August 21 - custom location - Weather History and Averages

High Temperatures

On August 21 in this location the average high temperature is 86.5 °F (30.3 °C). The lowest recored high temperature was 62.1 °F (16.7 °C) in 1983 and the highest recored high temperature was 105.8 °F (41.0 °C) in 2025. The high temperature is usually* between 82.5 °F (28.1 °C) and 90.6 °F (32.5 °C). About a quarter of the time, the high temperature is less than 82.5 °F (28.1 °C), and another quarter of the time, the high temperature is greater than and 90.6 °F (32.5 °C). About 95% of the time, the high temperature has been between 74.9 °F (23.8 °C) and 98.2 °F (36.8 °C).

Low Temperatures

On August 21 in this location the average low temperature is 63.9 °F (17.7 °C). The lowest recored low temperature was 48.9 °F (9.4 °C) in 1983 and the lowest recored low temperature was 84.2 °F (29.0 °C) in 2012. The low temperature is usually* between 60.8 °F (16.0 °C) and 66.9 °F (19.4 °C). About a quarter of the time, the low temperature is less than 60.8 °F (16.0 °C), and another quarter of the time, the low temperature is greater than and 66.9 °F (19.4 °C). About 95% of the time, the low temperature has been between 55.0 °F (12.8 °C) and 72.7 °F (22.6 °C).

Frost

On August 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: