Station information
- Integrated Surface Dataset (ISD) station ID: 725337
- Country: US
- State: IN
- Latitude: 41.617
- Longitude: -87.4
High Temperatures
On July 20 in GARY CHICAGO the average high temperature is 84.1 °F (28.9 °C). The lowest recored high temperature was 68.0 °F (20.0 °C) in 1996 and the highest recored high temperature was 98.6 °F (37.0 °C) in 2011. The high temperature is usually* between 79.3 °F (26.3 °C) and 88.8 °F (31.6 °C). About a quarter of the time, the high temperature is less than 79.3 °F (26.3 °C), and another quarter of the time, the high temperature is greater than and 88.8 °F (31.6 °C). About 95% of the time, the high temperature has been between 70.2 °F (21.2 °C) and 97.9 °F (36.6 °C).
Low Temperatures
On July 20 in GARY CHICAGO the average low temperature is 68.3 °F (20.2 °C). The lowest recored low temperature was 55.4 °F (13.0 °C) in 2009 and the lowest recored low temperature was 77.0 °F (25.0 °C) in 2022. The low temperature is usually* between 64.4 °F (18.0 °C) and 72.2 °F (22.3 °C). About a quarter of the time, the low temperature is less than 64.4 °F (18.0 °C), and another quarter of the time, the low temperature is greater than and 72.2 °F (22.3 °C). About 95% of the time, the low temperature has been between 56.9 °F (13.8 °C) and 79.7 °F (26.5 °C).
Frost
On July 20 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