- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On August 22 in WILMETTE (CGS) the average high temperature is 77.9 °F (25.5 °C). The lowest recored high temperature was 70.9 °F (21.6 °C) in 1990 and the highest recored high temperature was 82.9 °F (28.3 °C) in 1989. The high temperature is usually* between 73.2 °F (22.9 °C) and 82.6 °F (28.1 °C). About a quarter of the time, the high temperature is less than 73.2 °F (22.9 °C), and another quarter of the time, the high temperature is greater than and 82.6 °F (28.1 °C). About 95% of the time, the high temperature has been between 64.2 °F (17.9 °C) and 91.6 °F (33.1 °C).
Low Temperatures
On August 22 in WILMETTE (CGS) the average low temperature is 66.5 °F (19.2 °C). The lowest recored low temperature was 67.8 °F (19.9 °C) in 1990 and the lowest recored low temperature was 72.0 °F (22.2 °C) in 1989. The low temperature is usually* between 63.7 °F (17.6 °C) and 69.3 °F (20.7 °C). About a quarter of the time, the low temperature is less than 63.7 °F (17.6 °C), and another quarter of the time, the low temperature is greater than and 69.3 °F (20.7 °C). About 95% of the time, the low temperature has been between 58.3 °F (14.6 °C) and 74.7 °F (23.7 °C).
Frost
On August 22 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 1988 to 1990