Hurricanes and Tornadoes That Hit Cupertino, CA

The nearest NOAA station with 1991–2020 climate normals is Moffett Federal Airfield, CA, 6 miles north of Cupertino at 39 feet. August is the warmest, with an average high of 77°F and low of 59°F; December is the coolest, at 59°F and 42°F. February is the wettest at 2.9 inches of precipitation on average and July and August the driest at 0.0 inches; the year adds up to 13.5 inches over 32 days with at least a tenth of an inch. Highs reach 90°F on about 9 days a year, almost all from June to October. Lows fall below freezing on about 2 nights a year. That 13.5 inches is more than at 85 of the 226 California stations used on this site (38%). Saratoga, 4 miles southeast, has its own station (Los Gatos, CA): 22.3 inches a year, 8.8 more than here, and an August average high of 85°F against 77°F.

Water temperature at the NOAA tide station Redwood City, CA, 16 miles northwest, 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, 16 miles from Cupertino, 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 115 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Cupertino: 101 floods, 6 heavy rain events, 4 lightning strikes, 3 thunderstorm wind reports and 1 flash flood. They killed 2 people and injured 2, and the NWS estimated $15,000 in property and crop damage. The strongest thunderstorm gust on record here was 75 mph, on December 24, 2025.

Flood insurance policyholders in Cupertino's ZIP code 95014 have filed 24 claims with the National Flood Insurance Program since 1980, and were paid $889,000 for buildings and contents, in the dollars of each year. The most came from Pineapple Express - Southern in 1998: 10 claims (42% of all) and $155,000. 58% 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, 120 have fewer than Cupertino.