920  
CDUS45 KRIW 210729  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1229 AM MST SAT DEC 21 2024  
   
...............................  
 
   
..THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 20 2024  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1939 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 56R 2:11 PM 56 1941 34 22 54  
MINIMUM 31 12:34 AM -36 1990 14 17 34  
AVERAGE 44 24 20  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.15 1968 0.02 -0.02 0.00  
MONTH TO DATE 0.01 0.39 -0.38 0.02  
SINCE DEC 1 0.01 0.39 -0.38 0.02  
SINCE JAN 1 9.13 12.00 -2.87 15.10  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.0 1968 0.4 MM 0.0  
MONTH TO DATE T 7.1 -7.1 0.3  
SINCE DEC 1 T 7.1 -7.1 0.3  
SINCE JUL 1 T 24.5 -24.5 13.6  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 21 41 -20 21  
MONTH TO DATE 626 795 -169 621  
SINCE DEC 1 626 795 -169 621  
SINCE JUL 1 2126 2597 -471 2286  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 538 443 95 342    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 16.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 49 12:00 AM  
LOWEST 25 3:00 PM  
AVERAGE 37  
   
......................................................  
 
THE CASPER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 34 53 1969  
2023  
MINIMUM TEMPERATURE (F) 14 -41 1990  
 
SUNRISE AND SUNSET  
DECEMBER 21 2024......SUNRISE 7:34 AM MST SUNSET 4:35 PM MST  
DECEMBER 22 2024......SUNRISE 7:34 AM MST SUNSET 4:35 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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