Station information
- Integrated Surface Dataset (ISD) station ID: 997255
- Country: US
- Latitude: 41.73
- Longitude: -87.54
High Temperatures
On May 21 in 9087044 - CALUMET IL the average high temperature is 69.8 °F (21.0 °C). The lowest recored high temperature was 51.8 °F (11.0 °C) in 2019 and the highest recored high temperature was 88.2 °F (31.2 °C) in 2024. The high temperature is usually* between 61.8 °F (16.5 °C) and 77.9 °F (25.5 °C). About a quarter of the time, the high temperature is less than 61.8 °F (16.5 °C), and another quarter of the time, the high temperature is greater than and 77.9 °F (25.5 °C). About 95% of the time, the high temperature has been between 46.3 °F (8.0 °C) and 93.3 °F (34.1 °C).
Low Temperatures
On May 21 in 9087044 - CALUMET IL the average low temperature is 52.9 °F (11.6 °C). The lowest recored low temperature was 42.8 °F (6.0 °C) in 2015 and the lowest recored low temperature was 64.4 °F (18.0 °C) in 2009. The low temperature is usually* between 48.1 °F (9.0 °C) and 57.7 °F (14.3 °C). About a quarter of the time, the low temperature is less than 48.1 °F (9.0 °C), and another quarter of the time, the low temperature is greater than and 57.7 °F (14.3 °C). About 95% of the time, the low temperature has been between 39.0 °F (3.9 °C) and 66.8 °F (19.3 °C).
Frost
On May 21 in 9087044 - CALUMET IL 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:
- 9087044 - CALUMET IL — Integrated Surface Dataset (ISD) station ID: 997255 — from year 2005 to 2025