029
CXUS55 KGGW 011021
CLMGGW
CLIMATE REPORT
NATIONAL WEATHER SERVICE GLASGOW, MT
421 AM MDT THU OCT 01 2026
...............................
..THE GLASGOW MT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1893 TO 2026
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 09/04 93
LOWEST 37 09/27 39
AVG. MAXIMUM 74.0 72.9 1.1 81.0
AVG. MINIMUM 49.8 2.9 49.8
MEAN 61.9 59.9 2.0 65.4
DAYS MAX >= 90 2 2
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 2.13 1.06 1.07 0.23
DAILY AVG. 0.07 0.04 0.03 0.01
DAYS >= .01 7 3
DAYS >= .10 3
DAYS >= .50 1 0
DAYS >= 1.00 1 0
GREATEST
24 HR. TOTAL 1.39 09/07 TO 09/07
SNOWFALL (INCHES)
RECORDS
TOTAL 4.6 1926
SNOW DEPTH 2 09/24/1984
TOTALS 0.0 0.0 0.0 0.0
SINCE 7/1 0.0 0.0 0.0 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 140 200 -60 55
SINCE 7/1 154 244 -90 MM
COOLING TOTAL 55 47 8 75
SINCE 1/1 672 582 90 MM
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WIND (MPH)
AVERAGE WIND SPEED 11.4
HIGHEST WIND SPEED/DIRECTION 40/300 DATE 09/14
HIGHEST GUST SPEED/DIRECTION 52/300 DATE 09/14
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.22
NUMBER OF DAYS FAIR 22
NUMBER OF DAYS PC 4
NUMBER OF DAYS CLOUDY 4
AVERAGE RH (PERCENT) 65
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 2
LIGHT RAIN 8 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 5 FOG W/VIS <= 1/4 MILE 0
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
SEPTEMBER WAS WARMER AND WETTER THAN NORMAL MONTH FOR GLASGOW.
TEMPERATURE AVERAGED 61.9 DEGREES WHICH WAS 2.0 DEGREES ABOVE
NORMAL. THE HIGH FOR THE MONTH WAS 93 DEGREES ON THE 4TH AND THE LOW
FOR THE MONTH WAS 37 ON THE 27TH.
THERE WAS 2.13 INCHES OF PRECIPITATION FOR SEPTEMBER WHICH WAS 1.07
INCHES ABOVE NORMAL. THE WETTEST DAY WAS THE 7TH WITH 1.39 INCHES OF
PRECIPITATION WHICH WAS THE 8TH WETTEST SEPTEMBER DAY ON RECORD.
NORMAL PRECIPITATION FOR SEPTEMBER IS 1.03 INCHES.
THE PEAK WIND FOR THE MONTH WAS 52 MPH ON THE 14TH. THERE WERE ALSO
PEAK WINDS OF 47 MPH ON THE 7TH, AND A PEAK WIND OF 45 MPH ON THE
8TH. THE WINDIEST DAY WAS THE 14TH WITH AN AVERAGE WIND SPEED OF
17.7 MPH.
LOOKING AHEAD TO OCTOBER, THE NORMAL HIGH STARTS WITH 65 AND COOLS
TO 48 BY THE END OF THE MONTH. THE NORMAL LOW STARTS WITH 41 AND
COOLS TO 27 BY THE END OF THE MONTH. NORMAL OCTOBER PRECIPITATION IS
0.92 INCHES WITH 1.5 INCHES OF SNOW.
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