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

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CXUS53 KGRR 011651
CLMGRR


CLIMATE REPORT...CORRECTED TYPOS AND FORMATTING
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
1150 AM EST SUN NOV 1 2009

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

...THE GRAND RAPIDS MI CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2009...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1892 TO 2009

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              89   10/01/1897
 LOW               18   10/30/1988
                        10/21/1974
HIGHEST            68   10/21        79     -11       82  10/12
LOWEST             27   10/18        26       1       27  10/30
AVG. MAXIMUM     55.6              59.6    -4.0     59.7
AVG. MINIMUM     40.9              40.2     0.7     40.0
MEAN             48.3              49.9    -1.6     49.9
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      4               5.7    -1.7        5
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.32   1954
 MINIMUM         0.03   1952
TOTALS           7.64              2.80    4.84     2.71
DAILY AVG.       0.25              0.09    0.16     0.09
DAYS >= .01        16              11.3     4.7       12
DAYS >= .10        11               5.9     5.1        8
DAYS >= .50         4               1.9     2.1        2
DAYS >= 1.00        2               0.5     1.5        0
GREATEST
 24 HR. TOTAL    2.83   10/30 TO 10/30

SNOWFALL (INCHES)
RECORDS
 TOTAL            8.4   1967
 24 HR TOTAL      8.4   10/26/1967 TO 10/27/1967
 SNOW DEPTH         5   10/27/1967
TOTALS              T               0.6    -0.6        T
 LIQUID EQUIV      MM              0.10      MM       MM
SINCE 7/1           T               0.6    -0.6        T
 LIQUID 7/1        MM              0.10      MM       MM
SNOWDEPTH AVG.      0                 0       0        0
DAYS >= TRACE       1               0.6     0.4        1
DAYS >= 1.0         0               0.2    -0.2        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL        T   10/06 TO 10/06

DEGREE_DAYS
HEATING TOTAL     513               471      42      468
 SINCE 7/1        646               664     -18      534
COOLING TOTAL       0                 5      -5        5
 SINCE 1/1        455               613    -158      635

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

WIND (MPH)
AVERAGE WIND SPEED              8.7
RESULTANT WIND SPEED/DIRECTION   2/202
HIGHEST WIND SPEED/DIRECTION    38/280    DATE  10/07
HIGHEST GUST SPEED/DIRECTION    51/260    DATE  10/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   22

NUMBER OF DAYS FAIR            0
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY         22

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                      10
LIGHT RAIN               23     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       1
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      22     FOG W/VIS <= 1/4 MILE      2
HAZE                      8

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

$$







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