Station information
- Integrated Surface Dataset (ISD) station ID: 722417
- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On June 30 in WILMETTE (CGS) the average high temperature is 74.0 °F (23.3 °C). The lowest recored high temperature was 68.9 °F (20.5 °C) in 1989 and the highest recored high temperature was 79.0 °F (26.1 °C) in 1990. The high temperature is usually* between 69.9 °F (21.1 °C) and 78.0 °F (25.6 °C). About a quarter of the time, the high temperature is less than 69.9 °F (21.1 °C), and another quarter of the time, the high temperature is greater than and 78.0 °F (25.6 °C). About 95% of the time, the high temperature has been between 62.2 °F (16.8 °C) and 85.7 °F (29.8 °C).
Low Temperatures
On June 30 in WILMETTE (CGS) the average low temperature is 64.3 °F (18.0 °C). The lowest recored low temperature was 57.9 °F (14.4 °C) in 1989 and the lowest recored low temperature was 68.9 °F (20.5 °C) in 1990. The low temperature is usually* between 61.4 °F (16.4 °C) and 67.2 °F (19.5 °C). About a quarter of the time, the low temperature is less than 61.4 °F (16.4 °C), and another quarter of the time, the low temperature is greater than and 67.2 °F (19.5 °C). About 95% of the time, the low temperature has been between 56.0 °F (13.3 °C) and 72.7 °F (22.6 °C).
Frost
On June 30 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