Station information
- Integrated Surface Dataset (ISD) station ID: 997255
- Country: US
- Latitude: 41.73
- Longitude: -87.54
High Temperatures
On April 18 in 9087044 - CALUMET IL the average high temperature is 58.9 °F (14.9 °C). The lowest recored high temperature was 35.1 °F (1.7 °C) in 2018 and the highest recored high temperature was 75.9 °F (24.4 °C) in 2025. The high temperature is usually* between 50.4 °F (10.2 °C) and 67.4 °F (19.6 °C). About a quarter of the time, the high temperature is less than 50.4 °F (10.2 °C), and another quarter of the time, the high temperature is greater than and 67.4 °F (19.6 °C). About 95% of the time, the high temperature has been between 34.3 °F (1.3 °C) and 83.5 °F (28.6 °C).
Low Temperatures
On April 18 in 9087044 - CALUMET IL the average low temperature is 42.6 °F (5.9 °C). The lowest recored low temperature was 33.4 °F (0.8 °C) in 2018 and the lowest recored low temperature was 56.8 °F (13.8 °C) in 2025. The low temperature is usually* between 38.1 °F (3.4 °C) and 47.0 °F (8.3 °C). About a quarter of the time, the low temperature is less than 38.1 °F (3.4 °C), and another quarter of the time, the low temperature is greater than and 47.0 °F (8.3 °C). About 95% of the time, the low temperature has been between 29.6 °F (-1.3 °C) and 55.5 °F (13.0 °C).
Frost
On April 18 in 9087044 - CALUMET IL expect the temperatures to drop below freezing for a risk of frost about 5.5% 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:
- 9087044 - CALUMET IL — Integrated Surface Dataset (ISD) station ID: 997255 — from year 2005 to 2025