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

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CLMDTW

CLIMATE REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
544 PM EDT TUE MAY 1 2018

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

...THE DETROIT MI CLIMATE SUMMARY FOR THE MONTH OF APRIL 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              89   04/12/1977
 LOW                8   04/18/1875
HIGHEST            76   04/12        MM      MM
LOWEST             21   04/08        MM      MM
AVG. MAXIMUM     52.3              59.1    -6.8
AVG. MINIMUM     33.6              39.4    -5.8
MEAN             43.0              49.2    -6.2
DAYS MAX >= 90      0               0.0     0.0
DAYS MAX <= 32      0               0.1    -0.1
DAYS MIN <= 32     15               5.6     9.4
DAYS MIN <= 0       0               0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.89   1947
 MINIMUM         0.53   1899
TOTALS           3.79              2.90    0.89
DAILY AVG.       0.13              0.10    0.03
DAYS >= .01        12              12.2    -0.2
DAYS >= .10         6               7.0    -1.0
DAYS >= .50         3               1.8     1.2
DAYS >= 1.00        1               0.3     0.7
GREATEST
 24 HR. TOTAL    1.46   04/15 TO 04/15
 STORM TOTAL       MM
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL           25.7   1886
                        0
                        0
TOTALS            2.4               1.7     0.7
 LIQUID EQUIV    0.24              0.20    0.04
SINCE 7/1        61.0              42.5    18.5
 LIQUID 7/1      6.10
DAYS >= TRACE       9               1.6     7.4
DAYS >= 1.0         1               0.4     0.6
GREATEST
 SNOW DEPTH         1   04/06
 24 HR TOTAL      1.0R  04/06 TO 04/06
 STORM TOTAL       MM
 (MM/DD(HH))            MM

DEGREE_DAYS
HEATING TOTAL     653               479     174
 SINCE 7/1       5999              5894     105
COOLING TOTAL       0                 6      -6
 SINCE 1/1          0                 6      -6

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

WIND (MPH)
AVERAGE WIND SPEED              9.2
HIGHEST WIND SPEED/DIRECTION    33/230    DATE  04/12
HIGHEST GUST SPEED/DIRECTION    45/240    DATE  04/12

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            5
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY         18

AVERAGE RH (PERCENT)     59

-  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 - APRIL 2018

...TEMPERATURE DATA...              ...PRECIPITATION DATA...
AVERAGE MAXIMUM...47.1              MONTHLY TOTAL..........3.50
AVERAGE MINIMUM...27.4              GREATEST DAILY TOTAL...1.21
MONTHLY AVERAGE...37.2              ON THE 15TH
                                    2018 TOTAL.............11.64

...HEATING DEGREE DAYS...           ...SNOWFALL DATA...
MONTHLY TOTAL............825        MONTHLY TOTAL............9.0
2017-2018 SEASON TOTAL...7197       2017-2018 SEASON TOTAL...87.3

...COOLING DEGREE DAYS...
MONTHLY TOTAL...0
2018 TOTAL......0

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

       SOUTHEAST MICHIGAN CLIMATE SUMMARY FOR APRIL 2018


APRIL 2018 MONTHLY STATISTICS AND RANKINGS
-----------------------------------------------------------------

SNOWFALL
                ACTUAL    NORMAL    DEPARTURE     RANKING
DETROIT AREA     2.4"      1.7"       +0.7"     33RD SNOWIEST
FLINT AREA       7.9"      2.3"       +5.6"      6TH SNOWIEST
SAGINAW          5.5"      1.7"       +3.8"     14TH SNOWIEST

SNOW YEAR SINCE JULY 1*

                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA    61.0"      40.8"      +17.8"     15TH SNOWIEST
FLINT AREA      85.3"      45.1"      +32.3"      1ST SNOWIEST
SAGINAW         41.4"      41.5"       -0.1"     53RD LEAST SNOWY

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

PRECIPITATION
                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA    3.79"      2.90"      +0.89"     30TH WETTEST
FLINT AREA      3.11"      2.89"      +0.22"     38TH WETTEST
SAGINAW         2.54"      2.89"      -0.35"     53RD WETTEST


PRECIPITATION SINCE JANUARY 1*

                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA    12.05"     9.16"      +2.89"     22ND WETTEST
FLINT AREA      10.10"     7.91"      +2.19"     19TH WETTEST
SAGINAW          7.16"     8.27"      -1.11"     46TH DRIEST

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

AVERAGE TEMPERATURE
                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA     43.0      49.2       -6.2       13TH COLDEST
FLINT AREA       39.1      46.4       -7.3        1ST COLDEST
SAGINAW          39.0      46.1       -7.1        2ND COLDEST

AVERAGE HIGH TEMPERATURE
                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA     52.3      59.1       -6.8       19TH COLDEST
FLINT AREA       49.3      57.3       -8.0        3RD COLDEST
SAGINAW          48.5      56.1       -7.6        3RD COLDEST

AVERAGE LOW TEMPERATURE
                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA     33.6      39.4       -5.8       11TH COLDEST
FLINT AREA       28.9      35.5       -6.6        1ST COLDEST
SAGINAW          29.5      36.0       -6.5        3RD COLDEST


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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