255
CDUS45 KMSO 182230
CLIMSO
CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
430 PM MDT THU SEP 18 2025
...............................
..THE MISSOULA MT CLIMATE SUMMARY FOR SEPTEMBER 18 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 82 259 PM 92 1938 72 10 68
MINIMUM 42 654 AM 24 1971 42 0 54
AVERAGE 62 57 5 61
PRECIPITATION (IN)
TODAY 0.00 1.28 1908 0.03 -0.03 0.04
MONTH TO DATE 0.19 0.58 -0.39 1.05
SINCE OCT 1 10.53 13.73 -3.20 11.31
SINCE JAN 1 8.96 10.29 -1.33 9.11
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 3 8 -5 4
MONTH TO DATE 26 107 -81 49
SINCE SEP 1 26 107 -81 49
SINCE JUL 1 60 193 -133 81
COOLING
TODAY 0 0 0 0
MONTH TO DATE 53 11 42 42
SINCE SEP 1 53 11 42 42
SINCE JAN 1 440 303 137 470
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 1.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 700 AM
LOWEST 24 300 PM
AVERAGE 58
......................................................
THE MISSOULA MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 89 1938
MINIMUM TEMPERATURE (F) 42 23 1964
SUNRISE AND SUNSET
SEPTEMBER 18 2025.....SUNRISE 718 AM MDT SUNSET 741 PM MDT
SEPTEMBER 19 2025.....SUNRISE 720 AM MDT SUNSET 739 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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