Climatological Report (Monthly)
Issued by NWS

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000
CXUS53 KGRR 011851 CCA
CLMJXN

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
1002 AM EDT SAT OCT 1 2016

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

...THE JACKSON MI CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2016...

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            90   09/07        MM      MM       88  09/07
                                                          09/06
LOWEST             49   09/28        MM      MM       41  09/13
                        09/04
                        09/03
AVG. MAXIMUM     76.0              72.7     3.3     76.7
AVG. MINIMUM     56.5              50.9     5.6     54.8
MEAN             66.2              61.8     4.4     65.8
DAYS MAX >= 90      1               0.4     0.6        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.2    -0.2        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
TOTALS           3.54              3.48    0.06     0.84
DAILY AVG.       0.12              0.12    0.00     0.03
DAYS >= .01         9               9.6    -0.6        5
DAYS >= .10         6               6.4    -0.4        2
DAYS >= .50         3               2.5     0.5        1
DAYS >= 1.00        1               0.8     0.2        0
GREATEST
 24 HR. TOTAL    1.34   09/28 TO 09/29

DEGREE_DAYS
HEATING TOTAL      44               153    -109       83
 SINCE 7/1         48               188    -140      121
COOLING TOTAL      87                57      30      113
 SINCE 1/1        815               586     229      539
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.4
RESULTANT WIND SPEED/DIRECTION   1/194
HIGHEST WIND SPEED/DIRECTION    25/240    DATE  09/27
HIGHEST GUST SPEED/DIRECTION    34/260    DATE  09/26

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           20
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     77

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       5
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      1
HAZE                      0

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

&&

SEPTEMBER 2016 WAS NOTABLY WARMER THAN NORMAL ACROSS SOUTHWEST LOWER
MICHIGAN. MUSKEGON RECORDED ITS WARMEST SEPTEMBER ON RECORD. RECORDS
BEGAN THERE IN 1896. AVERAGE TEMPERATURE IN GRAND RAPIDS AND LANSING
WAS IN THE TOP TEN ON RECORD.

TEMPERATURES WERE CONSISTENTLY WARMER THAN NORMAL THROUGH THE FIRST
THREE WEEKS OF SEPTEMBER... WITH DAILY HIGHS MAINLY IN THE 70S AND
80S. SOME LOCATIONS EVEN HIT 90 DEGREES ON SEPTEMBER 6TH.
TEMPERATURES DIPPED BACK TO REALITY DURING THE LAST WEEK OF THE
MONTH... WITH HIGHS IN THE 60S. ABOVE NORMAL LOW TEMPERATURES KEPT
THE DAILY AVERAGES CLOSER TO NORMAL DURING THE FINAL WEEK OF
SEPTEMBER.

PRECIPITATION WAS VARIABLE ACROSS THE AREA IN SEPTEMBER... BELOW
NORMAL FOR MANY AREAS WITH TWO SIGNIFICANT EXCEPTIONS. AREAS NORTH
OF GRAND RAPIDS AND WEST OF BIG RAPIDS SAW ABOVE NORMAL RAINFALL...
AS DID SOUTHEAST LOWER MICHIGAN EXTENDING TO LANSING. IN FACT...
MUSKEGON HAD WELL ABOVE NORMAL RAINFALL. MUSKEGON SET BACK-TO-BACK
DAILY RAINFALL RECORDS ON THE 6TH AND 7TH OF SEPTEMBER. 4.24 INCHES
FELL IN MUSKEGON OVER THOSE TWO DAYS.

$$

CAS/EBW


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