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

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508
CXUS53 KDTX 111341 AAA
CLMDTW

CLIMATE REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
515 AM EDT TUE OCT 2 2018

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

...THE DETROIT MI CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1874 TO 2018

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   09/05        MM      MM
LOWEST             45   09/29        MM      MM
AVG. MAXIMUM     77.5              74.0     3.5
AVG. MINIMUM     60.4              54.7     5.7
MEAN             68.9              64.4     4.5
DAYS MAX >= 90      5               0.5     4.5
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           6.46              3.27    3.19
DAILY AVG.       0.22              0.11    0.11
DAYS >= .01        13               9.5     3.5
DAYS >= .10         6               5.9     0.1
DAYS >= .50         4               2.2     1.8
DAYS >= 1.00        2               0.7     1.3
GREATEST
 24 HR. TOTAL    2.51   09/25 TO 09/25
 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      61               104     -43
 SINCE 7/1         61               114     -53
COOLING TOTAL     187                84     103
 SINCE 1/1       1202               795     407

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

WIND (MPH)
AVERAGE WIND SPEED              7.6
HIGHEST WIND SPEED/DIRECTION    32/260    DATE  09/21
HIGHEST GUST SPEED/DIRECTION    39/230    DATE  09/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            2
NUMBER OF DAYS PC             15
NUMBER OF DAYS CLOUDY         13

AVERAGE RH (PERCENT)     71



-  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 2018

...TEMPERATURE DATA...              ...PRECIPITATION DATA...
AVERAGE MAXIMUM...72.0              MONTHLY TOTAL..........3.28
AVERAGE MINIMUM...53.1              GREATEST DAILY TOTAL...0.94
MONTHLY AVERAGE...62.5              ON THE 20TH
                                    2018 TOTAL.............27.68

...HEATING DEGREE DAYS...           ...SNOWFALL DATA...
MONTHLY TOTAL............156        MONTHLY TOTAL............0.0
2018-2019 SEASON TOTAL...178        2018-2019 SEASON TOTAL...0.0

...COOLING DEGREE DAYS...
MONTHLY TOTAL....90
2018 TOTAL......421

================================================================

       SOUTHEAST MICHIGAN CLIMATE SUMMARY FOR SEPTEMBER 2018


SEPTEMBER 2018 MONTHLY STATISTICS AND RANKINGS
-----------------------------------------------------------------

PRECIPITATION
                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA    6.46"      3.27"      +3.19"      4TH WETTEST
FLINT AREA      3.36"      3.75"      -0.39"     36TH WETTEST
SAGINAW         1.81"      3.83"      -2.02"     27TH WETTEST


PRECIPITATION SINCE JANUARY 1*

                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA    33.96"    25.70"      +8.26"      4TH WETTEST
FLINT AREA      28.85"    24.31"      +4.54"     15TH WETTEST
SAGINAW         24.06"    24.35"      -0.29"     47TH WETTEST

      *NORMAL TO DATE (AS OF SEPTEMBER 30, 2018)

AVERAGE TEMPERATURE
                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA     68.9      64.4       +4.5        5TH WARMEST
FLINT AREA       64.8      61.1       +3.7       18TH WARMEST
SAGINAW          65.1      61.3       +3.8       13TH WARMEST

AVERAGE HIGH TEMPERATURE
                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA     77.5      74.0       +3.5       12TH WARMEST
FLINT AREA       74.3      72.3       +2.0       35TH WARMEST
SAGINAW          74.0      72.1       +1.9       28TH WARMEST

AVERAGE LOW TEMPERATURE
                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA     60.4      54.7       +5.7        4TH WARMEST
FLINT AREA       55.2      49.9       +5.3        8TH WARMEST
SAGINAW          56.1      50.5       +5.6        6TH 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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