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Typical weather in Chicago, IL (Illinois), USA on May 31

High Temperatures

On May 31 in Chicago, IL (Illinois), USA the average high temperature is 76.2 °F (24.6 °C). The lowest recored high temperature was 46.9 °F (8.3 °C) in 2015 and the highest recored high temperature was 93.9 °F (34.4 °C) in 1988. The high temperature is usually* between 69.9 °F (21.1 °C) and 82.6 °F (28.1 °C). About a quarter of the time, the high temperature is less than 69.9 °F (21.1 °C), and another quarter of the time, the high temperature is greater than and 82.6 °F (28.1 °C). About 95% of the time, the high temperature has been between 57.8 °F (14.3 °C) and 94.7 °F (34.8 °C).

Low Temperatures

On May 31 in Chicago, IL (Illinois), USA the average low temperature is 56.5 °F (13.6 °C). The lowest recored low temperature was 36.0 °F (2.2 °C) in 1996 and the lowest recored low temperature was 77.0 °F (25.0 °C) in 2011. The low temperature is usually* between 51.0 °F (10.6 °C) and 62.1 °F (16.7 °C). About a quarter of the time, the low temperature is less than 51.0 °F (10.6 °C), and another quarter of the time, the low temperature is greater than and 62.1 °F (16.7 °C). About 95% of the time, the low temperature has been between 40.5 °F (4.7 °C) and 72.6 °F (22.6 °C).

Frost

On May 31 in Chicago, IL (Illinois), USA expect the temperatures to drop below freezing for a risk of frost about 0.1% 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: