December 1 - CHICAGO - Weather History and Averages

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

High Temperatures

On December 1 in CHICAGO the average high temperature is 42.5 °F (5.8 °C). The lowest recored high temperature was 28.8 °F (-1.8 °C) in 2005 and the highest recored high temperature was 56.3 °F (13.5 °C) in 2012. The high temperature is usually^* between 36.3 °F (2.4 °C) and 48.6 °F (9.2 °C). About a quarter of the time, the high temperature is less than 36.3 °F (2.4 °C), and another quarter of the time, the high temperature is greater than and 48.6 °F (9.2 °C). About 95% of the time, the high temperature has been between 24.6 °F (-4.1 °C) and 60.3 °F (15.7 °C).

Low Temperatures

On December 1 in CHICAGO the average low temperature is 32.2 °F (0.1 °C). The lowest recored low temperature was 17.4 °F (-8.1 °C) in 2014 and the lowest recored low temperature was 43.0 °F (6.1 °C) in 2023. The low temperature is usually^* between 26.7 °F (-3.0 °C) and 37.7 °F (3.2 °C). About a quarter of the time, the low temperature is less than 26.7 °F (-3.0 °C), and another quarter of the time, the low temperature is greater than and 37.7 °F (3.2 °C). About 95% of the time, the low temperature has been between 16.2 °F (-8.8 °C) and 48.2 °F (9.0 °C).

Frost

On December 1 in CHICAGO expect the temperatures to drop below freezing for a risk of frost about 49.0% 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 2023

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