- Latitude: 41.72
- Longitude: -87.53
High Temperatures
On May 18 in this location the average high temperature is 71.1 °F (21.7 °C). The lowest recored high temperature was 46.0 °F (7.8 °C) in 1969 and the highest recored high temperature was 93.9 °F (34.4 °C) in 1996. The high temperature is usually* between 63.7 °F (17.6 °C) and 78.4 °F (25.8 °C). About a quarter of the time, the high temperature is less than 63.7 °F (17.6 °C), and another quarter of the time, the high temperature is greater than and 78.4 °F (25.8 °C). About 95% of the time, the high temperature has been between 49.7 °F (9.8 °C) and 92.4 °F (33.6 °C).
Low Temperatures
On May 18 in this location the average low temperature is 52.4 °F (11.3 °C). The lowest recored low temperature was 34.0 °F (1.1 °C) in 2002 and the lowest recored low temperature was 74.8 °F (23.8 °C) in 1996. The low temperature is usually* between 47.2 °F (8.5 °C) and 57.5 °F (14.2 °C). About a quarter of the time, the low temperature is less than 47.2 °F (8.5 °C), and another quarter of the time, the low temperature is greater than and 57.5 °F (14.2 °C). About 95% of the time, the low temperature has been between 37.4 °F (3.0 °C) and 67.4 °F (19.6 °C).
Frost
On May 18 in this location expect the temperatures to drop below freezing for a risk of frost about 0.4% 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:
- CHICAGO MIDWAY INTL ARPT — Integrated Surface Dataset (ISD) station ID: 725340 — Weather Bureau Army Navy (WBAN): 14819 — from year 1973 to 2025
- 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
- FOSTER AVE CHICAGO — Integrated Surface Dataset (ISD) station ID: 998497 — from year 2015 to 2019
- 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 1988 to 1990
- CHICAGO MIDWAY AP — Weather Bureau Army Navy (WBAN): 14819 — from year 1948 to 1972
- 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