Station information
- Integrated Surface Dataset (ISD) station ID: 725306
- Weather Bureau Army Navy (WBAN): 14855
- Country: US
- State: IL
- Latitude: 42.083
- Longitude: -87.833
High Temperatures
On May 21 in NAVAL AIR STATION the average high temperature is 73.4 °F (23.0 °C). The lowest recored high temperature was 48.9 °F (9.4 °C) in 1969 and the highest recored high temperature was 90.0 °F (32.2 °C) in 1987. The high temperature is usually* between 66.9 °F (19.4 °C) and 80.0 °F (26.6 °C). About a quarter of the time, the high temperature is less than 66.9 °F (19.4 °C), and another quarter of the time, the high temperature is greater than and 80.0 °F (26.6 °C). About 95% of the time, the high temperature has been between 54.4 °F (12.5 °C) and 92.4 °F (33.6 °C).
Low Temperatures
On May 21 in NAVAL AIR STATION the average low temperature is 51.7 °F (10.9 °C). The lowest recored low temperature was 39.0 °F (3.9 °C) in 1954 and the lowest recored low temperature was 66.0 °F (18.9 °C) in 1970. The low temperature is usually* between 46.6 °F (8.1 °C) and 56.7 °F (13.7 °C). About a quarter of the time, the low temperature is less than 46.6 °F (8.1 °C), and another quarter of the time, the low temperature is greater than and 56.7 °F (13.7 °C). About 95% of the time, the low temperature has been between 36.9 °F (2.7 °C) and 66.4 °F (19.1 °C).
Frost
On May 21 in NAVAL AIR STATION expect the temperatures to drop below freezing for a risk of frost about 0.4% 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:
- NAVAL AIR STATION — Integrated Surface Dataset (ISD) station ID: 725306 — Weather Bureau Army Navy (WBAN): 14855 — from year 1973 to 1994
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— Weather Bureau Army Navy (WBAN): 14855 — from year 1945 to 1972