September 20 - custom location - Weather History and Averages

High Temperatures

On September 20 in this location the average high temperature is 75.6 °F (24.2 °C). The lowest recored high temperature was 53.1 °F (11.7 °C) in 1962 and the highest recored high temperature was 99.0 °F (37.2 °C) in 1978. The high temperature is usually* between 70.3 °F (21.3 °C) and 80.9 °F (27.1 °C). About a quarter of the time, the high temperature is less than 70.3 °F (21.3 °C), and another quarter of the time, the high temperature is greater than and 80.9 °F (27.1 °C). About 95% of the time, the high temperature has been between 60.3 °F (15.7 °C) and 90.9 °F (32.7 °C).

Low Temperatures

On September 20 in this location the average low temperature is 54.5 °F (12.5 °C). The lowest recored low temperature was 32.4 °F (0.2 °C) in 2020 and the lowest recored low temperature was 72.9 °F (22.7 °C) in 1983. The low temperature is usually* between 48.9 °F (9.4 °C) and 60.1 °F (15.6 °C). About a quarter of the time, the low temperature is less than 48.9 °F (9.4 °C), and another quarter of the time, the low temperature is greater than and 60.1 °F (15.6 °C). About 95% of the time, the low temperature has been between 38.3 °F (3.5 °C) and 70.7 °F (21.5 °C).

Frost

On September 20 in this location expect the temperatures to drop below freezing for a risk of frost about 0.3% of the time.

Usually* in this context means around 50% of the time, assuming a normal distribution of values.

Data Source(s)

The data used to compute the average high/low temperatures for this location were taken from the following stations: