Climatological Report (Monthly)
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CXUS55 KTFX 011210
CLMHLN


CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
508 AM MST THU FEB 1 2018

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

...THE HELENA MT CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1866 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              63   01/25/2015
                        01/07/1902
                        02/27/1932
 LOW              -42   01/25/1957
                        01/31/1893
HIGHEST            51   01/30        33      18       45  01/30
LOWEST            -17   01/02         9     -26      -16  01/05
AVG. MAXIMUM     32.0              33.3    -1.3     20.7
AVG. MINIMUM     13.0              13.0     0.0      1.8
MEAN             22.5              23.1    -0.6     11.2
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     12              11.8     0.2       24
DAYS MIN <= 32     31              29.0     2.0       31
DAYS MIN <= 0       5               6.3    -1.3       14

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         3.75   1884
 MINIMUM            T   1987
TOTALS           0.34              0.36   -0.02     0.62
DAYS >= .01         6               6.2    -0.2
DAYS >= .10         2               1.1     0.9
DAYS >= .50         0               0.0     0.0
DAYS >= 1.00        0               0.0     0.0
GREATEST
 24 HR. TOTAL    0.11   01/11 TO 01/11

SNOWFALL (INCHES)
RECORDS
 TOTAL           35.6   1969
 24 HR TOTAL     14.1   01/20/1969 TO 01/21/1969
TOTALS            3.4               6.2    -2.8     12.7
SINCE 7/1        35.4              22.3    13.1
SNOWDEPTH AVG.      6
DAYS >= TRACE       8               5.6     2.4
DAYS >= 1.0         2               2.2    -0.2
GREATEST
 SNOW DEPTH         9   01/05
                        01/04
                        01/03
 24 HR TOTAL      1.6   01/10 TO 01/10

DEGREE_DAYS
HEATING TOTAL    1311              1297      14     1661
 SINCE 7/1       4644              4518     126     4678
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              4.3
HIGHEST WIND SPEED/DIRECTION    32/250    DATE  01/30
HIGHEST GUST SPEED/DIRECTION    42/240    DATE  01/30

SKY COVER
AVERAGE SKY COVER           0.40

AVERAGE RH (PERCENT)     75

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                3     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                8     SLEET                      0
FOG                      15     FOG W/VIS <= 1/4 MILE      2
HAZE                     10

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

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