December 21 - custom location - Weather History and Averages

High Temperatures

On December 21 in this location the average high temperature is 36.4 °F (2.4 °C). The lowest recored high temperature was 10.0 °F (-12.2 °C) in 1989 and the highest recored high temperature was 60.1 °F (15.6 °C) in 2011. The high temperature is usually* between 29.1 °F (-1.6 °C) and 43.7 °F (6.5 °C). About a quarter of the time, the high temperature is less than 29.1 °F (-1.6 °C), and another quarter of the time, the high temperature is greater than and 43.7 °F (6.5 °C). About 95% of the time, the high temperature has been between 15.2 °F (-9.3 °C) and 57.5 °F (14.2 °C).

Low Temperatures

On December 21 in this location the average low temperature is 21.8 °F (-5.7 °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 14.1 °F (-9.9 °C) and 29.5 °F (-1.4 °C). About a quarter of the time, the low temperature is less than 14.1 °F (-9.9 °C), and another quarter of the time, the low temperature is greater than and 29.5 °F (-1.4 °C). About 95% of the time, the low temperature has been between -0.6 °F (-18.1 °C) and 44.1 °F (6.7 °C).

Frost

On December 21 in this location expect the temperatures to drop below freezing for a risk of frost about 81.5% 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: