July 21 - custom location - Weather History and Averages

High Temperatures

On July 21 in this location the average high temperature is 89.1 °F (31.7 °C). The lowest recored high temperature was 73.4 °F (23.0 °C) in 2025 and the highest recored high temperature was 102.9 °F (39.4 °C) in 1986. The high temperature is usually* between 83.8 °F (28.8 °C) and 94.4 °F (34.7 °C). About a quarter of the time, the high temperature is less than 83.8 °F (28.8 °C), and another quarter of the time, the high temperature is greater than and 94.4 °F (34.7 °C). About 95% of the time, the high temperature has been between 73.6 °F (23.1 °C) and 104.6 °F (40.3 °C).

Low Temperatures

On July 21 in this location the average low temperature is 59.4 °F (15.2 °C). The lowest recored low temperature was 41.0 °F (5.0 °C) in 2011 and the lowest recored low temperature was 86.0 °F (30.0 °C) in 1989. The low temperature is usually* between 52.9 °F (11.6 °C) and 65.9 °F (18.9 °C). About a quarter of the time, the low temperature is less than 52.9 °F (11.6 °C), and another quarter of the time, the low temperature is greater than and 65.9 °F (18.9 °C). About 95% of the time, the low temperature has been between 40.5 °F (4.7 °C) and 78.3 °F (25.7 °C).

Frost

On July 21 in this location expect the temperatures to drop below freezing for a risk of frost about 0.2% 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: