The length of daylight in the Northern Hemisphere is greater than the length of darkness in summer. The farther north you go, the longer the period of daylight. On the summer solstice on the Arctic circle the length of daylight is 24 hours!
Land and water – areas by large bodies of water experience more moderate changes in temperature throughout the year. In addition, the range daily highs to daily lows will not be as great as in areas surrounded by land.