- 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 February 18 in CHICAGO O'HARE INTERNATIONAL the average high temperature is 38.1 °F (3.4 °C). The lowest recored high temperature was 11.3 °F (-11.5 °C) in 1958 and the highest recored high temperature was 70.0 °F (21.1 °C) in 2017. The high temperature is usually* between 30.4 °F (-0.9 °C) and 45.8 °F (7.7 °C). About a quarter of the time, the high temperature is less than 30.4 °F (-0.9 °C), and another quarter of the time, the high temperature is greater than and 45.8 °F (7.7 °C). About 95% of the time, the high temperature has been between 15.7 °F (-9.1 °C) and 60.5 °F (15.8 °C).
Low Temperatures
On February 18 in CHICAGO O'HARE INTERNATIONAL the average low temperature is 19.8 °F (-6.8 °C). The lowest recored low temperature was -7.1 °F (-21.7 °C) in 2006 and the lowest recored low temperature was 44.1 °F (6.7 °C) in 2017. The low temperature is usually* between 11.7 °F (-11.3 °C) and 28.0 °F (-2.2 °C). About a quarter of the time, the low temperature is less than 11.7 °F (-11.3 °C), and another quarter of the time, the low temperature is greater than and 28.0 °F (-2.2 °C). About 95% of the time, the low temperature has been between -3.8 °F (-19.9 °C) and 43.5 °F (6.4 °C).
Frost
On February 18 in CHICAGO O'HARE INTERNATIONAL expect the temperatures to drop below freezing for a risk of frost about 84.3% 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: