December 21 - custom location - Weather History and Averages

High Temperatures

On December 21 in this location the average high temperature is 35.2 °F (1.8 °C). The lowest recored high temperature was 3.2 °F (-16.0 °C) in 1989 and the highest recored high temperature was 61.3 °F (16.3 °C) in 1967. The high temperature is usually* between 28.2 °F (-2.1 °C) and 42.1 °F (5.6 °C). About a quarter of the time, the high temperature is less than 28.2 °F (-2.1 °C), and another quarter of the time, the high temperature is greater than and 42.1 °F (5.6 °C). About 95% of the time, the high temperature has been between 14.9 °F (-9.5 °C) and 55.4 °F (13.0 °C).

Low Temperatures

On December 21 in this location the average low temperature is 22.1 °F (-5.5 °C). The lowest recored low temperature was -13.9 °F (-25.5 °C) in 1989 and the lowest recored low temperature was 44.1 °F (6.7 °C) in 1990. The low temperature is usually* between 14.1 °F (-10.0 °C) and 30.1 °F (-1.1 °C). About a quarter of the time, the low temperature is less than 14.1 °F (-10.0 °C), and another quarter of the time, the low temperature is greater than and 30.1 °F (-1.1 °C). About 95% of the time, the low temperature has been between -1.1 °F (-18.4 °C) and 45.3 °F (7.4 °C).

Frost

On December 21 in this location expect the temperatures to drop below freezing for a risk of frost about 79.9% 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: