December 21 - custom location - Weather History and Averages

High Temperatures

On December 21 in this location the average high temperature is 56.1 °F (13.4 °C). The lowest recored high temperature was 35.6 °F (2.0 °C) in 2007 and the highest recored high temperature was 73.9 °F (23.3 °C) in 1994. The high temperature is usually* between 49.7 °F (9.8 °C) and 62.5 °F (16.9 °C). About a quarter of the time, the high temperature is less than 49.7 °F (9.8 °C), and another quarter of the time, the high temperature is greater than and 62.5 °F (16.9 °C). About 95% of the time, the high temperature has been between 37.4 °F (3.0 °C) and 74.7 °F (23.7 °C).

Low Temperatures

On December 21 in this location the average low temperature is 34.9 °F (1.6 °C). The lowest recored low temperature was 10.4 °F (-12.0 °C) in 2011 and the lowest recored low temperature was 55.9 °F (13.3 °C) in 1980. The low temperature is usually* between 27.6 °F (-2.4 °C) and 42.2 °F (5.7 °C). About a quarter of the time, the low temperature is less than 27.6 °F (-2.4 °C), and another quarter of the time, the low temperature is greater than and 42.2 °F (5.7 °C). About 95% of the time, the low temperature has been between 13.7 °F (-10.2 °C) and 56.1 °F (13.4 °C).

Frost

On December 21 in this location expect the temperatures to drop below freezing for a risk of frost about 39.4% 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: