Station information
- Integrated Surface Dataset (ISD) station ID: 722417
- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On May 18 in WILMETTE (CGS) the average high temperature is 62.4 °F (16.9 °C). The lowest recored high temperature was 50.9 °F (10.5 °C) in 1988 and the highest recored high temperature was 70.0 °F (21.1 °C) in 1990. The high temperature is usually* between 57.0 °F (13.9 °C) and 67.9 °F (19.9 °C). About a quarter of the time, the high temperature is less than 57.0 °F (13.9 °C), and another quarter of the time, the high temperature is greater than and 67.9 °F (19.9 °C). About 95% of the time, the high temperature has been between 46.6 °F (8.1 °C) and 78.2 °F (25.7 °C).
Low Temperatures
On May 18 in WILMETTE (CGS) the average low temperature is 50.1 °F (10.1 °C). The lowest recored low temperature was 45.0 °F (7.2 °C) in 1988 and the lowest recored low temperature was 54.9 °F (12.7 °C) in 1989. The low temperature is usually* between 46.9 °F (8.3 °C) and 53.4 °F (11.9 °C). About a quarter of the time, the low temperature is less than 46.9 °F (8.3 °C), and another quarter of the time, the low temperature is greater than and 53.4 °F (11.9 °C). About 95% of the time, the low temperature has been between 40.7 °F (4.8 °C) and 59.6 °F (15.3 °C).
Frost
On May 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 1988 to 1990