September 21 - custom location - Weather History and Averages

High Temperatures

On September 21 in this location the average high temperature is 80.4 °F (26.9 °C). The lowest recored high temperature was 50.0 °F (10.0 °C) in 1998 and the highest recored high temperature was 108.3 °F (42.4 °C) in 1943. The high temperature is usually* between 76.0 °F (24.5 °C) and 84.9 °F (29.4 °C). About a quarter of the time, the high temperature is less than 76.0 °F (24.5 °C), and another quarter of the time, the high temperature is greater than and 84.9 °F (29.4 °C). About 95% of the time, the high temperature has been between 67.6 °F (19.8 °C) and 93.3 °F (34.1 °C).

Low Temperatures

On September 21 in this location the average low temperature is 61.0 °F (16.1 °C). The lowest recored low temperature was 37.4 °F (3.0 °C) in 2007 and the lowest recored low temperature was 80.6 °F (27.0 °C) in 2015. The low temperature is usually* between 58.3 °F (14.6 °C) and 63.7 °F (17.6 °C). About a quarter of the time, the low temperature is less than 58.3 °F (14.6 °C), and another quarter of the time, the low temperature is greater than and 63.7 °F (17.6 °C). About 95% of the time, the low temperature has been between 53.3 °F (11.8 °C) and 68.7 °F (20.4 °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: