Climatological Report (Monthly)
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CXUS55 KTFX 021651
CLMGTF

CLIMATE REPORT...COR
NATIONAL WEATHER SERVICE GREAT FALLS MT
949 AM MST WED JAN 2 2019

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

...THE GREAT FALLS MT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1886 TO 2019

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              69   12/05/1939
 LOW              -43   12/29/1968
HIGHEST            56   12/16        37      19       56
LOWEST              1   12/31        12     -11      -26
AVG. MAXIMUM     38.8              34.6     4.2     29.4
AVG. MINIMUM     20.0              14.9     5.1     12.8
MEAN             29.4              24.8     4.6     21.1
DAYS MAX >= 90      0               0.0     0.0
DAYS MAX <= 32     10              10.4    -0.4
DAYS MIN <= 32     28              27.2     0.8
DAYS MIN <= 0       0               5.4    -5.4

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         2.49   1917
 MINIMUM            T   1954
TOTALS           0.33              0.55   -0.22     1.31
DAYS >= .01         6               7.5    -1.5
DAYS >= .10         1               1.8    -0.8
DAYS >= .50         0               0.1    -0.1
DAYS >= 1.00        0               0.0     0.0
GREATEST
 24 HR. TOTAL    0.18   12/01 TO 12/01

SNOWFALL (INCHES)
RECORDS
 TOTAL           30.5   2008
 24 HR TOTAL     14.0   12/12/1932 TO 12/12/1932
TOTALS            5.1               9.5    -4.4     20.7
SINCE 7/1        17.5              23.2    -5.7     36.1
SNOWDEPTH AVG.      0
DAYS >= TRACE       8               7.5     0.5
DAYS >= 1.0         2               3.1    -1.1
GREATEST
 SNOW DEPTH         2   12/02
 24 HR TOTAL      2.7   12/01 TO 12/01

DEGREE_DAYS
HEATING TOTAL    1096              1248    -152     1354
 SINCE 7/1       3127              3217     -90     3229
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        324               298      26      456
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              14.5
HIGHEST WIND SPEED/DIRECTION    44/230    DATE  12/29
HIGHEST GUST SPEED/DIRECTION    61/230    DATE  12/29

SKY COVER
AVERAGE SKY COVER           0.30

AVERAGE RH (PERCENT)     64

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                  2
LIGHT SNOW            8         SLEET                 0
FOG                  10         FOG W/VIS <=1/4 MILE  6
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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