May 27 - 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 May 27 in NORTHERLY ISLAND the average high temperature is 72.6 °F (22.5 °C). The lowest recored high temperature was 55.9 °F (13.3 °C) in 2013 and the highest recored high temperature was 83.7 °F (28.7 °C) in 2014. The high temperature is usually^* between 66.6 °F (19.2 °C) and 78.6 °F (25.9 °C). About a quarter of the time, the high temperature is less than 66.6 °F (19.2 °C), and another quarter of the time, the high temperature is greater than and 78.6 °F (25.9 °C). About 95% of the time, the high temperature has been between 55.1 °F (12.8 °C) and 90.0 °F (32.2 °C).

Low Temperatures

On May 27 in NORTHERLY ISLAND the average low temperature is 55.8 °F (13.2 °C). The lowest recored low temperature was 50.0 °F (10.0 °C) in 2022 and the lowest recored low temperature was 66.0 °F (18.9 °C) in 2014. The low temperature is usually^* between 52.3 °F (11.3 °C) and 59.4 °F (15.2 °C). About a quarter of the time, the low temperature is less than 52.3 °F (11.3 °C), and another quarter of the time, the low temperature is greater than and 59.4 °F (15.2 °C). About 95% of the time, the low temperature has been between 45.4 °F (7.5 °C) and 66.2 °F (19.0 °C).

Frost

On May 27 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 2013 to 2025

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