- Latitude: 41.54
- Longitude: -87.532
High Temperatures
On April 12 in this location the average high temperature is 58.4 °F (14.7 °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 50.5 °F (10.3 °C) and 66.3 °F (19.0 °C). About a quarter of the time, the high temperature is less than 50.5 °F (10.3 °C), and another quarter of the time, the high temperature is greater than and 66.3 °F (19.0 °C). About 95% of the time, the high temperature has been between 35.5 °F (2.0 °C) and 81.2 °F (27.4 °C).
Low Temperatures
On April 12 in this location the average low temperature is 40.9 °F (4.9 °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 36.0 °F (2.2 °C) and 45.8 °F (7.6 °C). About a quarter of the time, the low temperature is less than 36.0 °F (2.2 °C), and another quarter of the time, the low temperature is greater than and 45.8 °F (7.6 °C). About 95% of the time, the low temperature has been between 26.6 °F (-3.0 °C) and 55.1 °F (12.8 °C).
Frost
On April 12 in this location expect the temperatures to drop below freezing for a risk of frost about 11.1% 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 2005 to 2005
- 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
- DUNNE CRIB IL. — Integrated Surface Dataset (ISD) station ID: 744650 — from year 1944 to 1944