United States · 1991–2020 normal

Decatur in
August.

Typical August weather in Decatur: 27.1°C by day, 14.4°C at night, 105 mm of rain over 7.8 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high27.1°C
Typical low14.4°C
Rain105 mm
Wet days7.8

Comfort score 75 this month (September leads the year at 79). Daylight is calculated as 13 h 53 from latitude 42.11°. Open-water sea temperature is 22.1°C (44 km from the place centre).

Event window

Warm sea in August

The nearest open-water NOAA OISST 1991–2020 cell averages 22.1°C in August. A sheltered bay can run warmer than that open-water cell.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 4990524
NOAA station
USC00202250 · DOWAGIAC 1 W
Station distance
18.8 km from the place centre
Coverage
Strong coverage · 30 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.