 22.7 30.2 39.8 49.1 58.1 65.8 63.7 53.5 42.6 29.2 20.6   41.1
  Departure from Avegage   6.8 9.3 5.2 3.6 0.4 6.5 0.9 0.8 1.7 3.3 8.5 -6.7   3.4
  Rank: Warm to Cold (122 yrs)    15 4 15 20 55 3 50  49  39 20 3 115   4
  Rank: Cold to Warm (122 yrs)    107 119 108 103 68 120 73 74 84 103 120 8   115
  Precipitation   0.45 0.59 1.72 2.44 2.07 0.58 0.59 0.72 2.92 2.58 0.98 1.59   17.23
  20th Century Average   0.92 0.75 1.12 1.75 2.22 1.92 1.13 0.94 1.31 1.14 0.95 0.87   15.02
  Percent of Average    49 79 154 139 93 30 52 77 223 226 103 183   115
  Rank: Dry to Wet (122 yrs)   19 45 104 101 63 8 26 53 115 116 70 115   97
  Rank: Wet to Dry (122 yrs)   103 78 19 22 60 115 97 73 8 7 53 8   26
    

Station Name: Drought
Conditions
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
 click on location   D0 D1                              
 for graph D2 D3 D4                              
Greybull Airport   None   0.11 T 0.36 0.46 1.36 0.17 0.09 0.33 2.76 1.18 0.23 0.03   7.08
  1981-2010 Normals    0.23  0.18  0.40  0.71  1.65  1.20  0.66  0.42  0.88  0.30  0.28  0.60    7.51
  Percent of Normal     48 0 90 65 82 14 14 79 314 197 0.77 11   94
                               
Worland Airport None   0.03 T 0.97 1.34 1.42 0.29 0.15 0.27 1.97 2.35 0.96 0.19   9.94
  1981-2010 Normals    0.23 0.19 0.46 0.86 1.42 1.15 0.71 0.43 0.85 0.69 0.35 0.23    7.57
  Percent of Normal     13 0 211 156 100 25 21 63 232 341 274 83    131
                               
Cody  None   0.10 0.03 0.80 2.86 1.68 0.26 1.01 0.62 2.14 2.13 0.29 2.17   14.09
  1981-2010 Normals   0.33 0.33 0.56 1.06 1.82 1.68 1.11 0.91 1.06 0.89 0.48 0.33    10.56
  Percent of Normal     30 9 143 270 92 15 91 68 202 239 60 658    133
Snowfall    1.6  T 2.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 25.4   31.3
1981-2010 Normals   7.8 6.7 6.9 6.3 0.8 0.0 0.0 0.0 0.2 4.3 6.3 8.0   47.3
  Percent of Normal     21 0 33 0 0 0 0 0 0 0 32 318   66
                               
Powell Field Station   None   0.00 0.00 0.26 0.61 1.42 0.26 0.50 0.24 1.58 1.40 0.24 0.13   6.64
  1981-2010 Normals   0.21 0.13 0.29 0.51 1.40 1.35 0.87 0.52  0.65 0.56 0.18 0.13    6.80
  Percent of Normal     0  0 90 120 101 19 57 46 243 250 133 100   98
Snowfall    0.0  0 T 0.0 0.0 0.0 0.0 0.0 0.0 1.5 T 1.0   2.5
1981-2010 Normals   2.3 0.5 2.5 0.5 0.5 0.0 0.0 0.0 0.1  1.2 1.3 1.2   10.1
  Percent of Normal     0 0 0 0 0 0 0 0 0 125 0 83    25
                               
Thermopolis   None   0.10 0.25 2.52 3.32 1.30 0.02 0.02 0.72 3.16 2.49 0.94 0.35   15.19
  1981-2010 Normals   0.35 0.45 0.87 1.46 1.86 1.51 0.88 0.58 1.23 1.26 0.80 0.46    11.71
  Percent of Normal     29 56 290 227 70 1 2 124 257 198 118 76   130
Snowfall    1.5 5.0 2.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8.0 5.0    21.5
1981-2010 Normals   5.6  4.6 2.5 2.8 0.4 0.0 0.0 0.0 0.2 2.4 3.7 4.5   26.7
  Percent of Normal     27 109 80 0 0 0 0 0 0 0 216 111   81

