Station information
- Integrated Surface Dataset (ISD) station ID: 722417
- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On September 9 in WILMETTE (CGS) the average high temperature is 75.1 °F (23.9 °C). The lowest recored high temperature was 70.0 °F (21.1 °C) in 1987 and the highest recored high temperature was 79.9 °F (26.6 °C) in 1988. The high temperature is usually* between 71.5 °F (21.9 °C) and 78.7 °F (25.9 °C). About a quarter of the time, the high temperature is less than 71.5 °F (21.9 °C), and another quarter of the time, the high temperature is greater than and 78.7 °F (25.9 °C). About 95% of the time, the high temperature has been between 64.7 °F (18.2 °C) and 85.5 °F (29.7 °C).
Low Temperatures
On September 9 in WILMETTE (CGS) the average low temperature is 62.2 °F (16.8 °C). The lowest recored low temperature was 58.8 °F (14.9 °C) in 1987 and the lowest recored low temperature was 65.8 °F (18.8 °C) in 1990. The low temperature is usually* between 59.2 °F (15.1 °C) and 65.2 °F (18.4 °C). About a quarter of the time, the low temperature is less than 59.2 °F (15.1 °C), and another quarter of the time, the low temperature is greater than and 65.2 °F (18.4 °C). About 95% of the time, the low temperature has been between 53.6 °F (12.0 °C) and 70.8 °F (21.6 °C).
Frost
On September 9 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