559 
CDUS45 KMSO 200738
CLIBTM


CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA, MT
137 AM MDT SUN MAY 20 2012


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

...THE BUTTE MT CLIMATE SUMMARY FOR MAY 19 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         60    510 PM  85    1954  62     -2       61
  MINIMUM         24    540 AM  22    2003  35    -11       27
  AVERAGE         42                        49     -7       44

PRECIPITATION (IN)
  YESTERDAY        0.00          1.22 1938   0.07  -0.07     0.00
  MONTH TO DATE    0.29                      1.08  -0.79     0.78
  SINCE OCT 1      4.25                      5.80  -1.55     4.78
  SINCE JAN 1      2.99                      3.91  -0.92     2.98

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

DEGREE DAYS
 HEATING
  YESTERDAY       23                        16      7       21
  MONTH TO DATE  361                       364     -3      402
  SINCE MAR 1   1932                      2186   -254     2362
  SINCE JUL 1   8072                      8755   -683     9034

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE MAR 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    33   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED     5.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    74           500 AM
 LOWEST     23           100 PM
 AVERAGE    49

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


THE BUTTE MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   62        83      1919
 MINIMUM TEMPERATURE (F)   35        23      2003


SUNRISE AND SUNSET
MAY 20 2012...........SUNRISE   552 AM MDT   SUNSET   902 PM MDT
MAY 21 2012...........SUNRISE   551 AM MDT   SUNSET   903 PM MDT


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




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