Climatological Report (Monthly)
Issued by NWS
Issued by NWS
977
CXUS55 KTFX 010854
CLMHVR
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
254 AM MDT WED OCT 01 2025
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...THE HAVRE MT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1880 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..............................................................
TEMPERATURE (F)
RECORD
HIGH 104 09/07/2022
LOW 18 09/21/1995
09/28/1984
09/27/1928
HIGHEST 90 09/21 78 12 95
09/24
LOWEST 35 09/05 36 -1 36
AVG. MAXIMUM 80.6 73.0 7.6 79.2
AVG. MINIMUM 45.0 42.5 2.5 47.8
MEAN 62.8 57.7 5.1 63.5
DAYS MAX >= 90 2 2.7 -0.7 7
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 2.6 -2.6 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 5.99 1911
MINIMUM 0.04
TOTALS MM 1.06 MM 2.17
DAYS >= .01 1 6.8 -5.8
DAYS >= .10 0 3.1 -3.1
DAYS >= .50 0 0.4 -0.4
DAYS >= 1.00 0 0.0 0.0
GREATEST
24 HR. TOTAL 0.07 09/10 TO 09/10
SNOWFALL (INCHES)
RECORDS
TOTAL 10.5 1934
24 HR TOTAL 7.8 09/23/1934 TO 09/24/1934
TOTALS 0.0 0.4 -0.4 0.0
SINCE 7/1 0.0 0.4 -0.4 MM
SNOWDEPTH AVG. 0
DAYS >= TRACE 0 0.1 -0.1
DAYS >= 1.0 0 0.1 -0.1
GREATEST
SNOW DEPTH 0
24 HR TOTAL MM
DEGREE DAYS
HEATING TOTAL 82 241 -159 96
SINCE 7/1 112 316 -204 MM
COOLING TOTAL 27 23 4 61
SINCE 1/1 310 403 -93 MM
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WIND (MPH)
AVERAGE WIND SPEED 7.4
HIGHEST WIND SPEED/DIRECTION 30/290 DATE 09/21
HIGHEST GUST SPEED/DIRECTION 40/300 DATE 09/21
SKY COVER
AVERAGE SKY COVER 0.07
AVERAGE RH (PERCENT) 55
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 2 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 2 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.
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