343  
CDUS45 KRIW 070727  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1227 AM MST THU DEC 07 2023  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 6 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 47 2:09 PM 62 1981 35 12 37  
MINIMUM 27 11:52 PM -26 1972 12 15 11  
AVERAGE 37 23 14  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.22 1927 0.02 -0.02 0.00  
MONTH TO DATE 0.00 0.13 -0.13 T  
SINCE DEC 1 0.00 0.13 -0.13 T  
SINCE JAN 1 17.01 12.73 4.28 12.60  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.1 1971 0.3 -0.3 0.0  
MONTH TO DATE 0.0 1.9 -1.9 0.0  
SINCE DEC 1 0.0 1.9 -1.9 0.0  
SINCE JUL 1 24.2 24.5 -0.3 14.2  
SNOW DEPTH 8  
 
DEGREE DAYS  
HEATING  
YESTERDAY 28 42 -14 41  
MONTH TO DATE 217 245 -28 261  
SINCE DEC 1 217 245 -28 261  
SINCE JUL 1 1825 2073 -248 2008  
 
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 13 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 3.8  
 
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 81 8:00 PM  
LOWEST 53 11:00 AM  
AVERAGE 67  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 34 56 1962  
1981  
MINIMUM TEMPERATURE (F) 12 -23 1927  
 
SUNRISE AND SUNSET  
DECEMBER 7 2023......SUNRISE 7:32 AM MST SUNSET 4:41 PM MST  
DECEMBER 8 2023......SUNRISE 7:33 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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