December 21 - custom location - Weather History and Averages

High Temperatures

On December 21 in this location the average high temperature is 65.9 °F (18.8 °C). The lowest recored high temperature was 46.9 °F (8.3 °C) in 1990 and the highest recored high temperature was 82.9 °F (28.3 °C) in 2005. The high temperature is usually* between 62.1 °F (16.7 °C) and 69.7 °F (21.0 °C). About a quarter of the time, the high temperature is less than 62.1 °F (16.7 °C), and another quarter of the time, the high temperature is greater than and 69.7 °F (21.0 °C). About 95% of the time, the high temperature has been between 54.7 °F (12.6 °C) and 77.1 °F (25.0 °C).

Low Temperatures

On December 21 in this location the average low temperature is 47.3 °F (8.5 °C). The lowest recored low temperature was 32.0 °F (0.0 °C) in 2012 and the lowest recored low temperature was 62.6 °F (17.0 °C) in 2016. The low temperature is usually* between 44.0 °F (6.7 °C) and 50.5 °F (10.3 °C). About a quarter of the time, the low temperature is less than 44.0 °F (6.7 °C), and another quarter of the time, the low temperature is greater than and 50.5 °F (10.3 °C). About 95% of the time, the low temperature has been between 37.7 °F (3.2 °C) and 56.8 °F (13.8 °C).

Frost

On December 21 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: