- Weather Bureau Army Navy (WBAN): 94846
- Country: US
- State: IL
- Latitude: 41.96
- Longitude: -87.932
An Integrated Surface Dataset (ISD) station ID was found for this station. Newer data may be available at the ISD page.
High Temperatures
On February 20 in CHICAGO O'HARE INTERNATIONAL the average high temperature is 39.5 °F (4.2 °C). The lowest recored high temperature was 17.1 °F (-8.3 °C) in 2015 and the highest recored high temperature was 70.0 °F (21.1 °C) in 2017. The high temperature is usually* between 31.6 °F (-0.2 °C) and 47.5 °F (8.6 °C). About a quarter of the time, the high temperature is less than 31.6 °F (-0.2 °C), and another quarter of the time, the high temperature is greater than and 47.5 °F (8.6 °C). About 95% of the time, the high temperature has been between 16.5 °F (-8.6 °C) and 62.6 °F (17.0 °C).
Low Temperatures
On February 20 in CHICAGO O'HARE INTERNATIONAL the average low temperature is 20.9 °F (-6.2 °C). The lowest recored low temperature was -8.0 °F (-22.2 °C) in 2015 and the lowest recored low temperature was 48.4 °F (9.1 °C) in 1954. The low temperature is usually* between 12.8 °F (-10.7 °C) and 29.0 °F (-1.7 °C). About a quarter of the time, the low temperature is less than 12.8 °F (-10.7 °C), and another quarter of the time, the low temperature is greater than and 29.0 °F (-1.7 °C). About 95% of the time, the low temperature has been between -2.7 °F (-19.3 °C) and 44.4 °F (6.9 °C).
Frost
On February 20 in CHICAGO O'HARE INTERNATIONAL expect the temperatures to drop below freezing for a risk of frost about 82.2% of the time.
Data Source(s)
The data used to compute the average high/low temperatures for this location were taken from the following stations:
- CHICAGO O'HARE INTERNATIONAL — Integrated Surface Dataset (ISD) station ID: 725300 — Weather Bureau Army Navy (WBAN): 94846 — from year 1947 to 2025
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— Weather Bureau Army Navy (WBAN): 94846 — from year 1970 to 1972