403  
CDUS45 KMSO 202331  
CLIMSO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
431 PM MST WED DEC 20 2023  
   
...............................  
 
   
..THE MISSOULA MT CLIMATE SUMMARY FOR DECEMBER 20 2023  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1893 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 40 250 PM 54 2019 30 10 35  
MINIMUM 30 759 AM -20 1998 17 13 18  
AVERAGE 35 23 12 27  
 
PRECIPITATION (IN)  
TODAY T 0.68 1917 0.04 -0.04 0.10  
MONTH TO DATE 0.47 0.69 -0.22 0.87  
SINCE OCT 1 2.17 3.05 -0.88 2.23  
SINCE JAN 1 13.79 13.72 0.07 10.33  
 
SNOWFALL (IN)  
TODAY 0.0  
MONTH TO DATE 5.4  
SINCE DEC 1 5.4  
SINCE JUL 1 8.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 30 42 -12 38  
MONTH TO DATE 679 800 -121 845  
SINCE DEC 1 679 800 -121 845  
SINCE JUL 1 2294 2757 -463 2631  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 536 307 229 609    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 6 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 8 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 1.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 600 AM  
LOWEST 76 100 PM  
AVERAGE 86  
   
......................................................  
 
THE MISSOULA MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 58 2019  
MINIMUM TEMPERATURE (F) 17 -25 1990  
 
SUNRISE AND SUNSET  
DECEMBER 20 2023......SUNRISE 818 AM MST SUNSET 450 PM MST  
DECEMBER 21 2023......SUNRISE 819 AM MST SUNSET 450 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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