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 6.3 °F (-14.3 °C) in 1989 and the highest recored high temperature was 51.1 °F (10.6 °C) in 1988. The high temperature is usually* between 28.3 °F (-2.1 °C) and 41.1 °F (5.1 °C). About a quarter of the time, the high temperature is less than 28.3 °F (-2.1 °C), and another quarter of the time, the high temperature is greater than and 41.1 °F (5.1 °C). About 95% of the time, the high temperature has been between 16.0 °F (-8.9 °C) and 53.4 °F (11.9 °C).

Low Temperatures

On December 21 in this location the average low temperature is 21.9 °F (-5.6 °C). The lowest recored low temperature was -3.8 °F (-19.9 °C) in 1989 and the lowest recored low temperature was 39.7 °F (4.3 °C) in 2015. The low temperature is usually* between 15.0 °F (-9.4 °C) and 28.7 °F (-1.8 °C). About a quarter of the time, the low temperature is less than 15.0 °F (-9.4 °C), and another quarter of the time, the low temperature is greater than and 28.7 °F (-1.8 °C). About 95% of the time, the low temperature has been between 2.0 °F (-16.7 °C) and 41.8 °F (5.4 °C).

Frost

On December 21 in this location expect the temperatures to drop below freezing for a risk of frost about 84.0% 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: