Climatological Report (Monthly)
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CXUS55 KTFX 011834
CLMGTF


CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
1212 PM MDT MON JUN 1 2015

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

...THE GREAT FALLS MT CLIMATE SUMMARY FOR THE MONTH OF MAY 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             100   05/28/1919
 LOW               12   05/01/2009
HIGHEST            80   05/31        70      10       85
LOWEST             25   05/09        37     -12       27
AVG. MAXIMUM     62.5              64.8    -2.3     65.0
AVG. MINIMUM     38.9              38.6     0.3     38.5
MEAN             50.7              51.7    -1.0     51.7
DAYS MAX >= 90      0               0.1    -0.1
DAYS MAX <= 32      0               0.0     0.0
DAYS MIN <= 32      7               5.6     1.4
DAYS MIN <= 0       0               0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.13   1953
 MINIMUM         0.21   1895
TOTALS           3.42              2.42    1.00     1.62
DAYS >= .01        12              11.7     0.3
DAYS >= .10         9               5.8     3.2
DAYS >= .50         1               1.2    -0.2
DAYS >= 1.00        1               0.3     0.7
GREATEST
 24 HR. TOTAL    1.28   05/16 TO 05/17

SNOWFALL (INCHES)
RECORDS
 TOTAL           11.6   1989
 24 HR TOTAL       MM
TOTALS              T               2.7    -2.7      3.7
SINCE 7/1        57.9              63.2    -5.3     76.4
SNOWDEPTH AVG.      0
DAYS >= TRACE       3               1.6     1.4
DAYS >= 1.0         0               0.8    -0.8
GREATEST
 SNOW DEPTH         0   MM
 24 HR TOTAL        T   05/30 TO 05/30

DEGREE_DAYS
HEATING TOTAL     437               418      19      404
 SINCE 7/1       6848              7535    -687     7788
COOLING TOTAL       0                 6      -6        0
 SINCE 1/1          0                 7      -7        0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              8.3
HIGHEST WIND SPEED/DIRECTION    32/250    DATE  05/01
HIGHEST GUST SPEED/DIRECTION    44/230    DATE  05/01

SKY COVER
AVERAGE SKY COVER           0.50

AVERAGE RH (PERCENT)     63

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       7
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       2
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      5
HAZE                      1

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

$$

AFTER A DRY START TO THE MONTH...RAINFALL PICKED UP DURING THE 2ND
HALF OF MAY IN GREAT FALLS...WITH A MONTHLY TOTAL OF 3.42 INCHES.
THIS RESULTED IN THE 23RD WETTEST MAY ON RECORD. THE AVERAGE
TEMPERATURE FOR THE MONTH WAS A BIT COOLER THAN NORMAL...AVERAGING
ABOUT 1 DEGREE COOLER THAN NORMAL.




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