Climatological Report (Annual)
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CXUS53 KGRR 011846
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TTAA00 KGRR 011837


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
134 PM EST SUN JAN 1 2012

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

...THE MUSKEGON MI CLIMATE SUMMARY FOR THE YEAR OF 2011...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1895 TO 2011

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              99   08/03/1964
                        07/30/1913
 LOW              -30   02/11/1899
HIGHEST            94   07/19        MM      MM       92  08/20
LOWEST             -8   01/23        MM      MM        2  01/30
AVG. MAXIMUM     57.9              56.5     1.4     58.6
AVG. MINIMUM     41.5              40.6     0.9     42.7
MEAN             49.7              48.6     1.1     50.6
DAYS MAX >= 90      6               1.8     4.2        4
DAYS MAX <= 32     43              46.1    -3.1       59
DAYS MIN <= 32    121             122.9    -1.9      129
DAYS MIN <= 0       1               1.9    -0.9        0

PRECIPITATION (INCHES)
TOTALS          41.89             33.49    8.40    30.69
DAILY AVG.       0.12              0.09    0.03     0.08
GREATEST
 24 HR. TOTAL    4.29   MM

SNOWFALL (INCHES)
TOTALS           92.8              93.7    -0.9     53.8
SINCE 7/1         1.9
SNOWDEPTH AVG.      2                MM      MM        1
DAYS >= 1.0        21              27.9    -6.9       14
GREATEST
 SNOW DEPTH        26   02/07                         11  02/27
                                                          02/25
                                                          01/13
 24 HR TOTAL     10.7   MM

DEGREE_DAYS
HEATING TOTAL    6238              6559    -321     5991
 SINCE 7/1         MM              2446      MM     2276
COOLING TOTAL     752               565     187      893
 SINCE 1/1        752               566     186      893
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.0
HIGHEST WIND SPEED/DIRECTION    36/190    DATE  11/18
HIGHEST GUST SPEED/DIRECTION    53/290    DATE  07/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR          154
NUMBER OF DAYS PC             98
NUMBER OF DAYS CLOUDY        113

AVERAGE RH (PERCENT)     69

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN               42     RAIN                      61
LIGHT RAIN              136     FREEZING RAIN              1
LT FREEZING RAIN          7     HAIL                       0
HEAVY SNOW                7     SNOW                      20
LIGHT SNOW               63     SLEET                      4
FOG                     191     FOG W/VIS <= 1/4 MILE     27
HAZE                     93

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

$$

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