- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On May 1 in WILMETTE (CGS) the average high temperature is 52.8 °F (11.5 °C). The lowest recored high temperature was 45.9 °F (7.7 °C) in 1989 and the highest recored high temperature was 57.9 °F (14.4 °C) in 1990. The high temperature is usually* between 48.9 °F (9.4 °C) and 56.7 °F (13.7 °C). About a quarter of the time, the high temperature is less than 48.9 °F (9.4 °C), and another quarter of the time, the high temperature is greater than and 56.7 °F (13.7 °C). About 95% of the time, the high temperature has been between 41.5 °F (5.3 °C) and 64.1 °F (17.8 °C).
Low Temperatures
On May 1 in WILMETTE (CGS) the average low temperature is 43.2 °F (6.2 °C). The lowest recored low temperature was 41.9 °F (5.5 °C) in 1989 and the lowest recored low temperature was 45.9 °F (7.7 °C) in 1990. The low temperature is usually* between 41.1 °F (5.1 °C) and 45.3 °F (7.4 °C). About a quarter of the time, the low temperature is less than 41.1 °F (5.1 °C), and another quarter of the time, the low temperature is greater than and 45.3 °F (7.4 °C). About 95% of the time, the low temperature has been between 37.1 °F (2.8 °C) and 49.3 °F (9.6 °C).
Frost
On May 1 in WILMETTE (CGS) expect the temperatures to drop below freezing for a risk of frost about 0.0% 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 (CGS) — Integrated Surface Dataset (ISD) station ID: 722417 — from year 1988 to 1990