Station information
- Integrated Surface Dataset (ISD) station ID: 722417
- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On October 15 in WILMETTE (CGS) the average high temperature is 69.3 °F (20.7 °C). The lowest recored high temperature was 57.9 °F (14.4 °C) in 1990 and the highest recored high temperature was 81.0 °F (27.2 °C) in 1989. The high temperature is usually* between 63.8 °F (17.7 °C) and 74.8 °F (23.8 °C). About a quarter of the time, the high temperature is less than 63.8 °F (17.7 °C), and another quarter of the time, the high temperature is greater than and 74.8 °F (23.8 °C). About 95% of the time, the high temperature has been between 53.4 °F (11.9 °C) and 85.2 °F (29.5 °C).
Low Temperatures
On October 15 in WILMETTE (CGS) the average low temperature is 52.6 °F (11.5 °C). The lowest recored low temperature was 41.9 °F (5.5 °C) in 1990 and the lowest recored low temperature was 61.9 °F (16.6 °C) in 1989. The low temperature is usually* between 48.3 °F (9.1 °C) and 56.9 °F (13.8 °C). About a quarter of the time, the low temperature is less than 48.3 °F (9.1 °C), and another quarter of the time, the low temperature is greater than and 56.9 °F (13.8 °C). About 95% of the time, the low temperature has been between 40.2 °F (4.5 °C) and 65.1 °F (18.4 °C).
Frost
On October 15 in WILMETTE (CGS) expect the temperatures to drop below freezing for a risk of frost about 0.1% 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:
- WILMETTE (CGS) — Integrated Surface Dataset (ISD) station ID: 722417 — from year 1988 to 1990