Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KDTX 210538
CLIMBS
CLIMATE REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
138 AM EDT THU AUG 21 2025
...................................
...THE TRI CITIES MI CLIMATE SUMMARY FOR AUGUST 20 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1912 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 75 337 PM 100 1916 80 -5 71
MINIMUM 61 624 AM 41 1977 59 2 50
AVERAGE 68 69 -1 61
PRECIPITATION (IN)
YESTERDAY 0.00 1.68 2016 0.13 -0.13 0.00
MONTH TO DATE 2.75 2.56 0.19 1.91
SINCE JUN 1 7.25 8.67 -1.42 7.50
SINCE JAN 1 17.59 20.98 -3.39 18.17
SNOWFALL (IN)
YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 4
MONTH TO DATE 0 5 -5 7
SINCE JUN 1 19 61 -42 35
SINCE JUL 1 1 14 -13 10
COOLING
YESTERDAY 3 5 -2 0
MONTH TO DATE 156 116 40 116
SINCE JUN 1 650 472 178 548
SINCE JAN 1 675 516 159 592
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 10.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 500 AM
LOWEST 60 300 PM
AVERAGE 79
..........................................................
THE TRI CITIES MI CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 98 1955
MINIMUM TEMPERATURE (F) 59 38 1950
SUNRISE AND SUNSET
AUGUST 21 2025........SUNRISE 648 AM EDT SUNSET 830 PM EDT
AUGUST 22 2025........SUNRISE 649 AM EDT SUNSET 828 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$