- 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 March 20 in CHICAGO O'HARE INTERNATIONAL the average high temperature is 49.0 °F (9.4 °C). The lowest recored high temperature was 21.0 °F (-6.1 °C) in 1965 and the highest recored high temperature was 84.9 °F (29.4 °C) in 2012. The high temperature is usually* between 41.3 °F (5.1 °C) and 56.7 °F (13.7 °C). About a quarter of the time, the high temperature is less than 41.3 °F (5.1 °C), and another quarter of the time, the high temperature is greater than and 56.7 °F (13.7 °C). About 95% of the time, the high temperature has been between 26.5 °F (-3.0 °C) and 71.4 °F (21.9 °C).
Low Temperatures
On March 20 in CHICAGO O'HARE INTERNATIONAL the average low temperature is 30.1 °F (-1.1 °C). The lowest recored low temperature was 0.0 °F (-17.8 °C) in 1965 and the lowest recored low temperature was 62.1 °F (16.7 °C) in 1976. The low temperature is usually* between 23.8 °F (-4.5 °C) and 36.4 °F (2.4 °C). About a quarter of the time, the low temperature is less than 23.8 °F (-4.5 °C), and another quarter of the time, the low temperature is greater than and 36.4 °F (2.4 °C). About 95% of the time, the low temperature has been between 11.9 °F (-11.2 °C) and 48.3 °F (9.1 °C).
Frost
On March 20 in CHICAGO O'HARE INTERNATIONAL expect the temperatures to drop below freezing for a risk of frost about 58.1% 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