Climatological Report (Monthly) Issued by NWS
000
CXUS55 KTFX 010857
CLMHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
157 AM MST MON JAN 01 2024
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...THE HELENA MT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1866 TO 2023
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 64 12/05 35 29 53 12/27
LOWEST 5 12/26 9 -4 -35 12/22
AVG. MAXIMUM 41.6 32.6 9.0 27.7
AVG. MINIMUM 22.4 14.2 8.2 8.8
MEAN 32.0 23.4 8.6 18.2
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 6 13.2 -7.2 16
DAYS MIN <= 32 28 29.7 -1.7 29
DAYS MIN <= 0 0 4.5 -4.5 6
PRECIPITATION (INCHES)
RECORD
MAXIMUM 4.64 1880
MINIMUM T
TOTALS 0.03 0.46 -0.43 0.69
DAYS >= .01 1 6.6 -5.6
DAYS >= .10 0 1.6 -1.6
DAYS >= .50 0 0.0 0.0
DAYS >= 1.00 0 0.0 0.0
GREATEST
24 HR. TOTAL 0.03 12/11 TO 12/11
SNOWFALL (INCHES)
RECORDS
TOTAL 102.8 1929
24 HR TOTAL 18.0 12/09/1906 TO 12/09/1906
TOTALS 0.6 7.7 -7.1 10.7
SINCE 7/1 14.5 16.4 -1.9
SNOWDEPTH AVG. T
DAYS >= TRACE 5 5.2 -0.2
DAYS >= 1.0 0 2.2 -2.2
GREATEST
SNOW DEPTH MM
24 HR TOTAL 0.5 12/23 TO 12/23
DEGREE DAYS
HEATING TOTAL 1013 1290 -277 1443
SINCE 7/1 2574 3130 -556 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 588 433 155 MM
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WIND (MPH)
AVERAGE WIND SPEED 3.9
HIGHEST WIND SPEED/DIRECTION 30/250 DATE 12/02
HIGHEST GUST SPEED/DIRECTION 42/270 DATE 12/02
SKY COVER
AVERAGE SKY COVER 0.37
AVERAGE RH (PERCENT) 65
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 1 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 1
LIGHT SNOW 5 SLEET 0
FOG 9 FOG W/VIS <= 1/4 MILE 5
HAZE 8
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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