Station information
- Integrated Surface Dataset (ISD) station ID: 998499
- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On February 22 in NORTHERLY ISLAND the average high temperature is 42.4 °F (5.8 °C). The lowest recored high temperature was 30.0 °F (-1.1 °C) in 2015 and the highest recored high temperature was 65.7 °F (18.7 °C) in 2017. The high temperature is usually* between 34.9 °F (1.6 °C) and 49.9 °F (9.9 °C). About a quarter of the time, the high temperature is less than 34.9 °F (1.6 °C), and another quarter of the time, the high temperature is greater than and 49.9 °F (9.9 °C). About 95% of the time, the high temperature has been between 20.7 °F (-6.3 °C) and 64.1 °F (17.9 °C).
Low Temperatures
On February 22 in NORTHERLY ISLAND the average low temperature is 25.4 °F (-3.6 °C). The lowest recored low temperature was 14.0 °F (-10.0 °C) in 2025 and the lowest recored low temperature was 43.0 °F (6.1 °C) in 2017. The low temperature is usually* between 19.2 °F (-7.1 °C) and 31.7 °F (-0.2 °C). About a quarter of the time, the low temperature is less than 19.2 °F (-7.1 °C), and another quarter of the time, the low temperature is greater than and 31.7 °F (-0.2 °C). About 95% of the time, the low temperature has been between 7.2 °F (-13.8 °C) and 43.7 °F (6.5 °C).
Frost
On February 22 in NORTHERLY ISLAND expect the temperatures to drop below freezing for a risk of frost about 75.9% 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