061  
CDUS45 KRIW 060045  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
545 PM MST FRI DEC 05 2025  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 5 2025
 
 
VALID TODAY AS OF 0500 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 38 2:51 PM 65 1939 37 1 50  
MINIMUM 27 4:45 PM -27 1972 16 11 17  
AVERAGE 33 26 7 34  
 
PRECIPITATION (IN)  
TODAY 0.00 0.39 2016 0.02 -0.02 0.00  
MONTH TO DATE 0.07 0.10 -0.03 0.00  
SINCE DEC 1 0.07 0.10 -0.03 0.00  
SINCE JAN 1 11.76 11.71 0.05 9.12  
 
SNOWFALL (IN)  
TODAY MM 0.3 MM 0.0  
MONTH TO DATE 1.0 1.7 -0.7 0.0  
SINCE DEC 1 1.0 1.7 -0.7 0.0  
SINCE JUL 1 5.3 19.1 -13.8 T  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 32 39 -7 31  
MONTH TO DATE 189 190 -1 153  
SINCE DEC 1 189 190 -1 153  
SINCE JUL 1 1615 1992 -377 1653  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 467 443 24 538    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 11.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 75  
LOWEST 50  
AVERAGE 63  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 36 63 1939  
MINIMUM TEMPERATURE (F) 16 -24 1972  
 
SUNRISE AND SUNSET  
DECEMBER 5 2025......SUNRISE 7:22 AM MST SUNSET 4:32 PM MST  
DECEMBER 6 2025......SUNRISE 7:23 AM MST SUNSET 4:31 PM MST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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