- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On January 25 in NORTHERLY ISLAND the average high temperature is 35.5 °F (1.9 °C). The lowest recored high temperature was 24.1 °F (-4.4 °C) in 2019 and the highest recored high temperature was 43.7 °F (6.5 °C) in 2018. The high temperature is usually* between 30.3 °F (-1.0 °C) and 40.7 °F (4.8 °C). About a quarter of the time, the high temperature is less than 30.3 °F (-1.0 °C), and another quarter of the time, the high temperature is greater than and 40.7 °F (4.8 °C). About 95% of the time, the high temperature has been between 20.4 °F (-6.5 °C) and 50.6 °F (10.3 °C).
Low Temperatures
On January 25 in NORTHERLY ISLAND the average low temperature is 21.6 °F (-5.8 °C). The lowest recored low temperature was -2.7 °F (-19.3 °C) in 2019 and the lowest recored low temperature was 34.0 °F (1.1 °C) in 2017. The low temperature is usually* between 14.1 °F (-9.9 °C) and 29.0 °F (-1.7 °C). About a quarter of the time, the low temperature is less than 14.1 °F (-9.9 °C), and another quarter of the time, the low temperature is greater than and 29.0 °F (-1.7 °C). About 95% of the time, the low temperature has been between -0.1 °F (-17.8 °C) and 43.2 °F (6.2 °C).
Frost
On January 25 in NORTHERLY ISLAND expect the temperatures to drop below freezing for a risk of frost about 82.8% 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:
- NORTHERLY ISLAND — Integrated Surface Dataset (ISD) station ID: 998499 — from year 2013 to 2025