April 21 - custom location - Weather History and Averages

High Temperatures

On April 21 in this location the average high temperature is 63.5 °F (17.5 °C). The lowest recored high temperature was 40.3 °F (4.6 °C) in 2021 and the highest recored high temperature was 84.9 °F (29.4 °C) in 1987. The high temperature is usually* between 56.5 °F (13.6 °C) and 70.6 °F (21.4 °C). About a quarter of the time, the high temperature is less than 56.5 °F (13.6 °C), and another quarter of the time, the high temperature is greater than and 70.6 °F (21.4 °C). About 95% of the time, the high temperature has been between 43.1 °F (6.2 °C) and 84.0 °F (28.9 °C).

Low Temperatures

On April 21 in this location the average low temperature is 42.1 °F (5.6 °C). The lowest recored low temperature was 25.0 °F (-3.9 °C) in 2013 and the lowest recored low temperature was 65.8 °F (18.8 °C) in 1977. The low temperature is usually* between 36.2 °F (2.3 °C) and 48.0 °F (8.9 °C). About a quarter of the time, the low temperature is less than 36.2 °F (2.3 °C), and another quarter of the time, the low temperature is greater than and 48.0 °F (8.9 °C). About 95% of the time, the low temperature has been between 25.0 °F (-3.9 °C) and 59.2 °F (15.1 °C).

Frost

On April 21 in this location expect the temperatures to drop below freezing for a risk of frost about 12.3% 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: