- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On March 12 in NORTHERLY ISLAND the average high temperature is 45.2 °F (7.4 °C). The lowest recored high temperature was 27.0 °F (-2.8 °C) in 2022 and the highest recored high temperature was 69.6 °F (20.9 °C) in 2024. The high temperature is usually* between 37.8 °F (3.2 °C) and 52.6 °F (11.5 °C). About a quarter of the time, the high temperature is less than 37.8 °F (3.2 °C), and another quarter of the time, the high temperature is greater than and 52.6 °F (11.5 °C). About 95% of the time, the high temperature has been between 23.8 °F (-4.6 °C) and 66.7 °F (19.3 °C).
Low Temperatures
On March 12 in NORTHERLY ISLAND the average low temperature is 30.6 °F (-0.8 °C). The lowest recored low temperature was 12.0 °F (-11.1 °C) in 2022 and the lowest recored low temperature was 50.2 °F (10.1 °C) in 2024. The low temperature is usually* between 25.2 °F (-3.8 °C) and 36.0 °F (2.2 °C). About a quarter of the time, the low temperature is less than 25.2 °F (-3.8 °C), and another quarter of the time, the low temperature is greater than and 36.0 °F (2.2 °C). About 95% of the time, the low temperature has been between 14.8 °F (-9.5 °C) and 46.4 °F (8.0 °C).
Frost
On March 12 in NORTHERLY ISLAND expect the temperatures to drop below freezing for a risk of frost about 56.9% 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