- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On March 12 in this location the average high temperature is 44.1 °F (6.7 °C). The lowest recored high temperature was 22.1 °F (-5.5 °C) in 1984 and the highest recored high temperature was 79.0 °F (26.1 °C) in 1990. The high temperature is usually* between 36.1 °F (2.3 °C) and 52.1 °F (11.1 °C). About a quarter of the time, the high temperature is less than 36.1 °F (2.3 °C), and another quarter of the time, the high temperature is greater than and 52.1 °F (11.1 °C). About 95% of the time, the high temperature has been between 20.9 °F (-6.2 °C) and 67.3 °F (19.6 °C).
Low Temperatures
On March 12 in this location the average low temperature is 30.5 °F (-0.8 °C). The lowest recored low temperature was -2.0 °F (-18.9 °C) in 1948 and the lowest recored low temperature was 61.0 °F (16.1 °C) in 1990. The low temperature is usually* between 24.4 °F (-4.2 °C) and 36.6 °F (2.6 °C). About a quarter of the time, the low temperature is less than 24.4 °F (-4.2 °C), and another quarter of the time, the low temperature is greater than and 36.6 °F (2.6 °C). About 95% of the time, the low temperature has been between 12.8 °F (-10.7 °C) and 48.2 °F (9.0 °C).
Frost
On March 12 in this location expect the temperatures to drop below freezing for a risk of frost about 56.6% 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 — Integrated Surface Dataset (ISD) station ID: 997338 — 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
- CHICAGO/MEIGS — Integrated Surface Dataset (ISD) station ID: 725346 — from year 2000 to 2003
- CHICAGO/MEIGS — Integrated Surface Dataset (ISD) station ID: 725346 — Weather Bureau Army Navy (WBAN): 94866 — from year 1973 to 1999
- NAVAL AIR STATION — Integrated Surface Dataset (ISD) station ID: 725306 — Weather Bureau Army Navy (WBAN): 14855 — from year 1973 to 1994
- WILMETTE (MARINES)& — Integrated Surface Dataset (ISD) station ID: 725307 — from year 1976 to 1994
- WILMETTE (CGS) — Integrated Surface Dataset (ISD) station ID: 722417 — from year 1988 to 1990
- NAVAL AIR STATION — Weather Bureau Army Navy (WBAN): 14855 — from year 1946 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