Climatological Report (Monthly)
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CXUS55 KTFX 021257
CLMGTF


CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
647 AM MDT SAT MAY 2 2015

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

...THE GREAT FALLS MT CLIMATE SUMMARY FOR THE MONTH OF APRIL 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              89   04/20/1980
 LOW              -10   04/02/1936
HIGHEST            77   04/29        60      17       70
LOWEST             20   04/08        27      -7        6
                        04/03
AVG. MAXIMUM     58.5              55.6     2.9     56.5
AVG. MINIMUM     29.9              30.5    -0.6     29.9
MEAN             44.2              43.1     1.1     43.2
DAYS MAX >= 90      0               0.0     0.0
DAYS MAX <= 32      0               0.9    -0.9
DAYS MIN <= 32     22              17.6     4.4
DAYS MIN <= 0       0               0.2    -0.2

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         4.63   1975
 MINIMUM         0.05   1981
TOTALS           0.89              1.42   -0.53     1.76
DAYS >= .01         5               9.4    -4.4
DAYS >= .10         4               3.9     0.1
DAYS >= .50         0               0.7    -0.7
DAYS >= 1.00        0               0.1    -0.1
GREATEST
 24 HR. TOTAL    0.52   04/14 TO 04/15

SNOWFALL (INCHES)
RECORDS
 TOTAL           35.4   2009
                        1967
 24 HR TOTAL       MM
TOTALS            0.8               8.6    -7.8      2.4
SINCE 7/1        57.9              60.5    -2.6     72.7
SNOWDEPTH AVG.      0
DAYS >= TRACE       5               4.5     0.5
DAYS >= 1.0         0               2.3    -2.3
GREATEST
 SNOW DEPTH         1   04/15
 24 HR TOTAL      0.4   MM

DEGREE_DAYS
HEATING TOTAL     617               659     -42      646
 SINCE 7/1       6411              7117    -706     7384
COOLING TOTAL       0                 1      -1        0
 SINCE 1/1          0                 1      -1        0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              10.7
HIGHEST WIND SPEED/DIRECTION    39/260    DATE  04/11
HIGHEST GUST SPEED/DIRECTION    48/240    DATE  04/11

SKY COVER
AVERAGE SKY COVER           0.30

AVERAGE RH (PERCENT)     53

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       3
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                5     SLEET                      0
FOG                       6     FOG W/VIS <= 1/4 MILE      1
HAZE                      1

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

&&

SUMMARY...THE OVERALL UPPER LEVEL PATTERN TURNED MORE ACTIVE ACROSS
THE NORTHWESTERN U.S. IN APRIL. THIS MEANT MORE PRECIPITATION FOR
MANY LOCATIONS ACROSS CENTRAL AND SOUTHWEST MONTANA COMPARED TO WHAT
FELL IN MARCH. HOWEVER...EVEN WITH MORE PRECIPITATION THAN
MARCH...APRIL STILL CAME IN BELOW NORMAL AT GREAT FALLS.
PRECIPITATION FOR THE MONTH IN GREAT FALLS WAS 0.53 INCHES BELOW
NORMAL. THE AVERAGE TEMPERATURE WAS 1.1 DEGREES ABOVE NORMAL.

$$




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