Station information
- Integrated Surface Dataset (ISD) station ID: 722417
- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On December 12 in WILMETTE (CGS) the average high temperature is 35.7 °F (2.1 °C). The lowest recored high temperature was 20.1 °F (-6.6 °C) in 1989 and the highest recored high temperature was 54.9 °F (12.7 °C) in 1990. The high temperature is usually* between 27.2 °F (-2.7 °C) and 44.3 °F (6.8 °C). About a quarter of the time, the high temperature is less than 27.2 °F (-2.7 °C), and another quarter of the time, the high temperature is greater than and 44.3 °F (6.8 °C). About 95% of the time, the high temperature has been between 10.9 °F (-11.7 °C) and 60.5 °F (15.9 °C).
Low Temperatures
On December 12 in WILMETTE (CGS) the average low temperature is 24.2 °F (-4.3 °C). The lowest recored low temperature was 1.0 °F (-17.2 °C) in 1989 and the lowest recored low temperature was 43.9 °F (6.6 °C) in 1990. The low temperature is usually* between 14.9 °F (-9.5 °C) and 33.5 °F (0.8 °C). About a quarter of the time, the low temperature is less than 14.9 °F (-9.5 °C), and another quarter of the time, the low temperature is greater than and 33.5 °F (0.8 °C). About 95% of the time, the low temperature has been between -2.7 °F (-19.3 °C) and 51.1 °F (10.6 °C).
Frost
On December 12 in WILMETTE (CGS) expect the temperatures to drop below freezing for a risk of frost about 71.5% 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 1987 to 1990