May 21 - custom location - Weather History and Averages

High Temperatures

On May 21 in this location the average high temperature is 69.9 °F (21.1 °C). The lowest recored high temperature was 49.8 °F (9.9 °C) in 1979 and the highest recored high temperature was 90.0 °F (32.2 °C) in 1977. The high temperature is usually* between 62.6 °F (17.0 °C) and 77.2 °F (25.1 °C). About a quarter of the time, the high temperature is less than 62.6 °F (17.0 °C), and another quarter of the time, the high temperature is greater than and 77.2 °F (25.1 °C). About 95% of the time, the high temperature has been between 48.8 °F (9.3 °C) and 91.0 °F (32.8 °C).

Low Temperatures

On May 21 in this location the average low temperature is 52.7 °F (11.5 °C). The lowest recored low temperature was 38.5 °F (3.6 °C) in 2015 and the lowest recored low temperature was 70.9 °F (21.6 °C) in 1977. The low temperature is usually* between 47.2 °F (8.4 °C) and 58.1 °F (14.5 °C). About a quarter of the time, the low temperature is less than 47.2 °F (8.4 °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 36.8 °F (2.7 °C) and 68.5 °F (20.3 °C).

Frost

On May 21 in this location expect the temperatures to drop below freezing for a risk of frost about 0.5% 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: