Climatological Report (Monthly)
Issued by NWS

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CXUS55 KTFX 011614
CLMHLN

CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
914 AM MST SUN NOV 01 2020

...................................

...THE HELENA MT CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1866 TO 2020

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             87   10/10/2015
                       10/01/2001
                       10/01/1997
 LOW              -8   10/30/1991
HIGHEST           84   10/04         64      20       73  10/25
                       10/06
LOWEST            -6   10/26         27     -33        2  10/30
AVG. MAXIMUM    55.1               58.7    -3.6     49.6
AVG. MINIMUM    31.3               32.5    -1.2     27.1
MEAN            43.2               45.6    -2.4     38.4
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     6                0.6     5.4        5
DAYS MIN <= 32    13               13.6    -0.6       20
DAYS MIN <= 0      2                0.0     2.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        2.81   1925
 MINIMUM        0.01
TOTALS          2.03               0.68    1.35     1.00
DAYS >= .01        9                6.2     2.8
DAYS >= .10        6                2.1     3.9
DAYS >= .50        2                0.2     1.8
DAYS >= 1.00       0                0.0     0.0
GREATEST
 24 HR. TOTAL   1.00   10/23 TO 10/24

SNOWFALL (INCHES)
RECORDS
 TOTAL          27.7   1925
 24 HR TOTAL    14.0   10/11/1891 TO 10/11/1891
TOTALS          25.4                2.4    23.0      5.6
SINCE 7/1       25.4                4.0    21.4
SNOWDEPTH AVG.     2
DAYS >= TRACE      7                1.8     5.2
DAYS >= 1.0        4                0.8     3.2
GREATEST
 SNOW DEPTH       11R  10/24
 24 HR TOTAL      MM

DEGREE DAYS
HEATING TOTAL    670                602      68      818
 SINCE 7/1       841                907     -66       MM
COOLING TOTAL      1                  0       1        0
 SINCE 1/1       507                406     101       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.9
HIGHEST WIND SPEED/DIRECTION    40/260    DATE  10/14
HIGHEST GUST SPEED/DIRECTION    57/280    DATE  10/12
                                57/250          10/14

SKY COVER
AVERAGE SKY COVER           0.37

AVERAGE RH (PERCENT)     56

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                1     SNOW                       3
LIGHT SNOW                7     SLEET                      0
FOG                       6     FOG W/VIS <= 1/4 MILE      2
HAZE                      7

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$


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