- 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 April 12 in CHICAGO O'HARE INTERNATIONAL the average high temperature is 59.5 °F (15.3 °C). The lowest recored high temperature was 36.0 °F (2.2 °C) in 1997 and the highest recored high temperature was 84.9 °F (29.4 °C) in 1977. The high temperature is usually* between 51.5 °F (10.8 °C) and 67.5 °F (19.7 °C). About a quarter of the time, the high temperature is less than 51.5 °F (10.8 °C), and another quarter of the time, the high temperature is greater than and 67.5 °F (19.7 °C). About 95% of the time, the high temperature has been between 36.3 °F (2.4 °C) and 82.7 °F (28.1 °C).
Low Temperatures
On April 12 in CHICAGO O'HARE INTERNATIONAL the average low temperature is 37.7 °F (3.2 °C). The lowest recored low temperature was 18.3 °F (-7.6 °C) in 1957 and the lowest recored low temperature was 63.0 °F (17.2 °C) in 1971. The low temperature is usually* between 32.1 °F (0.0 °C) and 43.4 °F (6.3 °C). About a quarter of the time, the low temperature is less than 32.1 °F (0.0 °C), and another quarter of the time, the low temperature is greater than and 43.4 °F (6.3 °C). About 95% of the time, the low temperature has been between 21.3 °F (-5.9 °C) and 54.1 °F (12.3 °C).
Frost
On April 12 in CHICAGO O'HARE INTERNATIONAL expect the temperatures to drop below freezing for a risk of frost about 24.8% 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