- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On April 20 in WILMETTE (MARINES)& the average high temperature is 68.4 °F (20.2 °C). The lowest recored high temperature was 62.1 °F (16.7 °C) in 1976 and the highest recored high temperature was 77.0 °F (25.0 °C) in 1977. The high temperature is usually* between 62.3 °F (16.8 °C) and 74.6 °F (23.7 °C). About a quarter of the time, the high temperature is less than 62.3 °F (16.8 °C), and another quarter of the time, the high temperature is greater than and 74.6 °F (23.7 °C). About 95% of the time, the high temperature has been between 50.6 °F (10.3 °C) and 86.3 °F (30.2 °C).
Low Temperatures
On April 20 in WILMETTE (MARINES)& the average low temperature is 49.3 °F (9.6 °C). The lowest recored low temperature was 39.9 °F (4.4 °C) in 1994 and the lowest recored low temperature was 59.0 °F (15.0 °C) in 1977. The low temperature is usually* between 43.6 °F (6.4 °C) and 55.1 °F (12.8 °C). About a quarter of the time, the low temperature is less than 43.6 °F (6.4 °C), and another quarter of the time, the low temperature is greater than and 55.1 °F (12.8 °C). About 95% of the time, the low temperature has been between 32.6 °F (0.3 °C) and 66.0 °F (18.9 °C).
Frost
On April 20 in WILMETTE (MARINES)& expect the temperatures to drop below freezing for a risk of frost about 2.1% 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 1994