Climate Division 5 - Powder and Tongue Drainages
Climate Division:
Powder / Tongue (Division Averages)
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
  Average Temperature   26.2 33.1 37.4 43.8 50.3 67.1 70.3 66.5 57.7 48.4 39.9 14.9   46.3
  20th Century Average   19.6 23.8 31.1 41.2 50.8 60.2 68.2 66.5 55.9 44.6 31.1 22.4   43.0
  Departure from Avegage   6.6 9.3 6.3 2.6 -0.5 6.9 2.1 0.0 1.8 3.8 8.8 -7.5   3.3
  Rank: Warm to Cold (122 yrs)   16 4 11 29  69 3  32 66 41 16 3 111   3
  Rank: Cold to Warm (122 yrs)   106 119 112 94 54 120 91 57 82 107 120 12   120
  Precipitation   0.43 0.74 1.37 2.90 1.64 0.74 0.87 1.06 2.89 1.11 0.58 0.86   15.19
  20th Century Average   0.63 0.61 1.05 1.85 2.54 2.35 1.40 0.99 1.28 1.16 0.77 0.65   15.28
  Percent of Average    68 121 130 107 65 31 62 110 226 96 75 132   99
  Rank: Dry to Wet (122 yrs)   35 85 90 107 22 7 29 80 119 59 40 95   59
  Rank: Wet to Dry (122 yrs)   87 38 33 16 101 116 94 43 4 64 83 28   64
    

Station Name:
 
Drought
Conditions
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
 click on location   D0 D1                              
 for graph D2 D3 D4                              
Buffalo Airport None    0.13 0.46 0.65 2.17 1.51 0.39 0.49 0.52 3.24 1.99 0.49 0.25   12.29
1981-2010 Normals    0.42  0.35  0.92  1.30  2.53  2.28  1.66  0.81  1.31  0.93  0.54  0.40    13.45
  Percent of Normal     31 131 71 167 60 17 30 64 247 214 91 63    91
                               
Sheridan Arpt None   0.56 0.89 1.59 3.36 1.06 0.39 0.22 1.44 3.71 1.45 1.28 1.00   16.95
  1981-2010 Normals    0.56  0.54  0.98  1.60  2.35 2.12  1.18  0.72  1.43  1.41  0.71  0.56   14.16
  Percent of Normal     100  165 162 210 45 18 19 200 259 103 180 179    120
                               
                               
Kaycee None   0.16 0.21 0.53 2.85 2.21 0.30 0.14 0.58 3.23 0.61 0.20 0.80   11.82
  1981-2010 Normals   0.30 0.34 0.74 1.46 2.37 1.84 1.42 0.80 1.18 1.04 0.57 0.31    12.37
  Percent of Normal     53 62 72 195 93 16 10 73 274 59 35 258    96
Snowfall    2.0 6.0 2.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 3.0 9.0   23.0
1981-2010 Normals   5.9 6.3 8.0 4.7 0.6 0.1 0.0 0.0 0.2 1.5 4.2 6.0   37.5
  Percent of Normal     34  95 25 21 0 0 0 0 0 0 71 150   61
                               

Climate Division 6 - Belle Fourche Drainage
Climate Division:
Belle Fourche (Division Averages)
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
  Average Temperature   26.0 33.2 38.4 43.9 51.3 68.6 71.5 67.0 58.6 49.4 40.7 14.1   46.9
  20th Century Average   19.0 23.1 30.6 41.4 51.3 60.9 68.8 67.0 56.4 45.0 31.0 22.1   43.1
  Departure from Avegage   7.0 10.1 7.8 2.5 0.0 7.7 2.7 0.0 2.2 4.4 9.7     3.8
  Rank: Warm to Cold (122 yrs)   16 4 8  30 59 2 27 62 37 13 2 114   2
  Rank: Cold to Warm (122 yrs)   106 119 115 93 64 121 96 61 86 110 121 9   121
  Precipitation   0.39 0.83 1.49 2.21 1.06 0.94 1.54 1.51 2.11 0.62 0.52 0.87   14.09
  20th Century Average   0.59 0.59 0.98 1.75 2.66 2.83 1.84 1.33 1.32 1.14 0.69 0.64    16.36
  Percent of Average    66 141 152 126 40 33 84 114 160 54 75 136   86
  Rank: Dry to Wet (122 yrs)   36 97 102 87 10 8 55 75 102 31 48 91   34
  Rank: Wet to Dry (122 yrs)   86 26 21 36 113 115 68 48 21 92 75 32   89
    

