Climatological Report (Monthly)
Issued by NWS
Issued by NWS
432
CXUS55 KTFX 010926
CLMHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
226 AM MST WED JAN 01 2025
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...THE HELENA MT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2024...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1866 TO 2024
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 70 12/01/2021
LOW -40 12/30/1880
HIGHEST 58 12/07 35 23 64 12/05
LOWEST 17 12/03 9 8 5 12/26
AVG. MAXIMUM 44.2 32.6 11.6 41.6
AVG. MINIMUM 26.2 14.2 12.0 22.4
MEAN 35.2 23.4 11.8 32.0
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 2 13.2 -11.2 6
DAYS MIN <= 32 30 29.7 0.3 28
DAYS MIN <= 0 0 4.5 -4.5 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 4.64 1880
MINIMUM T
TOTALS 0.30 0.46 -0.16 0.03
DAYS >= .01 4 6.6 -2.6
DAYS >= .10 1 1.6 -0.6
DAYS >= .50 0 0.0 0.0
DAYS >= 1.00 0 0.0 0.0
GREATEST
24 HR. TOTAL 0.14 12/15 TO 12/15
SNOWFALL (INCHES)
RECORDS
TOTAL 102.8 1929
24 HR TOTAL 18.0 12/09/1906 TO 12/09/1906
TOTALS 2.0 7.7 -5.7 0.6
SINCE 7/1 4.3 16.4 -12.1 MM
SNOWDEPTH AVG. 0
DAYS >= TRACE 7 5.2 1.8
DAYS >= 1.0 1 2.2 -1.2
GREATEST
SNOW DEPTH 1 12/09
24 HR TOTAL MM
DEGREE DAYS
HEATING TOTAL 917 1290 -373 1013
SINCE 7/1 2300 3130 -830 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 590 433 157 MM
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WIND (MPH)
AVERAGE WIND SPEED 5.3
HIGHEST WIND SPEED/DIRECTION 45/250 DATE 12/18
HIGHEST GUST SPEED/DIRECTION 66/270 DATE 12/18
SKY COVER
AVERAGE SKY COVER 0.43
AVERAGE RH (PERCENT) 63
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 0 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 1
LIGHT SNOW 7 SLEET 0
FOG 5 FOG W/VIS <= 1/4 MILE 2
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$