388
CDUS45 KMSO 212230
CLIMSO
CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
430 PM MDT THU MAY 21 2026
...............................
..THE MISSOULA MT CLIMATE SUMMARY FOR MAY 21 2026
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1893 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 61 255 PM 90 1919 68 -7 60
1928
MINIMUM 38 532 AM 28 1953 41 -3 34
1960
2009
AVERAGE 50 55 -5 47
PRECIPITATION (IN)
TODAY 0.03 1.54 1981 0.06 -0.03 T
MONTH TO DATE 0.42 1.04 -0.62 0.93
SINCE OCT 1 10.67 8.60 2.07 6.96
SINCE JAN 1 5.46 5.16 0.30 5.39
SNOWFALL (IN)
TODAY 0.0
MONTH TO DATE T
SINCE MAR 1 6.5
SINCE JUL 1 20.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 15 10 5 18
MONTH TO DATE 257 282 -25 255
SINCE MAR 1 1595 1763 -168 1556
SINCE JUL 1 5938 7235 -1297 6565
COOLING
TODAY 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 12 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 4.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 400 AM
LOWEST 30 200 PM
AVERAGE 64
......................................................
THE MISSOULA MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 90 1919
MINIMUM TEMPERATURE (F) 42 22 1960
SUNRISE AND SUNSET
MAY 21 2026...........SUNRISE 554 AM MDT SUNSET 912 PM MDT
MAY 22 2026...........SUNRISE 553 AM MDT SUNSET 913 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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