887  
CDUS45 KRIW 110726  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
126 AM MDT SUN MAY 11 2025  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR MAY 10 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 81 3:54 PM 84 1961 64 17 60  
MINIMUM 48 5:45 AM 20 1894 37 11 41  
AVERAGE 65 51 14  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.39 1933 0.09 -0.09 0.01  
MONTH TO DATE 0.78 0.88 -0.10 0.94  
SINCE MAR 1 6.38 4.24 2.14 3.51  
SINCE JAN 1 7.46 5.45 2.01 5.42  
 
SNOWFALL (IN)  
YESTERDAY 0.0 5.0 1982 0.2 -0.2 0.0  
1983  
MONTH TO DATE 2.1 2.7 -0.6 1.3  
SINCE MAR 1 47.4 33.5 13.9 20.7  
SINCE JUL 1 77.7 85.7 -8.0 70.6  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 14 -14 14  
MONTH TO DATE 84 162 -78 201  
SINCE MAR 1 1543 1713 -170 1623  
SINCE JUL 1 6572 7364 -792 6931  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 5.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 54 6:00 AM  
LOWEST 14 5:00 PM  
AVERAGE 34  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 84 1940  
MINIMUM TEMPERATURE (F) 38 19 1946  
 
SUNRISE AND SUNSET  
MAY 11 2025...........SUNRISE 5:56 AM MDT SUNSET 8:27 PM MDT  
MAY 12 2025...........SUNRISE 5:55 AM MDT SUNSET 8:28 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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