December 18 - custom location - Weather History and Averages

High Temperatures

On December 18 in this location the average high temperature is 66.2 °F (19.0 °C). The lowest recored high temperature was 33.1 °F (0.6 °C) in 1984 and the highest recored high temperature was 90.0 °F (32.2 °C) in 2017. The high temperature is usually* between 61.0 °F (16.1 °C) and 71.5 °F (21.9 °C). About a quarter of the time, the high temperature is less than 61.0 °F (16.1 °C), and another quarter of the time, the high temperature is greater than and 71.5 °F (21.9 °C). About 95% of the time, the high temperature has been between 51.0 °F (10.6 °C) and 81.5 °F (27.5 °C).

Low Temperatures

On December 18 in this location the average low temperature is 46.2 °F (7.9 °C). The lowest recored low temperature was 21.2 °F (-6.0 °C) in 2006 and the lowest recored low temperature was 70.0 °F (21.1 °C) in 2024. The low temperature is usually* between 42.9 °F (6.1 °C) and 49.6 °F (9.8 °C). About a quarter of the time, the low temperature is less than 42.9 °F (6.1 °C), and another quarter of the time, the low temperature is greater than and 49.6 °F (9.8 °C). About 95% of the time, the low temperature has been between 36.5 °F (2.5 °C) and 56.0 °F (13.3 °C).

Frost

On December 18 in this location expect the temperatures to drop below freezing for a risk of frost about 0.2% 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: