702  
CDUS45 KRIW 200730  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1230 AM MST FRI DEC 20 2024  
   
...............................  
 
   
..THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 19 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 49 2:51 PM 62 1917 32 17 39  
MINIMUM 25 11:59 PM -40 1924 9 16 19  
AVERAGE 37 20 17  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.34 1892 0.02 -0.02 0.00  
MONTH TO DATE 0.00 0.40 -0.40 0.03  
SINCE DEC 1 0.00 0.40 -0.40 0.03  
SINCE JAN 1 9.19 13.00 -3.81 16.14  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.7 2013 0.3 -0.3 0.0  
MONTH TO DATE 0.0 5.9 -5.9 0.1  
SINCE DEC 1 0.0 5.9 -5.9 0.1  
SINCE JUL 1 10.3 28.5 -18.2 24.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 28 44 -16 36  
MONTH TO DATE 610 809 -199 727  
SINCE DEC 1 610 809 -199 727  
SINCE JUL 1 2039 2637 -598 2335  
 
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 (240)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 3.9  
 
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 55 4:00 AM  
LOWEST 22 3:00 PM  
AVERAGE 39  
   
......................................................  
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 32 55 1917  
MINIMUM TEMPERATURE (F) 9 -37 1924  
 
SUNRISE AND SUNSET  
DECEMBER 20 2024......SUNRISE 7:42 AM MST SUNSET 4:44 PM MST  
DECEMBER 21 2024......SUNRISE 7:43 AM MST SUNSET 4:44 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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