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I like the Trewartha definition of subtropical better.. which means places north of the Carolinas don't really qualify as subtropical on the East coast.
Temperate seems appropriate for somewhere like Philadelphia. It has hot summers for sure, but also cold winters. Warm temperate can encompass both hot summers and cold winters. Subtropical can't bridge the warm/cold divide without looking inappropriate.
Warm temperate (imho) can allow for a hot summer/cool winter, or a cool summer/mild winter equally well. Vegetation is important in my view. 90% of the local species around here, would die outright in some of these so called "subtropical" winters. Lack of killing cold is as significant as hot temps, for trying to give a one size fits all designation of subtropical.
Would you classify Vancouver and London as warm temperate or cold temperate? Where is the dividing line in your opinion?
I like the Trewartha definition of subtropical better.. which means places north of the Carolinas don't really qualify as subtropical on the East coast.
8 months or more with an average temperature of 10°C or higher for a subtropical climate.
Richmond, VA has 8 months with an avg above 50F, and almost 9 months. So it is north of the Carolinas. Norfolk has 9 months if you count March with an avg of 49.7F. The coastal areas of Oregon also have 9 months above 50F avg temps.
Richmond, VA has 8 months with an avg above 50F, and almost 9 months. So it is north of the Carolinas. Norfolk has 9 months if you count March with an avg of 49.7F. The coastal areas of Oregon also have 9 months above 50F avg temps.
I stand corrected I definitely know that Trewartha's subtropical line is considerably further south than Koppen's line for Cfa/Dfa though on the east coast.
On the west coast it gets more complicated with the cool summers of places like San Francisco and Eureka.
Would you classify Vancouver and London as warm temperate or cold temperate? Where is the dividing line in your opinion?
Cool temperate for London and Vancouver. Here (Motueka) is just within subtropical under the Trewartha definition, so that would seem like a relevant divide for a winter qualifying mark. London and Vancouver are very close to here in summer temps, but Motueka's colder half of the year has more in common with Rome or Nice. The colder season is a different experience to London/Vancouver imho, although that has as much to do with the weather as the temps.
I would consider Invercargill and Dunedin as cool temperate also. A informal system used here in Horticulture has NZ divided into warm, cool, and cold temperate. Here is cool because it is a "middle climate"
Quote:
Originally Posted by tom77falcons
Richmond, VA has 8 months with an avg above 50F, and almost 9 months. So it is north of the Carolinas. Norfolk has 9 months if you count March with an avg of 49.7F. The coastal areas of Oregon also have 9 months above 50F avg temps.
The Oregon coast seems to have 9 months over 50F, only from about North Bend south. Brookings is a place I pay attention to via gardening sites. It seems to be the cutoff point for a lot of marginal plant species. Brookings, Oregon - Wikipedia, the free encyclopedia
I stand corrected I definitely know that Trewartha's subtropical line is considerably further south than Koppen's line for Cfa/Dfa though on the east coast.
On the Trewartha climates maps the line sits close to the Virginia/North Carolina, Kentucky/Tennessee and Missouri/Arkansas borders. I guess the maps are trying to be simple, ignoring some of the outliers
That seems more reasonable than putting Orlando in the same zone as NYC. Northern Spain is pretty cool in summer.
And New York City is pretty warm in Winter. Comments like this highlight the pure silliness of this emotion-based climate zoning.
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I definitely know that Trewartha's subtropical line is considerably further south than Koppen's line for Cfa/Dfa though on the east coast. 