081  
CDUS45 KRIW 020045  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
645 PM MDT THU MAY 01 2025  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR MAY 1 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 55 4:38 PM 80 1901 60 -5 55  
1981  
MINIMUM 34 4:14 AM 18 1954 34 0 29  
AVERAGE 45 47 -2 42  
 
PRECIPITATION (IN)  
TODAY T 1.03 1979 0.08 -0.08 0.00  
MONTH TO DATE T 0.08 -0.08 0.00  
SINCE MAR 1 5.60 3.44 2.16 2.57  
SINCE JAN 1 6.68 4.65 2.03 4.48  
 
SNOWFALL (IN)  
TODAY MM 0.3 MM 0.0  
MONTH TO DATE MM 0.3 MM 0.0  
SINCE MAR 1 45.3 31.1 14.2 19.4  
SINCE JUL 1 75.6 83.3 -7.7 69.3  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 20 18 2 23  
MONTH TO DATE 20 18 2 23  
SINCE MAR 1 1479 1569 -90 1445  
SINCE JUL 1 6508 7220 -712 6753  
 
COOLING  
TODAY 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 15 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 6.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89  
LOWEST 40  
AVERAGE 65  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 61 84 1947  
MINIMUM TEMPERATURE (F) 35 13 1903  
 
SUNRISE AND SUNSET  
MAY 1 2025...........SUNRISE 6:09 AM MDT SUNSET 8:16 PM MDT  
MAY 2 2025...........SUNRISE 6:07 AM MDT SUNSET 8:17 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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