Station information
- Integrated Surface Dataset (ISD) station ID: 722417
- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On April 15 in WILMETTE (CGS) the average high temperature is 57.6 °F (14.2 °C). The lowest recored high temperature was 50.9 °F (10.5 °C) in 1990 and the highest recored high temperature was 54.9 °F (12.7 °C) in 1989. The high temperature is usually* between 51.4 °F (10.8 °C) and 63.9 °F (17.7 °C). About a quarter of the time, the high temperature is less than 51.4 °F (10.8 °C), and another quarter of the time, the high temperature is greater than and 63.9 °F (17.7 °C). About 95% of the time, the high temperature has been between 39.4 °F (4.1 °C) and 75.9 °F (24.4 °C).
Low Temperatures
On April 15 in WILMETTE (CGS) the average low temperature is 39.2 °F (4.0 °C). The lowest recored low temperature was 36.9 °F (2.7 °C) in 1989 and the lowest recored low temperature was 41.9 °F (5.5 °C) in 1990. The low temperature is usually* between 36.7 °F (2.6 °C) and 41.6 °F (5.3 °C). About a quarter of the time, the low temperature is less than 36.7 °F (2.6 °C), and another quarter of the time, the low temperature is greater than and 41.6 °F (5.3 °C). About 95% of the time, the low temperature has been between 32.0 °F (0.0 °C) and 46.3 °F (7.9 °C).
Frost
On April 15 in WILMETTE (CGS) expect the temperatures to drop below freezing for a risk of frost about 2.4% 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 1989 to 1990