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

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289
CXUS53 KDTX 041742
CLMDTW

CLIMATE REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1242 PM EST SAT JAN 04 2025

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

...THE DETROIT MI CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2024...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1874 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             69   12/06/1998
 LOW             -11   12/29/1880
HIGHEST           58   12/28         MM      MM
LOWEST            10   12/13         MM      MM
AVG. MAXIMUM    39.0               37.2     1.8
AVG. MINIMUM    27.5               25.3     2.2
MEAN            33.3               31.3     2.0
DAYS MAX >= 90     0                0.0     0.0
DAYS MAX <= 32     6                9.5    -3.5
DAYS MIN <= 32    17               24.2    -7.2
DAYS MIN <= 0      0                0.3    -0.3

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        5.19   1967
 MINIMUM        0.08   2024
TOTALS          3.27               2.25    1.02
DAILY AVG.      0.11               0.07    0.04
DAYS >= .01       14               13.1     0.9
DAYS >= .10        6                5.4     0.6
DAYS >= .50        2                1.4     0.6
DAYS >= 1.00       1                0.1     0.9
GREATEST
 24 HR. TOTAL   1.43   12/29 TO 12/29

SNOWFALL (INCHES)
RECORDS
 TOTAL          34.9   1974
TOTALS           3.6                8.9    -5.3
 LIQUID EQUIV   0.40               0.80   -0.40
SINCE 7/1        5.4               10.8    -5.4
 LIQUID 7/1     0.54
DAYS >= TRACE     16                8.0     8.0
DAYS >= 1.0        1                2.7    -1.7
GREATEST
 SNOW DEPTH        1   12/13
                       12/14
                       12/21

DEGREE DAYS
HEATING TOTAL    977               1046     -69
 SINCE 7/1      1821               2239    -418
COOLING TOTAL      0                  0       0
 SINCE 1/1       995                847     148

FREEZE DATES
RECORD
 EARLIEST     09/22 (1974)
 LATEST       05/29 (1966)
EARLIEST      11/21 (2024)
LATEST        04/25 (2024)
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              9.8
HIGHEST WIND SPEED/DIRECTION    32/270    DATE  12/05
HIGHEST GUST SPEED/DIRECTION    45/280    DATE  12/04
                                45/260          12/05
                                45/210          12/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.85
NUMBER OF DAYS FAIR            0
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY         21

AVERAGE RH (PERCENT)     75

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       3
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW               16     SLEET                      1
FOG                      18     FOG W/VIS <= 1/4 MILE      3
HAZE                      2

-  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 - DECEMBER 2024

...TEMPERATURE DATA...              ...PRECIPITATION DATA...
AVERAGE MAXIMUM.........36.5        MONTHLY TOTAL..........2.85
AVERAGE MINIMUM.........23.7        GREATEST DAILY TOTAL...1.08
MONTHLY AVERAGE.........30.1         ON THE 29TH
                                    2024 TOTAL............40.16
...HEATING DEGREE DAYS...
MONTHLY TOTAL...........1076        ...SNOWFALL DATA...
2024-2025 SEASON TOTAL..2205        MONTHLY TOTAL..........10.5
                                    2024-2025 SEASON TOTAL.12.1
...COOLING DEGREE DAYS...
MONTHLY TOTAL..............0
2024 TOTAL...............566

================================================================
       SOUTHEAST MICHIGAN CLIMATE SUMMARY FOR DECEMBER 2024

DECEMBER 2024 MONTHLY STATISTICS AND RANKINGS
-----------------------------------------------------------------

SNOWFALL
                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA     3.6"       8.9"       -5.3"     30TH LEAST SNOWY
FLINT AREA      10.8"      11.4"       -0.6"     31ST SNOWIEST
SAGINAW AREA     9.8"      11.8"       -2.0"     41ST SNOWIEST

SNOWFALL SINCE JULY 1*
                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA     5.4"      10.8"       -5.4"     28TH LEAST SNOWY
FLINT AREA      12.5"      15.0"       -2.5"     46TH SNOWIEST
SAGINAW AREA     9.9"      15.3"       -5.4"     49TH LEAST SNOWY

      *NORMAL TO DATE (AS OF DECEMBER 31, 2024)

PRECIPITATION
                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA     3.27"     2.25"      +1.02"     32ND WETTEST
FLINT AREA       2.68"     1.89"      +0.79"     19TH WETTEST
SAGINAW AREA     2.50"     1.85"      +0.65"     27TH WETTEST

PRECIPITATION SINCE JANUARY 1*
                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA    32.46"    34.32"      -1.86"     76TH DRIEST
FLINT AREA      33.15"    31.97"      +1.18"     35TH WETTEST
SAGINAW AREA    25.98"    32.12"      -6.14"     26TH DRIEST

      *NORMAL TO DATE (AS OF DECEMBER 31, 2024)

AVERAGE TEMPERATURE
                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA     33.3      31.3       +2.0       33RD WARMEST
FLINT AREA       31.5      28.7       +2.8       26TH WARMEST
SAGINAW AREA     30.5      28.9       +1.6       33RD WARMEST

AVERAGE HIGH TEMPERATURE
                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA     39.0      37.2       +1.8       38TH WARMEST
FLINT AREA       37.5      34.9       +2.6       29TH WARMEST
SAGINAW AREA     36.4      34.7       +1.7       31ST WARMEST

AVERAGE LOW TEMPERATURE
                ACTUAL    NORMAL     DEPARTURE     RANKING
DETROIT AREA     27.5      25.3       +2.2       33RD WARMEST
FLINT AREA       25.5      22.5       +3.0       28TH WARMEST
SAGINAW AREA     24.6      23.1       +1.5       33RD WARMEST


DETROIT AREA HAS A CLIMATE RECORD DATING TO NOVEMBER 1874 (~151 YEARS)
FLINT AREA HAS A CLIMATE RECORD DATING TO JANUARY 1921 (~104 YEARS)
SAGINAW AREA HAS CLIMATE RECORD DATING TO JANUARY 1912 (~113 YEARS)