905  
CDUS45 KRIW 210728  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
128 AM MDT FRI JUL 21 2023  
   
...............................
 
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR JULY 20 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 78 4:56 PM 99 2005 89 -11 94  
MINIMUM 60 10:16 PM 46 1997 57 3 56  
AVERAGE 69 73 -4 75  
 
PRECIPITATION (IN)  
YESTERDAY T 0.07 0.02 -0.02 0.00  
MONTH TO DATE 0.34 0.35 -0.01 0.05  
SINCE JUN 1 4.14 1.29 2.85 0.11  
SINCE JAN 1 8.71 5.75 2.96 5.97  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2020 0.0  
MONTH TO DATE 0.0 0.0  
SINCE JUN 1 T 0.0  
SINCE JUL 1 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 21 6 15 0  
SINCE JUN 1 133 121 12 108  
SINCE JUL 1 21 6 15 0  
 
COOLING  
YESTERDAY 4 8 -4 10  
MONTH TO DATE 107 133 -26 195  
SINCE JUN 1 108 200 -92 274  
SINCE JAN 1 108 208 -100 276    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 8.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 58 11:00 PM  
LOWEST 35 5:00 PM  
AVERAGE 47  
   
......................................................
 
 
THE RIVERTON WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 98 2007  
MINIMUM TEMPERATURE (F) 57 49 2009  
 
SUNRISE AND SUNSET  
JULY 21 2023..........SUNRISE 5:53 AM MDT SUNSET 8:46 PM MDT  
JULY 22 2023..........SUNRISE 5:54 AM MDT SUNSET 8:46 PM MDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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