Hurricanes and Tornadoes That Hit Seaside, OR

The nearest NOAA station with 1991–2020 climate normals is Seaside, OR, 7 miles northwest of Seaside at 10 feet. August is the warmest, with an average high of 66°F and low of 54°F; December is the coolest, at 51°F and 39°F. November is the wettest at 12.0 inches of precipitation on average and July the driest at 1.0 inches; the year adds up to 76.8 inches over 129 days with at least a tenth of an inch. Highs of 90°F are rare: fewer than one day a year on average. Lows fall below freezing on about 29 nights a year. That 76.8 inches is more than at 66 of the 77 Oregon stations used on this site (86%). Nehalem, 15 miles south, has its own station (Tillamook, OR): 90.0 inches a year, 13.2 more than here, and an August average high of 69°F against 66°F.

Sea level at the Astoria tide gauge, 20 miles from Seaside, has fallen 0.06 ± 0.06 inches per decade from 1925 to 2025, NOAA's linear trend; at that pace it is 0.6 inches in a hundred years. That is faster than at 16 of the 144 U.S. gauges with a NOAA trend.

Since 1996, the National Weather Service has logged 9 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Seaside: 5 floods, 2 heavy rain events and 2 thunderstorm wind reports. The strongest thunderstorm gust on record here was 60 mph, on November 5, 2025.

Flood insurance policyholders in Seaside's ZIP code 97138 have filed 83 claims with the National Flood Insurance Program since 1990, and were paid $968,000 for buildings and contents, in the dollars of each year. The most came from Winter storm in 2007: 19 claims (23% of all) and $225,000, then Flooding in 1996 with 17. 43% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 77 Oregon cities on this site with 10 or more claims, 62 have fewer than Seaside.