834  
CDUS45 KRIW 280729  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1229 AM MST THU DEC 28 2023  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 27 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 26 2:53 PM 56 1898 32 -6 51  
MINIMUM 2 8:09 AM -21 1916 9 -7 17  
AVERAGE 14 20 -6  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.26 1900 0.02 -0.02 0.00  
MONTH TO DATE 0.71 0.55 0.16 1.32  
SINCE DEC 1 0.71 0.55 0.16 1.32  
SINCE JAN 1 17.72 13.15 4.57 13.92  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.4 1982 0.3 -0.3 0.0  
MONTH TO DATE 0.1 8.1 -8.0 14.8  
SINCE DEC 1 0.1 8.1 -8.0 14.8  
SINCE JUL 1 24.3 30.7 -6.4 29.0  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 51 45 6 31  
MONTH TO DATE 1062 1169 -107 1341  
SINCE DEC 1 1062 1169 -107 1341  
SINCE JUL 1 2670 2997 -327 3088  
 
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 12 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 3.4  
 
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 73 9:00 PM  
LOWEST 48 1:00 PM  
AVERAGE 61  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 32 58 1945  
MINIMUM TEMPERATURE (F) 9 -17 1894  
1900  
 
SUNRISE AND SUNSET  
DECEMBER 28 2023......SUNRISE 7:45 AM MST SUNSET 4:48 PM MST  
DECEMBER 29 2023......SUNRISE 7:45 AM MST SUNSET 4:49 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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