Hurricanes and Tornadoes That Hit Cidra, PR

The nearest NOAA station with 1991–2020 climate normals is Aibonito 1 S, PR RQ, 7 miles southwest of Cidra at 2,330 feet. August is the warmest, with an average high of 82°F and low of 68°F; January is the coolest, at 74°F and 62°F. September is the wettest at 9.4 inches of precipitation on average and February the driest at 3.0 inches; the year adds up to 61.7 inches over 106 days with at least a tenth of an inch. June to November, the hurricane season months, bring 61% of the year's precipitation (37.4 of 61.7 inches); the other six months are drier. September has brought the most of the 63 tropical systems that passed within 75 miles (28); a normal September there has highs of 81°F and 9.4 inches of precipitation. Highs of 90°F are rare: fewer than one day a year on average. A night below freezing comes less than once a year on average. That 61.7 inches is more than at 8 of the 21 Puerto Rico stations used on this site (38%). Aguas Buenas, 6 miles northeast, has its own station (Gurabo Substn, PR RQ): 64.7 inches a year, 3.0 more than here, and an August average high of 91°F against 82°F.

Water temperature at the NOAA tide station San Juan, La Puntilla, San Juan Bay, PR, 20 miles north, averaged 86°F in September and 80°F in February over 2021–2025. Sea level at the San Juan tide gauge, 20 miles from Cidra, has risen 0.85 ± 0.06 inches per decade from 1962 to 2025, NOAA's linear trend; at that pace it is 8.5 inches in a hundred years. That is faster than at 45 of the 144 U.S. gauges with a NOAA trend.

Since 1996, the National Weather Service has logged 221 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Cidra: 121 flash floods, 51 floods, 24 heavy rain events, 22 thunderstorm wind reports and 3 lightning strikes. They killed 1 person and injured 2, and the NWS estimated $2.50 billion in property and crop damage. The strongest thunderstorm gust on record here was 51 mph, on February 6, 2024. May has had the most flash floods, 31 of 121. Of the 86 Puerto Rico cities on this site with a flash flood on record, 56 have had fewer than Cidra.

Flood insurance policyholders in Cidra's ZIP code 00739 have filed 19 claims with the National Flood Insurance Program since 1978, and were paid $151,000 for buildings and contents, in the dollars of each year. 79% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 72 Puerto Rico cities on this site with 10 or more claims, 11 have fewer than Cidra.