Station information
- Integrated Surface Dataset (ISD) station ID: 722417
- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On December 16 in WILMETTE (CGS) the average high temperature is 27.4 °F (-2.6 °C). The lowest recored high temperature was 11.1 °F (-11.6 °C) in 1989 and the highest recored high temperature was 36.0 °F (2.2 °C) in 1990. The high temperature is usually* between 20.0 °F (-6.7 °C) and 34.7 °F (1.5 °C). About a quarter of the time, the high temperature is less than 20.0 °F (-6.7 °C), and another quarter of the time, the high temperature is greater than and 34.7 °F (1.5 °C). About 95% of the time, the high temperature has been between 6.0 °F (-14.4 °C) and 48.7 °F (9.3 °C).
Low Temperatures
On December 16 in WILMETTE (CGS) the average low temperature is 17.8 °F (-7.9 °C). The lowest recored low temperature was 1.0 °F (-17.2 °C) in 1989 and the lowest recored low temperature was 29.1 °F (-1.6 °C) in 1990. The low temperature is usually* between 9.4 °F (-12.6 °C) and 26.2 °F (-3.2 °C). About a quarter of the time, the low temperature is less than 9.4 °F (-12.6 °C), and another quarter of the time, the low temperature is greater than and 26.2 °F (-3.2 °C). About 95% of the time, the low temperature has been between -6.6 °F (-21.4 °C) and 42.2 °F (5.7 °C).
Frost
On December 16 in WILMETTE (CGS) expect the temperatures to drop below freezing for a risk of frost about 87.3% 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