929  
CDUS45 KRIW 120053  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
553 PM MST MON DEC 11 2023  
   
...............................  
 
   
..THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 11 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 35 11:38 AM 65 1937 33 2 46  
MINIMUM 16 5:34 AM -26 1972 11 5 13  
AVERAGE 26 22 4 30  
 
PRECIPITATION (IN)  
TODAY 0.00 0.90 1901 0.03 -0.03 0.00  
MONTH TO DATE 0.03 0.25 -0.22 T  
SINCE DEC 1 0.03 0.25 -0.22 T  
SINCE JAN 1 17.04 12.85 4.19 12.60  
 
SNOWFALL (IN)  
TODAY 0.0 0.3 -0.3 0.0  
MONTH TO DATE 0.1 3.6 -3.5 0.0  
SINCE DEC 1 0.1 3.6 -3.5 0.0  
SINCE JUL 1 24.3 26.2 -1.9 14.2  
SNOW DEPTH 1  
 
DEGREE DAYS  
HEATING  
TODAY 39 43 -4 35  
MONTH TO DATE 404 458 -54 469  
SINCE DEC 1 404 458 -54 469  
SINCE JUL 1 2012 2286 -274 2216  
 
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 13 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 3.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 81  
LOWEST 63  
AVERAGE 72  
   
......................................................  
 
THE LANDER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 33 57 1924  
1929  
1995  
MINIMUM TEMPERATURE (F) 10 -28 1932  
 
SUNRISE AND SUNSET  
DECEMBER 11 2023......SUNRISE 7:35 AM MST SUNSET 4:41 PM MST  
DECEMBER 12 2023......SUNRISE 7:36 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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