397  
CDUS45 KMSO 210741  
CLIMSO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
141 AM MDT MON AUG 21 2023  
   
...............................
 
 
   
..THE MISSOULA MT CLIMATE SUMMARY FOR AUGUST 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 76 316 PM 99 1940 83 -7 96  
MINIMUM 64 1159 PM 36 1916 49 15 65  
AVERAGE 70 66 4 81  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 0.97 1981 0.03 0.00 T  
MONTH TO DATE 0.35 0.51 -0.16 0.01  
SINCE OCT 1 10.80 12.83 -2.03 9.83  
SINCE JAN 1 7.94 9.39 -1.45 6.58  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 0.0  
SINCE JUN 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 1 20 -19 0  
SINCE JUN 1 81 244 -163 130  
SINCE JUL 1 1 59 -58 0  
 
COOLING  
YESTERDAY 5 3 2 16  
MONTH TO DATE 144 93 51 209  
SINCE JUN 1 457 267 190 486  
SINCE JAN 1 483 270 213 486    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 12.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 75 900 PM  
LOWEST 42 1100 AM  
AVERAGE 59  
   
......................................................
 
 
THE MISSOULA MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 100 1969  
MINIMUM TEMPERATURE (F) 49 36 1904  
 
SUNRISE AND SUNSET  
AUGUST 21 2023........SUNRISE 641 AM MDT SUNSET 837 PM MDT  
AUGUST 22 2023........SUNRISE 643 AM MDT SUNSET 835 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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