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

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CXUS53 KGRR 012210
CLSGRR

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
510 PM EST WED MAR 1 2017

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

...THE GRAND RAPIDS MI (ASOS) CLIMATE SUMMARY FOR THE SEASON, FROM
12/1/2016 TO 2/28/2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1892 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              69   12/05/2001
                        02/11/1999
 LOW              -24   02/14/1899
                        02/13/1899
HIGHEST            66   02/22        53      13       61  02/19
                                                          12/13
LOWEST              2   01/06        -6       8        1  02/14
AVG. MAXIMUM     36.4              33.1     3.3     37.9
AVG. MINIMUM     24.4              20.5     3.9     25.3
MEAN             30.4              26.8     3.6     31.6
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     29              41.2   -12.2       30
DAYS MIN <= 32     64              77.4   -13.4       70
DAYS MIN <= 0       0               3.8    -3.8        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        13.78   1898
 MINIMUM         2.08   1987
TOTALS           8.52              6.38    2.14     8.26
DAILY AVG.       0.09              0.07    0.02     0.09
DAYS >= .01        52              44.2     7.8       46
DAYS >= .10        27              17.8     9.2       18
DAYS >= .50         5               2.7     2.3        4
DAYS >= 1.00        0               0.6    -0.6        1
GREATEST
 24 HR. TOTAL    0.97   01/16 TO 01/17

SNOWFALL (INCHES)
RECORDS
 TOTAL          105.6   2014
 24 HR TOTAL     16.1   01/26/1978 TO 01/26/1978
 SNOW DEPTH        27   01/27/1978
TOTALS           54.2              57.5    -3.3     38.1
SINCE 7/1        55.0              64.8    -9.8     41.6
SNOWDEPTH AVG.      2                 4      -2        1
DAYS >= TRACE      53              38.9    14.1       50
DAYS >= 1.0        18              18.1    -0.1       11
GREATEST
 SNOW DEPTH         9   12/19                         10  02/25
                        12/12
                        12/17
 24 HR TOTAL      8.9   12/11 TO 12/11

DEGREE_DAYS
HEATING TOTAL    3106              3439    -333     3019
 SINCE 7/1         MM              4777      MM       MM
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0

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

WIND (MPH)
AVERAGE WIND SPEED              10.7
RESULTANT WIND SPEED/DIRECTION   5/247
HIGHEST WIND SPEED/DIRECTION    41/250    DATE  01/10
HIGHEST GUST SPEED/DIRECTION    55/250    DATE  01/10

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   20
AVERAGE SKY COVER           0.80
NUMBER OF DAYS FAIR            5
NUMBER OF DAYS PC             21
NUMBER OF DAYS CLOUDY         64

AVERAGE RH (PERCENT)     74

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               4
HEAVY RAIN                5     RAIN                      11
LIGHT RAIN               27     FREEZING RAIN              1
LT FREEZING RAIN          5     HAIL                       0
HEAVY SNOW                6     SNOW                      21
LIGHT SNOW               54     SLEET                      1
FOG                      61     FOG W/VIS <= 1/4 MILE     12
HAZE                     39

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

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