268  
CDUS45 KRIW 150734  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1234 AM MST FRI DEC 15 2023  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 14 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 25 3:37 PM 61 1924 33 -8 28  
MINIMUM 7 7:43 AM -26 1926 10 -3 8  
AVERAGE 16 21 -5  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.74 2014 0.02 -0.02 0.00  
MONTH TO DATE 0.03 0.31 -0.28 0.76  
SINCE DEC 1 0.03 0.31 -0.28 0.76  
SINCE JAN 1 17.04 12.91 4.13 13.36  
 
SNOWFALL (IN)  
YESTERDAY 0.0 5.2 1988 0.3 -0.3 0.0  
MONTH TO DATE 0.1 4.5 -4.4 7.8  
SINCE DEC 1 0.1 4.5 -4.4 7.8  
SINCE JUL 1 24.3 27.1 -2.8 22.0  
SNOW DEPTH 2  
 
DEGREE DAYS  
HEATING  
YESTERDAY 49 44 5 47  
MONTH TO DATE 538 589 -51 604  
SINCE DEC 1 538 589 -51 604  
SINCE JUL 1 2146 2417 -271 2351  
 
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 10 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 1.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 10:00 AM  
LOWEST 76 4:00 AM  
AVERAGE 88  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 32 60 1980  
MINIMUM TEMPERATURE (F) 10 -22 1926  
 
SUNRISE AND SUNSET  
DECEMBER 15 2023......SUNRISE 7:38 AM MST SUNSET 4:42 PM MST  
DECEMBER 16 2023......SUNRISE 7:39 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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