December 18 - custom location - Weather History and Averages

High Temperatures

On December 18 in this location the average high temperature is 66.1 °F (18.9 °C). The lowest recored high temperature was 33.1 °F (0.6 °C) in 1984 and the highest recored high temperature was 87.1 °F (30.6 °C) in 2024. The high temperature is usually* between 60.0 °F (15.5 °C) and 72.2 °F (22.4 °C). About a quarter of the time, the high temperature is less than 60.0 °F (15.5 °C), and another quarter of the time, the high temperature is greater than and 72.2 °F (22.4 °C). About 95% of the time, the high temperature has been between 48.3 °F (9.0 °C) and 83.9 °F (28.8 °C).

Low Temperatures

On December 18 in this location the average low temperature is 42.6 °F (5.9 °C). The lowest recored low temperature was 21.2 °F (-6.0 °C) in 2006 and the lowest recored low temperature was 63.0 °F (17.2 °C) in 1995. The low temperature is usually* between 38.5 °F (3.6 °C) and 46.8 °F (8.2 °C). About a quarter of the time, the low temperature is less than 38.5 °F (3.6 °C), and another quarter of the time, the low temperature is greater than and 46.8 °F (8.2 °C). About 95% of the time, the low temperature has been between 30.7 °F (-0.7 °C) and 54.6 °F (12.6 °C).

Frost

On December 18 in this location expect the temperatures to drop below freezing for a risk of frost about 4.0% 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: