December 21 - custom location - Weather History and Averages

High Temperatures

On December 21 in this location the average high temperature is 66.0 °F (18.9 °C). The lowest recored high temperature was 50.0 °F (10.0 °C) in 1990 and the highest recored high temperature was 84.9 °F (29.4 °C) in 2020. The high temperature is usually* between 61.8 °F (16.5 °C) and 70.2 °F (21.2 °C). About a quarter of the time, the high temperature is less than 61.8 °F (16.5 °C), and another quarter of the time, the high temperature is greater than and 70.2 °F (21.2 °C). About 95% of the time, the high temperature has been between 53.8 °F (12.1 °C) and 78.1 °F (25.6 °C).

Low Temperatures

On December 21 in this location the average low temperature is 46.7 °F (8.2 °C). The lowest recored low temperature was 28.0 °F (-2.2 °C) in 1949 and the lowest recored low temperature was 64.4 °F (18.0 °C) in 1999. The low temperature is usually* between 43.4 °F (6.3 °C) and 50.0 °F (10.0 °C). About a quarter of the time, the low temperature is less than 43.4 °F (6.3 °C), and another quarter of the time, the low temperature is greater than and 50.0 °F (10.0 °C). About 95% of the time, the low temperature has been between 37.0 °F (2.8 °C) and 56.3 °F (13.5 °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: