Station information
- Integrated Surface Dataset (ISD) station ID: 722417
- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On November 21 in WILMETTE (CGS) the average high temperature is 44.4 °F (6.9 °C). The lowest recored high temperature was 29.1 °F (-1.6 °C) in 1987 and the highest recored high temperature was 63.0 °F (17.2 °C) in 1990. The high temperature is usually* between 36.7 °F (2.6 °C) and 52.2 °F (11.2 °C). About a quarter of the time, the high temperature is less than 36.7 °F (2.6 °C), and another quarter of the time, the high temperature is greater than and 52.2 °F (11.2 °C). About 95% of the time, the high temperature has been between 21.9 °F (-5.6 °C) and 66.9 °F (19.4 °C).
Low Temperatures
On November 21 in WILMETTE (CGS) the average low temperature is 32.8 °F (0.5 °C). The lowest recored low temperature was 19.0 °F (-7.2 °C) in 1987 and the lowest recored low temperature was 49.8 °F (9.9 °C) in 1990. The low temperature is usually* between 26.9 °F (-2.9 °C) and 38.8 °F (3.8 °C). About a quarter of the time, the low temperature is less than 26.9 °F (-2.9 °C), and another quarter of the time, the low temperature is greater than and 38.8 °F (3.8 °C). About 95% of the time, the low temperature has been between 15.5 °F (-9.2 °C) and 50.1 °F (10.1 °C).
Frost
On November 21 in WILMETTE (CGS) expect the temperatures to drop below freezing for a risk of frost about 46.3% 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