Climatological Report (Monthly)
Issued by NWS
Issued by NWS
642
CXUS55 KTFX 010758
CLMHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
158 AM MDT MON SEP 01 2025
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...THE HELENA MT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1866 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 105 08/24/1969
LOW 28 08/25/1992
HIGHEST 95 08/12 85 10 103 08/03
08/19
LOWEST 49 08/07 47 2 44 08/28
08/08
08/23
AVG. MAXIMUM 84.1 84.6 -0.5 85.6
AVG. MINIMUM 55.3 52.9 2.4 54.0
MEAN 69.7 68.8 0.9 69.8
DAYS MAX >= 90 7 10.6 -3.6 10
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 4.23 1974
MINIMUM T
TOTALS 2.02 1.04 0.98 0.76
DAYS >= .01 8 6.3 1.7
DAYS >= .10 5 3.1 1.9
DAYS >= .50 2 0.2 1.8
DAYS >= 1.00 0 0.0 0.0
GREATEST
24 HR. TOTAL 0.99 08/16 TO 08/17
SNOWFALL (INCHES)
RECORDS
TOTAL 6.2 1992
24 HR TOTAL 6.2 08/22/1992 TO 08/23/1992
TOTALS 0.0 0.3 -0.3 0.0
SINCE 7/1 0.0 0.3 -0.3 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 14 40 -26 10
SINCE 7/1 26 61 -35 MM
COOLING TOTAL 166 156 10 167
SINCE 1/1 431 405 26 MM
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WIND (MPH)
AVERAGE WIND SPEED 5.9
HIGHEST WIND SPEED/DIRECTION 38/270 DATE 08/04
HIGHEST GUST SPEED/DIRECTION 49/270 DATE 08/04
SKY COVER
AVERAGE SKY COVER 0.21
AVERAGE RH (PERCENT) 50
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 8 MIXED PRECIP 0
HEAVY RAIN 5 RAIN 4
LIGHT RAIN 10 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 2
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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