September 8 - NORTHERLY ISLAND - Weather History and Averages

Station: NORTHERLY ISLAND (2012 to 2025)
Country: US
State: IL
Latitude: 41.856
Longitude: -87.609

High Temperatures

On September 8 in NORTHERLY ISLAND the average high temperature is 78.9 °F (26.1 °C). The lowest recored high temperature was 72.0 °F (22.2 °C) in 2024 and the highest recored high temperature was 91.9 °F (33.3 °C) in 2016. The high temperature is usually^* between 73.8 °F (23.2 °C) and 84.0 °F (28.9 °C). About a quarter of the time, the high temperature is less than 73.8 °F (23.2 °C), and another quarter of the time, the high temperature is greater than and 84.0 °F (28.9 °C). About 95% of the time, the high temperature has been between 64.2 °F (17.9 °C) and 93.6 °F (34.2 °C).

Low Temperatures

On September 8 in NORTHERLY ISLAND the average low temperature is 64.0 °F (17.8 °C). The lowest recored low temperature was 51.1 °F (10.6 °C) in 2024 and the lowest recored low temperature was 72.0 °F (22.2 °C) in 2015. The low temperature is usually^* between 59.9 °F (15.5 °C) and 68.1 °F (20.1 °C). About a quarter of the time, the low temperature is less than 59.9 °F (15.5 °C), and another quarter of the time, the low temperature is greater than and 68.1 °F (20.1 °C). About 95% of the time, the low temperature has been between 52.0 °F (11.1 °C) and 76.0 °F (24.5 °C).

Frost

On September 8 in NORTHERLY ISLAND expect the temperatures to drop below freezing for a risk of frost about 0.0% 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:

NORTHERLY ISLAND — Integrated Surface Dataset (ISD) station ID: 998499 — from year 2012 to 2024

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