Climatological Report (Monthly)
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CXUS53 KGRR 011650
CLMBIV


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
1143 AM EST MON JAN 1 2018

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

...THE HOLLAND/TULIP CITY MI CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1996 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
HIGHEST            62   12/04        MM      MM       54  12/26
LOWEST            -11   12/30        MM      MM        7  12/19
AVG. MAXIMUM     33.4              36.5    -3.1     33.8
AVG. MINIMUM     20.3              26.1    -5.8     24.6
MEAN             26.8              31.3    -4.5     29.2
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     13               9.2     3.8       12
DAYS MIN <= 32     29              23.7     5.3       26
DAYS MIN <= 0       2               0.1     1.9        0

PRECIPITATION (INCHES)
TOTALS           1.21              2.30   -1.09     1.75
DAILY AVG.       0.04              0.07   -0.03     0.06
DAYS >= .01        16                MM      MM       17
DAYS >= .10         5                MM      MM        6
DAYS >= .50         0                MM      MM        0
DAYS >= 1.00        0                MM      MM        0
GREATEST
 24 HR. TOTAL    0.21   12/12 TO 12/12

DEGREE_DAYS
HEATING TOTAL    1173              1045     128     1102
 SINCE 7/1       2340              2268      72     2000
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        613               693     -80      785
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              10.1
RESULTANT WIND SPEED/DIRECTION   4/256
HIGHEST WIND SPEED/DIRECTION    43/250    DATE  12/05
HIGHEST GUST SPEED/DIRECTION    54/250    DATE  12/05

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY         19

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                5     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                6     SNOW                      10
LIGHT SNOW               20     SLEET                      0
FOG                      21     FOG W/VIS <= 1/4 MILE      7
HAZE                     11

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

$$



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