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546
CXUS53 KGRR 011716
CLMLAN

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI
1258 PM EDT WED OCT 1 2014

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

...THE LANSING MI CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1864 TO 2014

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              99   09/02/1894
 LOW               19   09/21/1863
HIGHEST            89   09/05        88       1       92  09/10
LOWEST             40   09/19        33       7       36  09/17
                        09/17
AVG. MAXIMUM     71.6              72.7    -1.1     72.7
AVG. MINIMUM     50.1              51.2    -1.1     50.6
MEAN             60.8              61.9    -1.1     61.6
DAYS MAX >= 90      0               0.3    -0.3        1
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.3    -0.3        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.34   1986
 MINIMUM         0.00   1979
TOTALS           2.54              3.50   -0.96     0.98
DAILY AVG.       0.08              0.12   -0.04     0.03
DAYS >= .01        10              10.7    -0.7        7
DAYS >= .10         8               5.9     2.1        3
DAYS >= .50         1               2.3    -1.3        0
DAYS >= 1.00        0               0.9    -0.9        0
GREATEST
 24 HR. TOTAL    0.55   09/05 TO 09/05           09/09 TO 09/09

SNOWFALL (INCHES)
RECORDS
 TOTAL              T   1994
                        1989
                        1967
 24 HR TOTAL        T   MM
 SNOW DEPTH         T   MM
TOTALS            0.0               0.0     0.0      0.0
SINCE 7/1         0.0               0.0     0.0      0.0
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE       0               0.0     0.0        0
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   09/30 TO 09/30           09/29 TO 09/29

DEGREE_DAYS
HEATING TOTAL     160               153       7      156
 SINCE 7/1        200               188      12      191
COOLING TOTAL      43                61     -18       63
 SINCE 1/1        488               618    -130      651

FREEZE DATES
RECORD
 EARLIEST     08/03/1894
 LATEST       07/15/1863
EARLIEST                        10/01
LATEST                          05/10
..........................................................

WIND (MPH)
AVERAGE WIND SPEED              6.2
RESULTANT WIND SPEED/DIRECTION   2/237
HIGHEST WIND SPEED/DIRECTION    31/250    DATE  09/05
HIGHEST GUST SPEED/DIRECTION    45/250    DATE  09/05

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           16
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     74

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                6     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                      23     FOG W/VIS <= 1/4 MILE      5
HAZE                      9

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

&&

SEPTEMBER 2014 WAS OVERALL COOLER AND DRIER THAN NORMAL IN SOUTHWEST
LOWER MICHIGAN. TEMPERATURES ENDED UP ABOUT A DEGREE BELOW NORMAL
AND PRECIPITATION ABOUT AN INCH BELOW NORMAL IN MANY LOCATIONS.

THE MONTH STARTED OUT ON THE WARM AND HUMID SIDE... WITH OCCASIONAL
ROUNDS OF THUNDERSTORMS DURING THE FIRST WEEK. SEPTEMBER 5TH WAS THE
HOTTEST DAY FOR MOST AREAS AS TEMPERATURES HIT OR EXCEEDED THE 90
DEGREE MARK IN KALAMAZOO... BATTLE CREEK AND JACKSON. LANSING TOPPED
OUT AT 89 AND GRAND RAPIDS STAYED AT 84... WHICH SECURED THE
REMARKABLE STATISTIC OF NO 90 DEGREE DAYS IN 2014 AT BOTH CITIES.

A SIGNIFICANT COOL DOWN OCCURRED IN THE MIDDLE OF THE MONTH. HIGHS
FAILED TO REACH 60 DEGREES THROUGHOUT THE AREA ON SEPTEMBER 12TH.
MUSKEGON ALSO SET A RECORD FOR COLDEST HIGH TEMPERATURE ON THE 12TH
WITH A HIGH OF 57. AS SKIES CLEARED TOWARD THE LATER PORTION OF THE
COLD STRETCH... A FEW NIGHTS OF PATCHY TO WIDESPREAD FROST OCCURRED
IN NORTHERN AND CENTRAL LOWER MICHIGAN.

A WEEKLONG STRETCH OF WARM AND SUNNY WEATHER ROUNDED OUT THE LATTER
PART OF THE MONTH... WITH HIGHS CONSISTENTLY IN THE 70S AND LOWS
AROUND 50. VERY LITTLE PRECIPITATION FELL DURING THIS PERIOD...
WHICH KEPT THE MONTHLY PRECIPITATION AT ABOUT 75 PERCENT OF NORMAL
FOR MOST LOCATIONS. A COLD FRONT ON THE 29TH BROUGHT LIGHT RAIN
FOLLOWED BY MUCH COOLER AIR FOR THE FINAL DAY OF SEPTEMBER.

THERE WAS ONE DAY OF WIDESPREAD SEVERE WEATHER IN SOUTHWEST LOWER
MICHIGAN. A LINE OF STORMS ON THE EVENING OF SEPTEMBER 5TH PRODUCED
WIND DAMAGE AND NUMEROUS POWER OUTAGES SPANNING FROM WEST OF
KALAMAZOO TO EAST OF JACKSON. MANY TREES FELL IN KALAMAZOO AND IN
THE BATTLE CREEK AREA... AND THE AIRPORTS IN KALAMAZOO AND BATTLE
CREEK MEASURED RESPECTIVE WIND GUSTS OF 56 AND 60 MPH.

$$

CAS 63







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