- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On February 20 in WILMETTE (CGS) the average high temperature is 34.5 °F (1.4 °C). The lowest recored high temperature was 29.1 °F (-1.6 °C) in 1989 and the highest recored high temperature was 36.0 °F (2.2 °C) in 1988. The high temperature is usually* between 30.5 °F (-0.8 °C) and 38.6 °F (3.6 °C). About a quarter of the time, the high temperature is less than 30.5 °F (-0.8 °C), and another quarter of the time, the high temperature is greater than and 38.6 °F (3.6 °C). About 95% of the time, the high temperature has been between 22.8 °F (-5.1 °C) and 46.2 °F (7.9 °C).
Low Temperatures
On February 20 in WILMETTE (CGS) the average low temperature is 19.3 °F (-7.1 °C). The lowest recored low temperature was 13.1 °F (-10.5 °C) in 1990 and the lowest recored low temperature was 20.1 °F (-6.6 °C) in 1989. The low temperature is usually* between 14.2 °F (-9.9 °C) and 24.4 °F (-4.2 °C). About a quarter of the time, the low temperature is less than 14.2 °F (-9.9 °C), and another quarter of the time, the low temperature is greater than and 24.4 °F (-4.2 °C). About 95% of the time, the low temperature has been between 4.5 °F (-15.3 °C) and 34.0 °F (1.1 °C).
Frost
On February 20 in WILMETTE (CGS) expect the temperatures to drop below freezing for a risk of frost about 95.4% 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 1988 to 1990