Climatological Report (Annual)
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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
820 PM EST FRI JAN 3 2014

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

...THE MUSKEGON MI CLIMATE SUMMARY FOR THE YEAR OF 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1895 TO 2014

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              99   07/06/2012
                        08/03/1964
                        07/30/1913
 LOW              -30   02/11/1899
HIGHEST            92   07/18        MM      MM       99  07/06
                        07/15
LOWEST              0   02/17        MM      MM        9  01/20
AVG. MAXIMUM     56.4              56.5    -0.1     61.4
AVG. MINIMUM     40.1              40.6    -0.5     43.8
MEAN             48.3              48.6    -0.3     52.6
DAYS MAX >= 90      5               1.8     3.2       14
DAYS MAX <= 32     56              46.1     9.9       20
DAYS MIN <= 32    136             122.9    13.1      103
DAYS MIN <= 0       1               1.9    -0.9        0

PRECIPITATION (INCHES)
TOTALS          43.76             33.49   10.27    31.59
DAILY AVG.       0.12              0.09    0.03     0.09
GREATEST
 24 HR. TOTAL    2.68   MM

SNOWFALL (INCHES)
TOTALS          138.5              93.7    44.8     62.0
SINCE 7/1        48.1
SNOWDEPTH AVG.      2                MM      MM        0
DAYS >= 1.0        40              27.9    12.1       19
GREATEST
 SNOW DEPTH        15   12/27                         16  01/15
                        02/09
                        02/08
 24 HR TOTAL      9.7   MM

DEGREE_DAYS
HEATING TOTAL    6589              6559      30     5378
 SINCE 7/1       2464              2446      18     2199
COOLING TOTAL     626               565      61      925
 SINCE 1/1        626               566      60      925
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.0
HIGHEST WIND SPEED/DIRECTION    43/250    DATE  11/17
HIGHEST GUST SPEED/DIRECTION    54/250    DATE  11/17

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR           91
NUMBER OF DAYS PC            140
NUMBER OF DAYS CLOUDY        134

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               1
HEAVY RAIN               33     RAIN                      51
LIGHT RAIN              134     FREEZING RAIN              0
LT FREEZING RAIN         12     HAIL                       0
HEAVY SNOW               19     SNOW                      33
LIGHT SNOW               94     SLEET                      0
FOG                     181     FOG W/VIS <= 1/4 MILE     36
HAZE                     86

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

$$

JAM





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