020  
CDUS45 KRIW 230031  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
531 PM MST FRI DEC 22 2023  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 22 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 49 3:12 PM 55 1940 34 15 -12  
MINIMUM 30 7:32 AM -42 2022 14 16 -42  
AVERAGE 40 24 16 -27  
 
PRECIPITATION (IN)  
TODAY 0.00 0.23 1941 0.02 -0.02 0.00  
MONTH TO DATE 0.02 0.43 -0.41 0.71  
SINCE DEC 1 0.02 0.43 -0.41 0.71  
SINCE JAN 1 15.37 12.04 3.33 13.33  
 
SNOWFALL (IN)  
TODAY 0.0 0.3 -0.3 0.0  
MONTH TO DATE 0.3 7.8 -7.5 14.3  
SINCE DEC 1 0.3 7.8 -7.5 14.3  
SINCE JUL 1 13.6 25.2 -11.6 32.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 25 41 -16 92  
MONTH TO DATE 670 877 -207 976  
SINCE DEC 1 670 877 -207 976  
SINCE JUL 1 2335 2679 -344 2791  
 
COOLING  
TODAY 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 24 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 16.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78  
LOWEST 46  
AVERAGE 62  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 34 53 1994  
MINIMUM TEMPERATURE (F) 14 -39 1983  
 
SUNRISE AND SUNSET  
DECEMBER 22 2023......SUNRISE 7:34 AM MST SUNSET 4:35 PM MST  
DECEMBER 23 2023......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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