Station information
- Integrated Surface Dataset (ISD) station ID: 998499
- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On April 6 in NORTHERLY ISLAND the average high temperature is 51.9 °F (11.1 °C). The lowest recored high temperature was 41.0 °F (5.0 °C) in 2018 and the highest recored high temperature was 68.7 °F (20.4 °C) in 2013. The high temperature is usually* between 45.1 °F (7.3 °C) and 58.7 °F (14.8 °C). About a quarter of the time, the high temperature is less than 45.1 °F (7.3 °C), and another quarter of the time, the high temperature is greater than and 58.7 °F (14.8 °C). About 95% of the time, the high temperature has been between 32.2 °F (0.1 °C) and 71.6 °F (22.0 °C).
Low Temperatures
On April 6 in NORTHERLY ISLAND the average low temperature is 36.1 °F (2.3 °C). The lowest recored low temperature was 27.0 °F (-2.8 °C) in 2018 and the lowest recored low temperature was 41.2 °F (5.1 °C) in 2022. The low temperature is usually* between 33.1 °F (0.6 °C) and 39.1 °F (3.9 °C). About a quarter of the time, the low temperature is less than 33.1 °F (0.6 °C), and another quarter of the time, the low temperature is greater than and 39.1 °F (3.9 °C). About 95% of the time, the low temperature has been between 27.5 °F (-2.5 °C) and 44.7 °F (7.1 °C).
Frost
On April 6 in NORTHERLY ISLAND expect the temperatures to drop below freezing for a risk of frost about 17.5% 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 2013 to 2025