September 21 - custom location - Weather History and Averages

High Temperatures

On September 21 in this location the average high temperature is 81.1 °F (27.3 °C). The lowest recored high temperature was 65.8 °F (18.8 °C) in 1991 and the highest recored high temperature was 104.0 °F (40.0 °C) in 2015. The high temperature is usually* between 76.8 °F (24.9 °C) and 85.5 °F (29.7 °C). About a quarter of the time, the high temperature is less than 76.8 °F (24.9 °C), and another quarter of the time, the high temperature is greater than and 85.5 °F (29.7 °C). About 95% of the time, the high temperature has been between 68.5 °F (20.3 °C) and 93.8 °F (34.3 °C).

Low Temperatures

On September 21 in this location the average low temperature is 60.0 °F (15.5 °C). The lowest recored low temperature was 45.0 °F (7.2 °C) in 2006 and the lowest recored low temperature was 73.9 °F (23.3 °C) in 1983. The low temperature is usually* between 56.8 °F (13.8 °C) and 63.1 °F (17.3 °C). About a quarter of the time, the low temperature is less than 56.8 °F (13.8 °C), and another quarter of the time, the low temperature is greater than and 63.1 °F (17.3 °C). About 95% of the time, the low temperature has been between 50.8 °F (10.4 °C) and 69.2 °F (20.7 °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: