892  
CDUS45 KMSO 190738  
CLIMSO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
138 AM MDT TUE SEP 19 2023  
   
...............................
 
 
   
..THE MISSOULA MT CLIMATE SUMMARY FOR SEPTEMBER 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 79 429 PM 92 1938 72 7 76  
MINIMUM 49 342 AM 24 1971 42 7 41  
AVERAGE 64 57 7 59  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.28 1908 0.03 -0.03 T  
MONTH TO DATE 0.59 0.58 0.01 0.24  
SINCE OCT 1 13.39 13.73 -0.34 10.17  
SINCE JAN 1 10.53 10.29 0.24 6.92  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 0.0  
SINCE SEP 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 1 8 -7 6  
MONTH TO DATE 14 107 -93 55  
SINCE SEP 1 14 107 -93 55  
SINCE JUL 1 20 193 -173 58  
 
COOLING  
YESTERDAY 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 25 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 4.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 63 600 AM  
LOWEST 21 600 PM  
AVERAGE 42  
   
......................................................
 
 
THE MISSOULA MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 89 1938  
MINIMUM TEMPERATURE (F) 42 23 1964  
 
SUNRISE AND SUNSET  
SEPTEMBER 19 2023.....SUNRISE 719 AM MDT SUNSET 740 PM MDT  
SEPTEMBER 20 2023.....SUNRISE 720 AM MDT SUNSET 738 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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