149  
CDUS45 KRIW 250733  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
133 AM MDT SUN MAY 25 2025  
   
...............................  
 
   
..THE LANDER WY CLIMATE SUMMARY FOR MAY 24 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 66 1:08 PM 85 1985 69 -3 66  
MINIMUM 46 11:59 PM 28 2024 42 4 28  
AVERAGE 56 56 0  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 1.98 1898 0.08 -0.07 0.00  
MONTH TO DATE 1.80 2.14 -0.34 1.37  
SINCE MAR 1 7.40 5.50 1.90 3.94  
SINCE JAN 1 8.48 6.71 1.77 5.85  
 
SNOWFALL (IN)  
YESTERDAY MM 0.6 1950 0.1 MM 0.0  
MONTH TO DATE 3.4 4.2 -0.8 1.6  
SINCE MAR 1 48.7 35.0 13.7 21.0  
SINCE JUL 1 79.0 87.2 -8.2 70.9  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 10 -1 18  
MONTH TO DATE 289 327 -38 368  
SINCE MAR 1 1748 1878 -130 1790  
SINCE JUL 1 6777 7529 -752 7098  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 4 0 4 0  
SINCE MAR 1 4 0 4 0  
SINCE JAN 1 4 0 4 0    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 7.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 6:00 AM  
LOWEST 43 1:00 PM  
AVERAGE 62  
   
......................................................  
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 86 1969  
2006  
MINIMUM TEMPERATURE (F) 42 27 1893  
 
SUNRISE AND SUNSET  
MAY 25 2025...........SUNRISE 5:43 AM MDT SUNSET 8:41 PM MDT  
MAY 26 2025...........SUNRISE 5:42 AM MDT SUNSET 8:42 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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