865
CXUS55 KTFX 011633
CLMGTF

CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
933 AM MST SUN NOV 01 2026

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

...THE GREAT FALLS MT CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1886 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             91   10/03/1943
 LOW             -11   10/30/1991
HIGHEST           85   10/05         65      20       78
LOWEST            20   10/25         31     -11       20
AVG. MAXIMUM    59.2               57.0     2.2     58.4
AVG. MINIMUM    34.8               32.6     2.2     34.4
MEAN            47.0               44.8     2.2     46.4
DAYS MAX >= 90     0                0.0     0.0
DAYS MAX <= 32     1                1.7    -0.7
DAYS MIN <= 32    11               14.6    -3.6
DAYS MIN <= 0      0                0.3    -0.3

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        3.43   1975
 MINIMUM           T
TOTALS          3.01               1.07    1.94     0.96
DAYS >= .01        8                7.4     0.6
DAYS >= .10        3                3.2    -0.2
DAYS >= .50        3                0.4     2.6
DAYS >= 1.00       1                0.0     1.0
GREATEST
 24 HR. TOTAL   1.66   10/10 TO 10/11

SNOWFALL (INCHES)
RECORDS
 TOTAL          28.0   2020
 24 HR TOTAL     9.7   10/03/1957 TO 10/04/1957
TOTALS          19.2                5.2    14.0      1.2
SINCE 7/1       19.2                6.3    12.9       MM
SNOWDEPTH AVG.     1
DAYS >= TRACE      4                3.3     0.7
DAYS >= 1.0        3                1.8     1.2
GREATEST
 SNOW DEPTH       10R  10/12
 24 HR TOTAL     9.3   10/11 TO 10/11

DEGREE DAYS
HEATING TOTAL    558                628     -70      569
 SINCE 7/1       816               1000    -184       MM
COOLING TOTAL      7                  2       5        0
 SINCE 1/1       391                310      81       MM
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              9.4
HIGHEST WIND SPEED/DIRECTION    39/240    DATE  10/09
                                39/230          10/17
HIGHEST GUST SPEED/DIRECTION    56/240    DATE  10/09

SKY COVER
AVERAGE SKY COVER           0.26

AVERAGE RH (PERCENT)     64

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       2
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                2     SNOW                       3
LIGHT SNOW                4     SLEET                      0
FOG                      10     FOG W/VIS <= 1/4 MILE      7
HAZE                      3

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

$$