December 21 - custom location - Weather History and Averages

High Temperatures

On December 21 in this location the average high temperature is 34.5 °F (1.4 °C). The lowest recored high temperature was 3.2 °F (-16.0 °C) in 1989 and the highest recored high temperature was 62.1 °F (16.7 °C) in 1967. The high temperature is usually* between 27.6 °F (-2.4 °C) and 41.4 °F (5.2 °C). About a quarter of the time, the high temperature is less than 27.6 °F (-2.4 °C), and another quarter of the time, the high temperature is greater than and 41.4 °F (5.2 °C). About 95% of the time, the high temperature has been between 14.6 °F (-9.7 °C) and 54.5 °F (12.5 °C).

Low Temperatures

On December 21 in this location the average low temperature is 23.2 °F (-4.9 °C). The lowest recored low temperature was -13.9 °F (-25.5 °C) in 1989 and the lowest recored low temperature was 42.8 °F (6.0 °C) in 2015. The low temperature is usually* between 15.3 °F (-9.3 °C) and 31.1 °F (-0.5 °C). About a quarter of the time, the low temperature is less than 15.3 °F (-9.3 °C), and another quarter of the time, the low temperature is greater than and 31.1 °F (-0.5 °C). About 95% of the time, the low temperature has been between 0.2 °F (-17.7 °C) and 46.2 °F (7.9 °C).

Frost

On December 21 in this location expect the temperatures to drop below freezing for a risk of frost about 77.4% 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: