823  
CDUS45 KRIW 130058  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
558 PM MST TUE DEC 12 2023  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 12 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1891 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 32 2:43 PM 57 1924 33 -1 32  
1929  
1995  
MINIMUM 24 1:30 AM -28 1932 10 14 17  
AVERAGE 28 22 6 25  
 
PRECIPITATION (IN)  
TODAY T 0.55 1926 0.02 -0.02 0.49  
MONTH TO DATE 0.03 0.27 -0.24 0.49  
SINCE DEC 1 0.03 0.27 -0.24 0.49  
SINCE JAN 1 17.04 12.87 4.17 13.09  
 
SNOWFALL (IN)  
TODAY 0.0 0.3 -0.3 5.4  
MONTH TO DATE 0.1 3.9 -3.8 5.4  
SINCE DEC 1 0.1 3.9 -3.8 5.4  
SINCE JUL 1 24.3 26.5 -2.2 19.6  
SNOW DEPTH 2  
 
DEGREE DAYS  
HEATING  
TODAY 37 43 -6 40  
MONTH TO DATE 441 501 -60 509  
SINCE DEC 1 441 501 -60 509  
SINCE JUL 1 2049 2329 -280 2256  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 361 485 -124 720    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 3.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92  
LOWEST 78  
AVERAGE 85  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 33 60 1921  
MINIMUM TEMPERATURE (F) 10 -23 1926  
1932  
 
SUNRISE AND SUNSET  
DECEMBER 12 2023......SUNRISE 7:36 AM MST SUNSET 4:41 PM MST  
DECEMBER 13 2023......SUNRISE 7:37 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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