220  
CDUS45 KRIW 220747  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1247 AM MST SUN DEC 22 2024  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 21 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 48 4:12 PM 61 1969 32 16 47  
MINIMUM 27 10:35 PM -35 1990 9 18 24  
AVERAGE 38 20 18  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.68 2011 0.02 -0.02 0.00  
MONTH TO DATE 0.00 0.44 -0.44 0.03  
SINCE DEC 1 0.00 0.44 -0.44 0.03  
SINCE JAN 1 9.19 13.04 -3.85 16.14  
 
SNOWFALL (IN)  
YESTERDAY 0.0 8.4 2011 0.3 -0.3 0.0  
MONTH TO DATE 0.0 6.4 -6.4 0.1  
SINCE DEC 1 0.0 6.4 -6.4 0.1  
SINCE JUL 1 10.3 29.0 -18.7 24.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 27 45 -18 29  
MONTH TO DATE 663 899 -236 787  
SINCE DEC 1 663 899 -236 787  
SINCE JUL 1 2092 2727 -635 2395  
 
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 13 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 3.0  
 
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 61 8:00 AM  
LOWEST 31 4:00 PM  
AVERAGE 46  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 32 58 1917  
MINIMUM TEMPERATURE (F) 9 -35 1990  
 
SUNRISE AND SUNSET  
DECEMBER 22 2024......SUNRISE 7:43 AM MST SUNSET 4:45 PM MST  
DECEMBER 23 2024......SUNRISE 7:43 AM MST SUNSET 4:45 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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