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

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CXUS53 KGRR 011454
CLMGRR


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
1045 AM EDT TUE MAY 1 2018

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

...THE GRAND RAPIDS MI (ASOS) CLIMATE SUMMARY FOR THE MONTH OF APRIL 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1892 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              90   04/29/1899
 LOW                3   04/07/1982
HIGHEST            74   04/23        79      -5       81  04/26
LOWEST             16   04/08        21      -5       27  04/08
AVG. MAXIMUM     49.3              58.2    -8.9     62.1
AVG. MINIMUM     30.8              37.7    -6.9     41.7
MEAN             40.1              48.0    -7.9     51.9
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      1               0.3     0.7        0
DAYS MIN <= 32     20               8.6    11.4        4
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        11.10   2013
 MINIMUM         0.39   1942
TOTALS           2.85              3.35   -0.50     6.27
DAILY AVG.       0.09              0.11   -0.02     0.21
DAYS >= .01        13              12.7     0.3       14
DAYS >= .10         5               7.3    -2.3       10
DAYS >= .50         3               1.9     1.1        5
DAYS >= 1.00        0               0.6    -0.6        2
GREATEST
 24 HR. TOTAL    0.87   04/14 TO 04/14

SNOWFALL (INCHES)
RECORDS
 TOTAL           15.6   1961
 24 HR TOTAL      9.8   04/02/1975 TO 04/03/1975
 SNOW DEPTH        10   04/03/1975
TOTALS            6.0               1.8     4.2      0.4
SINCE 7/1        77.7              74.9     2.8     60.1
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE      13               2.0    11.0        2
DAYS >= 1.0         3               0.5     2.5        0
GREATEST
 SNOW DEPTH         2   04/17                         -1  04/06
 24 HR TOTAL      1.6   04/04 TO 04/04

DEGREE_DAYS
HEATING TOTAL     740               518     222      391
 SINCE 7/1       6339              6205     134     5366
COOLING TOTAL       0                 7      -7        5
 SINCE 1/1          0                 8      -8        5

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

WIND (MPH)
AVERAGE WIND SPEED              10.3
RESULTANT WIND SPEED/DIRECTION   3/307
HIGHEST WIND SPEED/DIRECTION    37/070    DATE  04/14
HIGHEST GUST SPEED/DIRECTION    48/080    DATE  04/14

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   54
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            5
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY         13

AVERAGE RH (PERCENT)     63

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       3
LIGHT RAIN               10     FREEZING RAIN              1
LT FREEZING RAIN          3     HAIL                       1
HEAVY SNOW                0     SNOW                       5
LIGHT SNOW               12     SLEET                      3
FOG                      16     FOG W/VIS <= 1/4 MILE      2
HAZE                      4

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

$$

63




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