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

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CXUS53 KDTX 052114
CLMDTW

CLIMATE REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
410 PM EST MON JAN 5 2015

...................................
...THE DETROIT MI CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1874 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              90   12/07/2009
 LOW              -11   12/29/1880
HIGHEST            53   12/14        MM      MM
LOWEST             14   12/31        MM      MM
AVG. MAXIMUM     39.3              36.1     3.2
AVG. MINIMUM     27.9              24.1     3.8
MEAN             33.6              30.1     3.5
DAYS MAX >= 90      0               0.0     0.0
DAYS MAX <= 32      4              10.5    -6.5
DAYS MIN <= 32     23              23.9    -0.9
DAYS MIN <= 0       0               0.7    -0.7

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         5.19   1967
 MINIMUM         0.42   1900
TOTALS           1.41              2.46   -1.05
DAILY AVG.       0.05              0.08   -0.03
DAYS >= .01         7              13.7    -6.7
DAYS >= .10         4               6.2    -2.2
DAYS >= .50         1               1.4    -0.4
DAYS >= 1.00        0               0.2    -0.2
GREATEST
 24 HR. TOTAL    0.70   12/24 TO 12/24
 STORM TOTAL       MM
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL           34.9   1974
                        0
                        0
TOTALS            0.1               9.6    -9.5
 LIQUID EQUIV    0.01              1.00   -0.99
SINCE 7/1         4.1              11.2    -7.1
 LIQUID 7/1      0.41
DAYS >= TRACE       5               8.5    -3.5
DAYS >= 1.0         0               3.2    -3.2
GREATEST
 SNOW DEPTH         T   12/31
 24 HR TOTAL      0.1   MM
 STORM TOTAL       MM
 (MM/DD(HH))            MM

DEGREE_DAYS
HEATING TOTAL     967              1082    -115
 SINCE 7/1       2344              2297      47
COOLING TOTAL       0                 0       0
 SINCE 1/1        704               803     -99

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

WIND (MPH)
AVERAGE WIND SPEED              8.3
HIGHEST WIND SPEED/DIRECTION    30/230    DATE  12/24
HIGHEST GUST SPEED/DIRECTION    36/230    DATE  12/31

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.80
NUMBER OF DAYS FAIR            0
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY         23

AVERAGE RH (PERCENT)     74

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       4
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          2     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                5     SLEET                      0
FOG                      16     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.

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