436  
CDUS45 KRIW 150729  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
129 AM MDT FRI SEP 15 2023  
   
...............................
 
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR SEPTEMBER 14 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 67 2:05 PM 85 2018 75 -8 76  
MINIMUM 50 11:59 PM 33 2003 45 5 53  
AVERAGE 59 60 -1 65  
 
PRECIPITATION (IN)  
YESTERDAY 0.26 0.39 0.02 0.24 0.29  
MONTH TO DATE 0.67 0.27 0.40 0.39  
SINCE SEP 1 0.67 0.27 0.40 0.39  
SINCE JAN 1 10.83 6.63 4.20 6.79  
 
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 6 6 0 0  
MONTH TO DATE 31 58 -27 36  
SINCE SEP 1 31 58 -27 36  
SINCE JUL 1 64 94 -30 37  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 27 24 3 92  
SINCE SEP 1 27 24 3 92  
SINCE JAN 1 398 492 -94 699    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 4.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 1:00 AM  
LOWEST 47 3:00 PM  
AVERAGE 72  
   
......................................................
 
 
THE RIVERTON WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 90 2000  
2018  
MINIMUM TEMPERATURE (F) 45 37 2004  
2014  
 
SUNRISE AND SUNSET  
SEPTEMBER 15 2023.....SUNRISE 6:53 AM MDT SUNSET 7:24 PM MDT  
SEPTEMBER 16 2023.....SUNRISE 6:54 AM MDT SUNSET 7:22 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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