289  
CDUS45 KRIW 100733  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1233 AM MST TUE DEC 10 2024  
   
...............................  
 
   
..THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 9 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 33 2:24 PM 64 1939 34 -1 31  
1975  
MINIMUM 14 10:21 PM -36 1919 11 3 15  
AVERAGE 24 22 2  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.68 1997 0.02 -0.02 0.00  
MONTH TO DATE 0.00 0.20 -0.20 0.03  
SINCE DEC 1 0.00 0.20 -0.20 0.03  
SINCE JAN 1 9.19 12.80 -3.61 16.14  
 
SNOWFALL (IN)  
YESTERDAY 0.0 10.2 1985 0.3 -0.3 0.0  
MONTH TO DATE 0.0 2.9 -2.9 0.1  
SINCE DEC 1 0.0 2.9 -2.9 0.1  
SINCE JUL 1 10.3 25.5 -15.2 24.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 41 43 -2 42  
MONTH TO DATE 268 372 -104 328  
SINCE DEC 1 268 372 -104 328  
SINCE JUL 1 1697 2200 -503 1936  
 
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 E (90)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 5.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 76 11:00 PM  
LOWEST 41 2:00 PM  
AVERAGE 59  
   
......................................................  
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 33 65 1933  
MINIMUM TEMPERATURE (F) 11 -24 1932  
1972  
 
SUNRISE AND SUNSET  
DECEMBER 10 2024......SUNRISE 7:35 AM MST SUNSET 4:41 PM MST  
DECEMBER 11 2024......SUNRISE 7:36 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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