240  
CDUS45 KRIW 100047  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
547 PM MST SAT DEC 09 2023  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 9 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 31 3:55 PM 64 1939 34 -3 36  
1975  
MINIMUM 20 8:34 AM -36 1919 11 9 6  
AVERAGE 26 22 4 21  
 
PRECIPITATION (IN)  
TODAY 0.00 0.68 1997 0.02 -0.02 0.00  
MONTH TO DATE 0.03 0.20 -0.17 T  
SINCE DEC 1 0.03 0.20 -0.17 T  
SINCE JAN 1 17.04 12.80 4.24 12.60  
 
SNOWFALL (IN)  
TODAY 0.0 0.3 -0.3 0.0  
MONTH TO DATE 0.1 2.9 -2.8 0.0  
SINCE DEC 1 0.1 2.9 -2.8 0.0  
SINCE JUL 1 24.3 25.5 -1.2 14.2  
SNOW DEPTH 3  
 
DEGREE DAYS  
HEATING  
TODAY 39 43 -4 44  
MONTH TO DATE 325 372 -47 387  
SINCE DEC 1 325 372 -47 387  
SINCE JUL 1 1933 2200 -267 2134  
 
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 12 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 5.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88  
LOWEST 31  
AVERAGE 60  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 33 65 1933  
MINIMUM TEMPERATURE (F) 11 -24 1932  
1972  
 
SUNRISE AND SUNSET  
DECEMBER 9 2023......SUNRISE 7:34 AM MST SUNSET 4:41 PM MST  
DECEMBER 10 2023......SUNRISE 7:35 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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