Station information
- Integrated Surface Dataset (ISD) station ID: 997255
- Country: US
- Latitude: 41.73
- Longitude: -87.54
High Temperatures
On February 21 in 9087044 - CALUMET IL the average high temperature is 39.9 °F (4.4 °C). The lowest recored high temperature was 21.4 °F (-5.9 °C) in 2008 and the highest recored high temperature was 63.9 °F (17.7 °C) in 2024. The high temperature is usually* between 31.7 °F (-0.2 °C) and 48.1 °F (9.0 °C). About a quarter of the time, the high temperature is less than 31.7 °F (-0.2 °C), and another quarter of the time, the high temperature is greater than and 48.1 °F (9.0 °C). About 95% of the time, the high temperature has been between 16.0 °F (-8.9 °C) and 63.8 °F (17.7 °C).
Low Temperatures
On February 21 in 9087044 - CALUMET IL the average low temperature is 26.9 °F (-2.8 °C). The lowest recored low temperature was 11.8 °F (-11.2 °C) in 2025 and the lowest recored low temperature was 50.7 °F (10.4 °C) in 2017. The low temperature is usually* between 19.4 °F (-7.0 °C) and 34.4 °F (1.4 °C). About a quarter of the time, the low temperature is less than 19.4 °F (-7.0 °C), and another quarter of the time, the low temperature is greater than and 34.4 °F (1.4 °C). About 95% of the time, the low temperature has been between 5.1 °F (-14.9 °C) and 48.7 °F (9.3 °C).
Frost
On February 21 in 9087044 - CALUMET IL expect the temperatures to drop below freezing for a risk of frost about 67.6% 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