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Old 07-21-2014, 11:49 PM
Location: Duluth, Minnesota, USA
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Originally Posted by CurlyFries View Post
Lake Superior is not usually a safe lake to swim in.
I love to swim in Lake Superior. It's most invigorating in August and September when the surf's up and air temperatures are around 70 (but be careful and aware of rip currents).
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Old 07-22-2014, 07:31 AM
Location: Minneapolis (St. Louis Park)
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Originally Posted by mshultz View Post
If you want to swim in one of the Great Lakes, Lake Erie is the shallowest and therefore the warmest. However, northeast Ohio is generally too cold for outdoor swimming. The average July high is only 82 degrees. One summer, July averaged 78 degrees, which was really pleasant.
I LIVE in NE Ohio and we swim all summer long, in pools or lakes. This year it took the lake longer to warm up but two years ago when the July average high temp was 87 or 88 the water was balmy and for many days it was TOO hot to be outside.

As a rule of thumb, I tend to want to swim outside when it's 85 or above, whether it's the ambient air temperature or the heat index. There are exceptions like in late June/early July when the angle of the sun is so high in the sky that 80 degrees with the sun hitting you feels like 95 degrees (b/c temperatures are measured in the shade, not in the sun).

Today it's forecasted to be close to 90 degrees with humidity, so if I wasn't working I'd want to be in a lake somewhere, if outside at all.
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Old 07-22-2014, 08:44 AM
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Probably the PNW. There is a difference between swimming and jumping in and out quick.
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