Climatological Report (Monthly)
Issued by NWS Missoula, MT

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000
CXUS55 KMSO 011247
CLMBTM


CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA, MT
646 AM MDT THU JUN 1 2017

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

...THE BUTTE MT CLIMATE SUMMARY FOR THE MONTH OF MAY 2017...

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

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   05/31        MM      MM       75
LOWEST             23   05/14        MM      MM       25
                        05/03
AVG. MAXIMUM     63.4              61.1     2.3     59.3
AVG. MINIMUM     33.4              34.0    -0.6     34.2
MEAN             48.4              47.6     0.8     46.7
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32     15              11.6     3.4       12
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         5.84   1927
 MINIMUM         0.09   1934
TOTALS           1.59              2.08   -0.49     1.45
DAILY AVG.       0.05              0.07   -0.02     0.05
DAYS >= .01        10              12.6    -2.6       10
DAYS >= .10         4               6.2    -2.2        5
DAYS >= .50         2               0.8     1.2        0
DAYS >= 1.00        0               0.2    -0.2        0
GREATEST
 24 HR. TOTAL    1.05   05/16 TO 05/17              0.33

DEGREE_DAYS
HEATING TOTAL     505               541     -36
 SINCE 7/1       8887              8932     -45
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.2
HIGHEST WIND SPEED/DIRECTION    46/190    DATE  05/06
HIGHEST GUST SPEED/DIRECTION    56/190    DATE  05/06

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           15
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     58

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       4
LIGHT RAIN               17     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       2
LIGHT SNOW                5     SLEET                      0
FOG                       6     FOG W/VIS <= 1/4 MILE      1
HAZE                      5

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

$$



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