355  
CDUS45 KRIW 120726  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
126 AM MDT TUE AUG 12 2025  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR AUGUST 11 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 86 4:09 PM 98 2018 87 -1 84  
MINIMUM 52 6:34 AM 35 1907 55 -3 47  
AVERAGE 69 71 -2  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.26 1930 0.02 -0.02 0.00  
MONTH TO DATE T 0.22 -0.22 0.31  
SINCE JUN 1 0.98 1.89 -0.91 0.73  
SINCE JAN 1 9.54 9.14 0.40 6.59  
 
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 0 0 0  
MONTH TO DATE 2 0 2 1  
SINCE JUN 1 92 138 -46 42  
SINCE JUL 1 4 14 -10 7  
 
COOLING  
YESTERDAY 4 7 -3 1  
MONTH TO DATE 65 81 -16 87  
SINCE JUN 1 389 354 35 452  
SINCE JAN 1 397 359 38 452    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 5.1  
 
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 47 7:00 AM  
LOWEST 21 2:00 PM  
AVERAGE 34  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 99 1996  
MINIMUM TEMPERATURE (F) 55 39 1907  
 
SUNRISE AND SUNSET  
AUGUST 12 2025........SUNRISE 6:18 AM MDT SUNSET 8:21 PM MDT  
AUGUST 13 2025........SUNRISE 6:19 AM MDT SUNSET 8:19 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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