Climatological Report (Daily)
Issued by NWS Missoula, MT

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CDUS45 KMSO 210750
CLIBTM


CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA, MT
1250 AM MST SUN DEC 21 2014


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

...THE BUTTE MT CLIMATE SUMMARY FOR DECEMBER 20 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1895 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         35   1108 PM  49    1958  29      6       23
  MINIMUM         17    538 AM -36    1998   5     12       -6
  AVERAGE         26                        17      9        9

PRECIPITATION (IN)
  YESTERDAY        T             0.25 1941   0.02  -0.02     0.02
  MONTH TO DATE    0.20                      0.33  -0.13     0.20
  SINCE OCT 1      2.03                      1.71   0.32     1.02
  SINCE JAN 1     14.47                     12.59   1.88    11.30

SNOWFALL (IN)
  YESTERDAY       MM
  MONTH TO DATE   MM
  SINCE JAN 1     MM
  SINCE JUL 1     MM
  SNOW DEPTH      MM

DEGREE DAYS
 HEATING
  YESTERDAY       39                        48     -9       56
  MONTH TO DATE  745                       945   -200     1038
  SINCE DEC 1    745                       945   -200     1038
  SINCE JUL 1   3075                      3435   -360     3298

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1     78                        81     -3      104
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     S (180)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION    SW (240)
  AVERAGE WIND SPEED     3.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    88          1100 AM
 LOWEST     59           300 PM
 AVERAGE    74

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


THE BUTTE MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   29        50      1940
 MINIMUM TEMPERATURE (F)    5       -43      1983


SUNRISE AND SUNSET
DECEMBER 21 2014......SUNRISE   809 AM MST   SUNSET   448 PM MST
DECEMBER 22 2014......SUNRISE   809 AM MST   SUNSET   448 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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