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 7.2 °F (-13.8 °C) in 1989 and the highest recored high temperature was 58.8 °F (14.9 °C) in 1978. The high temperature is usually* between 29.0 °F (-1.6 °C) and 42.0 °F (5.5 °C). About a quarter of the time, the high temperature is less than 29.0 °F (-1.6 °C), and another quarter of the time, the high temperature is greater than and 42.0 °F (5.5 °C). About 95% of the time, the high temperature has been between 16.7 °F (-8.5 °C) and 54.3 °F (12.4 °C).

Low Temperatures

On December 21 in this location the average low temperature is 24.9 °F (-3.9 °C). The lowest recored low temperature was -0.9 °F (-18.3 °C) in 1989 and the lowest recored low temperature was 42.1 °F (5.6 °C) in 1949. The low temperature is usually* between 18.0 °F (-7.8 °C) and 31.9 °F (-0.1 °C). About a quarter of the time, the low temperature is less than 18.0 °F (-7.8 °C), and another quarter of the time, the low temperature is greater than and 31.9 °F (-0.1 °C). About 95% of the time, the low temperature has been between 4.8 °F (-15.1 °C) and 45.0 °F (7.2 °C).

Frost

On December 21 in this location expect the temperatures to drop below freezing for a risk of frost about 75.5% 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: