Station information
- Integrated Surface Dataset (ISD) station ID: 722417
- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On January 21 in WILMETTE (CGS) the average high temperature is 33.8 °F (1.0 °C). The lowest recored high temperature was 25.2 °F (-3.8 °C) in 1991 and the highest recored high temperature was 34.9 °F (1.6 °C) in 1989. The high temperature is usually* between 28.3 °F (-2.1 °C) and 39.3 °F (4.1 °C). About a quarter of the time, the high temperature is less than 28.3 °F (-2.1 °C), and another quarter of the time, the high temperature is greater than and 39.3 °F (4.1 °C). About 95% of the time, the high temperature has been between 17.8 °F (-7.9 °C) and 49.8 °F (9.9 °C).
Low Temperatures
On January 21 in WILMETTE (CGS) the average low temperature is 24.6 °F (-4.1 °C). The lowest recored low temperature was 11.1 °F (-11.6 °C) in 1991 and the lowest recored low temperature was 26.1 °F (-3.3 °C) in 1988. The low temperature is usually* between 18.3 °F (-7.6 °C) and 31.0 °F (-0.5 °C). About a quarter of the time, the low temperature is less than 18.3 °F (-7.6 °C), and another quarter of the time, the low temperature is greater than and 31.0 °F (-0.5 °C). About 95% of the time, the low temperature has been between 6.1 °F (-14.4 °C) and 43.2 °F (6.2 °C).
Frost
On January 21 in WILMETTE (CGS) expect the temperatures to drop below freezing for a risk of frost about 78.2% 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 (CGS) — Integrated Surface Dataset (ISD) station ID: 722417 — from year 1988 to 1991