Station information
- Integrated Surface Dataset (ISD) station ID: 998499
- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On April 16 in NORTHERLY ISLAND the average high temperature is 57.6 °F (14.2 °C). The lowest recored high temperature was 37.0 °F (2.8 °C) in 2018 and the highest recored high temperature was 81.0 °F (27.2 °C) in 2023. The high temperature is usually* between 48.5 °F (9.2 °C) and 66.7 °F (19.3 °C). About a quarter of the time, the high temperature is less than 48.5 °F (9.2 °C), and another quarter of the time, the high temperature is greater than and 66.7 °F (19.3 °C). About 95% of the time, the high temperature has been between 31.2 °F (-0.5 °C) and 84.0 °F (28.9 °C).
Low Temperatures
On April 16 in NORTHERLY ISLAND the average low temperature is 38.9 °F (3.8 °C). The lowest recored low temperature was 27.0 °F (-2.8 °C) in 2020 and the lowest recored low temperature was 52.0 °F (11.1 °C) in 2017. The low temperature is usually* between 34.2 °F (1.2 °C) and 43.6 °F (6.5 °C). About a quarter of the time, the low temperature is less than 34.2 °F (1.2 °C), and another quarter of the time, the low temperature is greater than and 43.6 °F (6.5 °C). About 95% of the time, the low temperature has been between 25.2 °F (-3.8 °C) and 52.7 °F (11.5 °C).
Frost
On April 16 in NORTHERLY ISLAND expect the temperatures to drop below freezing for a risk of frost about 16.2% 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