135  
CDUS45 KRIW 290730  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1230 AM MST FRI DEC 29 2023  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 28 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 23 3:25 PM 58 1945 32 -9 41  
MINIMUM 4 7:44 AM -17 1894 9 -5 16  
1900  
AVERAGE 14 20 -6  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.37 1972 0.02 -0.02 0.00  
MONTH TO DATE 0.71 0.57 0.14 1.32  
SINCE DEC 1 0.71 0.57 0.14 1.32  
SINCE JAN 1 17.72 13.17 4.55 13.92  
 
SNOWFALL (IN)  
YESTERDAY 0.0 5.2 1972 0.3 -0.3 0.0  
MONTH TO DATE 0.1 8.4 -8.3 14.8  
SINCE DEC 1 0.1 8.4 -8.3 14.8  
SINCE JUL 1 24.3 31.0 -6.7 29.0  
SNOW DEPTH 8  
 
DEGREE DAYS  
HEATING  
YESTERDAY 51 45 6 36  
MONTH TO DATE 1113 1214 -101 1377  
SINCE DEC 1 1113 1214 -101 1377  
SINCE JUL 1 2721 3042 -321 3124  
 
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 SW (240)  
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 1.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 10:00 PM  
LOWEST 65 11:00 AM  
AVERAGE 76  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 32 56 1996  
MINIMUM TEMPERATURE (F) 9 -26 1990  
 
SUNRISE AND SUNSET  
DECEMBER 29 2023......SUNRISE 7:45 AM MST SUNSET 4:49 PM MST  
DECEMBER 30 2023......SUNRISE 7:45 AM MST SUNSET 4:50 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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