- Latitude: 42.121
- Longitude: -87.905
High Temperatures
On March 30 in this location the average high temperature is 52.6 °F (11.5 °C). The lowest recored high temperature was 26.1 °F (-3.3 °C) in 1969 and the highest recored high temperature was 88.0 °F (31.1 °C) in 1986. The high temperature is usually* between 44.7 °F (7.0 °C) and 60.6 °F (15.9 °C). About a quarter of the time, the high temperature is less than 44.7 °F (7.0 °C), and another quarter of the time, the high temperature is greater than and 60.6 °F (15.9 °C). About 95% of the time, the high temperature has been between 29.5 °F (-1.4 °C) and 75.8 °F (24.3 °C).
Low Temperatures
On March 30 in this location the average low temperature is 33.9 °F (1.1 °C). The lowest recored low temperature was 1.9 °F (-16.7 °C) in 1964 and the lowest recored low temperature was 66.9 °F (19.4 °C) in 1998. The low temperature is usually* between 28.2 °F (-2.1 °C) and 39.7 °F (4.3 °C). About a quarter of the time, the low temperature is less than 28.2 °F (-2.1 °C), and another quarter of the time, the low temperature is greater than and 39.7 °F (4.3 °C). About 95% of the time, the low temperature has been between 17.2 °F (-8.2 °C) and 50.7 °F (10.4 °C).
Frost
On March 30 in this location expect the temperatures to drop below freezing for a risk of frost about 41.1% 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 1947 to 2025
- PALWAUKEE MUNICIPAL ARPT — Integrated Surface Dataset (ISD) station ID: 744665 — Weather Bureau Army Navy (WBAN): 04838 — from year 2006 to 2025
- WAUKEGAN HARBOR — Integrated Surface Dataset (ISD) station ID: 997735 — from year 2007 to 2025
- FOSTER AVE CHICAGO — Integrated Surface Dataset (ISD) station ID: 998497 — from year 2015 to 2019
- PALWAUKEE MUNI — Integrated Surface Dataset (ISD) station ID: 744665 — from year 1996 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 2002 to 2002
- 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 1989 to 1990
- 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