Climatological Report (Daily)
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CDUS45 KTFX 180746
CLIHLN


CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
1244 AM MST THU DEC 18 2014


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

...THE HELENA MT CLIMATE SUMMARY FOR DECEMBER 17 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1866 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         36    332 PM  58    1998  31      5       52
  MINIMUM         18   1024 PM -38    1964  11      7       27
  AVERAGE         27                        21      6       40

PRECIPITATION (IN)
  YESTERDAY        T             0.17 1955   0.01  -0.01     0.00
  MONTH TO DATE    0.34                      0.23   0.11     0.20
  SINCE OCT 1      1.81                      1.40   0.41     0.91
  SINCE JAN 1     11.77                     11.05   0.72    10.49

SNOWFALL (IN)
  YESTERDAY        0.1           2.8  1955   0.2   -0.1      0.0
  MONTH TO DATE    0.7                       4.1   -3.4      0.6
  SINCE DEC 1      0.7                       4.1   -3.4      0.6
  SINCE JUL 1     11.5                      12.9   -1.4      4.1
  SNOW DEPTH       T

DEGREE DAYS
 HEATING
  YESTERDAY       38                        44     -6       25
  MONTH TO DATE  605                       718   -113      769
  SINCE DEC 1    605                       718   -113      769
  SINCE JUL 1   2317                      2600   -283     2560

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    469                       406     63      589
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED     6   HIGHEST WIND DIRECTION    NW (330)
  HIGHEST GUST SPEED     7   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED     0.5


SKY COVER
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW
  FOG
  FOG W/VISIBILITY <= 1/4 MILE
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1100 PM
 LOWEST     70           300 PM
 AVERAGE    85

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


THE HELENA MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        59      1917
 MINIMUM TEMPERATURE (F)   11       -30      1924


SUNRISE AND SUNSET
DECEMBER 18 2014......SUNRISE   808 AM MST   SUNSET   442 PM MST
DECEMBER 19 2014......SUNRISE   808 AM MST   SUNSET   442 PM MST


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




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