563  
CDUS45 KRIW 010045  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
645 PM MDT TUE MAR 31 2026  
   
...............................  
 
   
..THE CASPER WY CLIMATE SUMMARY FOR MARCH 31 2026  
 
VALID TODAY AS OF 0600 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1939 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 54 4:22 PM 77 2012 53 1 50  
MINIMUM 30 6:25 AM 5 1954 26 4 28  
AVERAGE 42 40 2 39  
 
PRECIPITATION (IN)  
TODAY 0.00 1.08 2017 0.04 -0.04 0.06  
MONTH TO DATE 0.16 0.84 -0.68 1.33  
SINCE MAR 1 0.16 0.84 -0.68 1.33  
SINCE JAN 1 0.70 1.89 -1.19 2.05  
 
SNOWFALL (IN)  
TODAY MM 0.4 MM 0.0  
MONTH TO DATE 1.6 10.3 -8.7 8.0  
SINCE MAR 1 1.6 10.3 -8.7 8.0  
SINCE JUL 1 17.3 58.6 -41.3 18.5  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 23 25 -2 26  
MONTH TO DATE 586 907 -321 849  
SINCE MAR 1 586 907 -321 849  
SINCE JUL 1 4763 6269 -1506 5864  
 
COOLING  
TODAY 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 23 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 11.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92  
LOWEST 41  
AVERAGE 67  
   
......................................................  
 
THE CASPER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 54 75 2004  
2012  
MINIMUM TEMPERATURE (F) 26 -1 1975  
 
SUNRISE AND SUNSET  
MARCH 31 2026.........SUNRISE 6:49 AM MDT SUNSET 7:31 PM MDT  
APRIL 1 2026.........SUNRISE 6:48 AM MDT SUNSET 7:32 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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