817  
CDUS45 KRIW 130728  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
128 AM MDT FRI SEP 13 2024  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 12 2024
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1891 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 72 1:05 PM 94 1990 77 -5 81  
MINIMUM 44 10:35 PM 26 1902 46 -2 48  
AVERAGE 58 61 -3  
 
PRECIPITATION (IN)  
YESTERDAY T 0.69 2013 0.03 -0.03 0.00  
MONTH TO DATE 0.36 0.27 0.09 0.49  
SINCE SEP 1 0.36 0.27 0.09 0.49  
SINCE JAN 1 7.38 9.71 -2.33 12.81  
 
SNOWFALL (IN)  
YESTERDAY MM 1.0 1970 0.1 MM 0.0  
MONTH TO DATE 0.0 0.2 -0.2 0.0  
SINCE SEP 1 0.0 0.2 -0.2 0.0  
SINCE JUL 1 0.0 0.2 -0.2 0.0  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 5 2 0  
MONTH TO DATE 11 43 -32 20  
SINCE SEP 1 11 43 -32 20  
SINCE JUL 1 29 82 -53 66  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 57 24 33 24  
SINCE SEP 1 57 24 33 24  
SINCE JAN 1 618 476 142 356    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 41 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 58 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 11.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 74 7:00 AM  
LOWEST 18 2:00 PM  
AVERAGE 46  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 89 2015  
MINIMUM TEMPERATURE (F) 46 25 1914  
 
SUNRISE AND SUNSET  
SEPTEMBER 13 2024.....SUNRISE 6:53 AM MDT SUNSET 7:27 PM MDT  
SEPTEMBER 14 2024.....SUNRISE 6:54 AM MDT SUNSET 7:25 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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