April 9 - CHICAGO - Weather History and Averages

Station: CHICAGO (2005 to 2025)
Country: US
State: IL
Latitude: 42.0
Longitude: -87.5

High Temperatures

On April 9 in CHICAGO the average high temperature is 52.4 °F (11.3 °C). The lowest recored high temperature was 34.7 °F (1.5 °C) in 2018 and the highest recored high temperature was 72.7 °F (22.6 °C) in 2024. The high temperature is usually^* between 43.8 °F (6.5 °C) and 61.1 °F (16.1 °C). About a quarter of the time, the high temperature is less than 43.8 °F (6.5 °C), and another quarter of the time, the high temperature is greater than and 61.1 °F (16.1 °C). About 95% of the time, the high temperature has been between 27.4 °F (-2.6 °C) and 77.5 °F (25.3 °C).

Low Temperatures

On April 9 in CHICAGO the average low temperature is 40.0 °F (4.4 °C). The lowest recored low temperature was 25.9 °F (-3.4 °C) in 2016 and the lowest recored low temperature was 58.6 °F (14.8 °C) in 2024. The low temperature is usually^* between 35.1 °F (1.7 °C) and 44.8 °F (7.1 °C). About a quarter of the time, the low temperature is less than 35.1 °F (1.7 °C), and another quarter of the time, the low temperature is greater than and 44.8 °F (7.1 °C). About 95% of the time, the low temperature has been between 25.8 °F (-3.4 °C) and 54.1 °F (12.3 °C).

Frost

On April 9 in CHICAGO expect the temperatures to drop below freezing for a risk of frost about 13.5% of the time.

^{Usually* in this context means around 50% of the
time, assuming a normal distribution of values.}

Data Source(s)

The data used to compute the average high/low temperatures for this location were taken from the following stations:

CHICAGO — Integrated Surface Dataset (ISD) station ID: 997338 — from year 2005 to 2025

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