How Does It Snow When It’s Above Freezing?

Snow is unusual in Seattle, where the staff for MSJ live, because it so rarely gets below freezing here. Sometimes, though, we see snow in the forecast (and actual snowflakes) when the temperature is above freezing. Curious as to how this happens, we looked it up!

The trick has to do with the dryness of the air. The drier (less humid) the air, the more possible it is for snow to survive at above-freezing temperatures. This article explains the science and the equation behind determining if precipitation will fall as snow or rain!

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