May 21 - custom location - Weather History and Averages

High Temperatures

On May 21 in this location the average high temperature is 67.4 °F (19.6 °C). The lowest recored high temperature was 54.0 °F (12.2 °C) in 1990 and the highest recored high temperature was 87.1 °F (30.6 °C) in 2017. The high temperature is usually* between 64.7 °F (18.2 °C) and 70.0 °F (21.1 °C). About a quarter of the time, the high temperature is less than 64.7 °F (18.2 °C), and another quarter of the time, the high temperature is greater than and 70.0 °F (21.1 °C). About 95% of the time, the high temperature has been between 59.8 °F (15.4 °C) and 74.9 °F (23.9 °C).

Low Temperatures

On May 21 in this location the average low temperature is 52.6 °F (11.4 °C). The lowest recored low temperature was 42.1 °F (5.6 °C) in 1981 and the lowest recored low temperature was 62.6 °F (17.0 °C) in 1997. The low temperature is usually* between 49.9 °F (10.0 °C) and 55.2 °F (12.9 °C). About a quarter of the time, the low temperature is less than 49.9 °F (10.0 °C), and another quarter of the time, the low temperature is greater than and 55.2 °F (12.9 °C). About 95% of the time, the low temperature has been between 44.9 °F (7.2 °C) and 60.3 °F (15.7 °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: