407  
CDUS45 KRIW 140744  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1244 AM MST THU DEC 14 2023  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 13 2023
 
 
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)  
YESTERDAY  
MAXIMUM 27 2:14 PM 60 1921 33 -6 20  
MINIMUM 12 11:59 PM -23 1926 10 2 14  
1932  
AVERAGE 20 21 -1  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.44 1916 0.02 -0.02 0.27  
MONTH TO DATE 0.03 0.29 -0.26 0.76  
SINCE DEC 1 0.03 0.29 -0.26 0.76  
SINCE JAN 1 17.04 12.89 4.15 13.36  
 
SNOWFALL (IN)  
YESTERDAY 0.0 6.1 1975 0.3 -0.3 2.4  
MONTH TO DATE 0.1 4.2 -4.1 7.8  
SINCE DEC 1 0.1 4.2 -4.1 7.8  
SINCE JUL 1 24.3 26.8 -2.5 22.0  
SNOW DEPTH 2  
 
DEGREE DAYS  
HEATING  
YESTERDAY 45 44 1 48  
MONTH TO DATE 489 545 -56 557  
SINCE DEC 1 489 545 -56 557  
SINCE JUL 1 2097 2373 -276 2304  
 
COOLING  
YESTERDAY 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 6 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 1.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 9:00 AM  
LOWEST 77 12:00 AM  
AVERAGE 87  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 33 61 1924  
MINIMUM TEMPERATURE (F) 10 -26 1926  
 
SUNRISE AND SUNSET  
DECEMBER 14 2023......SUNRISE 7:38 AM MST SUNSET 4:41 PM MST  
DECEMBER 15 2023......SUNRISE 7:38 AM MST SUNSET 4:42 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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