- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On December 30 in NORTHERLY ISLAND the average high temperature is 39.2 °F (4.0 °C). The lowest recored high temperature was 15.3 °F (-9.3 °C) in 2017 and the highest recored high temperature was 57.9 °F (14.4 °C) in 2019. The high temperature is usually* between 31.4 °F (-0.3 °C) and 47.0 °F (8.4 °C). About a quarter of the time, the high temperature is less than 31.4 °F (-0.3 °C), and another quarter of the time, the high temperature is greater than and 47.0 °F (8.4 °C). About 95% of the time, the high temperature has been between 16.5 °F (-8.6 °C) and 61.9 °F (16.6 °C).
Low Temperatures
On December 30 in NORTHERLY ISLAND the average low temperature is 24.8 °F (-4.0 °C). The lowest recored low temperature was 4.8 °F (-15.1 °C) in 2017 and the lowest recored low temperature was 38.1 °F (3.4 °C) in 2022. The low temperature is usually* between 18.3 °F (-7.6 °C) and 31.3 °F (-0.4 °C). About a quarter of the time, the low temperature is less than 18.3 °F (-7.6 °C), and another quarter of the time, the low temperature is greater than and 31.3 °F (-0.4 °C). About 95% of the time, the low temperature has been between 5.9 °F (-14.5 °C) and 43.7 °F (6.5 °C).
Frost
On December 30 in NORTHERLY ISLAND expect the temperatures to drop below freezing for a risk of frost about 77.2% 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 2012 to 2024