856  
CDUS45 KMSO 202230  
CLIMSO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
430 PM MDT WED SEP 20 2023  
   
...............................
 
 
   
..THE MISSOULA MT CLIMATE SUMMARY FOR SEPTEMBER 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 66 255 PM 91 1938 71 -5 67  
MINIMUM 38 540 AM 24 1983 41 -3 44  
AVERAGE 52 56 -4 56  
 
PRECIPITATION (IN)  
TODAY 0.00 0.56 1984 0.03 -0.03 0.00  
MONTH TO DATE 0.59 0.65 -0.06 0.24  
SINCE OCT 1 13.39 13.80 -0.41 10.17  
SINCE JAN 1 10.53 10.36 0.17 6.92  
 
SNOWFALL (IN)  
TODAY 0.0  
MONTH TO DATE 0.0  
SINCE SEP 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 13 9 4 9  
MONTH TO DATE 37 125 -88 67  
SINCE SEP 1 37 125 -88 67  
SINCE JUL 1 43 211 -168 70  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 11 11 0 49  
SINCE SEP 1 11 11 0 49  
SINCE JAN 1 536 303 233 609    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 1.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79 800 AM  
LOWEST 34 300 PM  
AVERAGE 57  
   
......................................................
 
 
THE MISSOULA MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 92 1967  
MINIMUM TEMPERATURE (F) 41 23 1971  
 
SUNRISE AND SUNSET  
SEPTEMBER 20 2023.....SUNRISE 720 AM MDT SUNSET 738 PM MDT  
SEPTEMBER 21 2023.....SUNRISE 722 AM MDT SUNSET 736 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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