- Latitude: 42.121
- Longitude: -87.905
High Temperatures
On October 31 in this location the average high temperature is 58.8 °F (14.9 °C). The lowest recored high temperature was 36.0 °F (2.2 °C) in 2023 and the highest recored high temperature was 84.0 °F (28.9 °C) in 1950. The high temperature is usually* between 52.1 °F (11.2 °C) and 65.5 °F (18.6 °C). About a quarter of the time, the high temperature is less than 52.1 °F (11.2 °C), and another quarter of the time, the high temperature is greater than and 65.5 °F (18.6 °C). About 95% of the time, the high temperature has been between 39.3 °F (4.1 °C) and 78.2 °F (25.7 °C).
Low Temperatures
On October 31 in this location the average low temperature is 41.0 °F (5.0 °C). The lowest recored low temperature was 21.0 °F (-6.1 °C) in 1988 and the lowest recored low temperature was 64.9 °F (18.3 °C) in 1974. The low temperature is usually* between 35.4 °F (1.9 °C) and 46.7 °F (8.2 °C). About a quarter of the time, the low temperature is less than 35.4 °F (1.9 °C), and another quarter of the time, the low temperature is greater than and 46.7 °F (8.2 °C). About 95% of the time, the low temperature has been between 24.6 °F (-4.1 °C) and 57.5 °F (14.2 °C).
Frost
On October 31 in this location expect the temperatures to drop below freezing for a risk of frost about 14.1% 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:
- CHICAGO O'HARE INTERNATIONAL — Integrated Surface Dataset (ISD) station ID: 725300 — Weather Bureau Army Navy (WBAN): 94846 — from year 1946 to 2024
- PALWAUKEE MUNICIPAL ARPT — Integrated Surface Dataset (ISD) station ID: 744665 — Weather Bureau Army Navy (WBAN): 04838 — from year 2006 to 2024
- WAUKEGAN HARBOR — Integrated Surface Dataset (ISD) station ID: 997735 — from year 2006 to 2024
- FOSTER AVE CHICAGO — Integrated Surface Dataset (ISD) station ID: 998497 — from year 2015 to 2020
- PALWAUKEE MUNI — Integrated Surface Dataset (ISD) station ID: 744665 — from year 1995 to 2005
- ANN ARBOR MUNICIPAL — Integrated Surface Dataset (ISD) station ID: 725374 — from year 1999 to 2005
- CHIGAGO-WAUKEE ARPT — Integrated Surface Dataset (ISD) station ID: 725339 — from year 2001 to 2001
- NAVAL AIR STATION — Integrated Surface Dataset (ISD) station ID: 725306 — Weather Bureau Army Navy (WBAN): 14855 — from year 1973 to 1994
- WILMETTE (CGS) — Integrated Surface Dataset (ISD) station ID: 722417 — from year 1987 to 1990
- WILMETTE (MARINES)& — Integrated Surface Dataset (ISD) station ID: 725307 — from year 1976 to 1977
- NAVAL AIR STATION — Weather Bureau Army Navy (WBAN): 14855 — from year 1945 to 1972
- CHICAGO OHARE INTL AP — Weather Bureau Army Navy (WBAN): 94846 — from year 1970 to 1972
- PARK RIDGE AF — Weather Bureau Army Navy (WBAN): 14810 — from year 1949 to 1958