Station Name:
 
Drought
Conditions
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
 click on location   D0 D1                              
 for graph D2 D3 D4                              
Gillette Airport   D1   0.40 1.11 1.11 2.55 0.67 0.44 1.32 1.56 2.50 1.45 0.28 0.85   14.24
1981-2010 Normals    0.39 0.39  0.96  1.47  2.45 2.21  1.66  0.95  1.19  1.27  0.55  0.40    13.89
  Percent of Normal     103 285 116 173 27 20 80 164 210 114 51 213   103

Climate Division 7 - Cheyenne and Niobrara Drainages
Climate Division:
Cheyenne / Niobrara (Division Avgs)
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
  Average Temperature   26.3 33.5 38.6 44.8 51.0 69.4 72.1 67.7 59.5 50.5 40.6 16.5   47.5
  20th Century Average   20.3 24.6 32.1 42.5 52.4 62.5 70.3 68.4 57.6 45.9 31.8 23.0   44.3
  Departure from Avegage   6.0 8.9 6.5 2.3 -1.4 6.9 1.8 -0.7 1.9 4.6 8.8 -6.5   3.3
  Rank: Warm to Cold (122 yrs)   22 5 10  30 78 3 36 76 43 7 3 111   3
  Rank: Cold to Warm (122 yrs)   100 118 113 93 45 120 87 47 80 116 120 12   120
  Precipitation   0.21 0.63 1.38 2.00 1.67 1.17 1.95 1.27 1.33 0.22 0.36 0.85   13.04
  20th Century Average   0.42 0.46 0.76 1.68 2.53 2.34 1.78 1.21 1.14 0.95 0.55 0.48   14.30
  Percent of Average    50 137 182 119 66 50 110 105 117 23 65 177   91
  Rank: Dry to Wet (122 yrs)   22 90 112 86 34 22 84 74 80 8 39 114   45
  Rank: Wet to Dry (122 yrs)   100 33 11 37 89 101 39 49 43 115 84 9   78
    

Climate Division 8 - Lower Platte Drainage
Climate Division:
Lower Platte (Division Averages)
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
  Average Temperature   26.6 33.0 37.1 43.0 49.5 66.9 70.5 66.1 58.9 50.8 40.6 21.2   47.0
  20th Century Average   22.8 25.9 32.1 41.2 50.8 60.7 68.0 66.2 56.4 45.2 32.3 24.7   43.9
  Departure from Avegage   3.8 7.1 5.0 1.8 -1.3 6.2 2.5 -0.1 2.5 5.6 8.3 -3.5   3.2
  Rank: Warm to Cold (122 yrs)    33 6 18 38  86 3  25 64 30 3 3 103   4
  Rank: Cold to Warm (122 yrs)    89 117 105 85 37 120 98 59 93 120 120 20   119
  Precipitation   0.62 0.79 2.19 3.40 2.49 0.66 0.64 1.32 0.95 0.23 0.62 0.88   14.79
  20th Century Average   0.51 0.59 0.97 1.90 2.55 2.05 1.58 1.17 1.21 1.05 0.68 0.63   14.89
  Percent of Average   122 134 226 179 98 32 41 113 79 22 91 140   99
  Rank: Dry to Wet (122 yrs)   89 95 119 113 68 7 5 79 56 7 64 98   64
  Rank: Wet to Dry (122 yrs)   33 28 4 10 55 116 118 44 67 116 59 25   59
    

Station Name:
 
