2021 Cooperative Observer Water Year Precipitation
Western and Central Wyoming
PRELIMINARY WATER YEAR PRECIPITATION TOTALS
DATA AS OF: OCTOBER 2021
FILE CREATED AT: Fri Nov 5 17:07:29 GMT 2021
BIG HORN COUNTY WY STATIONS PRECIPITATION (INCHES)
SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL
KGEY GREYBULL ASOS 0.40 T 0.04 0.01 0.30 0.03 0.77 0.53 0.02 0.09 1.12 0.01 3.32 -4.19 44
GBLW4 GREYBULL COOP M M M M M M M M M M M M M M M
SHLW4 SHELL 1NE COOP 0.96 T 0.42 0.04 1.22 0.41 1.29 1.30 0.24 0.61 1.62 0.56 8.67 -1.92 81
BSNW4 BASIN COOP 0.70 0.07 0.13 0.04 0.79 T 0.98 0.60 0.11 0.03 0.94 0.03 4.42 -2.42 64
DEVW4 DEAVER COOP 0.39 0.13 0.03 0.03 0.63 T 0.19 0.45 0.11 0.24 0.78 0.05 3.03 -2.37 56
EMBW4 EMBLEM COOP 0.35 0.09 0.13 0.03 1.30 0.01 0.94 0.61 0.08 0.23 0.79 0.09 4.65 -2.72 63
LOVW4 LOVELL COOP 0.65 T 0.02 T 0.65 T 0.76 0.67 0.04 0.20 0.85 0.02 3.86 -2.48 60
RONW4 RAIRDEN 2WSW COOP 0.48 T 0.11 0.05 0.58 0.04 0.85 0.58 0.04 0.37 0.79 0.08 3.97 -3.09 56
FREMONT COUNTY WY STATIONS PRECIPITATION (INCHES)
SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL
KLND LANDER ASOS 0.67 0.18 0.59 0.09 0.15 2.71 2.44 2.43 0.86 1.09 0.62 0.49 12.32 -0.34 97
LNRW4 LANDER 1N COOP M M M M M M M M M M M M M M M
KRIW RIVERTON ASOS 0.23 0.05 0.36 0.13 0.27 1.26 1.47 1.35 0.62 0.69 0.80 0.46 7.69 -1.74 81
RIVW4 RIVERTON COOP 0.18 0.03 0.36 0.14 0.22 1.24 1.37 1.23 0.46 0.18 1.16 0.55 7.12 -1.30 84
ATLW4 ATLANTIC CITY COOP 0.41 1.20 1.02 0.39 1.06 1.95 1.30 1.31 0.41 0.88 0.92 0.73 11.58 M M
JEFW4 JEFFREY CITY COOP 0.23 0.15 0.60 0.27 0.30 0.71 0.36 1.49 1.61 0.30 1.04 0.73 7.79 -2.27 77
SBDW4 BOYSEN DAM COOP 0.21 T 0.26 0.05 0.67 0.24 0.89 0.97 0.94 0.33 1.25 0.34 6.15 -2.73 69
SSHW4 SHOSHONI COOP 0.03 T 0.22 0.08 0.38 0.65 0.73 1.21 0.83 0.05 1.02 0.33 5.53 +-2.00 73
DBOW4 DUBOIS COOP 0.70 0.47 0.10 0.16 0.91 0.70 1.66 2.79 0.16 1.38 1.75 0.70 11.48 +1.57 115
BRRW4 BURRIS COOP M M M M M M M M M M M M M M M
PVLW4 PAVILLION COOP 0.10 T 0.08 0.09 0.10 0.69 1.09 0.82 0.49 0.44 0.87 0.37 5.14 -2.78 64
MTNW4 DIVERSION DAM COOP 0.46 M M M M M M M M M M M M M M
HOT SPRINGS COUNTY WY STATIONS PRECIPITATION (INCHES)
SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL
THMW4 THERMOPOLIS COOP 0.20 0.01 0.31 0.11 0.79 0.95 1.39 1.17 0.30 0.50 1.15 0.18 7.06 -4.65 60
