Climatological Report (Monthly)
Issued by NWS Missoula, MT

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CXUS55 KMSO 021324
CLMBTM


CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA, MT
724 AM MDT MON OCT 2 2017

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

...THE BUTTE MT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 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              93   09/15/2000
                        09/05/1998
                        09/04/1998
 LOW                3   09/24/1926
HIGHEST            92   09/03        MM      MM       83
LOWEST             27   09/25        MM      MM       27
                        09/24
AVG. MAXIMUM     65.9              68.3    -2.4     64.2
AVG. MINIMUM     36.7              35.6     1.1     37.4
MEAN             51.3              51.9    -0.6     50.8
DAYS MAX >= 90      1               0.2     0.8        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32     11               8.6     2.4        5
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         3.54   1947
 MINIMUM         0.00   1904
TOTALS           1.76              1.00    0.76     1.32
DAILY AVG.       0.06              0.03    0.03     0.04
DAYS >= .01        12               7.2     4.8       12
DAYS >= .10         5               3.0     2.0        6
DAYS >= .50         1               0.4     0.6        0
DAYS >= 1.00        0               0.0     0.0        0
GREATEST
 24 HR. TOTAL    0.68   09/14 TO 09/15              0.40

DEGREE_DAYS
HEATING TOTAL     408               393      15
 SINCE 7/1        481               621    -140
COOLING TOTAL       5                 2       3
 SINCE 1/1        129                81      48
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              4.6
HIGHEST WIND SPEED/DIRECTION    26/250    DATE  09/09
HIGHEST GUST SPEED/DIRECTION    35/260    DATE  09/09

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           14
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     61

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       4
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       2
LIGHT SNOW                5     SLEET                      0
FOG                       9     FOG W/VIS <= 1/4 MILE      0
HAZE                     11

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

$$


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