Climatological Report (Monthly)
Issued by NWS
Issued by NWS
743
CXUS53 KDTX 071439 RRB
CLMMBS
CLIMATE REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
637 AM EDT TUE SEP 02 2025
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...THE TRI CITIES MI CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1912 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..............................................................
TEMPERATURE (F)
RECORD
HIGH 103 08/06/1918
LOW 37 08/29/1982
HIGHEST 93 08/10 MM MM
LOWEST 46 08/26 MM MM
08/27
AVG. MAXIMUM 79.5 80.0 -0.5
AVG. MINIMUM 59.0 59.4 -0.4
MEAN 69.2 69.7 -0.5
DAYS MAX >= 90 3 1.4 1.6
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 9.43 2012
MINIMUM T 2024
TOTALS 3.13 3.85 -0.72
DAILY AVG. 0.10 0.12 -0.02
DAYS >= .01 6 10.5 -4.5
DAYS >= .10 5 6.0 -1.0
DAYS >= .50 2 2.6 -0.6
DAYS >= 1.00 1 1.1 -0.1
GREATEST
24 HR. TOTAL 1.66 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
DEGREE DAYS
HEATING TOTAL 33 19 14
SINCE 7/1 34 25 9
COOLING TOTAL 169 165 4
SINCE 1/1 688 565 123
FREEZE DATES
RECORD
EARLIEST 09/12 (1943)
LATEST 05/28 (1949)
EARLIEST 10/17 (2024)
LATEST 04/30 (2025)
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WIND (MPH)
AVERAGE WIND SPEED 7.1
HIGHEST WIND SPEED/DIRECTION 26/280 DATE 08/12
HIGHEST GUST SPEED/DIRECTION 37/320 DATE 08/12
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.28
NUMBER OF DAYS FAIR 20
NUMBER OF DAYS PC 10
NUMBER OF DAYS CLOUDY 1
AVERAGE RH (PERCENT) 72
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 4 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 3
LIGHT RAIN 8 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 13 FOG W/VIS <= 1/4 MILE 2
HAZE 4
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
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SOUTHEAST MICHIGAN CLIMATE SUMMARY FOR AUGUST 2025
AUGUST 2025 MONTHLY STATISTICS AND RANKINGS
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PRECIPITATION
ACTUAL NORMAL DEPARTURE RANKING
DETROIT AREA 1.31" 3.26" -1.95" 21ST DRIEST
FLINT AREA 1.91" 3.16" -1.25" 24TH DRIEST
SAGINAW AREA 3.13" 3.85" -0.72" 51ST WETTEST
PRECIPITATION SINCE JANUARY 1*
ACTUAL NORMAL DEPARTURE RANKING
DETROIT AREA 23.62" 23.75" -0.13" 54TH WETTEST
FLINT AREA 19.61" 22.14" -2.53" 47TH DRIEST
SAGINAW AREA 17.97" 22.27" -4.30" 34TH DRIEST
*NORMAL TO DATE (AS OF AUGUST 31, 2025)
AVERAGE TEMPERATURE
ACTUAL NORMAL DEPARTURE RANKING
DETROIT AREA 71.1 72.3 -1.2 70TH COOLEST
FLINT AREA 68.8 69.1 -0.3 42ND COOLEST
SAGINAW AREA 69.2 69.7 -0.5 57TH COOLEST
AVERAGE HIGH TEMPERATURE
ACTUAL NORMAL DEPARTURE RANKING
DETROIT AREA 80.5 81.4 -0.9 76TH COOLEST
FLINT AREA 80.3 79.9 +0.4 44TH COOLEST
SAGINAW AREA 79.5 80.0 -0.5 50TH COOLEST
AVERAGE LOW TEMPERATURE
ACTUAL NORMAL DEPARTURE RANKING
DETROIT AREA 61.8 63.2 -1.4 71ST COOLEST
FLINT AREA 57.4 58.3 -0.9 38TH COOLEST
SAGINAW AREA 59.0 59.4 -0.4 44TH WARMEST
DETROIT AREA HAS A CLIMATE RECORD DATING TO NOVEMBER 1874 (~151 YEARS)
FLINT AREA HAS A CLIMATE RECORD DATING TO JANUARY 1921 (~105 YEARS)
SAGINAW AREA HAS CLIMATE RECORD DATING TO JANUARY 1912 (~114 YEARS)