BMTW4 THERMOPOLIS 9NE COOP 0.36 0.04 0.37 0.10 0.68 0.78 1.92 1.46 0.44 0.71 2.66 0.33 9.85 -2.84 77
THDW4 THERMOPOLIS 8WNW COOP 0.27 0.05 0.35 0.12 0.72 0.48 1.40 1.60 0.32 0.34 1.24 0.22 7.11 M M
HDMW4 HAMILTON DOME COOP M M M M M M M M M M M M M M M
BTXW4 BLACK MOUNTAIN COOP 0.87 0.10 0.73 0.37 1.32 1.51 1.82 1.66 0.85 0.44 1.60 0.16 11.43 -2.82 80
JOHNSON COUNTY WY STATIONS PRECIPITATION (INCHES)
SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL
KBYG BUFFALO ASOS 1.01 T 0.13 0.08 0.35 1.10 0.85 1.05 0.65 0.12 0.23 0.09 5.66 -7.79 42
BUFW4 BUFFALO COOP 1.14 0.04 M M M M 0.97 1.15 0.61 0.32 1.05 0.22 M M M
BFFW4 BUFFALO 5WSW COOP M M M M M M M M M M M M M M M
BLYW4 BILLY CREEK COOP M M M M M M M M M M M M M M M
KCEW4 KAYCEE COOP 0.36 0.10 0.41 0.14 0.45 1.90 0.75 0.29 1.15 0.06 0.71 0.71 7.03 -5.34 56
LINCOLN COUNTY WY STATIONS PRECIPITATION (INCHES)
SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL
AFOW4 AFTON COOP 0.46 1.68 1.47 1.18 2.93 0.29 1.17 2.85 0.14 1.42 2.25 1.20 17.04 -1.12 93
BDFW4 BEDFORD 3SE COOP 0.58 1.53 2.25 1.45 4.18 0.64 1.27 3.41 T 3.08 2.37 1.67 22.43 +1.03 104
CKEW4 COKEVILLE COOP M M M M M M M M M M M M M M M
FBMW4 FOSSIL BUTTE NAT MON COOP 0.69 1.05 0.57 0.92 1.31 0.55 0.74 2.20 0.29 0.55 1.73 1.12 11.72 +0.72 106
FNTW4 FONTENELLE DAM COOP 0.02 0.23 0.19 0.30 0.34 0.17 0.25 0.84 0.06 0.08 1.04 0.77 4.29 -3.24 56
KMRW4 KEMMERER 2N COOP 0.32 0.45 0.43 0.60 0.87 0.48 0.45 2.30 0.91 0.96 3.15 1.27 12.19 +1.84 117
LBGW4 LA BARGE COOP M M M M M M M M M M M M M M M
NATRONA COUNTY WY STATIONS PRECIPITATION (INCHES)
SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL
KCPR CASPER ASOS 0.32 0.04 0.68 0.48 0.41 2.83 0.87 0.60 1.97 1.83 0.94 0.79 11.76 -0.76 93
CSWW4 CASPER 1SW COOP 0.48 0.04 0.63 0.52 0.31 2.08 1.24 1.30 1.59 1.34 0.31 1.28 11.12 M M
CWWW4 CASPER WWTP COOP 0.38 0.02 0.58 0.35 0.29 2.47 0.80 0.99 1.65 2.20 0.96 1.19 11.88 -0.59 95
MWTW4 MIDWEST COOP 0.81 0.02 0.14 0.06 0.46 1.43 0.43 0.44 0.85 0.26 1.05 1.10 7.05 -5.49 56
ACVW4 PATHFINDER DAM COOP 0.14 0.02 0.67 0.59 0.64 1.07 0.89 1.67 1.47 4.49 0.98 0.87 13.50 +2.55 123
PRSW4 POWDER RIVER SCHOOL COOP 0.17 0.01 0.19 0.08 0.54 1.44 0.64 0.30 1.61 1.44 0.82 0.96 8.20 -2.23 78
BCRW4 BATES CREEK COOP 0.09 T 1.20 0.84 0.54 1.46 0.49 1.11 1.63 0.92 0.54 1.64 10.46 -2.55 80