Drought
Conditions
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
 click on location   D0 D1                              
 for graph D2 D3 D4                              
Casper Airport   None   0.99 0.47 1.36 3.63 3.01 1.17 0.24 1.30 1.55 0.16 0.38 1.31   15.57
1981-2010 Normals    0.51 0.57  0.82  1.29  2.02  1.61  1.41  0.85  1.08  1.11  0.76  0.49    12.52
  Percent of Normal     194 82 166 281 149 73 17 153 144 14 50 267    124
Snowfall   13.4  15.2 13.4 14.5 0.0 0.0 0.0 0.0 0.0 T 3.2 22.2   81.9
1981-2010 Normals   9.1 9.8 10.9 11.6 2.9 0.1 0.0 0.0 1.8 7.4 10.3 11.0   74.9
  Percent of Normal     147 155 123 125 0 0 0 0 0 0 31 202    109
                               
Cheyenne Arpt  None   0.48 0.72 2.33 3.13 2.03 2.08 1.08 1.05 0.80 0.27 0.38 0.43   14.78
  1981-2010 Normals    0.33  0.47  1.05  1.78  2.34  2.34  2.19 1.95  1.48  0.93  0.59  0.49   15.94
  Percent of Normal     145  153 222 176 87 89 49 54 54 29 64 88    93
Snowfall    8.9 11.1 24.9 19.7 1.6 0.0 0.0 0.0 T T 3.8 6.2   76.2
1981-2010 Normals   5.9 7.9 11.3 10.2 2.3 0.0 0.0 0.0 1.3 5.0  8.0 8.4    60.3
  Percent of Normal     151 141 220 193 70 0 0 0 0 0 48 74   126
                               

Climate Division 9 - Wind River Drainage
Climate Division:
Wind River (Division Averages)
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
  Average Temperature   21.4 29.9 33.8 41.7 47.3 63.1 65.9 62.5 54.3 45.4 35.6 15.0   43.0
  20th Century Average   17.3 22.0 29.0 38.3 48.0 57.0 64.7 62.8 52.9 41.8 27.9 19.5   40.1
  Departure from Avegage   4.1 7.9 4.8 3.4 -0.7 6.1 1.2 -0.3 1.4 3.6 7.7 -4.5   2.9
  Rank: Warm to Cold (122 yrs)    29 5 15  24  70 2 43 71 42 16 3 102   3
  Rank: Cold to Warm (122 yrs)   93 118 108 99 53 121 80 52 81 107 120 21   120
  Precipitation   0.60 0.64 2.64 3.07 3.33 0.50 0.26 0.79 2.37 2.17 0.92 2.21   19.50
  20th Century Average   0.93 0.81 1.26 1.89 2.25 1.67 1.04 0.88 1.19 1.20 0.96 0.84   14.92
  Percent of Average    65 79 210 162 148 30 25 90 199 181 96 263   131
  Rank: Dry to Wet (122 yrs)   33 43 119 113 100 13 2 68 113 107 59 121   115
  Rank: Wet to Dry (122 yrs)   89 80 4 10 24 110 121 55 10 16 64 2   8
    

Station Name:
 
Drought
Conditions
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
 click on location   D0 D1                              
 for graph D2 D3 D4                              
Lander Airport None   0.42 0.50 4.59 4.61 5.03 0.57 T 0.52 1.68 0.98 1.49 0.90   21.29
  1981-2010 Normals    0.41  0.58  1.16  1.87  2.20  1.27  0.78 0.61  1.05  1.29  0.86  0.58   12.66
  Percent of Normal     102  86 396 247 229 45 0 85 160 76 173 155    168
Snowfall    5.3  3.9 33.3 4.3 T 0.0 0.0 0.0 0.0 0.0 14.0 9.1   69.9
1981-2010 Normals   7.6 10.3 16.1 16.8 4.8 0.1 0.0 0.0 2.7 9.8  13.1 10.1    91.4
  Percent of Normal     70 38 207 26 0 0 0 0 0 0 107 90   76
                               
Riverton Airport  None   0.40 0.28 2.13 3.31 2.77 0.39 T 0.22 1.98 1.39 0.55 0.77    14.41
  1981-2010 Normals    0.24  0.27  0.55  1.30  1.72  1.28  0.89  0.57  0.90  0.89  0.50  0.32    9.43
  Percent of Normal     167 104 387 255 161 30 0 44 220 156 110 241   153
Snowfall    5.3 2.6 21.5 12.7 T 0.0 0.0 0.0 0.0 0.1 4.3 12.6   59.1
                               
