245  
CDUS45 KMSO 210742  
CLIMSO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
142 AM MDT WED MAY 21 2025  
   
...............................  
 
   
..THE MISSOULA MT CLIMATE SUMMARY FOR MAY 20 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 60 316 PM 88 1958 68 -8 56  
2023  
MINIMUM 41 1225 AM 28 1989 41 0 33  
AVERAGE 51 54 -3 45  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 1.52 1901 0.06 -0.03 0.18  
MONTH TO DATE 0.93 0.98 -0.05 1.09  
SINCE OCT 1 6.96 8.54 -1.58 7.25  
SINCE JAN 1 5.39 5.10 0.29 5.05  
 
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 14 11 3 20  
MONTH TO DATE 237 272 -35 268  
SINCE MAR 1 1538 1753 -215 1630  
SINCE JUL 1 6547 7225 -678 6613  
 
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 25 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 7.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 500 AM  
LOWEST 33 200 PM  
AVERAGE 63  
   
......................................................  
 
THE MISSOULA MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 90 1919  
1928  
MINIMUM TEMPERATURE (F) 41 28 1953  
1960  
2009  
 
SUNRISE AND SUNSET  
MAY 21 2025...........SUNRISE 554 AM MDT SUNSET 912 PM MDT  
MAY 22 2025...........SUNRISE 553 AM MDT SUNSET 914 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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