May 21 - custom location - Weather History and Averages

High Temperatures

On May 21 in this location the average high temperature is 70.0 °F (21.1 °C). The lowest recored high temperature was 49.8 °F (9.9 °C) in 1990 and the highest recored high temperature was 89.6 °F (32.0 °C) in 2024. The high temperature is usually* between 63.2 °F (17.3 °C) and 76.8 °F (24.9 °C). About a quarter of the time, the high temperature is less than 63.2 °F (17.3 °C), and another quarter of the time, the high temperature is greater than and 76.8 °F (24.9 °C). About 95% of the time, the high temperature has been between 50.2 °F (10.1 °C) and 89.7 °F (32.1 °C).

Low Temperatures

On May 21 in this location the average low temperature is 53.5 °F (11.9 °C). The lowest recored low temperature was 33.8 °F (1.0 °C) in 2002 and the lowest recored low temperature was 68.5 °F (20.3 °C) in 2021. The low temperature is usually* between 48.8 °F (9.4 °C) and 58.1 °F (14.5 °C). About a quarter of the time, the low temperature is less than 48.8 °F (9.4 °C), and another quarter of the time, the low temperature is greater than and 58.1 °F (14.5 °C). About 95% of the time, the low temperature has been between 40.0 °F (4.5 °C) and 67.0 °F (19.4 °C).

Frost

On May 21 in this location expect the temperatures to drop below freezing for a risk of frost about 0.1% 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: