889
CXUS55 KTFX 010811
CLMHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
211 AM MDT WED NOV 01 2023
...............................
..THE HELENA MT CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 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 87 10/10/2015
10/01/2001
10/01/1997
LOW -8 10/30/1991
HIGHEST 82 10/19 64 18 74 10/20
LOWEST 5 10/27 27 -22 27 10/28
10/28
AVG. MAXIMUM 56.1 57.6 -1.5 62.0
AVG. MINIMUM 34.4 33.5 0.9 37.8
MEAN 45.2 45.5 -0.3 49.9
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 5 1.1 3.9 0
DAYS MIN <= 32 8 13.8 -5.8 8
DAYS MIN <= 0 0 0.2 -0.2 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 2.81 1925
MINIMUM 0.01
TOTALS 1.47 0.78 0.69 1.80
DAYS >= .01 11 7.0 4.0
DAYS >= .10 3 2.6 0.4
DAYS >= .50 1 0.3 0.7
DAYS >= 1.00 0 0.0 0.0
GREATEST
24 HR. TOTAL 0.81 10/24 TO 10/25
SNOWFALL (INCHES)
RECORDS
TOTAL 27.7 1925
24 HR TOTAL 14.0 10/11/1891 TO 10/11/1891
TOTALS 13.9 2.8 11.1 T
SINCE 7/1 13.9 3.3 10.6
SNOWDEPTH AVG. 2
DAYS >= TRACE 5 1.5 3.5
DAYS >= 1.0 4 0.9 3.1
GREATEST
SNOW DEPTH 10 10/26
24 HR TOTAL 6.4
DEGREE DAYS
HEATING TOTAL 605 603 2 463
SINCE 7/1 730 878 -148 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 588 433 155 MM
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WIND (MPH)
AVERAGE WIND SPEED 5.4
HIGHEST WIND SPEED/DIRECTION 39/270 DATE 10/17
HIGHEST GUST SPEED/DIRECTION 58/260 DATE 10/17
SKY COVER
AVERAGE SKY COVER 0.44
AVERAGE RH (PERCENT) 65
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 2
LIGHT RAIN 9 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 5
LIGHT SNOW 5 SLEET 0
FOG 6 FOG W/VIS <= 1/4 MILE 1
HAZE 4
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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