Climatological Report (Monthly)
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CXUS55 KTFX 011219
CLMHLN


CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
616 AM MDT MON SEP 1 2014

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

...THE HELENA MT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1866 TO 2014

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   08/11        85      11       97  08/16
LOWEST             43   08/25        47      -4       51  08/12
AVG. MAXIMUM     82.9              84.5    -1.6     87.0
AVG. MINIMUM     54.9              52.2     2.7     55.2
MEAN             68.9              68.3     0.6     71.1
DAYS MAX >= 90     10               9.5     0.5       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           2.11              1.20    0.91     1.71
DAYS >= .01        11               7.3     3.7
DAYS >= .10         4               3.4     0.6
DAYS >= .50         1               0.4     0.6
DAYS >= 1.00        1               0.1     0.9
GREATEST
 24 HR. TOTAL    1.26   08/22 TO 08/23

SNOWFALL (INCHES)
RECORDS
 TOTAL             MM   5
 24 HR TOTAL       MM
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      47                42       5        3
 SINCE 7/1         47                69     -22        3
COOLING TOTAL     177               145      32      201
 SINCE 1/1        448               383      65      509
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.7
HIGHEST WIND SPEED/DIRECTION    33/250    DATE  08/12
HIGHEST GUST SPEED/DIRECTION    44/260    DATE  08/12

SKY COVER
AVERAGE SKY COVER           0.20

AVERAGE RH (PERCENT)     53

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

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

$$

NEW PRECIPITATION RECORDS WERE SET IN CENTRAL MONTANA DURING AUGUST
AS A SERIES OF SLOW MOVING UPPER LEVEL LOWS DREW MOISTURE INTO THE
REGION FROM THE SOUTH AND SOUTHWEST. MONTHLY HIGH TEMPERATURES WERE
SLIGHTLY COOLER THAN AVERAGE WHILE MINIMUM TEMPERATURES WERE JUST
ABOVE AVERAGE. THE MOST SIGNIFICANT RAIN EVENT OF THE MONTH OCCURRED
FROM THE 22ND TO THE 25TH WHEN A CUT-OFF LOW BECAME NEARLY
STATIONARY OVER SOUTHERN IDAHO BEFORE DRIFTING THROUGH SOUTHEAST
MONTANA. THE 1.16 INCHES OF PRECIPITATION THAT FELL AT HELENA ON AUG
23RD SET A NEW DAILY RECORD.

$$



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