- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On December 22 in WILMETTE (CGS) the average high temperature is 31.2 °F (-0.4 °C). The lowest recored high temperature was 3.0 °F (-16.1 °C) in 1989 and the highest recored high temperature was 43.9 °F (6.6 °C) in 1990. The high temperature is usually* between 20.7 °F (-6.3 °C) and 41.7 °F (5.4 °C). About a quarter of the time, the high temperature is less than 20.7 °F (-6.3 °C), and another quarter of the time, the high temperature is greater than and 41.7 °F (5.4 °C). About 95% of the time, the high temperature has been between 0.7 °F (-17.4 °C) and 61.7 °F (16.5 °C).
Low Temperatures
On December 22 in WILMETTE (CGS) the average low temperature is 20.1 °F (-6.6 °C). The lowest recored low temperature was -11.9 °F (-24.4 °C) in 1989 and the lowest recored low temperature was 34.9 °F (1.6 °C) in 1987. The low temperature is usually* between 7.8 °F (-13.4 °C) and 32.4 °F (0.2 °C). About a quarter of the time, the low temperature is less than 7.8 °F (-13.4 °C), and another quarter of the time, the low temperature is greater than and 32.4 °F (0.2 °C). About 95% of the time, the low temperature has been between -15.5 °F (-26.4 °C) and 55.7 °F (13.2 °C).
Frost
On December 22 in WILMETTE (CGS) expect the temperatures to drop below freezing for a risk of frost about 74.4% 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