Climatological Report (Monthly)
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CXUS55 KTFX 011805
CLMGTF


CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
1202 PM MDT TUE SEP 1 2015

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

...THE GREAT FALLS MT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1886 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH             106   08/24/1969
                        08/05/1961
 LOW               30   08/24/1992
HIGHEST           100   08/14        84      16       95
LOWEST             39   08/23        48      -9       44
                        08/21
AVG. MAXIMUM     85.6              82.3     3.3     81.3
AVG. MINIMUM     51.6              50.4     1.2     53.3
MEAN             68.6              66.3     2.3     67.3
DAYS MAX >= 90     13               6.9     6.1
DAYS MAX <= 32      0               0.0     0.0
DAYS MIN <= 32      0               0.1    -0.1
DAYS MIN <= 0       0               0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         5.34   1933
 MINIMUM         0.03   1969
TOTALS           0.38              1.57   -1.19     4.39
DAYS >= .01         5               7.9    -2.9
DAYS >= .10         2               3.6    -1.6
DAYS >= .50         0               1.0    -1.0
DAYS >= 1.00        0               0.3    -0.3
GREATEST
 24 HR. TOTAL    0.16   08/14 TO 08/14
                        08/14 TO 08/15

SNOWFALL (INCHES)
RECORDS
 TOTAL            8.3   1992
 24 HR TOTAL      8.3   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      0.0
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      49                71     -22       65
 SINCE 7/1         96               121     -25       70
COOLING TOTAL     167               113      54      145
 SINCE 1/1        391               276     115      324
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              9.8
HIGHEST WIND SPEED/DIRECTION    47/250    DATE  08/29
HIGHEST GUST SPEED/DIRECTION    59/260    DATE  08/29

SKY COVER
AVERAGE SKY COVER           0.20

AVERAGE RH (PERCENT)     43

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       2
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       3     FOG W/VIS <= 1/4 MILE      0
HAZE                     12

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

&&

THE GENERALLY WARMER THAN NORMAL CONDITIONS EXPERIENCED OVER THE
SUMMER ACROSS CENTRAL MONTANA CONTINUED INTO AUGUST. TEMPERATURES
WERE ONCE AGAIN ABOVE NORMAL. EVEN WITH THE WARMER
TEMPERATURES...THE METEOROLOGICAL SUMMER (JUN-AUG) WAS ONLY THE 25TH
WARMEST ON RECORD AT GREAT FALLS. LIKE JUN AND JULY...AUGUST CAME IN
WITH BELOW NORMAL PRECIPITATION AT GREAT FALLS...MAKING IT THE 8TH
DRIEST SUMMER ON RECORD. THE WARMER AND DRIER CONDITIONS IN AUGUST
CAN BE ATTRIBUTED TO AN UPPER LEVEL HIGH THAT REPEATEDLY BUILT BACK
INTO THE WESTERN US. THIS ALONG WITH SEVERAL FIRES IN THE REGION
LEAD TO SEVERAL DAYS WITH REDUCED VISIBILITY AND LOWER AIR QUALITY
DUE TO SMOKE. INTERESTINGLY...THE NUMBER OF HOURS OF REDUCED
VISIBILITY AT GREAT FALLS DUE TO SMOKE WAS THE HIGHEST SINCE 1980.
$$




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