- Integrated Surface Dataset (ISD) station ID: 725337
- Country: US
- State: IN
- Latitude: 41.617
- Longitude: -87.417
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 April 12 in GARY/CHICAGO AIRPORT the average high temperature is 59.2 °F (15.1 °C). The lowest recored high temperature was 39.2 °F (4.0 °C) in 1997 and the highest recored high temperature was 82.4 °F (28.0 °C) in 2023. The high temperature is usually* between 51.3 °F (10.7 °C) and 67.2 °F (19.6 °C). About a quarter of the time, the high temperature is less than 51.3 °F (10.7 °C), and another quarter of the time, the high temperature is greater than and 67.2 °F (19.6 °C). About 95% of the time, the high temperature has been between 36.2 °F (2.3 °C) and 82.3 °F (28.0 °C).
Low Temperatures
On April 12 in GARY/CHICAGO AIRPORT the average low temperature is 41.5 °F (5.3 °C). The lowest recored low temperature was 26.6 °F (-3.0 °C) in 2025 and the lowest recored low temperature was 64.4 °F (18.0 °C) in 2006. The low temperature is usually* between 36.2 °F (2.3 °C) and 46.7 °F (8.2 °C). About a quarter of the time, the low temperature is less than 36.2 °F (2.3 °C), and another quarter of the time, the low temperature is greater than and 46.7 °F (8.2 °C). About 95% of the time, the low temperature has been between 26.2 °F (-3.2 °C) and 56.7 °F (13.7 °C).
Frost
On April 12 in GARY/CHICAGO AIRPORT expect the temperatures to drop below freezing for a risk of frost about 11.2% 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:
- GARY/CHICAGO AIRPORT — Integrated Surface Dataset (ISD) station ID: 725337 — Weather Bureau Army Navy (WBAN): 04807 — from year 2006 to 2025
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— Integrated Surface Dataset (ISD) station ID: 725337 — from year 1982 to 2005