822  
CDUS45 KRIW 130058  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
558 PM MST TUE DEC 12 2023  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 12 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 33 2:52 PM 60 2014 35 -2 40  
MINIMUM 27 4:59 PM -14 2000 15 12 13  
AVERAGE 30 25 5 27  
 
PRECIPITATION (IN)  
TODAY 0.00 0.26 1940 0.02 -0.02 0.02  
1992  
MONTH TO DATE 0.02 0.24 -0.22 0.17  
SINCE DEC 1 0.02 0.24 -0.22 0.17  
SINCE JAN 1 15.37 11.85 3.52 12.79  
 
SNOWFALL (IN)  
TODAY 0.0 0.3 -0.3 0.5  
MONTH TO DATE 0.3 4.2 -3.9 3.0  
SINCE DEC 1 0.3 4.2 -3.9 3.0  
SINCE JUL 1 13.6 21.6 -8.0 20.9  
SNOW DEPTH T  
 
DEGREE DAYS  
HEATING  
TODAY 35 40 -5 38  
MONTH TO DATE 386 468 -82 417  
SINCE DEC 1 386 468 -82 417  
SINCE JUL 1 2051 2270 -219 2232  
 
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 13 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 5.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100  
LOWEST 81  
AVERAGE 91  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 34 57 2014  
MINIMUM TEMPERATURE (F) 15 -16 1967  
 
SUNRISE AND SUNSET  
DECEMBER 12 2023......SUNRISE 7:27 AM MST SUNSET 4:32 PM MST  
DECEMBER 13 2023......SUNRISE 7:28 AM MST SUNSET 4:32 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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