112  
CDUS45 KRIW 100734  
CLIWRL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
134 AM MDT SUN SEP 10 2023  
   
...............................
 
 
   
..THE WORLAND WY CLIMATE SUMMARY FOR SEPTEMBER 9 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1947 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 78 1:56 PM 97 1998 80 -2 54  
2021  
MINIMUM 51 6:03 AM 28 2020 45 6 43  
AVERAGE 65 62 3  
 
PRECIPITATION (IN)  
YESTERDAY T 0.49 1989 0.03 -0.03 0.11  
MONTH TO DATE 1.40 0.21 1.19 0.63  
SINCE SEP 1 1.40 0.21 1.19 0.63  
SINCE JAN 1 7.23 5.69 1.54 4.92  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 4 -4 16  
MONTH TO DATE 9 31 -22 16  
SINCE SEP 1 9 31 -22 16  
SINCE JUL 1 24 69 -45 21  
 
COOLING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 23 20 3 74  
SINCE SEP 1 23 20 3 74  
SINCE JAN 1 440 517 -77 689    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 4.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 6:00 AM  
LOWEST 37 2:00 PM  
AVERAGE 63  
   
......................................................
 
 
THE WORLAND WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 93 2021  
MINIMUM TEMPERATURE (F) 44 32 2020  
 
SUNRISE AND SUNSET  
SEPTEMBER 10 2023.....SUNRISE 6:45 AM MDT SUNSET 7:32 PM MDT  
SEPTEMBER 11 2023.....SUNRISE 6:46 AM MDT SUNSET 7:30 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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