October 21 - ST CLAIR SHORES - Weather History and Averages

Station: ST CLAIR SHORES (2007 to 2025)
Country: US
State: MI
Latitude: 42.467
Longitude: -82.867

High Temperatures

On October 21 in ST CLAIR SHORES the average high temperature is 62.0 °F (16.6 °C). The lowest recored high temperature was 48.0 °F (8.9 °C) in 2011 and the highest recored high temperature was 79.3 °F (26.3 °C) in 2007. The high temperature is usually^* between 56.1 °F (13.4 °C) and 67.8 °F (19.9 °C). About a quarter of the time, the high temperature is less than 56.1 °F (13.4 °C), and another quarter of the time, the high temperature is greater than and 67.8 °F (19.9 °C). About 95% of the time, the high temperature has been between 45.0 °F (7.2 °C) and 79.0 °F (26.1 °C).

Low Temperatures

On October 21 in ST CLAIR SHORES the average low temperature is 48.2 °F (9.0 °C). The lowest recored low temperature was 41.7 °F (5.4 °C) in 2010 and the lowest recored low temperature was 59.5 °F (15.3 °C) in 2007. The low temperature is usually^* between 43.7 °F (6.5 °C) and 52.7 °F (11.5 °C). About a quarter of the time, the low temperature is less than 43.7 °F (6.5 °C), and another quarter of the time, the low temperature is greater than and 52.7 °F (11.5 °C). About 95% of the time, the low temperature has been between 35.2 °F (1.8 °C) and 61.3 °F (16.3 °C).

Frost

On October 21 in ST CLAIR SHORES expect the temperatures to drop below freezing for a risk of frost about 0.7% 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:

ST CLAIR SHORES — Integrated Surface Dataset (ISD) station ID: 997996 — from year 2007 to 2024

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