September 20 - custom location - Weather History and Averages

High Temperatures

On September 20 in this location the average high temperature is 73.9 °F (23.3 °C). The lowest recored high temperature was 55.0 °F (12.8 °C) in 1991 and the highest recored high temperature was 91.9 °F (33.3 °C) in 1978. The high temperature is usually* between 68.1 °F (20.0 °C) and 79.7 °F (26.5 °C). About a quarter of the time, the high temperature is less than 68.1 °F (20.0 °C), and another quarter of the time, the high temperature is greater than and 79.7 °F (26.5 °C). About 95% of the time, the high temperature has been between 57.0 °F (13.9 °C) and 90.8 °F (32.7 °C).

Low Temperatures

On September 20 in this location the average low temperature is 54.1 °F (12.3 °C). The lowest recored low temperature was 35.1 °F (1.7 °C) in 2020 and the lowest recored low temperature was 68.9 °F (20.5 °C) in 2013. The low temperature is usually* between 48.9 °F (9.4 °C) and 59.3 °F (15.1 °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 59.3 °F (15.1 °C). About 95% of the time, the low temperature has been between 39.0 °F (3.9 °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: