National Weather Service United States Department of Commerce
Climate Data
Monthly Numbers
Interested in temperature and precipitation numbers in Harrison? Check them out on a monthly basis below.
 
Climate Summary (Sep 2021)
 
...THE HARRISON CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2021...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1891 TO 2021

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR'S         
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)       
                                          NORMAL                       
................................................................
TEMPERATURE (F)
RECORD
 HIGH            106   09/03/1939                                      
                       09/05/1913                                      
                       09/04/1913                                      
 LOW              30   09/29/1967                                      
                       09/29/1908                                      
HIGHEST           94   09/04         80      14       89  09/05        
LOWEST            45   09/23         59     -14       46  09/20        
AVG. MAXIMUM    85.1               81.4     3.7     79.8               
AVG. MINIMUM    60.4               58.5     1.9     59.4               
MEAN            72.8               69.9     2.8     69.6               
DAYS MAX >= 90     4                4.4    -0.4        0               
DAYS MAX <= 32     0                0.0     0.0        0               
DAYS MIN <= 32     0                0.0     0.0        0               
DAYS MIN <= 0      0                0.0     0.0        0               

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       11.80   1930                                            
 MINIMUM        0.08   1928                                            
TOTALS          2.30               4.06   -1.76     3.42               
DAILY AVG.      0.08               0.14   -0.06     0.11               
DAYS >= .01        5                8.0    -3.0        7               
DAYS >= .10        2                                   4               
DAYS >= .50        2                                   3               
DAYS >= 1.00       2                1.3     0.7        1               
GREATEST
 24 HR. TOTAL   1.15   09/04 TO 09/05                                  
 STORM TOTAL    1.11                                                   
 (MM/DD(HH))                                                           

SNOWFALL (INCHES)
TOTALS           0.0                0.0     0.0      0.0               
 LIQUID EQUIV   0.00               0.00    0.00     0.00               
SINCE 7/1        0.0                0.0     0.0       MM               
 LIQUID 7/1     0.00               0.00    0.00       MM               
SNOWDEPTH AVG.     0                                                   
DAYS >= TRACE      0                 MM      MM        0               
DAYS >= 1.0        0                                   0               
GREATEST
 SNOW DEPTH        0                                                   
 24 HR TOTAL     0.0                                 

DEGREE DAYS
HEATING TOTAL     10                 34     -24       23               
 SINCE 7/1        10                 33     -23       23               
COOLING TOTAL    248                182      66      168               
 SINCE 1/1      1433               1429       4     1370               

FREEZE DATES
RECORD
 EARLIEST     09/13/1902                                               
 LATEST       05/17/1912                                               
EARLIEST                        MM                                     
LATEST                          04/22                                  
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.6                                    
HIGHEST WIND SPEED/DIRECTION    25/280    DATE  09/04                  
HIGHEST GUST SPEED/DIRECTION    37/280    DATE  09/04                  

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM                                       
AVERAGE SKY COVER           0.18                                       
NUMBER OF DAYS FAIR           23                                       
NUMBER OF DAYS PC              7                                       
NUMBER OF DAYS CLOUDY          0                                       


WEATHER CONDITIONS. NUMBER OF DAYS WITH 
THUNDERSTORM              4     MIXED PRECIP               0          
HEAVY RAIN                3     RAIN                       4           
LIGHT RAIN                5     FREEZING RAIN              0          
LT FREEZING RAIN          0     HAIL                       0         
HEAVY SNOW                0     SLEET                      0         
FOG                      10     FOG W/VIS <= 1/4 MILE      2           
HAZE                      1                                            

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

&&

...DATA FOR HARRISON FOR SEPTEMBER 2021...

.SUMMARY...
AT HARRISON, THE MONTH OF SEPTEMBER ENDED UP NEARLY THREE DEGREES 
ABOVE THE 30-YEAR MEAN. THE MOST SIGNIFICANT CONTRIBUTION TO THIS 
WAS HIGH TEMPERATURES, WHICH WERE NEARLY FOUR DEGREES ABOVE THE 
AVERAGE FOR SEPTEMBER. EVEN SO, THE MONTH MANAGED TO STAY OUT OF THE 
TOP 10 WARMEST. 

RAINFALL WAS SCATTERED THROUGH THE MONTH, COMING LARGELY IN THE 
FIRST WEEK (4TH-5TH), THIRD WEEK (15TH, 21ST), AND AT THE END 
(30TH). HOWEVER, THIS WAS STILL THE DRIEST SEPTEMBER IN TWO YEARS. 

.MONTHLY AVERAGES...
THE AVERAGE HIGH, LOW AND MONTHLY TEMPERATURES WERE THE WARMEST 
SINCE 2019. 

.DAILY TEMPERATURES...
DAILY TEMPERATURES WERE ABOVE AVERAGE ON 21 DAYS, AVERAGE ON ONE 
DAY, AND BELOW AVERAGE ON EIGHT DAYS. 

.DAILY RECORD TEMPERATURES TIED OR BROKEN DURING THE MONTH... 
NO DAILY TEMPERATURE RECORDS WERE TIED OR BROKEN DURING THE MONTH. 

.MONTHLY RAINFALL...
IT WAS THE DRIEST SEPTEMBER SINCE 2019. 

.DAILY RAINFALL RECORDS TIED OR BROKEN DURING THE MONTH...
NO DAILY RAINFALL RECORDS WERE TIED OR BROKEN DURING THE MONTH. 

.MISCELLANEOUS PHENOMENA...
NONE.