Climatological Report (Monthly)
Issued by NWS Detroit/Pontiac, MI

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CXUS53 KDTX 171936 AAA
CLMDTW

CLIMATE REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
451 AM EDT WED OCT 4 2017

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

...THE DETROIT MI CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1874 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH             100   09/03/1953
                        09/02/1953
                        09/15/1939
 LOW               29   09/23/1974
HIGHEST            93   09/26        MM      MM
LOWEST             45   09/30        MM      MM
AVG. MAXIMUM     77.2              74.0     3.2
AVG. MINIMUM     56.9              54.7     2.2
MEAN             67.1              64.4     2.7
DAYS MAX >= 90      3               0.5     2.5
DAYS MAX <= 32      0               0.0     0.0
DAYS MIN <= 32      0               0.0     0.0
DAYS MIN <= 0       0               0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.52   1986
 MINIMUM         0.39   1877
TOTALS           0.91              3.27   -2.36
DAILY AVG.       0.03              0.11   -0.08
DAYS >= .01         6               9.5    -3.5
DAYS >= .10         2               5.9    -3.9
DAYS >= .50         0               2.2    -2.2
DAYS >= 1.00        0               0.7    -0.7
GREATEST
 24 HR. TOTAL    0.49   09/04 TO 09/04
 STORM TOTAL       MM
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL            0.0   0
                        0
                        0
TOTALS            0.0               0.0     0.0
 LIQUID EQUIV    0.00              0.00    0.00
SINCE 7/1         0.0               0.0     0.0
 LIQUID 7/1      0.00
DAYS >= TRACE       0               0.0     0.0
DAYS >= 1.0         0               0.0     0.0
GREATEST
 SNOW DEPTH         0   MM
 24 HR TOTAL      0.0   09/30 TO 09/30
 STORM TOTAL       MM
 (MM/DD(HH))            MM

DEGREE_DAYS
HEATING TOTAL      66               104     -38
 SINCE 7/1         70               114     -44
COOLING TOTAL     136                84      52
 SINCE 1/1        886               795      91

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

WIND (MPH)
AVERAGE WIND SPEED              6.0
HIGHEST WIND SPEED/DIRECTION    30/290    DATE  09/07
HIGHEST GUST SPEED/DIRECTION    39/290    DATE  09/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            7
NUMBER OF DAYS PC             16
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       1
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      18     FOG W/VIS <= 1/4 MILE      2
HAZE                     10

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

$$

---------------------------------------------------------------
MONTHLY CLIMATE DATA FOR NWS WHITE LAKE - SEPTEMBER 2017

...TEMPERATURE DATA...              ...PRECIPITATION DATA...
AVERAGE MAXIMUM...74.5              MONTHLY TOTAL..........0.43
AVERAGE MINIMUM...48.9              GREATEST DAILY TOTAL...0.10
MONTHLY AVERAGE...61.7              ON THE 7TH
                                    2017 TOTAL............24.58

...HEATING DEGREE DAYS...           ...SNOWFALL DATA...
MONTHLY TOTAL............164        MONTHLY TOTAL............0.0
2017-2018 SEASON TOTAL...232        2017-2018 SEASON TOTAL...0.0

...COOLING DEGREE DAYS...
MONTHLY TOTAL...77
2017 TOTAL......373

================================================================
       SOUTHEAST MICHIGAN CLIMATE SUMMARY FOR SEPTEMBER 2017


SEPTEMBER 2017 MONTHLY STATISTICS AND RANKINGS
-----------------------------------------------------------------
PRECIPITATION
                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA    0.91"      3.27"      -2.36"     13TH DRIEST
FLINT AREA      0.84"      3.75"      -2.91"      9TH DRIEST
SAGINAW         0.44"      3.83       -3.39"      2ND DRIEST

WATER YEAR SINCE JANUARY 1*

                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA    26.21"    25.70"      +0.51"     52ND WETTEST
FLINT AREA      26.53"    24.31"      +2.22"     28TH WETTEST
SAGINAW         30.22"    24.35"      +5.87"      7TH WETTEST

      *NORMAL TO DATE (AS OF SEPTEMBER 30, 2017)

AVERAGE TEMPERATURE
                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA     67.1      64.4       +2.7       20TH WARMEST
FLINT AREA       63.9      61.1       +2.8       24TH WARMEST
SAGINAW          65.6      61.3       +4.3        9TH WARMEST

AVERAGE HIGH TEMPERATURE
                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA     77.2      74.0       +3.2       13TH WARMEST
FLINT AREA       77.4      72.3       +5.4       11TH WARMEST
SAGINAW          77.9      72.9       +5.8        5TH WARMEST

AVERAGE LOW TEMPERATURE
                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA     56.9      54.7       +2.2       33RD WARMEST
FLINT AREA       50.3      49.9       +0.4       39TH COLDEST
SAGINAW          53.4      50.5       +2.9       16TH WARMEST


DETROIT AREA HAS A CLIMATE RECORD DATING TO NOVEMBER 1874
FLINT AREA HAS A CLIMATE RECORD DATING TO JANUARY 1921
SAGINAW HAS A CLIMATE RECORD DATING TO 1912


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