Hurricanes and Tornadoes That Hit Redwood City, CA

The nearest NOAA station with 1991–2020 climate normals is Redwood City, CA, in Redwood City at 31 feet. July is the warmest, with an average high of 81°F and low of 57°F; December is the coolest, at 59°F and 40°F. December is the wettest at 3.9 inches of precipitation on average and July and August the driest at 0.0 inches; the year adds up to 19.2 inches over 36 days with at least a tenth of an inch. Highs reach 90°F on about 18 days a year, almost all from May to October. Lows fall below freezing on about 6 nights a year. That 19.2 inches is more than at 134 of the 226 California stations used on this site (59%). Menlo Park, 3 miles southeast, has its own station (Palo Alto, CA): 15.2 inches a year, 4.0 less than here, and a July average high of 79°F against 81°F.

Water temperature at the NOAA tide station Redwood City, CA, 3 miles northeast, averaged 74°F in August and 54°F in January over 2021–2025. No month averaged 80°F. Sea level at the Redwood City tide gauge, 3 miles from Redwood City, has risen 1.08 ± 0.25 inches per decade from 1974 to 2025, NOAA's linear trend; at that pace it is 10.8 inches in a hundred years. That is faster than at 62 of the 144 U.S. gauges with a NOAA trend.

Since 1996, the National Weather Service has logged 49 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Redwood City: 36 floods, 5 flash floods, 3 heavy rain events, 3 thunderstorm wind reports and 2 lightning strikes. They killed 1 person and injured 0, and the NWS estimated $20.4 million in property and crop damage. The strongest thunderstorm gust on record here was 69 mph, on October 19, 2004. Of the 550 California cities on this site with a flash flood on record, 163 have had fewer than Redwood City.

Flood insurance policyholders in Redwood City's 4 ZIP codes have filed 125 claims with the National Flood Insurance Program since 1978, and were paid $3.2 million for buildings and contents, in the dollars of each year. The most came from California Atmospheric River in 2022: 48 claims (38% of all) and $2.4 million, then Flooding in 1986 with 19 and Pineapple Express - Southern in 1998 with 19. 70% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 415 California cities on this site with 10 or more claims, 336 have fewer than Redwood City.