984  
CDUS45 KRIW 020045  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
645 PM MDT THU MAY 01 2025  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR MAY 1 2025
 
 
VALID TODAY AS OF 0600 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 53 4:29 PM 81 1959 60 -7 59  
MINIMUM 32 2:37 AM 17 2005 32 0 23  
AVERAGE 43 46 -3 41  
 
PRECIPITATION (IN)  
TODAY 0.05 0.93 1946 0.06 -0.01 T  
MONTH TO DATE 0.05 0.06 -0.01 T  
SINCE MAR 1 2.97 2.31 0.66 1.79  
SINCE JAN 1 3.69 3.36 0.33 2.82  
 
SNOWFALL (IN)  
TODAY MM 0.2 MM T  
MONTH TO DATE MM 0.2 MM T  
SINCE MAR 1 15.7 21.0 -5.3 9.3  
SINCE JUL 1 26.2 69.3 -43.1 38.6  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 22 19 3 24  
MONTH TO DATE 22 19 3 24  
SINCE MAR 1 1571 1608 -37 1550  
SINCE JUL 1 6586 6970 -384 6505  
 
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 32 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 10.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100  
LOWEST 50  
AVERAGE 75  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 61 84 1947  
MINIMUM TEMPERATURE (F) 32 17 2005  
 
SUNRISE AND SUNSET  
MAY 1 2025...........SUNRISE 5:59 AM MDT SUNSET 8:07 PM MDT  
MAY 2 2025...........SUNRISE 5:58 AM MDT SUNSET 8:08 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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