September 18 - custom location - Weather History and Averages

High Temperatures

On September 18 in this location the average high temperature is 74.9 °F (23.9 °C). The lowest recored high temperature was 57.9 °F (14.4 °C) in 1981 and the highest recored high temperature was 89.1 °F (31.7 °C) in 2007. The high temperature is usually* between 69.5 °F (20.8 °C) and 80.4 °F (26.9 °C). About a quarter of the time, the high temperature is less than 69.5 °F (20.8 °C), and another quarter of the time, the high temperature is greater than and 80.4 °F (26.9 °C). About 95% of the time, the high temperature has been between 59.0 °F (15.0 °C) and 90.9 °F (32.7 °C).

Low Temperatures

On September 18 in this location the average low temperature is 55.4 °F (13.0 °C). The lowest recored low temperature was 39.2 °F (4.0 °C) in 2009 and the lowest recored low temperature was 74.8 °F (23.8 °C) in 1988. The low temperature is usually* between 50.5 °F (10.3 °C) and 60.3 °F (15.7 °C). About a quarter of the time, the low temperature is less than 50.5 °F (10.3 °C), and another quarter of the time, the low temperature is greater than and 60.3 °F (15.7 °C). About 95% of the time, the low temperature has been between 41.2 °F (5.1 °C) and 69.6 °F (20.9 °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: