May 18 - custom location - Weather History and Averages

High Temperatures

On May 18 in this location the average high temperature is 70.7 °F (21.5 °C). The lowest recored high temperature was 48.2 °F (9.0 °C) in 2002 and the highest recored high temperature was 91.9 °F (33.3 °C) in 1977. The high temperature is usually* between 64.3 °F (17.9 °C) and 77.1 °F (25.1 °C). About a quarter of the time, the high temperature is less than 64.3 °F (17.9 °C), and another quarter of the time, the high temperature is greater than and 77.1 °F (25.1 °C). About 95% of the time, the high temperature has been between 52.0 °F (11.1 °C) and 89.4 °F (31.9 °C).

Low Temperatures

On May 18 in this location the average low temperature is 52.3 °F (11.3 °C). The lowest recored low temperature was 32.9 °F (0.5 °C) in 2023 and the lowest recored low temperature was 74.8 °F (23.8 °C) in 2017. The low temperature is usually* between 47.5 °F (8.6 °C) and 57.1 °F (13.9 °C). About a quarter of the time, the low temperature is less than 47.5 °F (8.6 °C), and another quarter of the time, the low temperature is greater than and 57.1 °F (13.9 °C). About 95% of the time, the low temperature has been between 38.4 °F (3.5 °C) and 66.2 °F (19.0 °C).

Frost

On May 18 in this location expect the temperatures to drop below freezing for a risk of frost about 0.2% 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: