Climatological Report (Monthly)
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CXUS55 KTFX 010917
CLMGTF


CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
317 AM MDT WED NOV 1 2017

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

...THE GREAT FALLS MT CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1886 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              91   10/03/1943
 LOW              -11   10/30/1991
HIGHEST            74   10/19        65       9       74
LOWEST             22   10/04        31      -9       17
AVG. MAXIMUM     56.3              57.7    -1.4     57.1
AVG. MINIMUM     34.2              32.8     1.4     35.7
MEAN             45.2              45.2     0.0     46.4
DAYS MAX >= 90      0               0.0     0.0
DAYS MAX <= 32      0               1.2    -1.2
DAYS MIN <= 32     16              13.4     2.6
DAYS MIN <= 0       0               0.2    -0.2

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         3.43   1975
 MINIMUM            T   1965
                        1964
                        1937
TOTALS           0.58              0.86   -0.28     1.76
DAYS >= .01         9               6.6     2.4
DAYS >= .10         2               2.7    -0.7
DAYS >= .50         0               0.3    -0.3
DAYS >= 1.00        0               0.0     0.0
GREATEST
 24 HR. TOTAL    0.24   10/31 TO 10/31

SNOWFALL (INCHES)
RECORDS
 TOTAL           18.5   1925
 24 HR TOTAL      9.7   10/03/1957 TO 10/04/1957
TOTALS            2.0               4.1    -2.1      1.5
SINCE 7/1         2.0               5.6    -3.6      1.5
SNOWDEPTH AVG.      0
DAYS >= TRACE       7               3.1     3.9
DAYS >= 1.0         1               1.5    -0.5
GREATEST
 SNOW DEPTH         1   10/03
 24 HR TOTAL      1.0   10/02 TO 10/02

DEGREE_DAYS
HEATING TOTAL     603               613     -10      566
 SINCE 7/1        917              1020    -103      950
COOLING TOTAL       0                 1      -1        0
 SINCE 1/1        456               298     158      252
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              15.5
HIGHEST WIND SPEED/DIRECTION    46/240    DATE  10/22
HIGHEST GUST SPEED/DIRECTION    62/240    DATE  10/22

SKY COVER
AVERAGE SKY COVER           0.30

AVERAGE RH (PERCENT)     52

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       2
LIGHT SNOW                7     SLEET                      0
FOG                       6     FOG W/VIS <= 1/4 MILE      0
HAZE                      0

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

$$



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