Station information
- Integrated Surface Dataset (ISD) station ID: 998499
- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On September 14 in NORTHERLY ISLAND the average high temperature is 75.0 °F (23.9 °C). The lowest recored high temperature was 65.1 °F (18.4 °C) in 2014 and the highest recored high temperature was 84.9 °F (29.4 °C) in 2016. The high temperature is usually* between 70.0 °F (21.1 °C) and 80.0 °F (26.6 °C). About a quarter of the time, the high temperature is less than 70.0 °F (21.1 °C), and another quarter of the time, the high temperature is greater than and 80.0 °F (26.6 °C). About 95% of the time, the high temperature has been between 60.4 °F (15.8 °C) and 89.5 °F (31.9 °C).
Low Temperatures
On September 14 in NORTHERLY ISLAND the average low temperature is 60.0 °F (15.5 °C). The lowest recored low temperature was 50.4 °F (10.2 °C) in 2014 and the lowest recored low temperature was 68.0 °F (20.0 °C) in 2021. The low temperature is usually* between 56.2 °F (13.4 °C) and 63.8 °F (17.7 °C). About a quarter of the time, the low temperature is less than 56.2 °F (13.4 °C), and another quarter of the time, the low temperature is greater than and 63.8 °F (17.7 °C). About 95% of the time, the low temperature has been between 48.9 °F (9.4 °C) and 71.1 °F (21.7 °C).
Frost
On September 14 in NORTHERLY ISLAND expect the temperatures to drop below freezing for a risk of frost about 0.0% 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