United States · 1991–2020 normal

Collinsville in
September.

Typical September weather in Collinsville: 31.1°C by day, 18.1°C at night, 81 mm of rain over 5.6 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high31.1°C
Typical low18.1°C
Rain81 mm
Wet days5.6

Comfort score 62 this month (October leads the year at 77). Daylight is calculated as 12 h 20 from latitude 32.50°.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 4422398
NOAA station
USW00013865 · MERIDIAN KEY FLD
Station distance
20.2 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.