- Integrated Surface Dataset (ISD) station ID: 725300
- Country: US
- State: IL
- Latitude: 41.96
- Longitude: -87.932
A Weather Bureau Army Navy (WBAN) station ID was found for this station. Older data may be available at the WBAN page.
High Temperatures
On March 31 in CHICAGO O'HARE INTERNATIONAL the average high temperature is 54.9 °F (12.7 °C). The lowest recored high temperature was 33.4 °F (0.8 °C) in 1969 and the highest recored high temperature was 86.0 °F (30.0 °C) in 1981. The high temperature is usually* between 47.0 °F (8.4 °C) and 62.7 °F (17.1 °C). About a quarter of the time, the high temperature is less than 47.0 °F (8.4 °C), and another quarter of the time, the high temperature is greater than and 62.7 °F (17.1 °C). About 95% of the time, the high temperature has been between 32.1 °F (0.1 °C) and 77.7 °F (25.4 °C).
Low Temperatures
On March 31 in CHICAGO O'HARE INTERNATIONAL the average low temperature is 33.8 °F (1.0 °C). The lowest recored low temperature was 12.0 °F (-11.1 °C) in 1969 and the lowest recored low temperature was 61.0 °F (16.1 °C) in 1967. The low temperature is usually* between 27.7 °F (-2.4 °C) and 39.9 °F (4.4 °C). About a quarter of the time, the low temperature is less than 27.7 °F (-2.4 °C), and another quarter of the time, the low temperature is greater than and 39.9 °F (4.4 °C). About 95% of the time, the low temperature has been between 16.2 °F (-8.8 °C) and 51.4 °F (10.8 °C).
Frost
On March 31 in CHICAGO O'HARE INTERNATIONAL expect the temperatures to drop below freezing for a risk of frost about 42.0% 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: