- 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 12 in CHICAGO O'HARE INTERNATIONAL the average high temperature is 46.5 °F (8.1 °C). The lowest recored high temperature was 23.4 °F (-4.8 °C) in 1948 and the highest recored high temperature was 81.0 °F (27.2 °C) in 1990. The high temperature is usually* between 38.1 °F (3.4 °C) and 54.9 °F (12.7 °C). About a quarter of the time, the high temperature is less than 38.1 °F (3.4 °C), and another quarter of the time, the high temperature is greater than and 54.9 °F (12.7 °C). About 95% of the time, the high temperature has been between 22.2 °F (-5.5 °C) and 70.9 °F (21.6 °C).
Low Temperatures
On March 12 in CHICAGO O'HARE INTERNATIONAL the average low temperature is 27.4 °F (-2.6 °C). The lowest recored low temperature was -1.7 °F (-18.7 °C) in 1948 and the lowest recored low temperature was 60.1 °F (15.6 °C) in 1990. The low temperature is usually* between 20.6 °F (-6.3 °C) and 34.2 °F (1.2 °C). About a quarter of the time, the low temperature is less than 20.6 °F (-6.3 °C), and another quarter of the time, the low temperature is greater than and 34.2 °F (1.2 °C). About 95% of the time, the low temperature has been between 7.6 °F (-13.6 °C) and 47.2 °F (8.4 °C).
Frost
On March 12 in CHICAGO O'HARE INTERNATIONAL expect the temperatures to drop below freezing for a risk of frost about 67.6% 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: