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000
CXUS53 KGRR 011723
CLMGRR


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
113 PM EDT WED MAY 1 2013

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

...THE GRAND RAPIDS MI CLIMATE SUMMARY FOR THE MONTH OF APRIL 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1892 TO 2013

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            78   04/30        79      -1       74  04/15
LOWEST             22   04/03        21       1       28  04/29
                        04/02
AVG. MAXIMUM     53.5              58.2    -4.7     59.1
AVG. MINIMUM     35.7              37.7    -2.0     37.5
MEAN             44.6              48.0    -3.4     48.3
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.3    -0.3        0
DAYS MIN <= 32      9               8.6     0.4        7
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.29   1909
 MINIMUM         0.39   1942
TOTALS          11.10R             3.35    7.75     3.09
DAILY AVG.       0.37              0.11    0.26     0.10
DAYS >= .01        18              12.7     5.3       11
DAYS >= .10        14               7.3     6.7        6
DAYS >= .50         7               1.9     5.1        3
DAYS >= 1.00        4               0.6     3.4        1
GREATEST
 24 HR. TOTAL    3.94   04/17 TO 04/18           04/15 TO 04/16
                                                          04/28 TO 04/28
                                                          04/10 TO 04/10

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            0.7               1.8    -1.1        T
SINCE 7/1        66.0              74.9    -8.9     51.2
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE       8               2.0     6.0        2
DAYS >= 1.0         0               0.5    -0.5        0
GREATEST
 SNOW DEPTH         T   04/20                          0  MM
 24 HR TOTAL      0.5   04/19 TO 04/19           04/28 TO 04/28
                                                          04/10 TO 04/10
                                                          04/10 TO 04/10

DEGREE_DAYS
HEATING TOTAL     609               518      91      494
 SINCE 7/1       6122              6205     -83     5094
COOLING TOTAL       3                 7      -4        1
 SINCE 1/1          3                 8      -5       27

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

WIND (MPH)
AVERAGE WIND SPEED              11.6
RESULTANT WIND SPEED/DIRECTION   3/199
HIGHEST WIND SPEED/DIRECTION    39/110    DATE  04/17
HIGHEST GUST SPEED/DIRECTION    47/240    DATE  04/19

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   43
AVERAGE SKY COVER           0.70

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               1
HEAVY RAIN               10     RAIN                      14
LIGHT RAIN               18     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       2
LIGHT SNOW                7     SLEET                      2
FOG                      17     FOG W/VIS <= 1/4 MILE      1
HAZE                      1

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

$$

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