Station information
- Integrated Surface Dataset (ISD) station ID: 725346
- Weather Bureau Army Navy (WBAN): 94866
- Country: US
- State: IL
- Latitude: 41.867
- Longitude: -87.6
High Temperatures
On August 21 in <NA> the average high temperature is 80.3 °F (26.8 °C). The lowest recored high temperature was 70.0 °F (21.1 °C) in 1977 and the highest recored high temperature was 93.9 °F (34.4 °C) in 1983. The high temperature is usually* between 76.3 °F (24.6 °C) and 84.3 °F (29.0 °C). About a quarter of the time, the high temperature is less than 76.3 °F (24.6 °C), and another quarter of the time, the high temperature is greater than and 84.3 °F (29.0 °C). About 95% of the time, the high temperature has been between 68.6 °F (20.4 °C) and 91.9 °F (33.3 °C).
Low Temperatures
On August 21 in <NA> the average low temperature is 69.4 °F (20.8 °C). The lowest recored low temperature was 59.0 °F (15.0 °C) in 1997 and the lowest recored low temperature was 81.0 °F (27.2 °C) in 1968. The low temperature is usually* between 66.2 °F (19.0 °C) and 72.5 °F (22.5 °C). About a quarter of the time, the low temperature is less than 66.2 °F (19.0 °C), and another quarter of the time, the low temperature is greater than and 72.5 °F (22.5 °C). About 95% of the time, the low temperature has been between 60.1 °F (15.6 °C) and 78.6 °F (25.9 °C).
Frost
On August 21 in <NA> 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:
-
— Integrated Surface Dataset (ISD) station ID: 725346 — from year 2000 to 2002 - CHICAGO/MEIGS — Integrated Surface Dataset (ISD) station ID: 725346 — Weather Bureau Army Navy (WBAN): 94866 — from year 1973 to 1999
-
— Weather Bureau Army Navy (WBAN): 94866 — from year 1966 to 1969