Station information
- Integrated Surface Dataset (ISD) station ID: 722418
- Country: US
- State: IL
- Latitude: 41.717
- Longitude: -87.533
High Temperatures
On October 21 in CALUMET (CGS) the average high temperature is 48.1 °F (8.9 °C). The lowest recored high temperature was 40.8 °F (4.9 °C) in 1987 and the highest recored high temperature was 48.9 °F (9.4 °C) in 1989. The high temperature is usually* between 42.6 °F (5.9 °C) and 53.6 °F (12.0 °C). About a quarter of the time, the high temperature is less than 42.6 °F (5.9 °C), and another quarter of the time, the high temperature is greater than and 53.6 °F (12.0 °C). About 95% of the time, the high temperature has been between 32.1 °F (0.0 °C) and 64.1 °F (17.8 °C).
Low Temperatures
On October 21 in CALUMET (CGS) the average low temperature is 36.2 °F (2.4 °C). The lowest recored low temperature was 32.9 °F (0.5 °C) in 1987 and the lowest recored low temperature was 38.8 °F (3.8 °C) in 1989. The low temperature is usually* between 34.3 °F (1.3 °C) and 38.2 °F (3.4 °C). About a quarter of the time, the low temperature is less than 34.3 °F (1.3 °C), and another quarter of the time, the low temperature is greater than and 38.2 °F (3.4 °C). About 95% of the time, the low temperature has been between 30.5 °F (-0.8 °C) and 42.0 °F (5.5 °C).
Frost
On October 21 in CALUMET (CGS) expect the temperatures to drop below freezing for a risk of frost about 7.4% 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:
- CALUMET (CGS) — Integrated Surface Dataset (ISD) station ID: 722418 — from year 1987 to 1989