September 18 - custom location - Weather History and Averages

High Temperatures

On September 18 in this location the average high temperature is 75.7 °F (24.3 °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 70.8 °F (21.6 °C) and 80.7 °F (27.1 °C). About a quarter of the time, the high temperature is less than 70.8 °F (21.6 °C), and another quarter of the time, the high temperature is greater than and 80.7 °F (27.1 °C). About 95% of the time, the high temperature has been between 61.4 °F (16.3 °C) and 90.1 °F (32.3 °C).

Low Temperatures

On September 18 in this location the average low temperature is 56.0 °F (13.4 °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 50.9 °F (10.5 °C) and 61.1 °F (16.2 °C). About a quarter of the time, the low temperature is less than 50.9 °F (10.5 °C), and another quarter of the time, the low temperature is greater than and 61.1 °F (16.2 °C). About 95% of the time, the low temperature has been between 41.2 °F (5.1 °C) and 70.8 °F (21.6 °C).

Frost

On September 18 in this location expect the temperatures to drop below freezing for a risk of frost about 0.1% 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: