September 20 - custom location - Weather History and Averages

High Temperatures

On September 20 in this location the average high temperature is 71.2 °F (21.8 °C). The lowest recored high temperature was 52.3 °F (11.3 °C) in 1962 and the highest recored high temperature was 89.1 °F (31.7 °C) in 2024. The high temperature is usually* between 65.9 °F (18.9 °C) and 76.5 °F (24.7 °C). About a quarter of the time, the high temperature is less than 65.9 °F (18.9 °C), and another quarter of the time, the high temperature is greater than and 76.5 °F (24.7 °C). About 95% of the time, the high temperature has been between 55.8 °F (13.2 °C) and 86.6 °F (30.4 °C).

Low Temperatures

On September 20 in this location the average low temperature is 54.4 °F (12.4 °C). The lowest recored low temperature was 30.4 °F (-0.9 °C) in 1956 and the lowest recored low temperature was 71.6 °F (22.0 °C) in 2021. The low temperature is usually* between 49.3 °F (9.6 °C) and 59.4 °F (15.2 °C). About a quarter of the time, the low temperature is less than 49.3 °F (9.6 °C), and another quarter of the time, the low temperature is greater than and 59.4 °F (15.2 °C). About 95% of the time, the low temperature has been between 39.6 °F (4.2 °C) and 69.1 °F (20.6 °C).

Frost

On September 20 in this location expect the temperatures to drop below freezing for a risk of frost about 0.2% 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: