- Latitude: 41.65
- Longitude: -87.15
High Temperatures
On December 20 in this location the average high temperature is 35.7 °F (2.0 °C). The lowest recored high temperature was 8.1 °F (-13.3 °C) in 1989 and the highest recored high temperature was 61.0 °F (16.1 °C) in 1988. The high temperature is usually* between 29.0 °F (-1.7 °C) and 42.3 °F (5.7 °C). About a quarter of the time, the high temperature is less than 29.0 °F (-1.7 °C), and another quarter of the time, the high temperature is greater than and 42.3 °F (5.7 °C). About 95% of the time, the high temperature has been between 16.3 °F (-8.7 °C) and 55.0 °F (12.8 °C).
Low Temperatures
On December 20 in this location the average low temperature is 23.7 °F (-4.6 °C). The lowest recored low temperature was -6.0 °F (-21.1 °C) in 2000 and the lowest recored low temperature was 48.9 °F (9.4 °C) in 1988. The low temperature is usually* between 15.9 °F (-8.9 °C) and 31.4 °F (-0.3 °C). About a quarter of the time, the low temperature is less than 15.9 °F (-8.9 °C), and another quarter of the time, the low temperature is greater than and 31.4 °F (-0.3 °C). About 95% of the time, the low temperature has been between 1.2 °F (-17.1 °C) and 46.1 °F (7.8 °C).
Frost
On December 20 in this location expect the temperatures to drop below freezing for a risk of frost about 76.7% 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 2004 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
- BURNS HARBOR — Integrated Surface Dataset (ISD) station ID: 997787 — from year 2007 to 2024
- MICHIGAN CITY MUNICIPAL AIRPO — Integrated Surface Dataset (ISD) station ID: 726358 — Weather Bureau Army Navy (WBAN): 00384 — from year 2014 to 2024
- MICHIGAN CITY MUNICIPAL AIRPO — Integrated Surface Dataset (ISD) station ID: 726358 — from year 1977 to 2017
- 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 1989