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Climatological Report (Seasonal)
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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
249 PM EST SAT MAR 2 2013

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

...THE MUSKEGON MI CLIMATE SUMMARY FOR THE SEASON, FROM
12/1/2012 TO 2/28/2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1895 TO 2013

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              67   02/11/1999
 LOW              -30   02/11/1899
HIGHEST            66   12/03        52      14       56  01/11
LOWEST              0   02/17                 1        9  01/20
AVG. MAXIMUM     36.7              33.0     3.7     39.4
AVG. MINIMUM     23.1              22.2     0.9     27.5
MEAN             29.9              27.6     2.3     33.5
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     32              39.5    -7.5       15
DAYS MIN <= 32     74              75.1    -1.1       64
DAYS MIN <= 0       1               1.8    -0.8        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        13.42   2009
 MINIMUM         1.38   2003
TOTALS          12.48              6.41    6.07     7.30
DAILY AVG.       0.14              0.07    0.07     0.09
DAYS >= .01        55              43.6    11.4       39
DAYS >= .10        32              18.3    13.7       19
DAYS >= .50         6               2.5     3.5        4
DAYS >= 1.00        2               0.5     1.5        0
GREATEST
 24 HR. TOTAL    2.68   MM

SNOWFALL (INCHES)
RECORDS
 TOTAL          140.6   1977
TOTALS           92.1              76.2    15.9     50.0
SINCE 7/1        92.9
SNOWDEPTH AVG.      3                 5      -2        1
DAYS >= 1.0        23              22.9     0.1
GREATEST
 SNOW DEPTH        15   02/09                         16  01/15
                        02/08
 24 HR TOTAL      9.7   MM

DEGREE_DAYS
HEATING TOTAL    3122              3364    -242     2851
 SINCE 7/1         MM              4732      MM       MM
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0

FREEZE DATES
EARLIEST                        10/14
LATEST                          05/04
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              10.3
HIGHEST WIND SPEED/DIRECTION    37/290    DATE  01/19
HIGHEST GUST SPEED/DIRECTION    56/330    DATE  12/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.80
NUMBER OF DAYS FAIR            9
NUMBER OF DAYS PC             28
NUMBER OF DAYS CLOUDY         53

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               2
HEAVY RAIN                2     RAIN                       7
LIGHT RAIN               24     FREEZING RAIN              1
LT FREEZING RAIN          7     HAIL                       0
HEAVY SNOW               12     SNOW                      20
LIGHT SNOW               54     SLEET                      0
FOG                      56     FOG W/VIS <= 1/4 MILE     13
HAZE                     32

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

$$

JAM
National Weather Service National Headquarters
