Station information
- Integrated Surface Dataset (ISD) station ID: 722417
- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On June 20 in WILMETTE (CGS) the average high temperature is 83.2 °F (28.5 °C). The lowest recored high temperature was 73.9 °F (23.3 °C) in 1987 and the highest recored high temperature was 97.9 °F (36.6 °C) in 1988. The high temperature is usually* between 75.5 °F (24.2 °C) and 90.9 °F (32.7 °C). About a quarter of the time, the high temperature is less than 75.5 °F (24.2 °C), and another quarter of the time, the high temperature is greater than and 90.9 °F (32.7 °C). About 95% of the time, the high temperature has been between 60.8 °F (16.0 °C) and 105.6 °F (40.9 °C).
Low Temperatures
On June 20 in WILMETTE (CGS) the average low temperature is 69.8 °F (21.0 °C). The lowest recored low temperature was 67.8 °F (19.9 °C) in 1987 and the lowest recored low temperature was 81.9 °F (27.7 °C) in 1988. The low temperature is usually* between 63.6 °F (17.6 °C) and 76.0 °F (24.5 °C). About a quarter of the time, the low temperature is less than 63.6 °F (17.6 °C), and another quarter of the time, the low temperature is greater than and 76.0 °F (24.5 °C). About 95% of the time, the low temperature has been between 51.8 °F (11.0 °C) and 87.8 °F (31.0 °C).
Frost
On June 20 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 1989