September 21 - custom location - Weather History and Averages

High Temperatures

On September 21 in this location the average high temperature is 79.9 °F (26.6 °C). The lowest recored high temperature was 64.9 °F (18.3 °C) in 1975 and the highest recored high temperature was 104.0 °F (40.0 °C) in 2015. The high temperature is usually* between 75.8 °F (24.4 °C) and 84.0 °F (28.9 °C). About a quarter of the time, the high temperature is less than 75.8 °F (24.4 °C), and another quarter of the time, the high temperature is greater than and 84.0 °F (28.9 °C). About 95% of the time, the high temperature has been between 68.1 °F (20.0 °C) and 91.8 °F (33.2 °C).

Low Temperatures

On September 21 in this location the average low temperature is 61.2 °F (16.2 °C). The lowest recored low temperature was 49.3 °F (9.6 °C) in 1941 and the lowest recored low temperature was 73.9 °F (23.3 °C) in 1983. The low temperature is usually* between 58.3 °F (14.6 °C) and 64.2 °F (17.9 °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 64.2 °F (17.9 °C). About 95% of the time, the low temperature has been between 52.7 °F (11.5 °C) and 69.7 °F (21.0 °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: