933  
CDUS45 KMSO 190841  
CLIMSO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
141 AM MST TUE DEC 19 2023  
   
...............................  
 
   
..THE MISSOULA MT CLIMATE SUMMARY FOR DECEMBER 18 2023  
 
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)  
YESTERDAY  
MAXIMUM 32 1053 PM 50 1917 30 2 33  
MINIMUM 14 437 AM -18 1924 17 -3 12  
1964  
AVERAGE 23 24 -1 23  
 
PRECIPITATION (IN)  
YESTERDAY T 0.28 2015 0.03 -0.03 T  
MONTH TO DATE 0.47 0.61 -0.14 0.73  
SINCE OCT 1 2.17 2.97 -0.80 2.09  
SINCE JAN 1 13.79 13.64 0.15 10.19  
 
SNOWFALL (IN)  
YESTERDAY T  
MONTH TO DATE 5.4  
SINCE DEC 1 5.4  
SINCE JUL 1 8.5  
SNOW DEPTH T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 42 41 1 42  
MONTH TO DATE 618 716 -98 765  
SINCE DEC 1 618 716 -98 765  
SINCE JUL 1 2233 2673 -440 2551  
 
COOLING  
YESTERDAY 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 N (10)  
HIGHEST GUST SPEED 8 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 0.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LT FREEZING RAIN  
SLEET  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1100 AM  
LOWEST 81 1100 PM  
AVERAGE 91  
   
......................................................  
 
THE MISSOULA MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 56 1917  
1936  
MINIMUM TEMPERATURE (F) 17 -19 1924  
 
SUNRISE AND SUNSET  
DECEMBER 19 2023......SUNRISE 818 AM MST SUNSET 449 PM MST  
DECEMBER 20 2023......SUNRISE 818 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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