Station information
- Integrated Surface Dataset (ISD) station ID: 725307
- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On September 21 in WILMETTE (MARINES)& the average high temperature is 65.6 °F (18.7 °C). The lowest recored high temperature was 52.0 °F (11.1 °C) in 1995 and the highest recored high temperature was 70.0 °F (21.1 °C) in 1977. The high temperature is usually* between 60.7 °F (15.9 °C) and 70.5 °F (21.4 °C). About a quarter of the time, the high temperature is less than 60.7 °F (15.9 °C), and another quarter of the time, the high temperature is greater than and 70.5 °F (21.4 °C). About 95% of the time, the high temperature has been between 51.3 °F (10.7 °C) and 79.9 °F (26.6 °C).
Low Temperatures
On September 21 in WILMETTE (MARINES)& the average low temperature is 48.6 °F (9.2 °C). The lowest recored low temperature was 42.1 °F (5.6 °C) in 1976 and the lowest recored low temperature was 46.0 °F (7.8 °C) in 1977. The low temperature is usually* between 43.1 °F (6.2 °C) and 54.1 °F (12.3 °C). About a quarter of the time, the low temperature is less than 43.1 °F (6.2 °C), and another quarter of the time, the low temperature is greater than and 54.1 °F (12.3 °C). About 95% of the time, the low temperature has been between 32.7 °F (0.4 °C) and 64.5 °F (18.0 °C).
Frost
On September 21 in WILMETTE (MARINES)& expect the temperatures to drop below freezing for a risk of frost about 2.0% 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 (MARINES)& — Integrated Surface Dataset (ISD) station ID: 725307 — from year 1976 to 1995