Climatological Report (Daily)
Issued by NWS Missoula, MT

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CDUS45 KMSO 160740
CLIBTM


CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA, MT
1239 AM MST SAT DEC 16 2017


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

...THE BUTTE MT CLIMATE SUMMARY FOR DECEMBER 15 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1895 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         33    637 PM  53    1980  29      4       20
  MINIMUM          6    115 AM -27    1967   5      1        4
  AVERAGE         20                        17      3       12

PRECIPITATION (IN)
  YESTERDAY        T             0.30 1947   0.02  -0.02     0.24
  MONTH TO DATE    0.10                      0.25  -0.15     0.32
  SINCE OCT 1      1.01                      1.63  -0.62     3.10
  SINCE JAN 1     11.54                     12.51  -0.97    10.48

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

DEGREE DAYS
 HEATING
  YESTERDAY       45                        48     -3       53
  MONTH TO DATE  643                       705    -62      753
  SINCE DEC 1    643                       705    -62      753
  SINCE JUL 1   3038                      3195   -157     3047

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    129                        81     48       57
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    NW (330)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED     2.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    88           200 AM
 LOWEST     58           700 PM
 AVERAGE    73

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


THE BUTTE MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   29        58      1980
 MINIMUM TEMPERATURE (F)    5       -36      1964


SUNRISE AND SUNSET
DECEMBER 16 2017......SUNRISE   806 AM MST   SUNSET   446 PM MST
DECEMBER 17 2017......SUNRISE   807 AM MST   SUNSET   446 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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