The 1870 hurricane season

Every storm track on one map · Atlantic · 11 systems

Atlantic storms
11
10 hurricanes · 2 major
Atlantic ACE
88
1991–2020 avg ≈ 123
Strongest
127 mph
Unnamed hurricane #4
Landfalling
2
Atlantic storms

TD TS Cat 1 2 3 4 5 · hover a track to highlight it, click to open the storm’s own page with an animated replay.

01 · Summary

How the 1870 season went

The 1870 Atlantic season produced 11 tropical storms, 10 hurricanes and 2 major hurricanes (Cat 3+), with an accumulated cyclone energy (ACE) of 88. The strongest was Unnamed hurricane #4 at 127 mph / 948 mb. 2 storms made landfall.

02 · Timeline

Storm by storm, month by month

JULAUGSEPOCTNOVUnnamed hurricane #1 — July 30–30, 1870Unnamed hurricane #1 Cat 1Unnamed hurricane #2 — August 30 – September 4, 1870Unnamed hurricane #2 Cat 2Unnamed storm #3 — September 1–4, 1870Unnamed storm #3 TSUnnamed hurricane #4 — September 9–13, 1870Unnamed hurricane #4 Cat 3Unnamed hurricane #5 — September 17–20, 1870Unnamed hurricane #5 Cat 11870 Matanzas Hurricane — October 5–14, 18701870 Matanzas Hurricane Cat 3Unnamed hurricane #7 — October 7–7, 1870Unnamed hurricane #7 Cat 1Unnamed hurricane #8 — October 10–11, 1870Unnamed hurricane #8 Cat 1Unnamed hurricane #9 — October 19–22, 1870Unnamed hurricane #9 Cat 2Unnamed hurricane #10 — October 23–23, 1870Unnamed hurricane #10 Cat 2Unnamed hurricane #11 — October 30 – November 3, 1870Unnamed hurricane #11 Cat 1

Each bar is one storm’s life, colored by its strength at that moment (faded = post-tropical). Click a bar to open the storm.

03 · Atlantic

Atlantic storms of 1870

StormDatesPeakPressureLandfallACE
Unnamed hurricane #1Jul 30 – Jul 30Cat 1 81 mph—yes0.5
Unnamed hurricane #2Aug 30 – Sep 4Cat 2 104 mph——13.7
Unnamed storm #3Sep 1 – Sep 4TS 69 mph1004 mb—4.3
Unnamed hurricane #4Sep 9 – Sep 13Cat 3 127 mph948 mb—14.3
Unnamed hurricane #5Sep 17 – Sep 20Cat 1 92 mph969 mb—7.4
1870 Matanzas HurricaneOct 5 – Oct 14Cat 3 115 mph959 mb—25.9
Unnamed hurricane #7Oct 7 – Oct 7Cat 1 81 mph——0.5
Unnamed hurricane #8Oct 10 – Oct 11Cat 1 81 mph——2.9
Unnamed hurricane #9Oct 19 – Oct 22Cat 2 104 mph—yes9.8
Unnamed hurricane #10Oct 23 – Oct 23Cat 2 104 mph——0.8
Unnamed hurricane #11Oct 30 – Nov 3Cat 1 81 mph——7.8
← Previous season1869Next season →1871

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