Station information
- Integrated Surface Dataset (ISD) station ID: 722417
- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On September 14 in WILMETTE (CGS) the average high temperature is 69.6 °F (20.9 °C). The lowest recored high temperature was 61.9 °F (16.6 °C) in 1989 and the highest recored high temperature was 77.9 °F (25.5 °C) in 1990. The high temperature is usually* between 64.9 °F (18.3 °C) and 74.3 °F (23.5 °C). About a quarter of the time, the high temperature is less than 64.9 °F (18.3 °C), and another quarter of the time, the high temperature is greater than and 74.3 °F (23.5 °C). About 95% of the time, the high temperature has been between 56.0 °F (13.3 °C) and 83.3 °F (28.5 °C).
Low Temperatures
On September 14 in WILMETTE (CGS) the average low temperature is 58.8 °F (14.9 °C). The lowest recored low temperature was 50.9 °F (10.5 °C) in 1987 and the lowest recored low temperature was 65.8 °F (18.8 °C) in 1990. The low temperature is usually* between 54.6 °F (12.5 °C) and 63.0 °F (17.2 °C). About a quarter of the time, the low temperature is less than 54.6 °F (12.5 °C), and another quarter of the time, the low temperature is greater than and 63.0 °F (17.2 °C). About 95% of the time, the low temperature has been between 46.5 °F (8.1 °C) and 71.1 °F (21.7 °C).
Frost
On September 14 in WILMETTE (CGS) expect the temperatures to drop below freezing for a risk of frost about 0.0% 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