Climatological Report (Seasonal)
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TTAA00 KGRR 011855


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
1038 AM EST SAT DEC 2 2017

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

...THE MUSKEGON MI CLIMATE SUMMARY FOR THE SEASON, FROM
9/1/2017 TO 11/30/2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1896 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              95   09/06/1954
                        09/01/1953
 LOW              -14   11/25/1950
HIGHEST            92   09/23        85       7       87  09/06
LOWEST             20   11/11        18       2       22  11/22
                        11/10
AVG. MAXIMUM     62.4              58.9     3.5     64.6
AVG. MINIMUM     44.6              43.1     1.5     47.7
MEAN             53.5              51.0     2.5     56.2
DAYS MAX >= 90      3               0.0     3.0        0
DAYS MAX <= 32      1               1.7    -0.7        0
DAYS MIN <= 32     19              16.7     2.3        8
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        17.29   1988
 MINIMUM         2.91   1956
TOTALS          12.61             10.36    2.25    12.18
DAILY AVG.       0.14              0.11    0.03     0.13
DAYS >= .01        33              36.1    -3.1       33
DAYS >= .10        20              20.8    -0.8       21
DAYS >= .50         7               6.6     0.4        5
DAYS >= 1.00        3               2.0     1.0        4
GREATEST
 24 HR. TOTAL    2.80   10/23 TO 10/23

SNOWFALL (INCHES)
RECORDS
 TOTAL           25.7   1995
 24 HR TOTAL     16.0   11/14/1908 TO 11/14/1908
 SNOW DEPTH        16   11/14/1908
TOTALS              T               6.2    -6.2      1.0
SINCE 7/1           T               6.2    -6.2      1.0
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE       7               4.3     2.7        2
DAYS >= 1.0         0               1.7    -1.7        1
GREATEST
 SNOW DEPTH         0   MM                            -1  11/20
 24 HR TOTAL      0.0   10/30 TO 11/01
                        11/09 TO 11/10
                        11/19 TO 11/19

DEGREE_DAYS
HEATING TOTAL    1146              1337    -191      896
 SINCE 7/1       1159              1367    -208       MM
COOLING TOTAL     121                59      62      110
 SINCE 1/1        615               566      49      774

FREEZE DATES
RECORD
 EARLIEST     09/22/1976
 LATEST       06/22/1992
EARLIEST                        10/14
LATEST                          05/04
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.9
RESULTANT WIND SPEED/DIRECTION   2/214
HIGHEST WIND SPEED/DIRECTION    39/220    DATE  10/07
HIGHEST GUST SPEED/DIRECTION    49/200    DATE  11/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR           15
NUMBER OF DAYS PC             39
NUMBER OF DAYS CLOUDY         37

AVERAGE RH (PERCENT)     70

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN               12     RAIN                      20
LIGHT RAIN               45     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                6     SLEET                      1
FOG                      41     FOG W/VIS <= 1/4 MILE      7
HAZE                      5

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

$$

JAM


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