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California's coastal regions, the Sierra Nevada foothills, and much of the Central Valley have a Mediterranean climate, with warmer, drier weather in summer and cooler, wetter weather in winter. The influence of the ocean generally moderates temperature extremes, creating warmer winters and substantially cooler summers in coastal areas.
The coast of California north of San Francisco contains the Northern California coastal forests (as defined by the WWF) and the southern section of the Coast Range ecoregion (as defined by the EPA). This ecoregion is dominated by redwood forest , containing the tallest and some of the oldest trees in the world.
The tropical wet forests of North America have an average year-round temperature between 68 and 78.8 °F (26.0 °C). Thus, frost does not occur under these conditions. [2] The temperatures remain fairly uniform throughout the year; therefore there is not a change of seasons. There is also no dry season, as all months experience precipitation.
Pacific temperate rainforests have been subject to ongoing large-scale industrial logging since the end of World War II, cutting over half of their total area. In California, only 4% of the redwoods have been protected. In Oregon and Washington, less than 10% of the original coastal rainforest area remains.
California comes in a close second with 13 ecoregions across four biomes in the same realm. By contrast, Rhode Island is the least biodiverse with just one ecoregion—the Northeastern coastal forests —encompassing the entire state.
The rainforests of the Azores (also known as cloud forests, due to the constant cloud coverage caused by orographic lift) are found in the more humid, montane areas that transition from the lower altitude laurissilva. They are generally found at altitudes ranging from 600 to 1,000 m (2,000 to 3,300 ft), and receive 2,000 to 6,000 mm (79 to 236 ...
In northern Florida, there is a weak winter secondary maximum while statewide the driest months of the year are during the spring. [17] During El Niño, Florida sees greater rainfall between November and March. [12] Due to the lack of the secondary maximum across the peninsula, a distinct dry season is seen in the averages from winter through ...
California is in the Nearctic realm. Ecoregions are listed by biome: [1] Temperate coniferous forests. Eastern Cascades forests (Eastern Cascades Slopes and Foothills)