338  
CDUS45 KRIW 270734  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1234 AM MST FRI DEC 27 2024  
   
...............................  
 
   
..THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 26 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 39 2:51 PM 53 1980 34 5 35  
2005  
MINIMUM 27 7:14 PM -17 2017 14 13 17  
AVERAGE 33 24 9  
 
PRECIPITATION (IN)  
YESTERDAY T 0.23 1960 0.02 -0.02 T  
MONTH TO DATE 0.02 0.51 -0.49 0.06  
SINCE DEC 1 0.02 0.51 -0.49 0.06  
SINCE JAN 1 9.14 12.12 -2.98 15.14  
 
SNOWFALL (IN)  
YESTERDAY T 6.3 2009 0.3 -0.3 0.1  
MONTH TO DATE T 9.2 -9.2 1.0  
SINCE DEC 1 T 9.2 -9.2 1.0  
SINCE JUL 1 T 26.6 -26.6 14.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 32 41 -9 39  
MONTH TO DATE 796 1041 -245 841  
SINCE DEC 1 796 1041 -245 841  
SINCE JUL 1 2296 2843 -547 2506  
 
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 40 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 55 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 20.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 3:00 AM  
LOWEST 50 11:00 AM  
AVERAGE 66  
   
......................................................  
 
THE CASPER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 34 61 1980  
MINIMUM TEMPERATURE (F) 14 -16 1941  
 
SUNRISE AND SUNSET  
DECEMBER 27 2024......SUNRISE 7:36 AM MST SUNSET 4:39 PM MST  
DECEMBER 28 2024......SUNRISE 7:36 AM MST SUNSET 4:39 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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