- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On December 11 in NORTHERLY ISLAND the average high temperature is 40.1 °F (4.5 °C). The lowest recored high temperature was 21.2 °F (-6.0 °C) in 2013 and the highest recored high temperature was 59.5 °F (15.3 °C) in 2021. The high temperature is usually* between 32.8 °F (0.4 °C) and 47.3 °F (8.5 °C). About a quarter of the time, the high temperature is less than 32.8 °F (0.4 °C), and another quarter of the time, the high temperature is greater than and 47.3 °F (8.5 °C). About 95% of the time, the high temperature has been between 19.0 °F (-7.2 °C) and 61.1 °F (16.2 °C).
Low Temperatures
On December 11 in NORTHERLY ISLAND the average low temperature is 26.3 °F (-3.2 °C). The lowest recored low temperature was 13.6 °F (-10.2 °C) in 2013 and the lowest recored low temperature was 44.1 °F (6.7 °C) in 2015. The low temperature is usually* between 18.8 °F (-7.3 °C) and 33.8 °F (1.0 °C). About a quarter of the time, the low temperature is less than 18.8 °F (-7.3 °C), and another quarter of the time, the low temperature is greater than and 33.8 °F (1.0 °C). About 95% of the time, the low temperature has been between 4.6 °F (-15.2 °C) and 48.0 °F (8.9 °C).
Frost
On December 11 in NORTHERLY ISLAND expect the temperatures to drop below freezing for a risk of frost about 69.6% 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 2012 to 2024