The data shown on this page are based on 30 years of analysis (from 1980 to 2009) of tropical storms that affected North Carolina, either by direct landfall or a "close call". A storm's impact, including its radius, was determined by examining satellite data and comparing it against observed precipitation data from COOP, ASOS, ECONet and RAWS weather stations.

For more information about this analysis, click here.

This data can be viewed on a station-by-station basis or by climate division. The date range can also be changed to view between 1 and 30 years of data.

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Average Tropical Contribution to
Annual Precipitation Total
<3% 3% to 6% 6% to 8% 8% to 10% >10%