415  
CDUS45 KMSO 220737  
CLIMSO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
137 AM MDT FRI SEP 22 2023  
   
...............................
 
 
   
..THE MISSOULA MT CLIMATE SUMMARY FOR SEPTEMBER 21 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 55 403 PM 92 1967 70 -15 77  
MINIMUM 48 838 AM 23 1971 41 7 51  
AVERAGE 52 56 -4 64  
 
PRECIPITATION (IN)  
YESTERDAY 0.04 0.35 1945 0.03 0.01 T  
MONTH TO DATE 0.63 0.68 -0.05 0.24  
SINCE OCT 1 13.43 13.83 -0.40 10.17  
SINCE JAN 1 10.57 10.39 0.18 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 13 10 3 1  
MONTH TO DATE 49 135 -86 68  
SINCE SEP 1 49 135 -86 68  
SINCE JUL 1 55 221 -166 71  
 
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 18 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 5.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 900 PM  
LOWEST 52 1200 AM  
AVERAGE 71  
   
......................................................
 
 
THE MISSOULA MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 91 1938  
MINIMUM TEMPERATURE (F) 41 25 1893  
1895  
1993  
 
SUNRISE AND SUNSET  
SEPTEMBER 22 2023.....SUNRISE 723 AM MDT SUNSET 734 PM MDT  
SEPTEMBER 23 2023.....SUNRISE 724 AM MDT SUNSET 732 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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