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 September 20 in <NA> the average high temperature is 72.4 °F (22.4 °C). The lowest recored high temperature was 55.9 °F (13.3 °C) in 1991 and the highest recored high temperature was 89.1 °F (31.7 °C) in 1980. The high temperature is usually* between 66.5 °F (19.2 °C) and 78.3 °F (25.7 °C). About a quarter of the time, the high temperature is less than 66.5 °F (19.2 °C), and another quarter of the time, the high temperature is greater than and 78.3 °F (25.7 °C). About 95% of the time, the high temperature has been between 55.2 °F (12.9 °C) and 89.6 °F (32.0 °C).
Low Temperatures
On September 20 in <NA> the average low temperature is 60.3 °F (15.7 °C). The lowest recored low temperature was 45.0 °F (7.2 °C) in 1991 and the lowest recored low temperature was 71.6 °F (22.0 °C) in 1998. The low temperature is usually* between 56.0 °F (13.3 °C) and 64.7 °F (18.2 °C). About a quarter of the time, the low temperature is less than 56.0 °F (13.3 °C), and another quarter of the time, the low temperature is greater than and 64.7 °F (18.2 °C). About 95% of the time, the low temperature has been between 47.7 °F (8.7 °C) and 73.0 °F (22.8 °C).
Frost
On September 20 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:
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— 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
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— Weather Bureau Army Navy (WBAN): 94866 — from year 1966 to 1969