948  
CDUS45 KRIW 120729  
CLILND  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
129 AM MDT THU OCT 12 2023  
   
...............................
 
 
   
..THE LANDER WY CLIMATE SUMMARY FOR OCTOBER 11 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 60 10:52 AM 81 1991 61 -1 64  
1996  
MINIMUM 39 10:58 PM 12 2009 34 5 41  
AVERAGE 50 48 2  
 
PRECIPITATION (IN)  
YESTERDAY 0.87 1.98 1928 0.05 0.82 0.00  
MONTH TO DATE 1.03 0.56 0.47 0.27  
SINCE SEP 1 1.59 1.54 0.05 1.77  
SINCE JAN 1 14.81 10.98 3.83 11.49  
 
SNOWFALL (IN)  
YESTERDAY 0.0 14.5 2008 0.4 -0.4 0.0  
MONTH TO DATE 0.0 3.1 -3.1 0.0  
SINCE SEP 1 0.0 4.6 -4.6 0.0  
SINCE JUL 1 0.0 4.6 -4.6 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 15 18 -3 12  
MONTH TO DATE 122 167 -45 131  
SINCE SEP 1 218 362 -144 238  
SINCE JUL 1 264 401 -137 239  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 29 32 -3 102  
SINCE JAN 1 361 484 -123 720    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 7.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 5:00 PM  
LOWEST 39 11:00 AM  
AVERAGE 66  
   
......................................................
 
 
THE LANDER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 61 79 1918  
1950  
1996  
MINIMUM TEMPERATURE (F) 34 12 1969  
 
SUNRISE AND SUNSET  
OCTOBER 12 2023.......SUNRISE 7:25 AM MDT SUNSET 6:38 PM MDT  
OCTOBER 13 2023.......SUNRISE 7:26 AM MDT SUNSET 6:36 PM MDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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