September 20 - custom location - Weather History and Averages

High Temperatures

On September 20 in this location the average high temperature is 71.3 °F (21.8 °C). The lowest recored high temperature was 54.0 °F (12.2 °C) in 1991 and the highest recored high temperature was 89.6 °F (32.0 °C) in 2016. The high temperature is usually* between 65.8 °F (18.8 °C) and 76.8 °F (24.9 °C). About a quarter of the time, the high temperature is less than 65.8 °F (18.8 °C), and another quarter of the time, the high temperature is greater than and 76.8 °F (24.9 °C). About 95% of the time, the high temperature has been between 55.4 °F (13.0 °C) and 87.3 °F (30.7 °C).

Low Temperatures

On September 20 in this location the average low temperature is 55.6 °F (13.1 °C). The lowest recored low temperature was 36.0 °F (2.2 °C) in 1991 and the lowest recored low temperature was 71.6 °F (22.0 °C) in 2021. The low temperature is usually* between 50.6 °F (10.3 °C) and 60.6 °F (15.9 °C). About a quarter of the time, the low temperature is less than 50.6 °F (10.3 °C), and another quarter of the time, the low temperature is greater than and 60.6 °F (15.9 °C). About 95% of the time, the low temperature has been between 41.1 °F (5.0 °C) and 70.1 °F (21.2 °C).

Frost

On September 20 in this location expect the temperatures to drop below freezing for a risk of frost about 0.1% 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: