Station information
- Integrated Surface Dataset (ISD) station ID: 725344
- Country: US
- Latitude: 41.72
- Longitude: -87.53
High Temperatures
On September 20 in CHICAGO / CALUMET COAST GUARD the average high temperature is 66.9 °F (19.4 °C). The lowest recored high temperature was 66.9 °F (19.4 °C) in 1995 and the highest recored high temperature was 66.9 °F (19.4 °C) in 1995. The high temperature is usually* between 62.2 °F (16.8 °C) and 71.6 °F (22.0 °C). About a quarter of the time, the high temperature is less than 62.2 °F (16.8 °C), and another quarter of the time, the high temperature is greater than and 71.6 °F (22.0 °C). About 95% of the time, the high temperature has been between 53.3 °F (11.8 °C) and 80.5 °F (26.9 °C).
Low Temperatures
On September 20 in CHICAGO / CALUMET COAST GUARD the average low temperature is 55.9 °F (13.3 °C). The lowest recored low temperature was 56.8 °F (13.8 °C) in 1995 and the lowest recored low temperature was 56.8 °F (13.8 °C) in 1995. The low temperature is usually* between 49.8 °F (9.9 °C) and 62.0 °F (16.7 °C). About a quarter of the time, the low temperature is less than 49.8 °F (9.9 °C), and another quarter of the time, the low temperature is greater than and 62.0 °F (16.7 °C). About 95% of the time, the low temperature has been between 38.3 °F (3.5 °C) and 73.6 °F (23.1 °C).
Frost
On September 20 in CHICAGO / CALUMET COAST GUARD expect the temperatures to drop below freezing for a risk of frost about 0.4% 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 / CALUMET COAST GUARD — Integrated Surface Dataset (ISD) station ID: 725344 — from year 1995 to 1995