December 21 - custom location - Weather History and Averages

High Temperatures

On December 21 in this location the average high temperature is 66.1 °F (18.9 °C). The lowest recored high temperature was 55.0 °F (12.8 °C) in 1982 and the highest recored high temperature was 84.9 °F (29.4 °C) in 2020. The high temperature is usually* between 61.9 °F (16.6 °C) and 70.3 °F (21.3 °C). About a quarter of the time, the high temperature is less than 61.9 °F (16.6 °C), and another quarter of the time, the high temperature is greater than and 70.3 °F (21.3 °C). About 95% of the time, the high temperature has been between 53.8 °F (12.1 °C) and 78.4 °F (25.8 °C).

Low Temperatures

On December 21 in this location the average low temperature is 42.4 °F (5.8 °C). The lowest recored low temperature was 25.0 °F (-3.9 °C) in 1968 and the lowest recored low temperature was 62.1 °F (16.7 °C) in 1976. The low temperature is usually* between 37.7 °F (3.2 °C) and 47.0 °F (8.3 °C). About a quarter of the time, the low temperature is less than 37.7 °F (3.2 °C), and another quarter of the time, the low temperature is greater than and 47.0 °F (8.3 °C). About 95% of the time, the low temperature has been between 28.9 °F (-1.7 °C) and 55.8 °F (13.2 °C).

Frost

On December 21 in this location expect the temperatures to drop below freezing for a risk of frost about 6.5% 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: