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- Tornadoes since 2000: 7 (0.75 per 100 square miles)
- #1,900 nationally
- Tornadoes this year, as of May 31: 1

#3. Sussex County

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- Tornadoes since 2000: 5 (1.17 per 100 square miles)
- #1,662 nationally
- Tornadoes this year, as of May 31: 0

#2. New Castle County

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- Tornadoes since 2000: 7 (1.19 per 100 square miles)
- #1,649 nationally
- Tornadoes this year, as of May 31: 0

#1. Kent County