Climatological Report (Seasonal)
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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
1101 AM EST SAT DEC 2 2017

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

...THE JACKSON MI CLIMATE SUMMARY FOR THE SEASON, FROM
9/1/2017 TO 11/30/2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1944 TO 9999

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
HIGHEST            93   09/23        MM      MM       90  09/07
                        09/21
LOWEST             18   11/10        MM      MM       21  11/22
AVG. MAXIMUM     62.8              60.3     2.5     64.7
AVG. MINIMUM     42.9              41.0     1.9     45.9
MEAN             52.8              50.7     2.1     55.3
DAYS MAX >= 90      6               0.4     5.6        1
DAYS MAX <= 32      1               1.8    -0.8        1
DAYS MIN <= 32     20              22.1    -2.1        9
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
TOTALS          12.87              8.71    4.16     9.78
DAILY AVG.       0.14              0.10    0.04     0.11
DAYS >= .01        31              31.5    -0.5       28
DAYS >= .10        20              18.3     1.7       18
DAYS >= .50        10               5.8     4.2        9
DAYS >= 1.00        3               1.6     1.4        1
GREATEST
 24 HR. TOTAL    3.29   10/14 TO 10/14
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    09/29(00) TO 09/29(00)
                                                 09/29(00) TO 09/29(00)@
                                                 09/29(00) TO 09/29(00)@

DEGREE_DAYS
HEATING TOTAL    1215              1369    -154      966
 SINCE 7/1       1242              1404    -162      970
COOLING TOTAL     130                63      67      101
 SINCE 1/1        657               592      65      829

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

WIND (MPH)
AVERAGE WIND SPEED              7.2
RESULTANT WIND SPEED/DIRECTION   3/199
HIGHEST WIND SPEED/DIRECTION    33/220    DATE  10/07
HIGHEST GUST SPEED/DIRECTION    45/180    DATE  10/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           42
NUMBER OF DAYS PC             26
NUMBER OF DAYS CLOUDY         23

AVERAGE RH (PERCENT)     70

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             10     MIXED PRECIP               0
HEAVY RAIN               10     RAIN                      18
LIGHT RAIN               38     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                5     SLEET                      0
FOG                      64     FOG W/VIS <= 1/4 MILE      8
HAZE                     34

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

$$

JAM



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