Climatological Report (Monthly)
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CXUS55 KTFX 010915
CLMHLN


CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
314 AM MDT MON MAY 1 2017

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

...THE HELENA MT CLIMATE SUMMARY FOR THE MONTH OF APRIL 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              86   04/29/1992
                        04/25/1910
 LOW              -10   04/01/1936
HIGHEST            71   04/06        61      10       81  04/21
LOWEST             22   04/11        28      -6       26  04/16
AVG. MAXIMUM     57.9              57.8     0.1     62.4
AVG. MINIMUM     34.0              32.1     1.9     37.1
MEAN             45.9              44.9     1.0     49.8
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.3    -0.3        0
DAYS MIN <= 32     11              14.2    -3.2        7
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         3.00   1975
 MINIMUM         0.01   1919
TOTALS           0.72              0.98   -0.26     1.01
DAYS >= .01        12               8.7     3.3
DAYS >= .10         2               3.1    -1.1
DAYS >= .50         0               0.3    -0.3
DAYS >= 1.00        0               0.0     0.0
GREATEST
 24 HR. TOTAL    0.31   04/13 TO 04/13

SNOWFALL (INCHES)
RECORDS
 TOTAL           22.2   1880
 24 HR TOTAL     12.9   04/23/1960 TO 04/23/1960
TOTALS              T               3.7    -3.7        T
SINCE 7/1        51.5              37.2    14.3
SNOWDEPTH AVG.      0
DAYS >= TRACE       4               2.9     1.1
DAYS >= 1.0         0               1.3    -1.3
GREATEST
 SNOW DEPTH         0   MM
 24 HR TOTAL        T   04/10 TO 04/10

DEGREE_DAYS
HEATING TOTAL     564               602     -38      450
 SINCE 7/1       7077              7054      23     6149
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.4
HIGHEST WIND SPEED/DIRECTION    35/260    DATE  04/10
HIGHEST GUST SPEED/DIRECTION    42/260    DATE  04/30

SKY COVER
AVERAGE SKY COVER           0.40

AVERAGE RH (PERCENT)     56

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

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

$$


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