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

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CDUS43 KGRR 210516
CLIGRR


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
116 AM EDT THU SEP 21 2017


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

...THE GRAND RAPIDS MI CLIMATE SUMMARY FOR SEPTEMBER 20 2017...

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


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         87    504 PM  90    1931  71     16       82
  MINIMUM         66    257 AM  33    1956  51     15       59
  AVERAGE         77                        61     16       71

PRECIPITATION (IN)
  YESTERDAY        T             1.75 1957   0.16  -0.16      T
  MONTH TO DATE    0.56                      2.85  -2.29     1.19
  SINCE SEP 1      0.56                      2.85  -2.29     1.19
  SINCE JAN 1     24.88                     27.57  -2.69    32.73

SNOWFALL (IN)
  YESTERDAY        0.0           0.0    MM   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE SEP 1      0.0                       0.0    0.0      0.0
  SINCE JUL 1      0.0                       0.0    0.0      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         5     -5        0
  MONTH TO DATE   63                        59      4        6
  SINCE SEP 1     63                        59      4        6
  SINCE JUL 1     79                        79      0        6

 COOLING
  YESTERDAY       12                         2     10        6
  MONTH TO DATE   50                        57     -7       84
  SINCE SEP 1     50                        57     -7       84
  SINCE JAN 1    622                       682    -60      915
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION  SE (150)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     S (160)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED     6.4


SKY COVER
  POSSIBLE SUNSHINE  79 PERCENT
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           200 AM
 LOWEST     47           100 PM
 AVERAGE    74

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


THE GRAND RAPIDS MI CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   71        92      1908
 MINIMUM TEMPERATURE (F)   51        32      1962


SUNRISE AND SUNSET
SEPTEMBER 21 2017.....SUNRISE   729 AM EDT   SUNSET   741 PM EDT
SEPTEMBER 22 2017.....SUNRISE   730 AM EDT   SUNSET   739 PM EDT


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




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