452  
CDUS45 KRIW 190802  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
102 AM MST TUE DEC 19 2023  
   
...............................  
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR DECEMBER 18 2023  
 
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)  
YESTERDAY  
MAXIMUM 30 3:24 PM 59 2013 30 0 11  
MINIMUM 14 7:00 AM -18 2016 7 7 -11  
AVERAGE 22 19 3 0  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.05 0.00 0.00 0.00  
MONTH TO DATE T 0.15 -0.15 0.50  
SINCE DEC 1 T 0.15 -0.15 0.50  
SINCE JAN 1 14.12 8.45 5.67 9.27  
 
SNOWFALL (IN)  
YESTERDAY 0.0 2.5 2002 0.0  
MONTH TO DATE T 8.8  
SINCE DEC 1 T 8.8  
SINCE JUL 1 19.0 19.7  
SNOW DEPTH T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 43 46 -3 65  
MONTH TO DATE 703 799 -96 877  
SINCE DEC 1 703 799 -96 877  
SINCE JUL 1 2402 2696 -294 2690  
 
COOLING  
YESTERDAY 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 (310)  
HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 2.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 8:00 AM  
LOWEST 66 9:00 PM  
AVERAGE 77  
   
......................................................  
 
THE RIVERTON WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 44 2004  
MINIMUM TEMPERATURE (F) 7 -13 1998  
 
SUNRISE AND SUNSET  
DECEMBER 19 2023......SUNRISE 7:41 AM MST SUNSET 4:41 PM MST  
DECEMBER 20 2023......SUNRISE 7:41 AM MST SUNSET 4:41 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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