- Latitude: 41.617
- Longitude: -87.417
High Temperatures
On April 12 in this location the average high temperature is 56.4 °F (13.6 °C). The lowest recored high temperature was 31.8 °F (-0.1 °C) in 2025 and the highest recored high temperature was 82.4 °F (28.0 °C) in 2023. The high temperature is usually* between 48.5 °F (9.2 °C) and 64.3 °F (17.9 °C). About a quarter of the time, the high temperature is less than 48.5 °F (9.2 °C), and another quarter of the time, the high temperature is greater than and 64.3 °F (17.9 °C). About 95% of the time, the high temperature has been between 33.6 °F (0.9 °C) and 79.2 °F (26.2 °C).
Low Temperatures
On April 12 in this location the average low temperature is 41.0 °F (5.0 °C). The lowest recored low temperature was 26.6 °F (-3.0 °C) in 2025 and the lowest recored low temperature was 64.4 °F (18.0 °C) in 2006. The low temperature is usually* between 36.5 °F (2.5 °C) and 45.6 °F (7.5 °C). About a quarter of the time, the low temperature is less than 36.5 °F (2.5 °C), and another quarter of the time, the low temperature is greater than and 45.6 °F (7.5 °C). About 95% of the time, the low temperature has been between 27.9 °F (-2.3 °C) and 54.1 °F (12.3 °C).
Frost
On April 12 in this location expect the temperatures to drop below freezing for a risk of frost about 8.8% 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
- BURNS HARBOR — Integrated Surface Dataset (ISD) station ID: 997787 — from year 2007 to 2025
- NORTHERLY ISLAND — Integrated Surface Dataset (ISD) station ID: 998499 — from year 2013 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 2005 to 2005
- 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 1994 to 1996
- CALUMET (CGS) — Integrated Surface Dataset (ISD) station ID: 722418 — from year 1989 to 1990
- CHICAGO MEIGS FIELD — Weather Bureau Army Navy (WBAN): 94866 — from year 1966 to 1970
- DUNNE CRIB IL. — Integrated Surface Dataset (ISD) station ID: 744650 — from year 1944 to 1944