May 21 - custom location - Weather History and Averages

High Temperatures

On May 21 in this location the average high temperature is 79.8 °F (26.6 °C). The lowest recored high temperature was 62.6 °F (17.0 °C) in 2019 and the highest recored high temperature was 104.0 °F (40.0 °C) in 2000. The high temperature is usually* between 74.2 °F (23.4 °C) and 85.4 °F (29.7 °C). About a quarter of the time, the high temperature is less than 74.2 °F (23.4 °C), and another quarter of the time, the high temperature is greater than and 85.4 °F (29.7 °C). About 95% of the time, the high temperature has been between 63.5 °F (17.5 °C) and 96.1 °F (35.6 °C).

Low Temperatures

On May 21 in this location the average low temperature is 54.4 °F (12.4 °C). The lowest recored low temperature was 42.1 °F (5.6 °C) in 1972 and the lowest recored low temperature was 64.4 °F (18.0 °C) in 2025. The low temperature is usually* between 51.7 °F (10.9 °C) and 57.1 °F (13.9 °C). About a quarter of the time, the low temperature is less than 51.7 °F (10.9 °C), and another quarter of the time, the low temperature is greater than and 57.1 °F (13.9 °C). About 95% of the time, the low temperature has been between 46.5 °F (8.1 °C) and 62.2 °F (16.8 °C).

Frost

On May 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: