474  
CDUS45 KRIW 220030  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
630 PM MDT THU SEP 21 2023  
   
...............................
 
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR SEPTEMBER 21 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 74 3:14 PM 84 2001 71 3 65  
MINIMUM 43 4:58 AM 30 2000 43 0 44  
AVERAGE 59 57 2 55  
 
PRECIPITATION (IN)  
TODAY 0.00 0.37 1997 0.03 -0.03 T  
MONTH TO DATE 0.67 0.46 0.21 0.95  
SINCE SEP 1 0.67 0.46 0.21 0.95  
SINCE JAN 1 10.83 6.82 4.01 7.35  
 
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 6 8 -2 10  
MONTH TO DATE 50 108 -58 75  
SINCE SEP 1 50 108 -58 75  
SINCE JUL 1 83 144 -61 76  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 30 28 2 95  
SINCE SEP 1 30 28 2 95  
SINCE JAN 1 401 496 -95 702    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 4.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82  
LOWEST 28  
AVERAGE 55  
   
......................................................
 
 
THE RIVERTON WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 86 2007  
MINIMUM TEMPERATURE (F) 42 25 2000  
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2023.....SUNRISE 7:00 AM MDT SUNSET 7:13 PM MDT  
SEPTEMBER 22 2023.....SUNRISE 7:01 AM MDT SUNSET 7:11 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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