The unnamed hurricane of 1870

Aug 30, 1870 to Sep 4, 1870Peak 104 mph

The unnamed hurricane of 1870 came within 100 miles of 2 U.S. counties without passing within 50.

Major hurricane
Hurricane
Tropical storm
Post-tropical

Watch how it happened

Unnamed hurricane · 1870

How it happened

Follow the storm’s path, strength and milestones.

About this replay

Date and time (UTC)—Historical replay — not a forecast

Wind speed—

Category—

Pressure—

The storm

Peak strength: Category 2; 104 mph, 90 kt
Counties within 50 miles: 0; None
Counties within 100 miles: 2; MA
Strongest near the U.S.: Category 1; Nantucket County, MA, 80.4 mi, Sep 3, 1870
Landfalls recorded: 0; Anywhere on the track

Every county it passed

Closest approach to each county boundary, with the storm’s strength at that moment.

Counties within 100 miles

Nantucket County	MA	80.4	Category 1	Sep 3, 1870
Barnstable County	MA	95.3	Category 1	Sep 3, 1870

Distances are measured from hourly positions interpolated between the National Hurricane Center’s six-hourly fixes to each county boundary. Strength is shown only where the storm was still tropical. Methodology.

National Hurricane Center HURDAT2. Storm totals cover the Atlantic and Northeast and Central Pacific basins.