United States · 1991–2020 normal

Blue Island in
February.

Typical February weather in Blue Island: 2.5°C by day, -5.3°C at night, 54 mm of rain over 7.1 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high2.5°C
Typical low-5.3°C
Rain54 mm
Wet days7.1

Comfort score 5 this month (September leads the year at 87). Daylight is calculated as 10 h 32 from latitude 41.66°. Open-water sea temperature is 2.0°C (25 km from the place centre).

Event window

Frost-level nights in February

The measured night-time normal is -5.3°C, so frost is typical rather than exceptional this month.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 4885186
NOAA station
USC00111577 · CHICAGO MIDWAY AP 3SW
Station distance
12 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.