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Typical weather at station CHICAGO O'HARE INTERNATIONAL on December 30

High Temperatures

On December 30 in CHICAGO O'HARE INTERNATIONAL the average high temperature is 35.1 °F (1.7 °C). The lowest recored high temperature was 7.3 °F (-13.7 °C) in 1963 and the highest recored high temperature was 60.1 °F (15.6 °C) in 2002. The high temperature is usually* between 28.1 °F (-2.2 °C) and 42.2 °F (5.7 °C). About a quarter of the time, the high temperature is less than 28.1 °F (-2.2 °C), and another quarter of the time, the high temperature is greater than and 42.2 °F (5.7 °C). About 95% of the time, the high temperature has been between 14.6 °F (-9.7 °C) and 55.7 °F (13.2 °C).

Low Temperatures

On December 30 in CHICAGO O'HARE INTERNATIONAL the average low temperature is 19.6 °F (-6.9 °C). The lowest recored low temperature was -14.1 °F (-25.6 °C) in 1983 and the lowest recored low temperature was 39.2 °F (4.0 °C) in 2006. The low temperature is usually* between 11.4 °F (-11.4 °C) and 27.8 °F (-2.3 °C). About a quarter of the time, the low temperature is less than 11.4 °F (-11.4 °C), and another quarter of the time, the low temperature is greater than and 27.8 °F (-2.3 °C). About 95% of the time, the low temperature has been between -4.2 °F (-20.1 °C) and 43.4 °F (6.3 °C).

Frost

On December 30 in CHICAGO O'HARE INTERNATIONAL expect the temperatures to drop below freezing for a risk of frost about 84.7% 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: