- Latitude: 41.65
- Longitude: -87.15
High Temperatures
On September 20 in this location the average high temperature is 74.5 °F (23.6 °C). The lowest recored high temperature was 54.9 °F (12.7 °C) in 1991 and the highest recored high temperature was 95.0 °F (35.0 °C) in 2018. The high temperature is usually* between 68.5 °F (20.3 °C) and 80.5 °F (26.9 °C). About a quarter of the time, the high temperature is less than 68.5 °F (20.3 °C), and another quarter of the time, the high temperature is greater than and 80.5 °F (26.9 °C). About 95% of the time, the high temperature has been between 57.1 °F (13.9 °C) and 91.9 °F (33.3 °C).
Low Temperatures
On September 20 in this location the average low temperature is 57.6 °F (14.2 °C). The lowest recored low temperature was 39.2 °F (4.0 °C) in 2020 and the lowest recored low temperature was 75.9 °F (24.4 °C) in 1978. The low temperature is usually* between 52.7 °F (11.5 °C) and 62.4 °F (16.9 °C). About a quarter of the time, the low temperature is less than 52.7 °F (11.5 °C), and another quarter of the time, the low temperature is greater than and 62.4 °F (16.9 °C). About 95% of the time, the low temperature has been between 43.4 °F (6.3 °C) and 71.7 °F (22.1 °C).
Frost
On September 20 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:
- 9087044 - CALUMET IL — Integrated Surface Dataset (ISD) station ID: 997255 — from year 2005 to 2024
- MICHIGAN CITY — Integrated Surface Dataset (ISD) station ID: 997339 — from year 2005 to 2024
- PORTER COUNTY MUNICIPAL AIRPO — Integrated Surface Dataset (ISD) station ID: 725327 — Weather Bureau Army Navy (WBAN): 04846 — from year 2006 to 2024
- GARY/CHICAGO AIRPORT — Integrated Surface Dataset (ISD) station ID: 725337 — Weather Bureau Army Navy (WBAN): 04807 — from year 2006 to 2024
- MICHIGAN CITY MUNICIPAL AIRPO — Integrated Surface Dataset (ISD) station ID: 726358 — Weather Bureau Army Navy (WBAN): 00384 — from year 2014 to 2024
- BURNS HARBOR — Integrated Surface Dataset (ISD) station ID: 997787 — from year 2007 to 2023
- MICHIGAN CITY MUNICIPAL AIRPO — Integrated Surface Dataset (ISD) station ID: 726358 — from year 1977 to 2016
- GARY CHICAGO — Integrated Surface Dataset (ISD) station ID: 725337 — from year 1981 to 2005
- PORTER CO MUNI — Integrated Surface Dataset (ISD) station ID: 725327 — from year 1999 to 2005
- 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 1988