December 21 - custom location - Weather History and Averages

High Temperatures

On December 21 in this location the average high temperature is 66.1 °F (19.0 °C). The lowest recored high temperature was 45.0 °F (7.2 °C) in 1968 and the highest recored high temperature was 87.1 °F (30.6 °C) in 2020. The high temperature is usually* between 60.9 °F (16.1 °C) and 71.4 °F (21.9 °C). About a quarter of the time, the high temperature is less than 60.9 °F (16.1 °C), and another quarter of the time, the high temperature is greater than and 71.4 °F (21.9 °C). About 95% of the time, the high temperature has been between 51.0 °F (10.5 °C) and 81.3 °F (27.4 °C).

Low Temperatures

On December 21 in this location the average low temperature is 40.6 °F (4.8 °C). The lowest recored low temperature was 17.1 °F (-8.3 °C) in 1968 and the lowest recored low temperature was 57.2 °F (14.0 °C) in 2020. The low temperature is usually* between 36.7 °F (2.6 °C) and 44.6 °F (7.0 °C). About a quarter of the time, the low temperature is less than 36.7 °F (2.6 °C), and another quarter of the time, the low temperature is greater than and 44.6 °F (7.0 °C). About 95% of the time, the low temperature has been between 29.1 °F (-1.6 °C) and 52.2 °F (11.2 °C).

Frost

On December 21 in this location expect the temperatures to drop below freezing for a risk of frost about 7.1% 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: