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

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550
CXUS53 KDTX 021052
CLMDTW

CLIMATE REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
637 AM EDT TUE SEP 02 2025

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

...THE DETROIT MI CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2025...

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            104   08/06/1918
 LOW              38   08/29/1982
HIGHEST           91   08/10         MM      MM
                       08/11
LOWEST            50   08/27         MM      MM
                       08/29
                       08/30
AVG. MAXIMUM    80.5               81.4    -0.9
AVG. MINIMUM    61.8               63.2    -1.4
MEAN            71.1               72.3    -1.2
DAYS MAX >= 90     4                2.7     1.3
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        8.33   1926
 MINIMUM        0.16   1894
TOTALS          1.31               3.26   -1.95
DAILY AVG.      0.04               0.11   -0.07
DAYS >= .01        5                9.7    -4.7
DAYS >= .10        3                6.1    -3.1
DAYS >= .50        1                2.0    -1.0
DAYS >= 1.00       1                0.7     0.3
GREATEST
 24 HR. TOTAL   1.08   08/12 TO 08/12

SNOWFALL (INCHES)
RECORDS
 TOTAL           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
 24 HR TOTAL     0.0

DEGREE DAYS
HEATING TOTAL     19                  7      12
 SINCE 7/1        19                  3      16
COOLING TOTAL    218                233     -15
 SINCE 1/1       828                747      81

FREEZE DATES
RECORD
 EARLIEST     09/22 (1974)
 LATEST       05/29 (1966)
EARLIEST      11/21 (2024)
LATEST        04/12 (2025)
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.5
HIGHEST WIND SPEED/DIRECTION    29/330    DATE  08/12
HIGHEST GUST SPEED/DIRECTION    39/330    DATE  08/12

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.57
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             21
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              4     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       2
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      16     FOG W/VIS <= 1/4 MILE      0
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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