PARK COUNTY WY STATIONS PRECIPITATION (INCHES)
SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL
KCOD CODY AWOS 0.20 0.09 0.01 T 0.11 0.07 0.19 0.82 0.06 0.14 1.51 T 3.20 M M
COPW4 CODY COOP 0.73 0.32 0.10 0.04 1.28 0.04 1.03 1.66 0.37 0.41 2.06 0.14 8.18 -2.38 77
BLBW4 BUFFALO BILL DAM COOP 0.76 0.27 0.07 0.01 1.65 0.21 0.89 1.52 0.41 M M M M M M
OBAW4 CODY 12SE COOP 0.39 T 0.05 0.03 0.72 0.02 0.86 0.92 0.45 0.40 1.51 0.36 5.71 -3.53 61
COYW4 CODY 21SW COOP M M M M M M M M M M M M M M M
CLAW4 CLARK COOP 1.85 0.12 0.03 0.02 0.82 0.01 0.47 0.35 0.35 1.03 1.39 0.09 6.53 -0.67 90
CRDW4 CRANDALL COOP M M M M M M M M M M M M M M M
SUNW4 SUNSHINE 5NE COOP M M M M M M M M M M M M M M M
WAPW4 WAPITI 1NE COOP M M M M M M M M M M M M M M M
NFKW4 PAHASKA COOP 3.61 3.13 1.28 1.08 4.25 1.34 0.99 3.30 0.24 1.24 2.85 1.55 24.86 M M
PFSW4 POWELL FIELD STN COOP 0.29 0.09 0.01 0.02 0.36 T 0.34 0.78 0.17 0.23 1.25 0.02 3.56 -3.24 52
SUBLETTE COUNTY WY STATIONS PRECIPITATION (INCHES)
SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL
KBPI BIG PINEY ASOS 0.04 0.17 0.01 0.02 0.01 0.10 0.61 0.44 0.13 0.30 0.88 0.29 3.00 M M
BPIW4 BIG PINEY COOP M M M M M M 1.54 1.11 0.33 0.41 1.44 0.64 M M M
BNWW4 BONDURANT COOP 1.13 1.80 1.10 1.67 3.11 0.07 0.47 2.40 0.05 0.79 2.26 1.10 15.95 -2.81 85
BRSW4 BOULDER REARING STN COOP 0.12 0.49 0.75 0.26 0.64 0.20 1.32 1.60 0.32 0.24 1.77 0.97 8.68 -1.04 89
CORW4 CORA COOP M M M M M M M M M M M M M M M
PNDW4 PINEDALE COOP 0.21 0.78 0.67 0.50 0.92 0.44 0.86 1.83 0.14 0.64 1.79 1.05 9.83 -1.57 86
DANW4 DANIEL FISH HATCHERY COOP 0.10 0.83 0.43 0.53 0.88 0.22 0.55 1.25 0.08 0.41 1.92 0.85 8.05 -3.67 68
SWEETWATER COUNTY WY STATIONS PRECIPITATION (INCHES)
SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL
KRKS ROCK SPRINGS ASOS 0.07 0.22 0.01 0.05 0.25 0.39 0.07 0.36 0.17 0.07 1.67 0.37 3.70 -4.86 43
RSFW4 ROCK SPRINGS FD COOP 0.31 0.35 0.28 0.27 0.72 0.41 0.41 1.42 0.18 1.33 1.13 0.68 7.49 -2.17 77
GRNW4 GREEN RIVER COOP 0.55 0.28 0.48 0.41 0.90 0.68 0.45 1.36 0.20 0.54 1.54 0.62 8.01 -0.32 96
FGRW4 FLAMING GORGE COOP M M M M M M M M M M M M M M M
FSNW4 FARSON 2NNE COOP 0.06 0.14 0.30 0.08 0.14 0.28 0.21 0.84 0.19 0.69 0.81 1.24 4.98 -4.32 53
BITW4 BITTER CREEK 4NE COOP 0.12 0.22 0.17 0.30 0.30 0.46 0.26 0.69 0.44 0.35 0.66 0.72 4.69 -2.25 67
