Station information
- Integrated Surface Dataset (ISD) station ID: 725344
- Country: US
- Latitude: 41.72
- Longitude: -87.53
High Temperatures
On April 21 in CHICAGO / CALUMET COAST GUARD the average high temperature is 59.3 °F (15.2 °C). The lowest recored high temperature was 52.0 °F (11.1 °C) in 1994 and the highest recored high temperature was 59.0 °F (15.0 °C) in 1996. The high temperature is usually* between 52.8 °F (11.5 °C) and 65.9 °F (18.8 °C). About a quarter of the time, the high temperature is less than 52.8 °F (11.5 °C), and another quarter of the time, the high temperature is greater than and 65.9 °F (18.8 °C). About 95% of the time, the high temperature has been between 40.3 °F (4.6 °C) and 78.4 °F (25.8 °C).
Low Temperatures
On April 21 in CHICAGO / CALUMET COAST GUARD the average low temperature is 42.9 °F (6.1 °C). The lowest recored low temperature was 41.0 °F (5.0 °C) in 1994 and the lowest recored low temperature was 41.9 °F (5.5 °C) in 1996. The low temperature is usually* between 40.8 °F (4.9 °C) and 45.0 °F (7.2 °C). About a quarter of the time, the low temperature is less than 40.8 °F (4.9 °C), and another quarter of the time, the low temperature is greater than and 45.0 °F (7.2 °C). About 95% of the time, the low temperature has been between 36.8 °F (2.7 °C) and 49.0 °F (9.4 °C).
Frost
On April 21 in CHICAGO / CALUMET COAST GUARD 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:
- CHICAGO / CALUMET COAST GUARD — Integrated Surface Dataset (ISD) station ID: 725344 — from year 1994 to 1996