- Latitude: 41.54
- Longitude: -87.532
High Temperatures
On June 21 in this location the average high temperature is 81.6 °F (27.6 °C). The lowest recored high temperature was 55.9 °F (13.3 °C) in 1992 and the highest recored high temperature was 98.1 °F (36.7 °C) in 1988. The high temperature is usually* between 76.2 °F (24.6 °C) and 86.9 °F (30.5 °C). About a quarter of the time, the high temperature is less than 76.2 °F (24.6 °C), and another quarter of the time, the high temperature is greater than and 86.9 °F (30.5 °C). About 95% of the time, the high temperature has been between 66.0 °F (18.9 °C) and 97.1 °F (36.2 °C).
Low Temperatures
On June 21 in this location the average low temperature is 64.2 °F (17.9 °C). The lowest recored low temperature was 44.6 °F (7.0 °C) in 2003 and the lowest recored low temperature was 75.9 °F (24.4 °C) in 2025. The low temperature is usually* between 59.4 °F (15.2 °C) and 69.1 °F (20.6 °C). About a quarter of the time, the low temperature is less than 59.4 °F (15.2 °C), and another quarter of the time, the low temperature is greater than and 69.1 °F (20.6 °C). About 95% of the time, the low temperature has been between 50.2 °F (10.1 °C) and 78.3 °F (25.7 °C).
Frost
On June 21 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 2025
- LANSING MUNICIPAL AP — Integrated Surface Dataset (ISD) station ID: 722126 — Weather Bureau Army Navy (WBAN): 04879 — from year 2006 to 2025
- GARY/CHICAGO AIRPORT — 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
- LANSING MUNI — Integrated Surface Dataset (ISD) station ID: 722126 — from year 2004 to 2005
- CHICAGO / CALUMET COAST GUARD — Integrated Surface Dataset (ISD) station ID: 725344 — from year 1994 to 1994
- CALUMET (CGS) — Integrated Surface Dataset (ISD) station ID: 722418 — from year 1987 to 1990