211  
CDUS45 KRIW 270045  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
645 PM MDT SAT APR 26 2025  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR APRIL 26 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 73 3:09 PM 80 1946 59 14 57  
1981  
2012  
MINIMUM 33 12:23 AM 17 1988 30 3 41  
2010  
AVERAGE 53 44 9 49  
 
PRECIPITATION (IN)  
TODAY 0.00 1.18 2016 0.05 -0.05 0.11  
MONTH TO DATE 0.96 1.17 -0.21 1.21  
SINCE MAR 1 2.29 2.01 0.28 1.78  
SINCE JAN 1 3.01 3.06 -0.05 2.81  
 
SNOWFALL (IN)  
TODAY MM 0.3 MM 0.0  
MONTH TO DATE 7.7 9.5 -1.8 6.6  
SINCE MAR 1 15.7 19.8 -4.1 9.3  
SINCE JUL 1 26.2 68.1 -41.9 38.6  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 12 21 -9 16  
MONTH TO DATE 623 605 18 555  
SINCE MAR 1 1472 1512 -40 1448  
SINCE JUL 1 6487 6874 -387 6403  
 
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 24 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 8.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100  
LOWEST 17  
AVERAGE 59  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 81 1952  
1992  
MINIMUM TEMPERATURE (F) 30 15 1984  
 
SUNRISE AND SUNSET  
APRIL 26 2025.........SUNRISE 6:06 AM MDT SUNSET 8:01 PM MDT  
APRIL 27 2025.........SUNRISE 6:05 AM MDT SUNSET 8:03 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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