906  
CDUS45 KRIW 040726  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
126 AM MDT THU SEP 04 2025  
   
...............................  
 
   
..THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 3 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 88 4:34 PM 95 2022 81 7 85  
MINIMUM 56 5:59 AM 29 1961 49 7 56  
AVERAGE 72 65 7  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.52 1915 0.02 -0.02 0.26  
MONTH TO DATE 0.00 0.05 -0.05 0.26  
SINCE SEP 1 0.00 0.05 -0.05 0.26  
SINCE JAN 1 10.01 9.49 0.52 7.28  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2020 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  
YESTERDAY 0 3 -3 0  
MONTH TO DATE 0 8 -8 0  
SINCE SEP 1 0 8 -8 0  
SINCE JUL 1 5 47 -42 18  
 
COOLING  
YESTERDAY 7 2 5 6  
MONTH TO DATE 17 8 9 25  
SINCE SEP 1 17 8 9 25  
SINCE JAN 1 544 460 84 586    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 6.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 42 6:00 AM  
LOWEST 13 2:00 PM  
AVERAGE 28  
   
......................................................  
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 99 2022  
MINIMUM TEMPERATURE (F) 49 30 1894  
 
SUNRISE AND SUNSET  
SEPTEMBER 4 2025.....SUNRISE 6:43 AM MDT SUNSET 7:44 PM MDT  
SEPTEMBER 5 2025.....SUNRISE 6:44 AM MDT SUNSET 7:42 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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