081  
CDUS45 KRIW 210031  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
631 PM MDT THU JUL 20 2023  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR JULY 20 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1939 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 72 4:59 PM 99 2005 90 -18 94  
2012  
MINIMUM 56 10:46 AM 43 1972 54 2 55  
2015  
AVERAGE 64 72 -8 75  
 
PRECIPITATION (IN)  
TODAY 0.49 0.80 1990 0.04 0.45 0.00  
MONTH TO DATE 0.58 0.78 -0.20 0.31  
SINCE JUN 1 3.87 2.12 1.75 0.52  
SINCE JAN 1 10.72 7.63 3.09 8.40  
 
SNOWFALL (IN)  
TODAY 0.0 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE JUN 1 0.0 0.1 -0.1 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 1 0 1 0  
MONTH TO DATE 22 9 13 1  
SINCE JUN 1 169 135 34 126  
SINCE JUL 1 22 9 13 1  
 
COOLING  
TODAY 0 7 -7 10  
MONTH TO DATE 75 116 -41 163  
SINCE JUN 1 82 167 -85 215  
SINCE JAN 1 82 171 -89 215    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 7.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97  
LOWEST 50  
AVERAGE 74  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 90 100 1982  
MINIMUM TEMPERATURE (F) 54 39 1949  
 
SUNRISE AND SUNSET  
JULY 20 2023..........SUNRISE 5:45 AM MDT SUNSET 8:39 PM MDT  
JULY 21 2023..........SUNRISE 5:46 AM MDT SUNSET 8:38 PM MDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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