- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On April 12 in WILMETTE (CGS) the average high temperature is 46.9 °F (8.3 °C). The lowest recored high temperature was 40.8 °F (4.9 °C) in 1990 and the highest recored high temperature was 45.9 °F (7.7 °C) in 1989. The high temperature is usually* between 40.7 °F (4.8 °C) and 53.1 °F (11.7 °C). About a quarter of the time, the high temperature is less than 40.7 °F (4.8 °C), and another quarter of the time, the high temperature is greater than and 53.1 °F (11.7 °C). About 95% of the time, the high temperature has been between 28.9 °F (-1.7 °C) and 64.9 °F (18.3 °C).
Low Temperatures
On April 12 in WILMETTE (CGS) the average low temperature is 34.0 °F (1.1 °C). The lowest recored low temperature was 27.1 °F (-2.7 °C) in 1990 and the lowest recored low temperature was 39.9 °F (4.4 °C) in 1989. The low temperature is usually* between 30.3 °F (-0.9 °C) and 37.6 °F (3.1 °C). About a quarter of the time, the low temperature is less than 30.3 °F (-0.9 °C), and another quarter of the time, the low temperature is greater than and 37.6 °F (3.1 °C). About 95% of the time, the low temperature has been between 23.3 °F (-4.8 °C) and 44.6 °F (7.0 °C).
Frost
On April 12 in WILMETTE (CGS) expect the temperatures to drop below freezing for a risk of frost about 35.9% 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 1988 to 1990