December 27 - Chicago - Weather History and Averages

High Temperatures

On December 27 in Chicago, IL (Illinois), USA the average high temperature is 35.4 °F (1.9 °C). The lowest recored high temperature was 7.0 °F (-13.9 °C) in 2017 and the highest recored high temperature was 64.4 °F (18.0 °C) in 2008. The high temperature is usually* between 28.3 °F (-2.1 °C) and 42.5 °F (5.8 °C). About a quarter of the time, the high temperature is less than 28.3 °F (-2.1 °C), and another quarter of the time, the high temperature is greater than and 42.5 °F (5.8 °C). About 95% of the time, the high temperature has been between 14.7 °F (-9.6 °C) and 56.1 °F (13.4 °C).

Low Temperatures

On December 27 in Chicago, IL (Illinois), USA the average low temperature is 21.5 °F (-5.8 °C). The lowest recored low temperature was -18.9 °F (-28.3 °C) in 1950 and the lowest recored low temperature was 52.0 °F (11.1 °C) in 1959. The low temperature is usually* between 13.9 °F (-10.1 °C) and 29.2 °F (-1.6 °C). About a quarter of the time, the low temperature is less than 13.9 °F (-10.1 °C), and another quarter of the time, the low temperature is greater than and 29.2 °F (-1.6 °C). About 95% of the time, the low temperature has been between -0.6 °F (-18.1 °C) and 43.7 °F (6.5 °C).

Frost

On December 27 in Chicago, IL (Illinois), USA expect the temperatures to drop below freezing for a risk of frost about 82.3% 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: