670  
CDUS45 KRIW 110043  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
643 PM MDT SUN SEP 10 2023  
   
...............................
 
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR SEPTEMBER 10 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 72 2:53 PM 90 2021 77 -5 64  
MINIMUM 50 6:24 AM 31 2007 47 3 36  
AVERAGE 61 62 -1 50  
 
PRECIPITATION (IN)  
TODAY T 0.23 2008 0.03 -0.03 0.00  
MONTH TO DATE 0.15 0.18 -0.03 0.10  
SINCE SEP 1 0.15 0.18 -0.03 0.10  
SINCE JAN 1 10.31 6.54 3.77 6.50  
 
SNOWFALL (IN)  
TODAY 0.0 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  
TODAY 4 5 -1 15  
MONTH TO DATE 18 36 -18 30  
SINCE SEP 1 18 36 -18 30  
SINCE JUL 1 51 72 -21 31  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 26 20 6 90  
SINCE SEP 1 26 20 6 90  
SINCE JAN 1 397 488 -91 697    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 5.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 74  
LOWEST 35  
AVERAGE 55  
   
......................................................
 
 
THE RIVERTON WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 87 2004  
2017  
2018  
MINIMUM TEMPERATURE (F) 46 30 2014  
 
SUNRISE AND SUNSET  
SEPTEMBER 10 2023.....SUNRISE 6:48 AM MDT SUNSET 7:33 PM MDT  
SEPTEMBER 11 2023.....SUNRISE 6:49 AM MDT SUNSET 7:31 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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