093  
CDUS45 KRIW 240045  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
645 PM MDT TUE SEP 23 2025  
   
...............................  
 
   
..THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 23 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 65 3:10 PM 89 1905 71 -6 78  
MINIMUM 47 5:32 AM 19 1895 42 5 42  
AVERAGE 56 56 0 60  
 
PRECIPITATION (IN)  
TODAY T 0.42 1891 0.04 -0.04 0.00  
MONTH TO DATE 1.15 0.66 0.49 0.40  
SINCE SEP 1 1.15 0.66 0.49 0.40  
SINCE JAN 1 11.16 10.10 1.06 7.42  
 
SNOWFALL (IN)  
TODAY MM 0.0 MM 0.0  
MONTH TO DATE 0.0 0.7 -0.7 0.0  
SINCE SEP 1 0.0 0.7 -0.7 0.0  
SINCE JUL 1 0.0 0.7 -0.7 0.0  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 9 9 0 5  
MONTH TO DATE 85 119 -34 74  
SINCE SEP 1 85 119 -34 74  
SINCE JUL 1 90 158 -68 92  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 42 31 11 60  
SINCE SEP 1 42 31 11 60  
SINCE JAN 1 569 483 86 621    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 3.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83  
LOWEST 44  
AVERAGE 64  
   
......................................................  
 
THE LANDER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 87 2014  
2020  
MINIMUM TEMPERATURE (F) 41 17 2000  
 
SUNRISE AND SUNSET  
SEPTEMBER 23 2025.....SUNRISE 7:04 AM MDT SUNSET 7:10 PM MDT  
SEPTEMBER 24 2025.....SUNRISE 7:05 AM MDT SUNSET 7:08 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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