Rainfall is distributed fairly evenly throughout the year. Most summer rainfall occurs during thunderstorms and an occasional tropical storm or hurricane. Humid subtropical climates lie on the southeast side of continents, roughly between 25 degrees and 40 degrees latitude. Humid oceanic climates are found only on the western sides of continents where prevailing winds blow from sea to land. The moderating influence of the ocean reduces the seasonal temperature contrast so that winters are cool to mild and summers are warm.
Moderate precipitation occurs throughout the year.
Low clouds, fog, and drizzle are common. Thunderstorms, cold waves, heat waves, and droughts are rare. Humid continental climates feature mild to warm summers and cold winters. The temperature difference between the warmest and coldest months of the year in-creases inland. Precipitation is distributed fairly evenly throughout the year, though many locations well inland have more precipitation in the summer.