869  
CDUS45 KRIW 230045  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
645 PM MDT THU MAY 22 2025  
   
...............................  
 
   
..THE LANDER WY CLIMATE SUMMARY FOR MAY 22 2025  
 
VALID TODAY AS OF 0600 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 70 2:28 PM 83 1967 69 1 63  
2006  
MINIMUM 38 5:08 AM 29 2022 42 -4 36  
AVERAGE 54 55 -1 50  
 
PRECIPITATION (IN)  
TODAY T 1.46 1958 0.09 -0.09 0.00  
MONTH TO DATE 1.79 1.97 -0.18 1.37  
SINCE MAR 1 7.39 5.33 2.06 3.94  
SINCE JAN 1 8.47 6.54 1.93 5.85  
 
SNOWFALL (IN)  
TODAY MM 0.0 MM 0.0  
MONTH TO DATE 3.4 4.0 -0.6 1.6  
SINCE MAR 1 48.7 34.8 13.9 21.0  
SINCE JUL 1 79.0 87.0 -8.0 70.9  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 11 10 1 15  
MONTH TO DATE 273 307 -34 330  
SINCE MAR 1 1732 1858 -126 1752  
SINCE JUL 1 6761 7509 -748 7060  
 
COOLING  
TODAY 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 14 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 5.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 73  
LOWEST 33  
AVERAGE 53  
   
......................................................  
 
THE LANDER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 85 1984  
MINIMUM TEMPERATURE (F) 42 26 1916  
 
SUNRISE AND SUNSET  
MAY 22 2025...........SUNRISE 5:45 AM MDT SUNSET 8:38 PM MDT  
MAY 23 2025...........SUNRISE 5:45 AM MDT SUNSET 8:39 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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