- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On December 11 in WILMETTE (CGS) the average high temperature is 37.7 °F (3.2 °C). The lowest recored high temperature was 21.0 °F (-6.1 °C) in 1988 and the highest recored high temperature was 54.9 °F (12.7 °C) in 1990. The high temperature is usually* between 29.5 °F (-1.4 °C) and 45.9 °F (7.7 °C). About a quarter of the time, the high temperature is less than 29.5 °F (-1.4 °C), and another quarter of the time, the high temperature is greater than and 45.9 °F (7.7 °C). About 95% of the time, the high temperature has been between 13.9 °F (-10.1 °C) and 61.5 °F (16.4 °C).
Low Temperatures
On December 11 in WILMETTE (CGS) the average low temperature is 25.2 °F (-3.8 °C). The lowest recored low temperature was 8.1 °F (-13.3 °C) in 1988 and the lowest recored low temperature was 37.9 °F (3.3 °C) in 1990. The low temperature is usually* between 16.0 °F (-8.9 °C) and 34.3 °F (1.3 °C). About a quarter of the time, the low temperature is less than 16.0 °F (-8.9 °C), and another quarter of the time, the low temperature is greater than and 34.3 °F (1.3 °C). About 95% of the time, the low temperature has been between -1.4 °F (-18.5 °C) and 51.7 °F (11.0 °C).
Frost
On December 11 in WILMETTE (CGS) expect the temperatures to drop below freezing for a risk of frost about 69.3% 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