- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On October 31 in WILMETTE (CGS) the average high temperature is 59.5 °F (15.3 °C). The lowest recored high temperature was 49.8 °F (9.9 °C) in 1987 and the highest recored high temperature was 63.9 °F (17.7 °C) in 1989. The high temperature is usually* between 52.7 °F (11.5 °C) and 66.2 °F (19.0 °C). About a quarter of the time, the high temperature is less than 52.7 °F (11.5 °C), and another quarter of the time, the high temperature is greater than and 66.2 °F (19.0 °C). About 95% of the time, the high temperature has been between 39.9 °F (4.4 °C) and 79.1 °F (26.2 °C).
Low Temperatures
On October 31 in WILMETTE (CGS) the average low temperature is 43.1 °F (6.1 °C). The lowest recored low temperature was 32.0 °F (0.0 °C) in 1988 and the lowest recored low temperature was 45.9 °F (7.7 °C) in 1987. The low temperature is usually* between 38.0 °F (3.3 °C) and 48.2 °F (9.0 °C). About a quarter of the time, the low temperature is less than 38.0 °F (3.3 °C), and another quarter of the time, the low temperature is greater than and 48.2 °F (9.0 °C). About 95% of the time, the low temperature has been between 28.3 °F (-2.1 °C) and 57.9 °F (14.4 °C).
Frost
On October 31 in WILMETTE (CGS) expect the temperatures to drop below freezing for a risk of frost about 7.2% 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