Station information
- Integrated Surface Dataset (ISD) station ID: 997255
- Country: US
- Latitude: 41.73
- Longitude: -87.54
High Temperatures
On May 18 in 9087044 - CALUMET IL the average high temperature is 67.0 °F (19.5 °C). The lowest recored high temperature was 49.3 °F (9.6 °C) in 2011 and the highest recored high temperature was 82.8 °F (28.2 °C) in 2024. The high temperature is usually* between 60.0 °F (15.5 °C) and 74.1 °F (23.4 °C). About a quarter of the time, the high temperature is less than 60.0 °F (15.5 °C), and another quarter of the time, the high temperature is greater than and 74.1 °F (23.4 °C). About 95% of the time, the high temperature has been between 46.5 °F (8.1 °C) and 87.6 °F (30.9 °C).
Low Temperatures
On May 18 in 9087044 - CALUMET IL the average low temperature is 51.6 °F (10.9 °C). The lowest recored low temperature was 43.5 °F (6.4 °C) in 2019 and the lowest recored low temperature was 69.8 °F (21.0 °C) in 2017. The low temperature is usually* between 46.8 °F (8.2 °C) and 56.5 °F (13.6 °C). About a quarter of the time, the low temperature is less than 46.8 °F (8.2 °C), and another quarter of the time, the low temperature is greater than and 56.5 °F (13.6 °C). About 95% of the time, the low temperature has been between 37.5 °F (3.0 °C) and 65.8 °F (18.8 °C).
Frost
On May 18 in 9087044 - CALUMET IL expect the temperatures to drop below freezing for a risk of frost about 0.3% 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:
- 9087044 - CALUMET IL — Integrated Surface Dataset (ISD) station ID: 997255 — from year 2005 to 2025