On the new map, the midcoast of Maine and the southern portion of York County have moved from zone 5b to zone 6a. The rest of the area along the Maine coast, including parts between the new 6a zones, remains at 5b. The average annual extreme cold temperature in zone 5b is minus 10 to minus 15 degrees.29 Jan 2012
What zone is Portland Maine?
5b
What climate zone is Southern Maine?
1990 Hardiness Zone: Zone 1b: -15F to -10F
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Average First Frost: October 1 - 10
Average Last Frost: May 1 - 10
Koppen-Geiger Climate Zone: Dfb - Humid Continental Mild Summer, Wet All Year
Ecoregion: 59f - Gulf of Maine Coastal Lowland
What zone is Bangor Maine?
5a
What plant zone is coastal Maine?
Maine spans Plant Hardiness Zones 3-6. Each zone is based on the 30-year average of the single coldest temperature recorded each winter. Zone 3 is 10 degrees F colder than Zone 4, etc. In addition, each zone is split in half.
What zone is Kennebec County Maine?
Maine Location USDA Hardiness Zone(s)
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Houlton Zone 4a
Howland Zone 4b
Kennebec County Zone 4b, 5a, 5b
Kennebunk Zone 5b
Is zone 5a colder than 5b?
Each zone is further divided into subzones a and b, with the former being 5 degrees Fahrenheit cooler than the latter. Zone 5a Winter lows are between -20 and -15 degrees Fahrenheit, while zone 5b is -15 to -10 degrees Fahrenheit.
Where is growing zone 7 in the US?
Alabama Nevada
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Alaska New Jersey
Arizona New Mexico
Arkansas New York
California North Carolina
What is growing zone 5b?
Subset Zone Temperatures Each zone subset is separated by 5°F. Zone 5: The minimum average range of temperatures is -10° to -20°F. Zone 5a: This subzone has a minimum average temperature of -15° to -20° F. Zone 5b: This subzone has a minimum average temperature of -10° to -15°F.
How do you know what climate zone you are in?
Climate zones are determined by the coldest average winter temperature the geographical area typically experiences. You can see the coldest temps and their zones here, further divided into A (colder half of the zone) and B (warmer half of the zone).20 Sept 2016
What are the zones for planting in the United States?
USDA Hardiness Zones The USDA Hardiness Zone Map divides North America into 13 zones of 10°F each, ranging from -60°F (-51°C) to 70°F (21°C). If you are planning to buy a shrub, perennial or tree, you need to make sure that this new plant will tolerate year-round conditions in your area.