September 18 - custom location - Weather History and Averages

High Temperatures

On September 18 in this location the average high temperature is 73.9 °F (23.3 °C). The lowest recored high temperature was 59.9 °F (15.5 °C) in 1981 and the highest recored high temperature was 90.7 °F (32.6 °C) in 2018. The high temperature is usually* between 69.1 °F (20.6 °C) and 78.7 °F (26.0 °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 78.7 °F (26.0 °C). About 95% of the time, the high temperature has been between 59.9 °F (15.5 °C) and 87.9 °F (31.1 °C).

Low Temperatures

On September 18 in this location the average low temperature is 56.9 °F (13.9 °C). The lowest recored low temperature was 39.2 °F (4.0 °C) in 1999 and the lowest recored low temperature was 72.0 °F (22.2 °C) in 1978. The low temperature is usually* between 52.0 °F (11.1 °C) and 61.8 °F (16.6 °C). About a quarter of the time, the low temperature is less than 52.0 °F (11.1 °C), and another quarter of the time, the low temperature is greater than and 61.8 °F (16.6 °C). About 95% of the time, the low temperature has been between 42.7 °F (6.0 °C) and 71.1 °F (21.7 °C).

Frost

On September 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: