133  
CDUS45 KRIW 220726  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
126 AM MDT TUE APR 22 2025  
   
...............................  
 
   
..THE CASPER WY CLIMATE SUMMARY FOR APRIL 21 2025  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1939 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 60 3:07 PM 83 1989 57 3 67  
MINIMUM 28 11:49 PM 14 1973 29 -1 18  
AVERAGE 44 43 1  
 
PRECIPITATION (IN)  
YESTERDAY 0.02 0.63 1947 0.05 -0.03 0.00  
MONTH TO DATE 0.78 0.91 -0.13 1.05  
SINCE MAR 1 2.11 1.75 0.36 1.62  
SINCE JAN 1 2.83 2.80 0.03 2.65  
 
SNOWFALL (IN)  
YESTERDAY MM 3.0 1996 0.3 MM 0.0  
MONTH TO DATE 7.7 8.0 -0.3 6.6  
SINCE MAR 1 15.7 18.3 -2.6 9.3  
SINCE JUL 1 26.2 66.6 -40.4 38.6  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 21 22 -1 22  
MONTH TO DATE 516 498 18 473  
SINCE MAR 1 1365 1405 -40 1366  
SINCE JUL 1 6380 6767 -387 6321  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 36 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 50 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 14.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 8:00 AM  
LOWEST 16 4:00 PM  
AVERAGE 57  
   
......................................................  
 
THE CASPER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 58 81 1994  
MINIMUM TEMPERATURE (F) 29 12 1967  
 
SUNRISE AND SUNSET  
APRIL 22 2025.........SUNRISE 6:12 AM MDT SUNSET 7:57 PM MDT  
APRIL 23 2025.........SUNRISE 6:11 AM MDT SUNSET 7:58 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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