Station information
- Integrated Surface Dataset (ISD) station ID: 722417
- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On October 18 in WILMETTE (CGS) the average high temperature is 56.3 °F (13.5 °C). The lowest recored high temperature was 45.0 °F (7.2 °C) in 1989 and the highest recored high temperature was 65.8 °F (18.8 °C) in 1987. The high temperature is usually* between 49.1 °F (9.5 °C) and 63.4 °F (17.5 °C). About a quarter of the time, the high temperature is less than 49.1 °F (9.5 °C), and another quarter of the time, the high temperature is greater than and 63.4 °F (17.5 °C). About 95% of the time, the high temperature has been between 35.5 °F (1.9 °C) and 77.1 °F (25.1 °C).
Low Temperatures
On October 18 in WILMETTE (CGS) the average low temperature is 43.3 °F (6.3 °C). The lowest recored low temperature was 36.9 °F (2.7 °C) in 1989 and the lowest recored low temperature was 52.9 °F (11.6 °C) in 1988. The low temperature is usually* between 36.3 °F (2.4 °C) and 50.3 °F (10.2 °C). About a quarter of the time, the low temperature is less than 36.3 °F (2.4 °C), and another quarter of the time, the low temperature is greater than and 50.3 °F (10.2 °C). About 95% of the time, the low temperature has been between 22.9 °F (-5.0 °C) and 63.7 °F (17.6 °C).
Frost
On October 18 in WILMETTE (CGS) expect the temperatures to drop below freezing for a risk of frost about 13.8% 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:
- WILMETTE (CGS) — Integrated Surface Dataset (ISD) station ID: 722417 — from year 1987 to 1990