- Country: US
- State: IL
- Latitude: 41.717
- Longitude: -87.533
High Temperatures
On May 21 in CALUMET (CGS) the average high temperature is 62.6 °F (17.0 °C). The lowest recored high temperature was 49.8 °F (9.9 °C) in 1990 and the highest recored high temperature was 72.0 °F (22.2 °C) in 1989. The high temperature is usually* between 57.0 °F (13.9 °C) and 68.1 °F (20.1 °C). About a quarter of the time, the high temperature is less than 57.0 °F (13.9 °C), and another quarter of the time, the high temperature is greater than and 68.1 °F (20.1 °C). About 95% of the time, the high temperature has been between 46.5 °F (8.1 °C) and 78.6 °F (25.9 °C).
Low Temperatures
On May 21 in CALUMET (CGS) the average low temperature is 52.5 °F (11.4 °C). The lowest recored low temperature was 45.9 °F (7.7 °C) in 1990 and the lowest recored low temperature was 54.0 °F (12.2 °C) in 1989. The low temperature is usually* between 49.2 °F (9.5 °C) and 55.8 °F (13.2 °C). About a quarter of the time, the low temperature is less than 49.2 °F (9.5 °C), and another quarter of the time, the low temperature is greater than and 55.8 °F (13.2 °C). About 95% of the time, the low temperature has been between 42.9 °F (6.0 °C) and 62.1 °F (16.7 °C).
Frost
On May 21 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 1988 to 1990