892
CXUS55 KMSO 022142
CLMMSO

CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
342 PM MDT THU OCT 02 2025

...................................

...THE MISSOULA MT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1893 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             99   09/01/1967
 LOW              15   09/25/1926
HIGHEST           96   09/01         MM      MM       93
                       09/02
                       09/03
LOWEST            36   09/23         MM      MM       32
AVG. MAXIMUM    81.2               72.6     8.6     77.4
AVG. MINIMUM    47.1               42.4     4.7     46.4
MEAN            64.2               57.5     6.7     61.9
DAYS MAX >= 90     3                1.4     1.6        6
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                1.7    -1.7        1
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        3.60   1985
 MINIMUM           T   2012
TOTALS          0.41               0.96   -0.55     1.05
DAILY AVG.      0.01               0.03   -0.02     0.04
DAYS >= .01        6                7.3    -1.3        4
DAYS >= .10        1                3.0    -2.0        3
DAYS >= .50        0                0.3    -0.3        1
DAYS >= 1.00       0                0.0     0.0        0
GREATEST
 24 HR. TOTAL   0.22   09/29 TO 09/30               0.74

SNOWFALL (INCHES)
TOTALS           0.0                0.1    -0.1      0.0
SINCE 7/1        0.0                0.1    -0.1       MM
DAYS >= TRACE      0                0.0     0.0        0
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0                                   0
 24 HR TOTAL     0.0                                  MM

DEGREE DAYS
HEATING TOTAL     72                240    -168
 SINCE 7/1       106                325    -219
COOLING TOTAL     54                 15      39
 SINCE 1/1       441                307     134
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              4.0
HIGHEST WIND SPEED/DIRECTION    36/190    DATE  09/11
HIGHEST GUST SPEED/DIRECTION    48/190    DATE  09/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.13
NUMBER OF DAYS FAIR           28
NUMBER OF DAYS PC              1
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     52

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       3
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       3     FOG W/VIS <= 1/4 MILE      0
HAZE                      5

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$