674  
CDUS45 KMSO 312332  
CLIMSO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
432 PM MST SUN DEC 31 2023  
   
...............................  
 
   
..THE MISSOULA MT CLIMATE SUMMARY FOR DECEMBER 31 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 38 200 PM 52 1917 30 8 38  
1938  
MINIMUM 22 253 AM -25 1927 17 5 28  
AVERAGE 30 23 7 33  
 
PRECIPITATION (IN)  
TODAY 0.00 0.37 1939 0.04 -0.04 0.05  
MONTH TO DATE 0.51 1.08 -0.57 1.50  
SINCE OCT 1 2.21 3.44 -1.23 2.86  
SINCE JAN 1 13.83 14.11 -0.28 10.96  
 
SNOWFALL (IN)  
TODAY 0.0  
MONTH TO DATE 5.5  
SINCE DEC 1 5.5  
SINCE JUL 1 8.6  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 35 42 -7 32  
MONTH TO DATE 1096 1262 -166 1311  
SINCE DEC 1 1096 1262 -166 1311  
SINCE JUL 1 2711 3219 -508 3097  
 
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 7 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 1.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 300 AM  
LOWEST 64 200 PM  
AVERAGE 80  
   
......................................................  
 
THE MISSOULA MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 60 1939  
MINIMUM TEMPERATURE (F) 17 -28 1979  
 
SUNRISE AND SUNSET  
DECEMBER 31 2023......SUNRISE 822 AM MST SUNSET 457 PM MST  
JANUARY 1 2024.......SUNRISE 822 AM MST SUNSET 458 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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