Station information
- Integrated Surface Dataset (ISD) station ID: 998499
- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On December 9 in NORTHERLY ISLAND the average high temperature is 40.4 °F (4.7 °C). The lowest recored high temperature was 26.2 °F (-3.2 °C) in 2013 and the highest recored high temperature was 55.0 °F (12.8 °C) in 2023. The high temperature is usually* between 34.0 °F (1.1 °C) and 46.7 °F (8.2 °C). About a quarter of the time, the high temperature is less than 34.0 °F (1.1 °C), and another quarter of the time, the high temperature is greater than and 46.7 °F (8.2 °C). About 95% of the time, the high temperature has been between 21.9 °F (-5.6 °C) and 58.8 °F (14.9 °C).
Low Temperatures
On December 9 in NORTHERLY ISLAND the average low temperature is 28.6 °F (-1.9 °C). The lowest recored low temperature was 16.9 °F (-8.4 °C) in 2013 and the lowest recored low temperature was 43.2 °F (6.2 °C) in 2023. The low temperature is usually* between 22.1 °F (-5.5 °C) and 35.1 °F (1.7 °C). About a quarter of the time, the low temperature is less than 22.1 °F (-5.5 °C), and another quarter of the time, the low temperature is greater than and 35.1 °F (1.7 °C). About 95% of the time, the low temperature has been between 9.7 °F (-12.4 °C) and 47.5 °F (8.6 °C).
Frost
On December 9 in NORTHERLY ISLAND expect the temperatures to drop below freezing for a risk of frost about 63.8% 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 2023