609  
CDUS45 KRIW 270726  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
126 AM MDT WED SEP 27 2023  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 26 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1891 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 83 3:24 PM 90 2015 69 14 77  
MINIMUM 45 5:17 AM 21 1934 41 4 45  
AVERAGE 64 55 9  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.25 2013 0.05 -0.05 0.00  
MONTH TO DATE 0.56 0.80 -0.24 0.95  
SINCE SEP 1 0.56 0.80 -0.24 0.95  
SINCE JAN 1 13.78 10.24 3.54 10.67  
 
SNOWFALL (IN)  
YESTERDAY 0.0 2.1 2013 0.1 -0.1 0.0  
MONTH TO DATE 0.0 1.0 -1.0 0.0  
SINCE SEP 1 0.0 1.0 -1.0 0.0  
SINCE JUL 1 0.0 1.0 -1.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 1 10 -9 4  
MONTH TO DATE 84 148 -64 100  
SINCE SEP 1 84 148 -64 100  
SINCE JUL 1 130 187 -57 101  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 29 31 -2 102  
SINCE SEP 1 29 31 -2 102  
SINCE JAN 1 361 483 -122 720    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 6.1  
 
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 44 8:00 AM  
LOWEST 12 3:00 PM  
AVERAGE 28  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 87 2001  
MINIMUM TEMPERATURE (F) 40 19 1908  
 
SUNRISE AND SUNSET  
SEPTEMBER 27 2023.....SUNRISE 7:08 AM MDT SUNSET 7:03 PM MDT  
SEPTEMBER 28 2023.....SUNRISE 7:09 AM MDT SUNSET 7:02 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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