795  
CDUS45 KRIW 130058  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
558 PM MST TUE DEC 12 2023  
   
...............................
 
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR DECEMBER 12 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1995 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 32 3:22 PM 53 1995 31 1 33  
MINIMUM 21 4:53 AM -10 2007 9 12 16  
AVERAGE 27 20 7 25  
 
PRECIPITATION (IN)  
TODAY 0.00 0.30 2022 0.01 -0.01 0.30  
MONTH TO DATE T 0.11 -0.11 0.30  
SINCE DEC 1 T 0.11 -0.11 0.30  
SINCE JAN 1 14.12 8.41 5.71 9.07  
 
SNOWFALL (IN)  
TODAY 0.0 3.5  
MONTH TO DATE T 3.5  
SINCE DEC 1 T 3.5  
SINCE JUL 1 19.0 14.4  
SNOW DEPTH T  
 
DEGREE DAYS  
HEATING  
TODAY 38 45 -7 40  
MONTH TO DATE 444 523 -79 530  
SINCE DEC 1 444 523 -79 530  
SINCE JUL 1 2143 2420 -277 2343  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 401 499 -98 703    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 4.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96  
LOWEST 78  
AVERAGE 87  
   
......................................................
 
 
THE RIVERTON WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 31 55 2010  
MINIMUM TEMPERATURE (F) 8 -7 2000  
 
SUNRISE AND SUNSET  
DECEMBER 12 2023......SUNRISE 7:36 AM MST SUNSET 4:39 PM MST  
DECEMBER 13 2023......SUNRISE 7:37 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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