024  
CDUS45 KRIW 020039  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
639 PM MDT MON SEP 01 2025  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 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 87 3:05 PM 98 2022 81 6 91  
MINIMUM 51 6:09 AM 33 1905 50 1 56  
AVERAGE 69 66 3 74  
 
PRECIPITATION (IN)  
TODAY 0.00 1.21 1973 0.02 -0.02 0.00  
MONTH TO DATE 0.00 0.02 -0.02 0.00  
SINCE SEP 1 0.00 0.02 -0.02 0.00  
SINCE JAN 1 10.01 9.46 0.55 7.02  
 
SNOWFALL (IN)  
TODAY 0.0 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 2 -2 0  
MONTH TO DATE 0 2 -2 0  
SINCE SEP 1 0 2 -2 0  
SINCE JUL 1 5 41 -36 18  
 
COOLING  
TODAY 4 3 1 9  
MONTH TO DATE 4 3 1 9  
SINCE SEP 1 4 3 1 9  
SINCE JAN 1 531 455 76 570    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 5.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 56  
LOWEST 15  
AVERAGE 36  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 95 2019  
MINIMUM TEMPERATURE (F) 49 34 1905  
1914  
 
SUNRISE AND SUNSET  
SEPTEMBER 1 2025.....SUNRISE 6:40 AM MDT SUNSET 7:49 PM MDT  
SEPTEMBER 2 2025.....SUNRISE 6:41 AM MDT SUNSET 7:47 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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