883  
CDUS45 KRIW 190729  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
129 AM MDT TUE SEP 19 2023  
   
...............................
 
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR SEPTEMBER 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 81 3:26 PM 90 2014 73 8 79  
MINIMUM 50 5:43 AM 28 2003 44 6 45  
AVERAGE 66 58 8 62  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.26 0.03 -0.03 0.06  
MONTH TO DATE 0.67 0.37 0.30 0.95  
SINCE SEP 1 0.67 0.37 0.30 0.95  
SINCE JAN 1 10.83 6.73 4.10 7.35  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2020 0.0  
MONTH TO DATE 0.0 0.0  
SINCE SEP 1 0.0 0.0  
SINCE JUL 1 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 7 -7 3  
MONTH TO DATE 40 84 -44 65  
SINCE SEP 1 40 84 -44 65  
SINCE JUL 1 73 120 -47 66  
 
COOLING  
YESTERDAY 1 1 0 0  
MONTH TO DATE 28 28 0 92  
SINCE SEP 1 28 28 0 92  
SINCE JAN 1 399 496 -97 699    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 10.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 43 6:00 AM  
LOWEST 14 1:00 PM  
AVERAGE 29  
   
......................................................
 
 
THE RIVERTON WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 90 2010  
MINIMUM TEMPERATURE (F) 43 32 1996  
 
SUNRISE AND SUNSET  
SEPTEMBER 19 2023.....SUNRISE 6:58 AM MDT SUNSET 7:17 PM MDT  
SEPTEMBER 20 2023.....SUNRISE 6:59 AM MDT SUNSET 7:15 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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