Hurricanes and Tornadoes That Hit San German, PR

The nearest NOAA station with 1991–2020 climate normals is Lajas Substn, PR RQ, 5 miles southwest of San German at 90 feet. July is the warmest, with an average high of 92°F and low of 70°F; February is the coolest, at 87°F and 62°F. October is the wettest at 6.3 inches of precipitation on average and December the driest at 2.0 inches; the year adds up to 44.9 inches over 74 days with at least a tenth of an inch. June to November, the hurricane season months, bring 63% of the year's precipitation (28.2 of 44.9 inches); the other six months are drier. September has brought the most of the 50 tropical systems that passed within 75 miles (23); a normal September there has highs of 91°F and 5.7 inches of precipitation. Highs reach 90°F on about 200 days a year. A night below freezing comes less than once a year on average. That 44.9 inches is more than at 3 of the 21 Puerto Rico stations used on this site (14%). Hormigueros, 6 miles northwest, has its own station (Mayaguez City, PR RQ): 51.3 inches a year, 6.4 more than here, and a July average high of 90°F against 92°F.

Water temperature at the NOAA tide station Magueyes Island, PR, 9 miles south, averaged 88°F in September and 81°F in February over 2021–2025. Sea level at the Magueyes Island tide gauge, 9 miles from San German, has risen 0.81 ± 0.06 inches per decade from 1955 to 2025, NOAA's linear trend; at that pace it is 8.1 inches in a hundred years. That is faster than at 41 of the 144 U.S. gauges with a NOAA trend.

Since 1996, the National Weather Service has logged 226 flood, rain, thunderstorm wind and lightning events that began within 10 miles of San German: 96 floods, 67 flash floods, 29 thunderstorm wind reports, 28 heavy rain events and 6 lightning strikes. None is recorded as killing or injuring anyone; the NWS estimated $14.0 million in property and crop damage. The strongest thunderstorm gust on record here was 52 mph, on July 17, 2010. October has had the most flash floods, 18 of 67. Of the 86 Puerto Rico cities on this site with a flash flood on record, 36 have had fewer than San German.

Flood insurance policyholders in San German's ZIP code 00683 have filed 32 claims with the National Flood Insurance Program since 1978, and were paid $132,000 for buildings and contents, in the dollars of each year. The year with the most claims was 2001, with 13. 38% 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, 17 have fewer than San German.