Climatological Report (Monthly)
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CXUS55 KTFX 011442
CLMGTF

CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
842 AM MDT SUN OCT 01 2023

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

...THE GREAT FALLS MT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1886 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH            102   09/03/2022
                       09/03/2022
 LOW              27   09/13/2016
HIGHEST           92   09/02         76      16      102
LOWEST            37   09/29         40      -3       33
AVG. MAXIMUM    74.4               71.7     2.7     78.2
AVG. MINIMUM    46.2               42.8     3.4     46.1
MEAN            60.3               57.2     3.1     62.2
DAYS MAX >= 90     1                1.8    -0.8
DAYS MAX <= 32     0                0.1    -0.1
DAYS MIN <= 32     0                2.0    -2.0
DAYS MIN <= 0      0                0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        3.56   1941
 MINIMUM           T
TOTALS          2.52               1.33    1.19     2.33
DAYS >= .01        9                7.1     1.9
DAYS >= .10        5                3.4     1.6
DAYS >= .50        2                0.8     1.2
DAYS >= 1.00       0                0.1    -0.1
GREATEST
 24 HR. TOTAL   0.90   09/22 TO 09/23

SNOWFALL (INCHES)
RECORDS
 TOTAL          19.3   1934
 24 HR TOTAL     6.1   09/28/1954 TO 09/28/1954
TOTALS           0.0                0.8    -0.8      0.0
SINCE 7/1        0.0                1.1    -1.1       MM
SNOWDEPTH AVG.     0
DAYS >= TRACE      0                0.2    -0.2
DAYS >= 1.0        0                0.1    -0.1
GREATEST
 SNOW DEPTH        0
 24 HR TOTAL      MM

DEGREE DAYS
HEATING TOTAL    163                258     -95      150
 SINCE 7/1       203                371    -168       MM
COOLING TOTAL     29                 25       4       74
 SINCE 1/1       333                308      25       MM
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              8.5
HIGHEST WIND SPEED/DIRECTION    32/260    DATE  09/17
HIGHEST GUST SPEED/DIRECTION    45/250    DATE  09/27

SKY COVER
AVERAGE SKY COVER           0.29

AVERAGE RH (PERCENT)     55

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       4
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       1
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      1
HAZE                      4

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

$$


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