Station information
- Integrated Surface Dataset (ISD) station ID: 725337
- Country: US
- State: IN
- Latitude: 41.617
- Longitude: -87.4
High Temperatures
On July 18 in GARY CHICAGO the average high temperature is 84.9 °F (29.4 °C). The lowest recored high temperature was 69.8 °F (21.0 °C) in 2009 and the highest recored high temperature was 95.0 °F (35.0 °C) in 2013. The high temperature is usually* between 80.6 °F (27.0 °C) and 89.2 °F (31.8 °C). About a quarter of the time, the high temperature is less than 80.6 °F (27.0 °C), and another quarter of the time, the high temperature is greater than and 89.2 °F (31.8 °C). About 95% of the time, the high temperature has been between 72.4 °F (22.4 °C) and 97.4 °F (36.3 °C).
Low Temperatures
On July 18 in GARY CHICAGO the average low temperature is 68.2 °F (20.1 °C). The lowest recored low temperature was 53.6 °F (12.0 °C) in 2023 and the lowest recored low temperature was 80.6 °F (27.0 °C) in 2011. The low temperature is usually* between 64.0 °F (17.8 °C) and 72.3 °F (22.4 °C). About a quarter of the time, the low temperature is less than 64.0 °F (17.8 °C), and another quarter of the time, the low temperature is greater than and 72.3 °F (22.4 °C). About 95% of the time, the low temperature has been between 56.2 °F (13.4 °C) and 80.2 °F (26.8 °C).
Frost
On July 18 in GARY CHICAGO expect the temperatures to drop below freezing for a risk of frost about 0.0% 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:
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— Integrated Surface Dataset (ISD) station ID: 725337 — Weather Bureau Army Navy (WBAN): 04807 — from year 2006 to 2025 - GARY CHICAGO — Integrated Surface Dataset (ISD) station ID: 725337 — from year 1982 to 2005