Station information
- Integrated Surface Dataset (ISD) station ID: 998499
- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On March 23 in NORTHERLY ISLAND the average high temperature is 47.0 °F (8.4 °C). The lowest recored high temperature was 35.1 °F (1.7 °C) in 2014 and the highest recored high temperature was 62.1 °F (16.7 °C) in 2021. The high temperature is usually* between 39.0 °F (3.9 °C) and 55.1 °F (12.8 °C). About a quarter of the time, the high temperature is less than 39.0 °F (3.9 °C), and another quarter of the time, the high temperature is greater than and 55.1 °F (12.8 °C). About 95% of the time, the high temperature has been between 23.7 °F (-4.6 °C) and 70.4 °F (21.3 °C).
Low Temperatures
On March 23 in NORTHERLY ISLAND the average low temperature is 32.6 °F (0.3 °C). The lowest recored low temperature was 22.5 °F (-5.3 °C) in 2014 and the lowest recored low temperature was 44.8 °F (7.1 °C) in 2021. The low temperature is usually* between 28.9 °F (-1.7 °C) and 36.3 °F (2.4 °C). About a quarter of the time, the low temperature is less than 28.9 °F (-1.7 °C), and another quarter of the time, the low temperature is greater than and 36.3 °F (2.4 °C). About 95% of the time, the low temperature has been between 21.9 °F (-5.6 °C) and 43.4 °F (6.3 °C).
Frost
On March 23 in NORTHERLY ISLAND expect the temperatures to drop below freezing for a risk of frost about 45.5% 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