December 21 - custom location - Weather History and Averages

High Temperatures

On December 21 in this location the average high temperature is 36.0 °F (2.2 °C). The lowest recored high temperature was 7.2 °F (-13.8 °C) in 1989 and the highest recored high temperature was 60.1 °F (15.6 °C) in 2011. The high temperature is usually* between 28.9 °F (-1.7 °C) and 43.0 °F (6.1 °C). About a quarter of the time, the high temperature is less than 28.9 °F (-1.7 °C), and another quarter of the time, the high temperature is greater than and 43.0 °F (6.1 °C). About 95% of the time, the high temperature has been between 15.5 °F (-9.2 °C) and 56.4 °F (13.6 °C).

Low Temperatures

On December 21 in this location the average low temperature is 22.4 °F (-5.4 °C). The lowest recored low temperature was -2.9 °F (-19.4 °C) in 1989 and the lowest recored low temperature was 48.9 °F (9.4 °C) in 1949. The low temperature is usually* between 14.7 °F (-9.6 °C) and 30.0 °F (-1.1 °C). About a quarter of the time, the low temperature is less than 14.7 °F (-9.6 °C), and another quarter of the time, the low temperature is greater than and 30.0 °F (-1.1 °C). About 95% of the time, the low temperature has been between 0.2 °F (-17.7 °C) and 44.5 °F (7.0 °C).

Frost

On December 21 in this location expect the temperatures to drop below freezing for a risk of frost about 80.3% 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: