May 18 - custom location - Weather History and Averages

High Temperatures

On May 18 in this location the average high temperature is 67.1 °F (19.5 °C). The lowest recored high temperature was 42.1 °F (5.6 °C) in 1969 and the highest recored high temperature was 89.1 °F (31.7 °C) in 1996. The high temperature is usually* between 59.7 °F (15.4 °C) and 74.5 °F (23.6 °C). About a quarter of the time, the high temperature is less than 59.7 °F (15.4 °C), and another quarter of the time, the high temperature is greater than and 74.5 °F (23.6 °C). About 95% of the time, the high temperature has been between 45.6 °F (7.5 °C) and 88.7 °F (31.5 °C).

Low Temperatures

On May 18 in this location the average low temperature is 47.2 °F (8.4 °C). The lowest recored low temperature was 31.5 °F (-0.3 °C) in 1983 and the lowest recored low temperature was 71.6 °F (22.0 °C) in 1998. The low temperature is usually* between 42.3 °F (5.7 °C) and 52.0 °F (11.1 °C). About a quarter of the time, the low temperature is less than 42.3 °F (5.7 °C), and another quarter of the time, the low temperature is greater than and 52.0 °F (11.1 °C). About 95% of the time, the low temperature has been between 33.1 °F (0.6 °C) and 61.2 °F (16.2 °C).

Frost

On May 18 in this location expect the temperatures to drop below freezing for a risk of frost about 1.8% 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: