059  
CDUS45 KRIW 200028  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
528 PM MST TUE DEC 19 2023  
   
...............................  
 
   
..THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 19 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 55R 2:33 PM 51 2004 34 21 28  
MINIMUM 38 8:00 AM -24 1990 14 24 19  
AVERAGE 47 24 23 24  
 
PRECIPITATION (IN)  
TODAY 0.00 0.50 2013 0.02 -0.02 0.00  
MONTH TO DATE 0.02 0.37 -0.35 0.55  
SINCE DEC 1 0.02 0.37 -0.35 0.55  
SINCE JAN 1 15.37 11.98 3.39 13.17  
 
SNOWFALL (IN)  
TODAY 0.0 0.3 -0.3 0.0  
MONTH TO DATE 0.3 6.7 -6.4 12.2  
SINCE DEC 1 0.3 6.7 -6.4 12.2  
SINCE JUL 1 13.6 24.1 -10.5 30.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 18 41 -23 41  
MONTH TO DATE 598 754 -156 778  
SINCE DEC 1 598 754 -156 778  
SINCE JUL 1 2263 2556 -293 2593  
 
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 26 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 17.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 39  
LOWEST 25  
AVERAGE 32  
   
......................................................  
 
THE CASPER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 34 56 1941  
MINIMUM TEMPERATURE (F) 14 -36 1990  
 
SUNRISE AND SUNSET  
DECEMBER 19 2023......SUNRISE 7:32 AM MST SUNSET 4:33 PM MST  
DECEMBER 20 2023......SUNRISE 7:33 AM MST SUNSET 4:34 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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