182  
CDUS45 KRIW 200729  
CLIBPI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
129 AM MDT THU AUG 20 2026  
   
...............................  
 
   
..THE BIG PINEY WY CLIMATE SUMMARY FOR AUGUST 19 2026  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1976 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 84 3:10 PM 90 2013 79 5 88  
MINIMUM 43 5:51 AM 24 1978 40 3 37  
AVERAGE 64 60 4  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.39 2021 0.03 -0.03 0.00  
MONTH TO DATE 0.58 0.52 0.06 0.13  
SINCE JUN 1 2.76 2.42 0.34 1.45  
SINCE JAN 1 4.13 5.56 -1.43 4.88  
 
DEGREE DAYS  
HEATING  
YESTERDAY 1 6 -5 2  
MONTH TO DATE 46 76 -30 68  
SINCE JUN 1 371 513 -142 343  
SINCE JUL 1 85 188 -103 128  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 24 14 10 10  
SINCE JUN 1 149 32 117 32  
SINCE JAN 1 149 32 117 32    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 7.2  
 
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 96 6:00 AM  
LOWEST 13 1:00 PM  
AVERAGE 55  
   
......................................................  
 
THE BIG PINEY WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 92 2025  
MINIMUM TEMPERATURE (F) 40 25 1980  
 
SUNRISE AND SUNSET  
AUGUST 20 2026........SUNRISE 6:33 AM MDT SUNSET 8:14 PM MDT  
AUGUST 21 2026........SUNRISE 6:34 AM MDT SUNSET 8:12 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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