Station information
- Integrated Surface Dataset (ISD) station ID: 722417
- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On October 1 in WILMETTE (CGS) the average high temperature is 64.1 °F (17.8 °C). The lowest recored high temperature was 63.9 °F (17.7 °C) in 1989 and the highest recored high temperature was 70.9 °F (21.6 °C) in 1987. The high temperature is usually* between 59.6 °F (15.3 °C) and 68.6 °F (20.4 °C). About a quarter of the time, the high temperature is less than 59.6 °F (15.3 °C), and another quarter of the time, the high temperature is greater than and 68.6 °F (20.4 °C). About 95% of the time, the high temperature has been between 51.0 °F (10.5 °C) and 77.3 °F (25.1 °C).
Low Temperatures
On October 1 in WILMETTE (CGS) the average low temperature is 50.6 °F (10.3 °C). The lowest recored low temperature was 40.8 °F (4.9 °C) in 1990 and the lowest recored low temperature was 61.9 °F (16.6 °C) in 1988. The low temperature is usually* between 44.1 °F (6.7 °C) and 57.1 °F (13.9 °C). About a quarter of the time, the low temperature is less than 44.1 °F (6.7 °C), and another quarter of the time, the low temperature is greater than and 57.1 °F (13.9 °C). About 95% of the time, the low temperature has been between 31.8 °F (-0.1 °C) and 69.4 °F (20.8 °C).
Frost
On October 1 in WILMETTE (CGS) expect the temperatures to drop below freezing for a risk of frost about 2.6% 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:
- WILMETTE (CGS) — Integrated Surface Dataset (ISD) station ID: 722417 — from year 1987 to 1990