December 21 - custom location - Weather History and Averages

High Temperatures

On December 21 in this location the average high temperature is 66.6 °F (19.2 °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 61.8 °F (16.5 °C) and 71.4 °F (21.9 °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 71.4 °F (21.9 °C). About 95% of the time, the high temperature has been between 52.6 °F (11.5 °C) and 80.5 °F (27.0 °C).

Low Temperatures

On December 21 in this location the average low temperature is 42.6 °F (5.9 °C). The lowest recored low temperature was 17.1 °F (-8.3 °C) in 1968 and the lowest recored low temperature was 60.1 °F (15.6 °C) in 1960. The low temperature is usually* between 38.8 °F (3.8 °C) and 46.3 °F (8.0 °C). About a quarter of the time, the low temperature is less than 38.8 °F (3.8 °C), and another quarter of the time, the low temperature is greater than and 46.3 °F (8.0 °C). About 95% of the time, the low temperature has been between 31.6 °F (-0.2 °C) and 53.5 °F (12.0 °C).

Frost

On December 21 in this location expect the temperatures to drop below freezing for a risk of frost about 3.0% 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: