- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On May 14 in NORTHERLY ISLAND the average high temperature is 67.4 °F (19.7 °C). The lowest recored high temperature was 55.4 °F (13.0 °C) in 2015 and the highest recored high temperature was 83.5 °F (28.6 °C) in 2013. The high temperature is usually* between 59.5 °F (15.3 °C) and 75.4 °F (24.1 °C). About a quarter of the time, the high temperature is less than 59.5 °F (15.3 °C), and another quarter of the time, the high temperature is greater than and 75.4 °F (24.1 °C). About 95% of the time, the high temperature has been between 44.2 °F (6.8 °C) and 90.6 °F (32.6 °C).
Low Temperatures
On May 14 in NORTHERLY ISLAND the average low temperature is 48.9 °F (9.4 °C). The lowest recored low temperature was 42.1 °F (5.6 °C) in 2015 and the lowest recored low temperature was 60.1 °F (15.6 °C) in 2022. The low temperature is usually* between 44.9 °F (7.2 °C) and 52.9 °F (11.6 °C). About a quarter of the time, the low temperature is less than 44.9 °F (7.2 °C), and another quarter of the time, the low temperature is greater than and 52.9 °F (11.6 °C). About 95% of the time, the low temperature has been between 37.3 °F (3.0 °C) and 60.5 °F (15.8 °C).
Frost
On May 14 in NORTHERLY ISLAND expect the temperatures to drop below freezing for a risk of frost about 0.2% 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 2013 to 2025