Climatological Report (Monthly)
Issued by NWS

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000
CXUS53 KGRR 031727 CCA
CLMJXN

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
658 AM EDT MON AUG 1 2016

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

...THE JACKSON MI CLIMATE SUMMARY FOR THE MONTH OF JULY 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            91   07/23        MM      MM       90  07/28
LOWEST             47   07/02        MM      MM       51  07/04
                                                          07/03
                                                          07/02
AVG. MAXIMUM     83.5              82.1     1.4     80.2
AVG. MINIMUM     62.3              60.2     2.1     58.3
MEAN             72.9              71.1     1.8     69.2
DAYS MAX >= 90      2               2.8    -0.8        1
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.0     0.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
TOTALS           6.27              3.58    2.69     2.60
DAILY AVG.       0.20              0.12    0.08     0.08
DAYS >= .01        10               9.6     0.4        8
DAYS >= .10         9               6.5     2.5        6
DAYS >= .50         3               2.7     0.3        3
DAYS >= 1.00        1               0.8     0.2        0
GREATEST
 24 HR. TOTAL    3.12   07/07 TO 07/08

DEGREE_DAYS
HEATING TOTAL       4                11      -7       13
 SINCE 7/1          4                11      -7       13
COOLING TOTAL     257               202      55      153
 SINCE 1/1        462               365      97      294
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.2
RESULTANT WIND SPEED/DIRECTION   3/253
HIGHEST WIND SPEED/DIRECTION    32/250    DATE  07/12
HIGHEST GUST SPEED/DIRECTION    47/250    DATE  07/12

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           19
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             10     MIXED PRECIP               0
HEAVY RAIN                8     RAIN                       7
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      17     FOG W/VIS <= 1/4 MILE      1
HAZE                      3

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

&&

JULY 2016 CAME TO A CLOSE WITH TEMPERATURES THAT AVERAGED SLIGHTLY ABOVE NORMAL
THROUGH MOST OF CENTRAL LOWER MICHIGAN AND NEAR NORMAL IN FAR SOUTHWEST LOWER
MICHIGAN. AREA-WIDE PRECIPITATION TOTALS AVERAGED ABOVE NORMAL WITH SPORADIC
LOCATIONS WELL ABOVE OR BELOW NORMAL.

IT WAS A MILD MONTH OVERALL. LESS THAN ONE-THIRD OF THE DAYS RESULTED IN
TEMPERATURES THAT WOULD BE CONSIDERED BELOW NORMAL. ABOUT HALF OF THE BELOW
NORMAL DAILY AVERAGES WERE CONFINED TO THE FIRST WEEK. MUCH OF THE TIME...HIGH
TEMPERATURES AT EACH CLIMATE SITE WERE SOLIDLY IN THE 80S WITH FEW 90S
INTERSPERSED THROUGHOUT JULY. NO RECORD HIGH TEMPERATURES WERE SET... BUT
RELATIVELY WARM NIGHTS WERE COMMON. LANSING TIED A RECORD WARM LOW TEMPERATURE
OF 73 DEGREES ON JULY 22ND...PREVIOUSLY SET IN 1972. ELEVATED HUMIDITY LEVELS
PERIODICALLY MADE THEIR WAY INTO THE LOWER PENINSULA. THE COMBINATION OF WARM
TEMPERATURES AND MOISTURE LED TO A FEW SULTRY SUMMER DAYS.

PRECIPITATION...WHILE NOT AT ALL VOID...WAS HIT-OR-MISS. THE CONVECTIVE
ENVIRONMENT PROVIDED FOR LOCALIZED HEAVY RAINFALL. A BULK OF THE MONTHS
MOISTURE WAS RECEIVED IN LARGE...SINGLE EVENTS. AS HIGH PRESSURE STRENGTHENED
AND MEANDERED THROUGH THE MIDWEST...THE ACTIVE STORM TRACK SET UP OVER THE
GREAT LAKES REGION FROM TIME TO TIME. ON JULY 7TH...LOCALIZED HEAVY RAIN
DEVELOPED OVER JACKSON MICHIGAN...LEADING TO URBAN FLOODING THAT AFFECTED THE
GROUND FLOOR OF THE HENRY FORD ALLEGIANCE HEALTH HOSPITAL. ON JULY 24TH AND
JULY 29TH...THE MUSKEGON AND GRAND RAPIDS AREAS RECEIVED THEIR FAIR SHARE OF
RAINFALL. BOTH SITES BROKE DAILY RAINFALL RECORDS ON JULY 24TH...WITH 2.93
INCHES OF RAIN RECORDED IN MUSKEGON AND 1.53 INCHES RECORDED IN GRAND RAPIDS.
MUSKEGONS MONTHLY RAINFALL RANKED 5TH WETTEST ON RECORD.

SEVERE WEATHER WAS FAIRLY TAME WITH A LIMITED NUMBER OF LOCAL STORM REPORTS.
ONLY MARGINAL STORM DAMAGE WAS PERIODICALLY NOTED IN JULY. DAMAGE THAT DID
OCCUR WAS LARGELY RELATED TO GUSTY WINDS AND CONSISTED OF FEW DOWNED
TREES...LIMBS AND POWERLINES ON A LOCAL SCALE. NO WIDESPREAD SEVERE WEATHER
DEVELOPED THROUGHOUT THE MONTH.

$$

JAM


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