525  
CDUS45 KMSO 210737  
CLIMSO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
137 AM MDT THU SEP 21 2023  
   
...............................
 
 
   
..THE MISSOULA MT CLIMATE SUMMARY FOR SEPTEMBER 20 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 67 316 PM 91 1938 71 -4 67  
MINIMUM 38 540 AM 24 1983 41 -3 44  
AVERAGE 53 56 -3 56  
 
PRECIPITATION (IN)  
YESTERDAY T 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)  
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 12 9 3 9  
MONTH TO DATE 36 125 -89 67  
SINCE SEP 1 36 125 -89 67  
SINCE JUL 1 42 211 -169 70  
 
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 23 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 5.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79 800 AM  
LOWEST 34 300 PM  
AVERAGE 57  
   
......................................................
 
 
THE MISSOULA MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 92 1967  
MINIMUM TEMPERATURE (F) 41 23 1971  
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2023.....SUNRISE 722 AM MDT SUNSET 736 PM MDT  
SEPTEMBER 22 2023.....SUNRISE 723 AM MDT SUNSET 734 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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