Climatological Report (Daily)
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CDUS45 KTFX 171118
CLILWT


CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
416 AM MST SUN DEC 17 2017


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

...THE LEWISTOWN MT CLIMATE SUMMARY FOR DECEMBER 16 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1896 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         32    207 PM  61    1980  34     -2        0
  MINIMUM         19   1026 PM -31    1964  12      7      -25
  AVERAGE         26                        23      3      -12

PRECIPITATION (IN)
  YESTERDAY        T             0.42 1929   0.02  -0.02      T
  MONTH TO DATE    0.42                      0.33   0.09     0.17
  SINCE OCT 1      1.80                      2.17  -0.37     4.24
  SINCE JAN 1     12.41                     16.52  -4.11    20.27

SNOWFALL (IN)
  YESTERDAY       MM
  SNOW DEPTH       T

DEGREE DAYS
 HEATING
  YESTERDAY       39                        42     -3       77
  MONTH TO DATE  518                       655   -137      900
  SINCE DEC 1    518                       655   -137      900
  SINCE JUL 1   2492                      2783   -291     2626

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    375                       210    165      259
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION    SW (210)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     4.7


SKY COVER
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           600 AM
 LOWEST     72          1200 PM
 AVERAGE    86

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


THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   33        65      1925
 MINIMUM TEMPERATURE (F)   12       -30      1924


SUNRISE AND SUNSET
DECEMBER 17 2017......SUNRISE   759 AM MST   SUNSET   430 PM MST
DECEMBER 18 2017......SUNRISE   759 AM MST   SUNSET   430 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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