September 21 - custom location - Weather History and Averages

High Temperatures

On September 21 in this location the average high temperature is 73.8 °F (23.2 °C). The lowest recored high temperature was 59.0 °F (15.0 °C) in 1993 and the highest recored high temperature was 97.0 °F (36.1 °C) in 2017. The high temperature is usually* between 68.1 °F (20.0 °C) and 79.6 °F (26.4 °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 79.6 °F (26.4 °C). About 95% of the time, the high temperature has been between 57.1 °F (13.9 °C) and 90.6 °F (32.5 °C).

Low Temperatures

On September 21 in this location the average low temperature is 52.5 °F (11.4 °C). The lowest recored low temperature was 30.2 °F (-1.0 °C) in 2006 and the lowest recored low temperature was 69.1 °F (20.6 °C) in 1965. The low temperature is usually* between 47.1 °F (8.4 °C) and 57.9 °F (14.4 °C). About a quarter of the time, the low temperature is less than 47.1 °F (8.4 °C), and another quarter of the time, the low temperature is greater than and 57.9 °F (14.4 °C). About 95% of the time, the low temperature has been between 36.7 °F (2.6 °C) and 68.2 °F (20.1 °C).

Frost

On September 21 in this location expect the temperatures to drop below freezing for a risk of frost about 0.5% 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: