Hurricane and Tropical Cyclone Climatology

Maps and data courtesy NHC

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The figures below show the points of tropical cyclone genesis by 10-day periods during the hurricane season. These figures depict named storms only; no subtropical storms or unnamed storms. The source years include 1851-2023 for the Atlantic and 1949-2009 for the Eastern Pacific from the HURDAT database. Click on any map below to see a larger image.

Hurricane Origins by Month

Climatological Areas of Origin and Typical Hurricane Tracks by Month

These maps show where tropical cyclones (named storms and hurricanes) tend to occur during each month of the hurricane season. The data are shown as the number of named storms or hurricanes whose centers pass within 150 nautical miles of a point on the map during a 100-year period. For the Atlantic basin, the analyses are based on data from the 77-year period from 1944 to 2020 (starting at the beginning of the aircraft reconnaissance era) but normalized to 100 years. Please note that the map legends vary between named storms and hurricanes (but not between months) in order to make climatological patterns more apparent. As above, click on any map to see a larger image.