December 21 - custom location - Weather History and Averages

High Temperatures

On December 21 in this location the average high temperature is 35.5 °F (1.9 °C). The lowest recored high temperature was 6.3 °F (-14.3 °C) in 1989 and the highest recored high temperature was 60.1 °F (15.6 °C) in 1967. The high temperature is usually* between 30.4 °F (-0.9 °C) and 40.5 °F (4.7 °C). About a quarter of the time, the high temperature is less than 30.4 °F (-0.9 °C), and another quarter of the time, the high temperature is greater than and 40.5 °F (4.7 °C). About 95% of the time, the high temperature has been between 20.7 °F (-6.3 °C) and 50.2 °F (10.1 °C).

Low Temperatures

On December 21 in this location the average low temperature is 23.3 °F (-4.9 °C). The lowest recored low temperature was -3.8 °F (-19.9 °C) in 1989 and the lowest recored low temperature was 48.9 °F (9.4 °C) in 1949. The low temperature is usually* between 17.3 °F (-8.2 °C) and 29.2 °F (-1.5 °C). About a quarter of the time, the low temperature is less than 17.3 °F (-8.2 °C), and another quarter of the time, the low temperature is greater than and 29.2 °F (-1.5 °C). About 95% of the time, the low temperature has been between 5.9 °F (-14.5 °C) and 40.6 °F (4.8 °C).

Frost

On December 21 in this location expect the temperatures to drop below freezing for a risk of frost about 83.8% 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: