108  
CDUS45 KMSO 200737  
CLIMSO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
137 AM MDT TUE MAY 20 2025  
   
...............................  
 
   
..THE MISSOULA MT CLIMATE SUMMARY FOR MAY 19 2025  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1893 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 56 402 PM 91 2002 67 -11 53  
MINIMUM 32 252 AM 27 1974 41 -9 36  
AVERAGE 44 54 -10 45  
 
PRECIPITATION (IN)  
YESTERDAY T 1.49 1902 0.06 -0.06 0.11  
MONTH TO DATE 0.90 0.92 -0.02 0.91  
SINCE OCT 1 6.93 8.48 -1.55 7.07  
SINCE JAN 1 5.36 5.04 0.32 4.87  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 0.0  
SINCE MAR 1 0.4  
SINCE JUL 1 39.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 21 11 10 20  
MONTH TO DATE 223 261 -38 248  
SINCE MAR 1 1524 1742 -218 1610  
SINCE JUL 1 6533 7214 -681 6593  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 3.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 600 AM  
LOWEST 35 400 PM  
AVERAGE 62  
   
......................................................  
 
THE MISSOULA MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 88 1958  
2023  
MINIMUM TEMPERATURE (F) 41 28 1989  
 
SUNRISE AND SUNSET  
MAY 20 2025...........SUNRISE 555 AM MDT SUNSET 911 PM MDT  
MAY 21 2025...........SUNRISE 554 AM MDT SUNSET 912 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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