September 21 - custom location - Weather History and Averages

High Temperatures

On September 21 in this location the average high temperature is 73.9 °F (23.3 °C). The lowest recored high temperature was 63.3 °F (17.4 °C) in 2010 and the highest recored high temperature was 93.0 °F (33.9 °C) in 2015. The high temperature is usually* between 70.8 °F (21.5 °C) and 77.0 °F (25.0 °C). About a quarter of the time, the high temperature is less than 70.8 °F (21.5 °C), and another quarter of the time, the high temperature is greater than and 77.0 °F (25.0 °C). About 95% of the time, the high temperature has been between 64.8 °F (18.2 °C) and 82.9 °F (28.3 °C).

Low Temperatures

On September 21 in this location the average low temperature is 57.3 °F (14.1 °C). The lowest recored low temperature was 46.0 °F (7.8 °C) in 1968 and the lowest recored low temperature was 72.0 °F (22.2 °C) in 1983. The low temperature is usually* between 54.1 °F (12.3 °C) and 60.6 °F (15.9 °C). About a quarter of the time, the low temperature is less than 54.1 °F (12.3 °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 47.9 °F (8.8 °C) and 66.8 °F (19.4 °C).

Frost

On September 21 in this location expect the temperatures to drop below freezing for a risk of frost about 0.0% 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: