December 21 - custom location - Weather History and Averages

High Temperatures

On December 21 in this location the average high temperature is 35.7 °F (2.0 °C). The lowest recored high temperature was 8.1 °F (-13.3 °C) in 1989 and the highest recored high temperature was 60.1 °F (15.6 °C) in 1967. The high temperature is usually* between 30.6 °F (-0.8 °C) and 40.7 °F (4.8 °C). About a quarter of the time, the high temperature is less than 30.6 °F (-0.8 °C), and another quarter of the time, the high temperature is greater than and 40.7 °F (4.8 °C). About 95% of the time, the high temperature has been between 21.0 °F (-6.1 °C) and 50.3 °F (10.2 °C).

Low Temperatures

On December 21 in this location the average low temperature is 23.6 °F (-4.7 °C). The lowest recored low temperature was -0.9 °F (-18.3 °C) in 1989 and the lowest recored low temperature was 48.9 °F (9.4 °C) in 1949. The low temperature is usually* between 17.7 °F (-8.0 °C) and 29.5 °F (-1.4 °C). About a quarter of the time, the low temperature is less than 17.7 °F (-8.0 °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 6.4 °F (-14.2 °C) and 40.8 °F (4.9 °C).

Frost

On December 21 in this location expect the temperatures to drop below freezing for a risk of frost about 83.0% 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: