Station information
- Integrated Surface Dataset (ISD) station ID: 722417
- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On December 1 in WILMETTE (CGS) the average high temperature is 40.4 °F (4.7 °C). The lowest recored high temperature was 29.1 °F (-1.6 °C) in 1988 and the highest recored high temperature was 46.9 °F (8.3 °C) in 1990. The high temperature is usually* between 36.3 °F (2.4 °C) and 44.5 °F (6.9 °C). About a quarter of the time, the high temperature is less than 36.3 °F (2.4 °C), and another quarter of the time, the high temperature is greater than and 44.5 °F (6.9 °C). About 95% of the time, the high temperature has been between 28.5 °F (-1.9 °C) and 52.3 °F (11.3 °C).
Low Temperatures
On December 1 in WILMETTE (CGS) the average low temperature is 28.5 °F (-1.9 °C). The lowest recored low temperature was 23.2 °F (-4.9 °C) in 1988 and the lowest recored low temperature was 41.9 °F (5.5 °C) in 1990. The low temperature is usually* between 23.9 °F (-4.5 °C) and 33.1 °F (0.6 °C). About a quarter of the time, the low temperature is less than 23.9 °F (-4.5 °C), and another quarter of the time, the low temperature is greater than and 33.1 °F (0.6 °C). About 95% of the time, the low temperature has been between 15.1 °F (-9.4 °C) and 41.9 °F (5.5 °C).
Frost
On December 1 in WILMETTE (CGS) expect the temperatures to drop below freezing for a risk of frost about 69.5% 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