Climatological Report (Monthly)
Issued by NWS Missoula, MT

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CXUS55 KMSO 011327
CLMBTM


CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA, MT
727 AM MDT SAT JUN 1 2013

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

...THE BUTTE MT CLIMATE SUMMARY FOR THE MONTH OF MAY 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1895 TO 2013

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              90   05/28/1919
 LOW                9   05/01/1975
                        05/08/1965
HIGHEST            81   05/13        MM      MM       MM
                        05/12
LOWEST             15   05/02        MM      MM       MM
AVG. MAXIMUM     61.5              61.1     0.4       MM
AVG. MINIMUM     35.3              34.0     1.3       MM
MEAN             48.4              47.6     0.8       MM
DAYS MAX >= 90      0               0.0     0.0       MM
DAYS MAX <= 32      0               0.0     0.0       MM
DAYS MIN <= 32      9              11.6    -2.6       MM
DAYS MIN <= 0       0               0.0     0.0       MM

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         5.84   1927
 MINIMUM         0.09   1934
TOTALS           2.41              2.08    0.33       MM
DAILY AVG.       0.08              0.07    0.01       MM
DAYS >= .01        16              12.6     3.4       MM
DAYS >= .10         8               6.2     1.8       MM
DAYS >= .50         1               0.8     0.2       MM
DAYS >= 1.00        0               0.2    -0.2       MM
GREATEST
 24 HR. TOTAL    1.11   05/22 TO 05/23                MM

DEGREE_DAYS
HEATING TOTAL     507               541     -34
 SINCE 7/1       8787              8932    -145
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.8
HIGHEST WIND SPEED/DIRECTION    32/090    DATE  05/22
HIGHEST GUST SPEED/DIRECTION    45/020    DATE  05/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           14
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY          8

AVERAGE RH (PERCENT)     60

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       7
LIGHT RAIN               18     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                3     SLEET                      0
FOG                      10     FOG W/VIS <= 1/4 MILE      0
HAZE                      0

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

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