December 21 - custom location - Weather History and Averages

High Temperatures

On December 21 in this location the average high temperature is 65.1 °F (18.4 °C). The lowest recored high temperature was 45.0 °F (7.2 °C) in 1968 and the highest recored high temperature was 86.0 °F (30.0 °C) in 2020. The high temperature is usually* between 59.7 °F (15.4 °C) and 70.5 °F (21.4 °C). About a quarter of the time, the high temperature is less than 59.7 °F (15.4 °C), and another quarter of the time, the high temperature is greater than and 70.5 °F (21.4 °C). About 95% of the time, the high temperature has been between 49.4 °F (9.6 °C) and 80.9 °F (27.1 °C).

Low Temperatures

On December 21 in this location the average low temperature is 40.1 °F (4.5 °C). The lowest recored low temperature was 17.1 °F (-8.3 °C) in 1968 and the lowest recored low temperature was 55.9 °F (13.3 °C) in 1980. The low temperature is usually* between 36.0 °F (2.2 °C) and 44.2 °F (6.8 °C). About a quarter of the time, the low temperature is less than 36.0 °F (2.2 °C), and another quarter of the time, the low temperature is greater than and 44.2 °F (6.8 °C). About 95% of the time, the low temperature has been between 28.2 °F (-2.1 °C) and 52.0 °F (11.1 °C).

Frost

On December 21 in this location expect the temperatures to drop below freezing for a risk of frost about 9.1% 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: