February 17 - WAUKEGAN HARBOR - Weather History and Averages

Station: WAUKEGAN HARBOR (2006 to 2025)
Country: US
State: IL
Latitude: 42.35
Longitude: -87.82

High Temperatures

On February 17 in WAUKEGAN HARBOR the average high temperature is 34.4 °F (1.4 °C). The lowest recored high temperature was 16.7 °F (-8.5 °C) in 2015 and the highest recored high temperature was 64.0 °F (17.8 °C) in 2017. The high temperature is usually^* between 26.0 °F (-3.3 °C) and 42.9 °F (6.0 °C). About a quarter of the time, the high temperature is less than 26.0 °F (-3.3 °C), and another quarter of the time, the high temperature is greater than and 42.9 °F (6.0 °C). About 95% of the time, the high temperature has been between 10.0 °F (-12.2 °C) and 58.9 °F (15.0 °C).

Low Temperatures

On February 17 in WAUKEGAN HARBOR the average low temperature is 20.6 °F (-6.4 °C). The lowest recored low temperature was 0.0 °F (-17.8 °C) in 2025 and the lowest recored low temperature was 35.2 °F (1.8 °C) in 2011. The low temperature is usually^* between 13.3 °F (-10.4 °C) and 27.9 °F (-2.3 °C). About a quarter of the time, the low temperature is less than 13.3 °F (-10.4 °C), and another quarter of the time, the low temperature is greater than and 27.9 °F (-2.3 °C). About 95% of the time, the low temperature has been between -0.7 °F (-18.1 °C) and 41.8 °F (5.4 °C).

Frost

On February 17 in WAUKEGAN HARBOR expect the temperatures to drop below freezing for a risk of frost about 85.5% 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:

WAUKEGAN HARBOR — Integrated Surface Dataset (ISD) station ID: 997735 — from year 2007 to 2025

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