Climatological Report (Monthly)
Issued by NWS Glasgow, MT

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641
CXUS55 KGGW 012025
CLMGGW

CLIMATE REPORT
NATIONAL WEATHER SERVICE GLASGOW, MT
225 PM MDT WED OCT 01 2025

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

...THE GLASGOW 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 DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            106   09/07/2022
 LOW              14   09/25/1928
HIGHEST           93   09/01                          99
LOWEST            39   09/05                          42
AVG. MAXIMUM    81.0               72.9     8.1     82.6
AVG. MINIMUM    49.8                        2.9     53.1
MEAN            65.4               59.9     5.5     67.8
DAYS MAX >= 90     2                                   7
DAYS MAX <= 32     0                                   0
DAYS MIN <= 32     0                                   0
DAYS MIN <= 0      0                                   0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        4.72   1938
 MINIMUM        0.00   1899
TOTALS          0.23               1.06   -0.83     1.60
DAILY AVG.      0.01               0.04   -0.03     0.05
DAYS >= .01        3                                   6
DAYS >= .10        1
DAYS >= .50        0                                   1
DAYS >= 1.00       0                                   0
GREATEST
 24 HR. TOTAL   0.21   09/13 TO 09/13

SNOWFALL (INCHES)
RECORDS
 TOTAL           4.6   1926
 SNOW DEPTH        2   09/24/1984
TOTALS           0.0                0.0     0.0      0.0
 LIQUID EQUIV   0.00               0.00    0.00     0.00
SINCE 7/1        0.0                0.0     0.0       MM
 LIQUID 7/1     0.00               0.00    0.00       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= TRACE      0                                   0
DAYS >= 1.0        0                                   0
GREATEST
 SNOW DEPTH        0                                   0  MM
 24 HR TOTAL     0.0

DEGREE DAYS
HEATING TOTAL     55                200    -145       41
 SINCE 7/1        78                244    -166       MM
COOLING TOTAL     75                 47      28      132
 SINCE 1/1       596                582      14       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.5
HIGHEST WIND SPEED/DIRECTION    36/340    DATE  09/04
HIGHEST GUST SPEED/DIRECTION    50/340    DATE  09/04

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.06
NUMBER OF DAYS FAIR           30
NUMBER OF DAYS PC              0
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     51

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       1
LIGHT RAIN                5     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      1
HAZE                      4

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

&&

SEPTEMBER TEMPERATURES WERE MODERATELY ABOVE NORMAL. THE AVERAGE
TEMPERATURE OF 65.4 WAS 5.5 DEGREES ABOVE NORMAL. THE AVERAGE
HIGH TEMPERATURE WAS 8.1 DEGREES ABOVE NORMAL. SEPTEMBER REACHED AT OR
ABOVE 90 DEGREES TWICE.
THE COOLEST HIGH TEMPERATURE WAS 68 DEGREES ON THE 5TH, WHICH BY THE WAY WAS
ALSO THE COOLEST TEMPERATURE IN AUGUST. THE AVERAGE
LOW TEMPERATURE WAS 2.9 DEGREES ABOVE NORMAL.

THE PRECIPITATION TOTAL FOR SEPTEMBER WAS 0.23 INCHES. NORMAL PRECIPITATION FOR
THE MONTH OF SEPTEMBER IS 1.06 INCHES. THE WETTEST DAY WAS THE 13TH WHEN 0.21
INCHES OF PRECIPITATION WAS MEASURED.

THE PEAK WIND GUST FOR THE MONTH WAS 50 MPH ON THE 4TH. THE WINDIEST DAY
WAS ALSO THE 5TH WITH AN AVERAGE WIND SPEED OF 19.4 MPH.

LOOKING AHEAD TO OCTOBER, THE NORMAL HIGH STARTS WITH 66 AND COOLS
TO 48 BY THE END OF THE MONTH. THE NORMAL LOW STARTS AT 41 AND
LOWERS TO 27. NORMAL OCTOBER PRECIPITATION IS 0.90 INCHES.

$$