Station information
- Integrated Surface Dataset (ISD) station ID: 998499
- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On February 6 in NORTHERLY ISLAND the average high temperature is 35.1 °F (1.7 °C). The lowest recored high temperature was 20.1 °F (-6.6 °C) in 2014 and the highest recored high temperature was 53.1 °F (11.7 °C) in 2017. The high temperature is usually* between 28.1 °F (-2.2 °C) and 42.0 °F (5.6 °C). About a quarter of the time, the high temperature is less than 28.1 °F (-2.2 °C), and another quarter of the time, the high temperature is greater than and 42.0 °F (5.6 °C). About 95% of the time, the high temperature has been between 14.8 °F (-9.6 °C) and 55.3 °F (12.9 °C).
Low Temperatures
On February 6 in NORTHERLY ISLAND the average low temperature is 19.2 °F (-7.1 °C). The lowest recored low temperature was 2.7 °F (-16.3 °C) in 2014 and the lowest recored low temperature was 31.6 °F (-0.2 °C) in 2024. The low temperature is usually* between 12.0 °F (-11.1 °C) and 26.4 °F (-3.1 °C). About a quarter of the time, the low temperature is less than 12.0 °F (-11.1 °C), and another quarter of the time, the low temperature is greater than and 26.4 °F (-3.1 °C). About 95% of the time, the low temperature has been between -1.7 °F (-18.7 °C) and 40.1 °F (4.5 °C).
Frost
On February 6 in NORTHERLY ISLAND expect the temperatures to drop below freezing for a risk of frost about 88.5% 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 2014 to 2025