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CDUS45 KMSO 220739
CLIBTM


CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA, MT
1238 AM MST SAT DEC 22 2012


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

...THE BUTTE MT CLIMATE SUMMARY FOR DECEMBER 21 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1895 TO 2012


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         32    257 PM  50    1940  29      3       26
  MINIMUM          6    426 AM -43    1983   5      1       -3
  AVERAGE         19                        17      2       12

PRECIPITATION (IN)
  YESTERDAY        0.00          0.24 1988   0.02  -0.02     0.04
  MONTH TO DATE    0.24                      0.35  -0.11     0.09
  SINCE OCT 1      1.57                      1.73  -0.16     1.06
  SINCE JAN 1      9.00                     12.61  -3.61    11.63

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

DEGREE DAYS
 HEATING
  YESTERDAY       46                        48     -2       53
  MONTH TO DATE  903                       993    -90     1007
  SINCE DEC 1    903                       993    -90     1007
  SINCE JUL 1   3165                      3483   -318     3309

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    121                        81     40       48
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION     S (170)
  HIGHEST GUST SPEED    13   HIGHEST GUST DIRECTION     S (170)
  AVERAGE WIND SPEED     0.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    80          1200 AM
 LOWEST     39           300 PM
 AVERAGE    60

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


THE BUTTE MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   29        53      1933
 MINIMUM TEMPERATURE (F)    5       -44      1990


SUNRISE AND SUNSET
DECEMBER 22 2012......SUNRISE   810 AM MST   SUNSET   448 PM MST
DECEMBER 23 2012......SUNRISE   810 AM MST   SUNSET   449 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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