WMSW4 WAMSUTTER COOP 0.17 0.38 0.59 0.50 0.33 0.88 0.55 0.87 0.71 0.79 1.18 0.77 7.72 -0.46 94
TETON COUNTY WY STATIONS PRECIPITATION (INCHES)
SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL
KJAC JACKSON AWOS 1.81 0.80 0.23 0.90 1.11 0.02 0.58 2.83 0.07 0.43 2.57 0.45 11.80 M M
JFSW4 JACKSON COOP 1.25 1.35 1.01 1.15 1.50 0.12 0.37 3.35 0.33 0.76 3.49 0.72 15.40 -1.44 91
MOOW4 MOOSE COOP 1.77 M 1.40 2.61 4.21 0.44 0.93 3.34 0.09 0.89 3.95 0.43 22.35 +3.19 116
MRAW4 MORAN 5WNW COOP 1.86 3.28 2.39 2.39 3.47 0.45 0.61 3.15 0.25 0.57 2.90 0.78 22.10 -2.55 89
DARW4 DARWIN RANCH COOP 1.00 1.41 0.34 0.29 0.60 0.14 0.66 0.65 0.02 3.22 1.80 1.02 11.15 -4.97 69
ALTW4 ALTA COOP 0.90 2.27 1.61 0.94 3.06 0.81 1.18 3.14 0.48 0.55 4.26 1.17 20.37 -4.92 80
WASHAKIE COUNTY WY STATIONS PRECIPITATION (INCHES)
SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL
KWRL WORLAND ASOS 0.18 0.04 0.09 0.09 0.32 0.19 1.11 1.17 0.05 0.39 0.84 0.10 4.57 +-3.00 60
WORW4 WORLAND COOP 0.13 0.11 0.07 0.11 0.54 0.20 1.19 0.76 0.14 0.28 0.87 0.09 4.49 -3.33 57
TFRW4 TEN SLEEP 4NE COOP 1.19 0.22 0.53 0.27 1.32 1.27 1.50 2.27 0.56 0.43 1.40 0.52 11.48 -1.65 87
TNSW4 TEN SLEEP 16SSE COOP 0.94 0.25 0.52 0.36 1.27 1.04 1.35 1.37 1.33 0.58 1.18 0.36 10.55 -3.02 77
YELLOWSTONE NATIONAL PARK STNS PRECIPITATION (INCHES)
SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL
KP60 LAKE YELLOWSTONE ASOS 2.13 3.25 1.25 1.85 2.71 1.49 M 3.17 0.18 1.52 2.43 1.07 21.63 +3.41 118
LKYW4 LAKE YELLOWSTONE COOP 1.47 2.05 1.34 2.03 2.79 1.09 0.77 2.78 0.21 1.09 3.27 M 18.94 -0.50 97
OLFW4 OLD FAITHFUL COOP 2.08 2.34 1.25 1.75 2.81 1.89 1.20 3.89 0.07 1.05 2.22 0.89 21.44 -3.93 84
BKRW4 BECHLER RIVER COOP 1.30 M M M M M M M 0.39 0.77 2.82 1.13 M M M
EYPW4 EAST ENTRANCE COOP 3.13 2.80 1.23 1.16 3.31 1.07 0.66 3.04 0.53 0.94 3.56 1.47 22.90 M M
YLWW4 MAMMOTH COOP 1.74 1.23 0.64 0.57 1.05 0.87 1.04 2.39 0.05 0.76 2.88 0.59 13.81 -0.60 95
TWRW4 TOWER FALLS RNGR STN COOP 2.19 1.49 0.67 1.04 1.42 0.93 0.87 1.79 0.33 0.88 2.23 0.34 14.18 -2.24 86
LMRW4 LAMAR RNGR STN COOP 2.53 1.47 0.78 0.85 1.90 1.01 0.47 1.54 0.03 1.08 2.62 0.39 14.67 M M
SNKW4 SNAKE RIVER RNGR STN COOP 1.97 3.85 2.34 2.73 4.34 1.23 1.05 3.71 0.05 0.86 2.71 1.07 25.91 -4.08 86
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