Climatological Report (Monthly)
Issued by NWS

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CXUS55 KTFX 010913
CLMHLN


CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
312 AM MDT FRI SEP 1 2017

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

...THE HELENA MT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1866 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             105   08/24/1969
 LOW               28   08/25/1992
HIGHEST            96   08/28        85      11       98  08/02
LOWEST             47   08/10        47       0       41  08/25
AVG. MAXIMUM     87.1              84.5     2.6     84.3
AVG. MINIMUM     55.0              52.2     2.8     51.8
MEAN             71.0              68.3     2.7     68.0
DAYS MAX >= 90     11               9.5     1.5       10
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.0     0.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         4.23   1974
 MINIMUM            T   1940
TOTALS              TR             1.20   -1.20     0.92
DAYS >= .01         0               7.3    -7.3
DAYS >= .10         0               3.4    -3.4
DAYS >= .50         0               0.4    -0.4
DAYS >= 1.00        0               0.1    -0.1
GREATEST
 24 HR. TOTAL       T   08/24 TO 08/24

SNOWFALL (INCHES)
RECORDS
 TOTAL            6.2   1992
 24 HR TOTAL      6.2   08/22/1992 TO 08/23/1992
TOTALS            0.0               0.3    -0.3      0.0
SINCE 7/1         0.0               0.3    -0.3
SNOWDEPTH AVG.      0
DAYS >= TRACE       0               0.1    -0.1
DAYS >= 1.0         0               0.1    -0.1
GREATEST
 SNOW DEPTH         0   MM
 24 HR TOTAL      0.0   08/31 TO 08/31

DEGREE_DAYS
HEATING TOTAL       2                42     -40       26
 SINCE 7/1          2                69     -67       44
COOLING TOTAL     199               145      54      129
 SINCE 1/1        636               383     253      442
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.4
HIGHEST WIND SPEED/DIRECTION    37/260    DATE  08/13
HIGHEST GUST SPEED/DIRECTION    46/260    DATE  08/13

SKY COVER
AVERAGE SKY COVER           0.10

AVERAGE RH (PERCENT)     37

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                4     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       0     FOG W/VIS <= 1/4 MILE      0
HAZE                     20

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

$$



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