- Country: US
- State: IL
- Latitude: 41.717
- Longitude: -87.533
High Temperatures
On September 15 in CALUMET (CGS) the average high temperature is 70.7 °F (21.5 °C). The lowest recored high temperature was 63.9 °F (17.7 °C) in 1988 and the highest recored high temperature was 73.9 °F (23.3 °C) in 1987. The high temperature is usually* between 67.8 °F (19.9 °C) and 73.6 °F (23.1 °C). About a quarter of the time, the high temperature is less than 67.8 °F (19.9 °C), and another quarter of the time, the high temperature is greater than and 73.6 °F (23.1 °C). About 95% of the time, the high temperature has been between 62.3 °F (16.8 °C) and 79.1 °F (26.2 °C).
Low Temperatures
On September 15 in CALUMET (CGS) the average low temperature is 61.0 °F (16.1 °C). The lowest recored low temperature was 58.8 °F (14.9 °C) in 1988 and the lowest recored low temperature was 65.8 °F (18.8 °C) in 1987. The low temperature is usually* between 57.5 °F (14.2 °C) and 64.5 °F (18.1 °C). About a quarter of the time, the low temperature is less than 57.5 °F (14.2 °C), and another quarter of the time, the low temperature is greater than and 64.5 °F (18.1 °C). About 95% of the time, the low temperature has been between 50.9 °F (10.5 °C) and 71.2 °F (21.8 °C).
Frost
On September 15 in CALUMET (CGS) expect the temperatures to drop below freezing for a risk of frost about 0.0% 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 1988