Station information
- Integrated Surface Dataset (ISD) station ID: 722417
- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On June 18 in WILMETTE (CGS) the average high temperature is 77.1 °F (25.1 °C). The lowest recored high temperature was 67.8 °F (19.9 °C) in 1989 and the highest recored high temperature was 83.8 °F (28.8 °C) in 1990. The high temperature is usually* between 71.9 °F (22.1 °C) and 82.4 °F (28.0 °C). About a quarter of the time, the high temperature is less than 71.9 °F (22.1 °C), and another quarter of the time, the high temperature is greater than and 82.4 °F (28.0 °C). About 95% of the time, the high temperature has been between 61.8 °F (16.5 °C) and 92.5 °F (33.6 °C).
Low Temperatures
On June 18 in WILMETTE (CGS) the average low temperature is 64.7 °F (18.2 °C). The lowest recored low temperature was 57.9 °F (14.4 °C) in 1988 and the lowest recored low temperature was 72.9 °F (22.7 °C) in 1987. The low temperature is usually* between 59.1 °F (15.1 °C) and 70.2 °F (21.2 °C). About a quarter of the time, the low temperature is less than 59.1 °F (15.1 °C), and another quarter of the time, the low temperature is greater than and 70.2 °F (21.2 °C). About 95% of the time, the low temperature has been between 48.6 °F (9.2 °C) and 80.8 °F (27.1 °C).
Frost
On June 18 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