Climatological Report (Seasonal)
Issued by NWS Grand Rapids, MI

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CXUS53 KGRR 012145
CLSGRR

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TTAA00 KGRR 012144


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
431 PM EST THU DEC 1 2016

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

...THE GRAND RAPIDS MI (ASOS) CLIMATE SUMMARY FOR THE SEASON, FROM
9/1/2016 TO 11/30/2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1892 TO 2016

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              98   09/02/1913
                        09/16/1899
 LOW              -10   11/25/1950
HIGHEST            90   09/06        87       3       89  09/06
                                                          09/02
LOWEST             21   11/22        16       5       19  11/29
                                                          11/22
AVG. MAXIMUM     64.4              60.2     4.2     64.5
AVG. MINIMUM     46.6              42.5     4.1     45.3
MEAN             55.5              51.3     4.2     54.9
DAYS MAX >= 90      1               0.3     0.7        0
DAYS MAX <= 32      1               1.8    -0.8        1
DAYS MIN <= 32      6              18.0   -12.0       14
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        18.11   1911
 MINIMUM         2.59   1956
TOTALS          11.79             11.05    0.74     8.14
DAILY AVG.       0.13              0.12    0.01     0.09
DAYS >= .01        30              35.7    -5.7       31
DAYS >= .10        21              21.0     0.0       18
DAYS >= .50         6               7.1    -1.1        5
DAYS >= 1.00        4               2.3     1.7        0
GREATEST
 24 HR. TOTAL    1.78   10/16 TO 10/16

SNOWFALL (INCHES)
RECORDS
 TOTAL           31.0   2014
 24 HR TOTAL     10.4   11/03/1991 TO 11/03/1991
 SNOW DEPTH        11   11/21/2000
                        11/07/1951
TOTALS            0.8               7.3    -6.5      3.5
SINCE 7/1         0.8               7.3    -6.5      3.5
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE       3               4.7    -1.7        8
DAYS >= 1.0         0               2.2    -2.2        1
GREATEST
 SNOW DEPTH         T   11/20                          3  11/22
 24 HR TOTAL      0.8   11/19 TO 11/19

DEGREE_DAYS
HEATING TOTAL     948              1317    -369     1029
 SINCE 7/1         MM              1338      MM       MM
COOLING TOTAL     105                74      31      135
 SINCE 1/1        936               699     237      642

FREEZE DATES
RECORD
 EARLIEST     09/03/1946
 LATEST       06/04/1945
EARLIEST                        10/13
LATEST                          05/02
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.6
RESULTANT WIND SPEED/DIRECTION   2/214
HIGHEST WIND SPEED/DIRECTION    35/160    DATE  11/28
HIGHEST GUST SPEED/DIRECTION    46/300    DATE  09/10

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   44
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR           21
NUMBER OF DAYS PC             42
NUMBER OF DAYS CLOUDY         28

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             10     MIXED PRECIP               0
HEAVY RAIN               11     RAIN                      20
LIGHT RAIN               44     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                3     SLEET                      1
FOG                      52     FOG W/VIS <= 1/4 MILE     12
HAZE                     22

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

$$



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