- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On November 20 in WILMETTE (CGS) the average high temperature is 45.5 °F (7.5 °C). The lowest recored high temperature was 40.8 °F (4.9 °C) in 1987 and the highest recored high temperature was 55.9 °F (13.3 °C) in 1989. The high temperature is usually* between 39.4 °F (4.1 °C) and 51.5 °F (10.8 °C). About a quarter of the time, the high temperature is less than 39.4 °F (4.1 °C), and another quarter of the time, the high temperature is greater than and 51.5 °F (10.8 °C). About 95% of the time, the high temperature has been between 27.9 °F (-2.3 °C) and 63.0 °F (17.2 °C).
Low Temperatures
On November 20 in WILMETTE (CGS) the average low temperature is 34.5 °F (1.4 °C). The lowest recored low temperature was 24.1 °F (-4.4 °C) in 1987 and the lowest recored low temperature was 43.9 °F (6.6 °C) in 1989. The low temperature is usually* between 28.1 °F (-2.2 °C) and 40.8 °F (4.9 °C). About a quarter of the time, the low temperature is less than 28.1 °F (-2.2 °C), and another quarter of the time, the low temperature is greater than and 40.8 °F (4.9 °C). About 95% of the time, the low temperature has been between 16.0 °F (-8.9 °C) and 53.0 °F (11.7 °C).
Frost
On November 20 in WILMETTE (CGS) expect the temperatures to drop below freezing for a risk of frost about 39.7% 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