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Re: Frost?

Square Foot Gardening List - http://www.flinet.com/~gallus/sqft.html

----- Original Message -----
From: Davis, Jeannette <JDavis@Actium.com>
Sent: Monday, September 20, 1999 10:15 AM
Subject: Frost?
> How can you predict when there will be a frost?  ...
> ...
> Jeannette
> SW PA, Zone 6
>
Good question.  I don't believe anybody really can be certain.   I don't
believe it is really possible to predict accurately.  In Phoenix, we have
light frosts (30s) fairly often during the winter months and it is often
possible to overwinter tomatoes and peppers with only occasional light
protection.  Frost can occur above 32 deg depending on humidity and
pressure.  We often get light white dustings on the rooftops at 38 deg.  The
local weather forecasts are usually inaccurate for our "colder valley
location".  Frosts are less likely when there is a breeze or the sky is
overcast.  But if there is any doubt, we protect frost-tender plants.  -Olin


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