006  
CDUS45 KRIW 120731  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1231 AM MST THU DEC 12 2024  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 11 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 45 2:06 PM 65 1937 33 12 35  
MINIMUM 16 7:25 AM -26 1972 11 5 16  
AVERAGE 31 22 9  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.90 1901 0.03 -0.03 0.00  
MONTH TO DATE 0.00 0.25 -0.25 0.03  
SINCE DEC 1 0.00 0.25 -0.25 0.03  
SINCE JAN 1 9.19 12.85 -3.66 16.14  
 
SNOWFALL (IN)  
YESTERDAY 0.0 2.5 1949 0.3 -0.3 0.0  
MONTH TO DATE 0.0 3.6 -3.6 0.1  
SINCE DEC 1 0.0 3.6 -3.6 0.1  
SINCE JUL 1 10.3 26.2 -15.9 24.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 34 43 -9 39  
MONTH TO DATE 343 458 -115 404  
SINCE DEC 1 343 458 -115 404  
SINCE JUL 1 1772 2286 -514 2012  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 644 485 159 361    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 4.3  
 
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 64 12:00 AM  
LOWEST 24 2:00 PM  
AVERAGE 44  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 33 57 1924  
1929  
1995  
MINIMUM TEMPERATURE (F) 10 -28 1932  
 
SUNRISE AND SUNSET  
DECEMBER 12 2024......SUNRISE 7:37 AM MST SUNSET 4:41 PM MST  
DECEMBER 13 2024......SUNRISE 7:38 AM MST SUNSET 4:41 PM MST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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