Climatological Report (Annual)
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000
CXUS53 KGRR 090133 CCA
CLAJXN

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
934 PM EST TUE JAN 2 2018

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

...THE JACKSON MI CLIMATE SUMMARY FOR THE YEAR OF 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1944 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
HIGHEST            93   09/23        MM      MM       93  08/12
                        09/21
LOWEST            -11   12/28        MM      MM       -4  02/14
AVG. MAXIMUM     59.9              58.0     1.9     60.1
AVG. MINIMUM     40.8              38.7     2.1     41.5
MEAN             50.4              48.4     2.0     50.8
DAYS MAX >= 90      8               6.6     1.4       10
DAYS MAX <= 32     40              48.2    -8.2       45
DAYS MIN <= 32    112             135.7   -23.7      116
DAYS MIN <= 0       5               6.6    -1.6        2

PRECIPITATION (INCHES)
TOTALS          36.61             31.50    5.11    37.01
DAILY AVG.       0.10              0.09    0.01     0.10
DAYS >= .01       128             129.3    -1.3      122
DAYS >= .10        74              68.8     5.2       67
DAYS >= .50        26              20.0     6.0       18
DAYS >= 1.00        6               5.7     0.3        5
GREATEST
 24 HR. TOTAL    3.29   10/14 TO 10/14

DEGREE_DAYS
HEATING TOTAL    5888              6657    -769     5912
 SINCE 7/1       2464              2548     -84     2135
COOLING TOTAL     657               593      64      829
 SINCE 1/1        657               592      65      829

FREEZE DATES
EARLIEST                        MM
LATEST                          MM
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.4
RESULTANT WIND SPEED/DIRECTION   3/233
HIGHEST WIND SPEED/DIRECTION    43/250    DATE  03/08
HIGHEST GUST SPEED/DIRECTION    62/240    DATE  03/08

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR          160
NUMBER OF DAYS PC            104
NUMBER OF DAYS CLOUDY        100

AVERAGE RH (PERCENT)     69

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             48     MIXED PRECIP               0
HEAVY RAIN               32     RAIN                      62
LIGHT RAIN              152     FREEZING RAIN              2
LT FREEZING RAIN          6     HAIL                       0
HEAVY SNOW                9     SNOW                      17
LIGHT SNOW               55     SLEET                      0
FOG                     179     FOG W/VIS <= 1/4 MILE     28
HAZE                     96

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

&&

JACKSON MI ASOS TIPPING BUCKET RAIN GAUGE FAILED ON THE FOLLOWING
DATES... ESTIMATED RAINFALL AMOUNTS THAT WERE NOT COUNTED IN THE
ANNUAL TOTAL.

SEPTEMBER 19... LESS THAN 0.20 INCHES.
OCTOBER 23 TO 24... APPROXIMATELY 1.00 INCHES.

$$



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