- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On September 30 in WILMETTE (MARINES)& the average high temperature is 73.0 °F (22.8 °C). The lowest recored high temperature was 71.1 °F (21.7 °C) in 1976 and the highest recored high temperature was 82.9 °F (28.3 °C) in 1995. The high temperature is usually* between 67.6 °F (19.8 °C) and 78.5 °F (25.8 °C). About a quarter of the time, the high temperature is less than 67.6 °F (19.8 °C), and another quarter of the time, the high temperature is greater than and 78.5 °F (25.8 °C). About 95% of the time, the high temperature has been between 57.2 °F (14.0 °C) and 88.9 °F (31.6 °C).
Low Temperatures
On September 30 in WILMETTE (MARINES)& the average low temperature is 50.5 °F (10.3 °C). The lowest recored low temperature was 44.1 °F (6.7 °C) in 1976 and the lowest recored low temperature was 59.0 °F (15.0 °C) in 1995. The low temperature is usually* between 44.3 °F (6.8 °C) and 56.7 °F (13.7 °C). About a quarter of the time, the low temperature is less than 44.3 °F (6.8 °C), and another quarter of the time, the low temperature is greater than and 56.7 °F (13.7 °C). About 95% of the time, the low temperature has been between 32.6 °F (0.3 °C) and 68.4 °F (20.2 °C).
Frost
On September 30 in WILMETTE (MARINES)& expect the temperatures to drop below freezing for a risk of frost about 2.2% 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 (MARINES)& — Integrated Surface Dataset (ISD) station ID: 725307 — from year 1976 to 1995