December 21 - custom location - Weather History and Averages

High Temperatures

On December 21 in this location the average high temperature is 66.7 °F (19.3 °C). The lowest recored high temperature was 48.9 °F (9.4 °C) in 1970 and the highest recored high temperature was 87.1 °F (30.6 °C) in 2020. The high temperature is usually* between 61.5 °F (16.4 °C) and 71.9 °F (22.2 °C). About a quarter of the time, the high temperature is less than 61.5 °F (16.4 °C), and another quarter of the time, the high temperature is greater than and 71.9 °F (22.2 °C). About 95% of the time, the high temperature has been between 51.5 °F (10.8 °C) and 81.8 °F (27.7 °C).

Low Temperatures

On December 21 in this location the average low temperature is 41.7 °F (5.4 °C). The lowest recored low temperature was 25.0 °F (-3.9 °C) in 1968 and the lowest recored low temperature was 57.2 °F (14.0 °C) in 2020. The low temperature is usually* between 37.5 °F (3.1 °C) and 45.9 °F (7.7 °C). About a quarter of the time, the low temperature is less than 37.5 °F (3.1 °C), and another quarter of the time, the low temperature is greater than and 45.9 °F (7.7 °C). About 95% of the time, the low temperature has been between 29.6 °F (-1.3 °C) and 53.9 °F (12.2 °C).

Frost

On December 21 in this location expect the temperatures to drop below freezing for a risk of frost about 5.8% 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: