May 21 - custom location - Weather History and Averages

High Temperatures

On May 21 in this location the average high temperature is 74.1 °F (23.4 °C). The lowest recored high temperature was 54.0 °F (12.2 °C) in 1986 and the highest recored high temperature was 91.0 °F (32.8 °C) in 2024. The high temperature is usually* between 67.7 °F (19.8 °C) and 80.5 °F (27.0 °C). About a quarter of the time, the high temperature is less than 67.7 °F (19.8 °C), and another quarter of the time, the high temperature is greater than and 80.5 °F (27.0 °C). About 95% of the time, the high temperature has been between 55.4 °F (13.0 °C) and 92.8 °F (33.8 °C).

Low Temperatures

On May 21 in this location the average low temperature is 50.3 °F (10.1 °C). The lowest recored low temperature was 34.0 °F (1.1 °C) in 1964 and the lowest recored low temperature was 72.0 °F (22.2 °C) in 2013. The low temperature is usually* between 44.9 °F (7.2 °C) and 55.6 °F (13.1 °C). About a quarter of the time, the low temperature is less than 44.9 °F (7.2 °C), and another quarter of the time, the low temperature is greater than and 55.6 °F (13.1 °C). About 95% of the time, the low temperature has been between 34.7 °F (1.5 °C) and 65.8 °F (18.8 °C).

Frost

On May 21 in this location expect the temperatures to drop below freezing for a risk of frost about 1.1% 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: