081  
CDUS45 KRIW 220726  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
126 AM MDT FRI AUG 22 2025  
   
...............................  
 
   
..THE LANDER WY CLIMATE SUMMARY FOR AUGUST 21 2025  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1891 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 91 3:45 PM 98 1960 85 6 93  
MINIMUM 66 4:40 AM 39 1966 53 13 58  
1974  
AVERAGE 79 69 10  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.29 1891 0.01 -0.01 T  
MONTH TO DATE 0.05 0.36 -0.31 0.45  
SINCE JUN 1 1.03 2.03 -1.00 0.87  
SINCE JAN 1 9.59 9.28 0.31 6.73  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2020 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE JUN 1 0.0 0.1 -0.1 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 2 7 -5 1  
SINCE JUN 1 92 145 -53 42  
SINCE JUL 1 4 21 -17 7  
 
COOLING  
YESTERDAY 14 5 9 11  
MONTH TO DATE 168 137 31 159  
SINCE JUN 1 492 410 82 524  
SINCE JAN 1 500 415 85 524    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 9.5  
 
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 41 11:00 PM  
LOWEST 20 4:00 PM  
AVERAGE 31  
   
......................................................  
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 96 2009  
MINIMUM TEMPERATURE (F) 53 31 1904  
 
SUNRISE AND SUNSET  
AUGUST 22 2025........SUNRISE 6:29 AM MDT SUNSET 8:05 PM MDT  
AUGUST 23 2025........SUNRISE 6:30 AM MDT SUNSET 8:04 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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