Where do sutropical weather on U.S begin and end? (hottest, averages)
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We discussed this in a different thread. I remember the suggestion to use "8 months with 24h monthly avg > 50F" line was a good one.
That's too broad isn't it?
Off topic since it isn't the US, but what about the Scilly Isles? They have 8 months with the overall mean temperature above 50F and are in Hardiness zone 10
Off topic since it isn't the US, but what about the Scilly Isles? They have 8 months with the overall mean temperature above 50F and are in Hardiness zone 10
I would regard them as subtropical.
To my way of thinking, the lower limits of subtropical are about how warm a place stays, not how hot it gets. That is what Trewartha's 8 month rule is getting at.
As to Eureka, it's temperature profile is temperate, not subtropical. The summers are far too cool. This is where Koeppen gets it right and Trewartha gets it wrong.
I think Eureka, CA is due west of the Southern boundary of the Cascades which starts at Lassen Peak.. would you consider Eureka subtropical?
No I don't think it is (I'd call it mild temperate). I'm basing this on Mediterranean climates being considered sub-tropical and marine west-coast climates being considered temperate. By that definition, the subtropical boundary in CA is actually farther north in the central valley then it is on the coast.
No I don't think it is (I'd call it mild temperate). I'm basing this on Mediterranean climates being considered sub-tropical and marine west-coast climates being considered temperate. By that definition, the subtropical boundary in CA is actually farther north in the central valley then it is on the coast.
Where would you put the boundary in the central valley and on the coast for subtropical?
Where would you put the boundary in the central valley and on the coast for subtropical?
I looked at a map of California and Eureka is a little north of Redding (at the top of the Sacramento Valley). I'd put the boundary at Cape Mendocino (just south of Eureka) on the coast and just north of Redding in the central valley. Those are about at the same latitude (as it turns out), at around 40.5 degrees north. I'm basing this entirely on the commonly accepted boundaries of the Mediterannen climate type in California. But that would imply that Eureka is so close to subtropical that it must have some transitional characteristics. One example I can see from looking at it's climate graph is that record highs from Nov. to Feb. are in the upper 70s to 80.
"I looked at a map of California and Eureka is a little north of Redding (at the top of the Sacramento Valley)"
I believe you're confusing "Eureka" with "Yreka" - two different California towns. It is YREKA that is "a little north of Redding". EUREKA is situated on the Redwood Coast and is not located in the Sacramento Valley.
to be honest I think all of you or confusing Sub Tropical with warm temperate. the 2 r not the same thing at all. according to hold ridge life zones system sub-tropical becomes warm temperate at a bio temperature of 18c which cuts off the subtropical zone at just south of Atlanta Georgia
to be honest I think all of you or confusing Sub Tropical with warm temperate. the 2 r not the same thing at all. according to hold ridge life zones system sub-tropical becomes warm temperate at a bio temperature of 18c which cuts off the subtropical zone at just south of Atlanta Georgia
Minimum gardening/plant zone 8a
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