287  
CDUS45 KRIW 170045  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
645 PM MDT WED SEP 16 2026  
   
...............................  
 
   
..THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 16 2026  
 
VALID TODAY AS OF 0600 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1891 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 80 2:18 PM 91 2000 75 5 68  
MINIMUM 46 4:11 AM 23 1965 45 1 38  
AVERAGE 63 60 3 53  
 
PRECIPITATION (IN)  
TODAY 0.03 0.99 1923 0.03 0.00 0.28  
MONTH TO DATE 0.04 0.39 -0.35 0.36  
SINCE SEP 1 0.04 0.39 -0.35 0.36  
SINCE JAN 1 6.40 9.83 -3.43 10.37  
 
SNOWFALL (IN)  
TODAY MM 0.0 MM 0.0  
MONTH TO DATE 0.0 0.3 -0.3 0.0  
SINCE SEP 1 0.0 0.3 -0.3 0.0  
SINCE JUL 1 0.0 0.3 -0.3 0.0  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 2 6 -4 12  
MONTH TO DATE 21 65 -44 45  
SINCE SEP 1 21 65 -44 45  
SINCE JUL 1 24 104 -80 50  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 43 28 15 40  
SINCE SEP 1 43 28 15 40  
SINCE JAN 1 713 480 233 567    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 7.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 72  
LOWEST 31  
AVERAGE 52  
   
......................................................  
 
THE LANDER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 87 1937  
2014  
MINIMUM TEMPERATURE (F) 44 15 1965  
 
SUNRISE AND SUNSET  
SEPTEMBER 16 2026.....SUNRISE 6:56 AM MDT SUNSET 7:23 PM MDT  
SEPTEMBER 17 2026.....SUNRISE 6:57 AM MDT SUNSET 7:21 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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