December 21 - custom location - Weather History and Averages

High Temperatures

On December 21 in this location the average high temperature is 34.7 °F (1.5 °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 41.8 °F (5.4 °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 41.8 °F (5.4 °C). About 95% of the time, the high temperature has been between 14.1 °F (-9.9 °C) and 55.2 °F (12.9 °C).

Low Temperatures

On December 21 in this location the average low temperature is 21.3 °F (-5.9 °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 13.2 °F (-10.4 °C) and 29.4 °F (-1.4 °C). About a quarter of the time, the low temperature is less than 13.2 °F (-10.4 °C), and another quarter of the time, the low temperature is greater than and 29.4 °F (-1.4 °C). About 95% of the time, the low temperature has been between -2.2 °F (-19.0 °C) and 44.8 °F (7.1 °C).

Frost

On December 21 in this location expect the temperatures to drop below freezing for a risk of frost about 81.4% 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: