May 20 - custom location - Weather History and Averages

High Temperatures

On May 20 in this location the average high temperature is 72.9 °F (22.7 °C). The lowest recored high temperature was 56.8 °F (13.8 °C) in 1991 and the highest recored high temperature was 97.0 °F (36.1 °C) in 2017. The high temperature is usually* between 69.1 °F (20.6 °C) and 76.8 °F (24.9 °C). About a quarter of the time, the high temperature is less than 69.1 °F (20.6 °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 61.7 °F (16.5 °C) and 84.1 °F (28.9 °C).

Low Temperatures

On May 20 in this location the average low temperature is 57.2 °F (14.0 °C). The lowest recored low temperature was 42.1 °F (5.6 °C) in 1974 and the lowest recored low temperature was 71.6 °F (22.0 °C) in 2025. The low temperature is usually* between 54.5 °F (12.5 °C) and 59.9 °F (15.5 °C). About a quarter of the time, the low temperature is less than 54.5 °F (12.5 °C), and another quarter of the time, the low temperature is greater than and 59.9 °F (15.5 °C). About 95% of the time, the low temperature has been between 49.5 °F (9.7 °C) and 65.0 °F (18.3 °C).

Frost

On May 20 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: