October 21 - LAKE ST CLAIR - Weather History and Averages

Station: LAKE ST CLAIR (2004 to 2017)
Country: CA
Latitude: 42.43
Longitude: -82.68

High Temperatures

On October 21 in LAKE ST CLAIR the average high temperature is 57.1 °F (13.9 °C). The lowest recored high temperature was 53.4 °F (11.9 °C) in 2006 and the highest recored high temperature was 70.0 °F (21.1 °C) in 2007. The high temperature is usually^* between 53.3 °F (11.8 °C) and 60.9 °F (16.0 °C). About a quarter of the time, the high temperature is less than 53.3 °F (11.8 °C), and another quarter of the time, the high temperature is greater than and 60.9 °F (16.0 °C). About 95% of the time, the high temperature has been between 46.1 °F (7.9 °C) and 68.0 °F (20.0 °C).

Low Temperatures

On October 21 in LAKE ST CLAIR the average low temperature is 49.8 °F (9.9 °C). The lowest recored low temperature was 45.3 °F (7.4 °C) in 2008 and the lowest recored low temperature was 60.4 °F (15.8 °C) in 2007. The low temperature is usually^* between 46.1 °F (7.9 °C) and 53.6 °F (12.0 °C). About a quarter of the time, the low temperature is less than 46.1 °F (7.9 °C), and another quarter of the time, the low temperature is greater than and 53.6 °F (12.0 °C). About 95% of the time, the low temperature has been between 39.1 °F (3.9 °C) and 60.6 °F (15.9 °C).

Frost

On October 21 in LAKE ST CLAIR expect the temperatures to drop below freezing for a risk of frost about 0.1% 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:

LAKE ST CLAIR — Integrated Surface Dataset (ISD) station ID: 997219 — from year 2004 to 2017

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