October 12 - WILMETTE (CGS) - Weather History and Averages

Station: WILMETTE (CGS) (1987 to 1991)
Country: US
State: IL
Latitude: 42.067
Longitude: -87.683

High Temperatures

On October 12 in WILMETTE (CGS) the average high temperature is 57.6 °F (14.2 °C). The lowest recored high temperature was 45.0 °F (7.2 °C) in 1988 and the highest recored high temperature was 72.9 °F (22.7 °C) in 1989. The high temperature is usually^* between 51.3 °F (10.7 °C) and 64.0 °F (17.8 °C). About a quarter of the time, the high temperature is less than 51.3 °F (10.7 °C), and another quarter of the time, the high temperature is greater than and 64.0 °F (17.8 °C). About 95% of the time, the high temperature has been between 39.3 °F (4.1 °C) and 76.0 °F (24.4 °C).

Low Temperatures

On October 12 in WILMETTE (CGS) the average low temperature is 38.5 °F (3.6 °C). The lowest recored low temperature was 32.9 °F (0.5 °C) in 1987 and the lowest recored low temperature was 55.9 °F (13.3 °C) in 1989. The low temperature is usually^* between 32.6 °F (0.3 °C) and 44.4 °F (6.9 °C). About a quarter of the time, the low temperature is less than 32.6 °F (0.3 °C), and another quarter of the time, the low temperature is greater than and 44.4 °F (6.9 °C). About 95% of the time, the low temperature has been between 21.3 °F (-5.9 °C) and 55.7 °F (13.2 °C).

Frost

On October 12 in WILMETTE (CGS) expect the temperatures to drop below freezing for a risk of frost about 22.9% of the time.

^{Usually* in this context means around 50% of the
time, assuming a normal distribution of values.}

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 1987 to 1990

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