- Latitude: 41.786
- Longitude: -87.752
High Temperatures
On July 12 in this location the average high temperature is 83.9 °F (28.8 °C). The lowest recored high temperature was 65.8 °F (18.8 °C) in 1990 and the highest recored high temperature was 97.0 °F (36.1 °C) in 1995. The high temperature is usually* between 80.0 °F (26.7 °C) and 87.8 °F (31.0 °C). About a quarter of the time, the high temperature is less than 80.0 °F (26.7 °C), and another quarter of the time, the high temperature is greater than and 87.8 °F (31.0 °C). About 95% of the time, the high temperature has been between 72.5 °F (22.5 °C) and 95.2 °F (35.1 °C).
Low Temperatures
On July 12 in this location the average low temperature is 66.0 °F (18.9 °C). The lowest recored low temperature was 51.1 °F (10.6 °C) in 1978 and the lowest recored low temperature was 83.8 °F (28.8 °C) in 2016. The low temperature is usually* between 62.7 °F (17.1 °C) and 69.2 °F (20.7 °C). About a quarter of the time, the low temperature is less than 62.7 °F (17.1 °C), and another quarter of the time, the low temperature is greater than and 69.2 °F (20.7 °C). About 95% of the time, the low temperature has been between 56.6 °F (13.6 °C) and 75.4 °F (24.1 °C).
Frost
On July 12 in this location 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:
- CHICAGO O'HARE INTERNATIONAL — Integrated Surface Dataset (ISD) station ID: 725300 — Weather Bureau Army Navy (WBAN): 94846 — from year 1947 to 2025
- CHICAGO MIDWAY INTL ARPT — Integrated Surface Dataset (ISD) station ID: 725340 — Weather Bureau Army Navy (WBAN): 14819 — from year 1973 to 2025
- 9087044 - CALUMET IL — Integrated Surface Dataset (ISD) station ID: 997255 — from year 2005 to 2025
- NORTHERLY ISLAND — Integrated Surface Dataset (ISD) station ID: 998499 — from year 2012 to 2025
- FOSTER AVE CHICAGO — Integrated Surface Dataset (ISD) station ID: 998497 — from year 2012 to 2019
- CHICAGO/MEIGS — Integrated Surface Dataset (ISD) station ID: 725346 — from year 2000 to 2002
- CHICAGO/MEIGS — Integrated Surface Dataset (ISD) station ID: 725346 — Weather Bureau Army Navy (WBAN): 94866 — from year 1973 to 1999
- CHICAGO / CALUMET COAST GUARD — Integrated Surface Dataset (ISD) station ID: 725344 — from year 1995 to 1995
- CALUMET (CGS) — Integrated Surface Dataset (ISD) station ID: 722418 — from year 1987 to 1990
- CHICAGO MIDWAY AP — Weather Bureau Army Navy (WBAN): 14819 — from year 1948 to 1972
- CHICAGO OHARE INTL AP — Weather Bureau Army Navy (WBAN): 94846 — from year 1970 to 1972
- CHICAGO MEIGS FIELD — Weather Bureau Army Navy (WBAN): 94866 — from year 1966 to 1969
- PARK RIDGE AF — Weather Bureau Army Navy (WBAN): 14810 — from year 1949 to 1958