396  
CDUS45 KRIW 270735  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1235 AM MST WED DEC 27 2023  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 26 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1939 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 35 1:56 PM 53 1980 34 1 41  
2005  
MINIMUM 17 12:21 AM -17 2017 14 3 21  
AVERAGE 26 24 2  
 
PRECIPITATION (IN)  
YESTERDAY T 0.23 1960 0.02 -0.02 0.00  
MONTH TO DATE 0.06 0.51 -0.45 0.74  
SINCE DEC 1 0.06 0.51 -0.45 0.74  
SINCE JAN 1 15.41 12.12 3.29 13.36  
 
SNOWFALL (IN)  
YESTERDAY 0.1 6.3 2009 0.3 -0.2 0.0  
MONTH TO DATE 1.0 9.2 -8.2 14.6  
SINCE DEC 1 1.0 9.2 -8.2 14.6  
SINCE JUL 1 14.3 26.6 -12.3 32.5  
SNOW DEPTH T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 39 41 -2 34  
MONTH TO DATE 841 1041 -200 1136  
SINCE DEC 1 841 1041 -200 1136  
SINCE JUL 1 2506 2843 -337 2951  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 342 443 -101 544    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 10.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 81 8:00 AM  
LOWEST 41 2:00 PM  
AVERAGE 61  
   
......................................................
 
 
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 2023......SUNRISE 7:36 AM MST SUNSET 4:38 PM MST  
DECEMBER 28 2023......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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