[NotInPortland]

A czy ktoś wie dlaczego maksimum rocznych temperatur przypada na przełom lipca/sierpnia a odpowiednio minimum stycznia/lutego, pomimo iż słońce szczytuje 21 czerwca, a dołuje 21 grudnia.

Skąd to miesięczne opóźnienie?

Earth's seasonal lag is largely caused by the presence of large amounts of water, which has a high latent heat of freezing and of condensation. Its length varies between different climates, with extremes ranging from as little as 15–20 days (for polar regions in summer) to as much as 2½ months (for low-latitude ocean areas). Interestingly, in many locations, it is not "seasonally symmetric", that is, the time between the winter solstice and coldest time is not the same as between the summer solstice and hottest time. In low and middle latitudes, the summer lag is longer, while in polar areas the winter lag is longer. In mid-latitude continental climates, it is approximately 20–25 days in winter and 25–35 days in summer.

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