700
CDUS45 KMSO 172230
CLIMSO
CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
430 PM MDT THU SEP 17 2026
...............................
..THE MISSOULA MT CLIMATE SUMMARY FOR SEPTEMBER 17 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 72 244 PM 91 1981 72 0 81
MINIMUM 43 715 AM 24 1965 42 1 46
AVERAGE 58 57 1 64
PRECIPITATION (IN)
TODAY 0.00 0.80 1900 0.03 -0.03 0.00
MONTH TO DATE 1.96 0.55 1.41 0.19
SINCE OCT 1 16.80 13.70 3.10 10.53
SINCE JAN 1 11.59 10.26 1.33 8.96
SNOWFALL (IN)
TODAY 0.0
MONTH TO DATE 0.0
SINCE SEP 1 0.0
SINCE JUL 1 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 7 8 -1 1
MONTH TO DATE 121 99 22 23
SINCE SEP 1 121 99 22 23
SINCE JUL 1 148 185 -37 57
COOLING
TODAY 0 0 0 0
MONTH TO DATE 2 11 -9 53
SINCE SEP 1 2 11 -9 53
SINCE JAN 1 390 303 87 440
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 1.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 700 AM
LOWEST 45 300 PM
AVERAGE 71
......................................................
THE MISSOULA MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 92 1938
MINIMUM TEMPERATURE (F) 42 24 1971
SUNRISE AND SUNSET
SEPTEMBER 17 2026.....SUNRISE 717 AM MDT SUNSET 744 PM MDT
SEPTEMBER 18 2026.....SUNRISE 718 AM MDT SUNSET 742 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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