Dubois  None   0.23 0.13 1.05 1.01 2.39 0.68 0.58 0.48 2.61 1.79 0.50 1.05   12.50
  1981-2010 Normals   0.24 0.38 0.40 1.10 1.64 1.28 1.11 0.86 1.24 0.81 0.57 0.28    9.91
  Percent of Normal     96 34 263 92 146 53 52 56 210 221 88 375     126
Snowfall    4.0  1.5 14.7 2.0 T 0.0 0.0 0.0 1.0 3.0 6.0 23.1   55.3
1981-2010 Normals   3.9 5.7 6.0 8.5 3.9 0.6 0.0 0.0 2.6 3.0 5.8 5.1   45.1
  Percent of Normal     103 26 245 24 0 0 0 0 38 100 103 453   123
                               
Riverton  None   0.49 0.19 2.70 3.82 2.59 0.12 0.13 0.22 1.75 1.55 0.75 0.93   15.24
  1981-2010 Normals   0.28 0.33 0.56 0.98 1.45 1.21 0.78 0.50 0.83 0.85 0.41 0.24    8.42
  Percent of Normal     175  58 482 390 179 10 17 44 211 182 183 388     181
Snowfall    7.7  2.7 22.1 9.0 T 0.0 0.0 0.0 0.0 T 7.3 12.9   61.7
1981-2010 Normals    4.8  6.0  5.9  6.1 1.2 0.0 0.0 0.0 0.3 3.7 4.3 4.8   37.1
  Percent of Normal     160 45 375 148 0 0 0 0 0 0 170 269   166

Climate Division 10 - Upper Platte Drainage
Climate Division:
Upper Platte (Division Averages)
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
  Average Temperature   20.9 28.0 32.9 40.0 46.4 63.2 66.2 62.6 55.0 46.8 36.8 18.9   43.1
  20th Century Average   18.3 21.7 28.0 37.5 47.4 57.1 64.5 62.6 52.9 41.8 28.3 20.2   40.0
  Departure from Avegage   2.6 6.3 4.9 2.5 -1.0 6.1 1.7 0.0 2.1 5.0 8.5 -1.3   3.1
  Rank: Warm to Cold (122 yrs)   39 11 18  34 75  2  27 66 36 6 3 81   5
  Rank: Cold to Warm (122 yrs)   83 112 105 89 48 121 96 57 87 117 120 42   118
  Precipitation   0.95 0.69 1.93 2.62 2.46 0.51 0.33 0.42 1.26 0.71 0.88 0.96   13.72
  20th Century Average   0.80 0.83 1.06 1.58 1.78 1.27 1.10 0.95 1.08 1,09 0.83 0.82   13.19
  Percent of Average    119 83 182 166 138 40 30 44 117 65 106 117   104
  Rank: Dry to Wet (122 yrs)   90 45 116 115 98 21 3 12 82 38 71 83   79
  Rank: Wet to Dry (122 yrs)   32 78 7 8 25 102 120 111 41 85 52 40   44
    

Station Name:
 
Drought
Conditions
  Jan
2016
Feb
2016
Mar
2016
Apr
2016
May
2016
Jun
2016
Jul
2016
Aug
2016
Sep
2016
Oct
2016
Nov
2016
Dec
2016
  Total for
2016
 click on location   D0 D1                              
 for graph D2 D3 D4                              
Jeffrey City  None   0.45 0.46 1.44 2.86 2.92 0.23 0.04 0.63 1.93 0.50 0.31 0.72   12.49
  1981-2010 Normals    0.31  0.41 0.86  1.27 1.85 1.15 0.89  0.60  0.80 0.91 0.59 0.42    10.06
  Percent of Normal    145 112 167 225 158 20 4 105 241 55 53 171   124
Snowfall   4.1  4.0 17.0 19.0 1.0 0.0 0.0 0.0 0.0 0.0 6.0 8.0   59.1
1981-2010 Normals   4.6 6.7 9.4 10.2 4.9 0.4 0.0 0.0 1.4 7.3 6.6 5.5    57.0
  Percent of Normal    89 60 181 186 20 0 0 0 0 0 91 145    104

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