Astoria lies within the Marine west coast climate zone (K�ppen Cfb), with very mild temperatures year-round, some of the most consistent in the continental United States; winters are mild for Astoria's latitude, generally above freezing, even at night, and wet. Summers are cool, although short heat waves can occur. Rainfall is most abundant in late fall and winter, and lightest in mid-late summer. Snowfall is relatively rare but can accumulate in small amounts in winter.
Annually, there is an average of only 0.5 days with maximum temperatures of 90 �F (32 �C) or higher. There are an average of 34.3 days with minimum temperatures at or below the freezing mark
