898  
CDUS45 KRIW 120738  
CLIRKS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1238 AM MST TUE DEC 12 2023  
   
...............................  
 
   
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR DECEMBER 11 2023  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1948 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 35 3:47 PM 51 2004 30 5 39  
MINIMUM 21 5:29 AM -24 1972 13 8 26  
AVERAGE 28 22 6  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.14 1964 0.01 0.00 0.00  
MONTH TO DATE 0.01 0.11 -0.10 T  
SINCE DEC 1 0.01 0.11 -0.10 T  
SINCE JAN 1 5.25 7.35 -2.10 4.05  
 
DEGREE DAYS  
HEATING  
YESTERDAY 37 43 -6 32  
MONTH TO DATE 393 463 -70 493  
SINCE DEC 1 393 463 -70 493  
SINCE JUL 1 2082 2417 -335 2414  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 323 320 3 537    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 6.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 9:00 PM  
LOWEST 61 12:00 AM  
AVERAGE 81  
   
......................................................  
 
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 51 2004  
MINIMUM TEMPERATURE (F) 13 -12 1972  
 
SUNRISE AND SUNSET  
DECEMBER 12 2023......SUNRISE 7:34 AM MST SUNSET 4:46 PM MST  
DECEMBER 13 2023......SUNRISE 7:34 AM MST SUNSET 4:46 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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