May 18 - custom location - Weather History and Averages

High Temperatures

On May 18 in this location the average high temperature is 79.6 °F (26.4 °C). The lowest recored high temperature was 41.0 °F (5.0 °C) in 2011 and the highest recored high temperature was 101.5 °F (38.6 °C) in 2008. The high temperature is usually* between 74.1 °F (23.4 °C) and 85.0 °F (29.5 °C). About a quarter of the time, the high temperature is less than 74.1 °F (23.4 °C), and another quarter of the time, the high temperature is greater than and 85.0 °F (29.5 °C). About 95% of the time, the high temperature has been between 63.7 °F (17.6 °C) and 95.5 °F (35.3 °C).

Low Temperatures

On May 18 in this location the average low temperature is 51.8 °F (11.0 °C). The lowest recored low temperature was 32.0 °F (0.0 °C) in 2025 and the lowest recored low temperature was 72.0 °F (22.2 °C) in 1978. The low temperature is usually* between 48.9 °F (9.4 °C) and 54.7 °F (12.6 °C). About a quarter of the time, the low temperature is less than 48.9 °F (9.4 °C), and another quarter of the time, the low temperature is greater than and 54.7 °F (12.6 °C). About 95% of the time, the low temperature has been between 43.3 °F (6.3 °C) and 60.3 °F (15.7 °C).

Frost

On May 18 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: