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Counties · Ohio

Knox County

53 storm reports in the past 12 months. This page is a summary of National Weather Service reports; it is not a Knox County government page.

Largest hail, 12 months

1 in (estimated)

3 S Butler, Mar 26, 2026

Tornado reports, 12 months

1

Tornado reports are confirmed or ruled out later by NWS damage surveys.

Reports

5 reports match.

  1. Sun, Aug 16, 2026

  2. FloodingFlood

    6 ENE Martinsburg, Knox County

    Water over Front Royal Road in far southeast Knox County. Time estimated.

    Reported by 911 Call Center · NWS Cleveland

  3. FloodingFlood

    5 SSE Danville, Knox County

    Water over Walhonding Road in far eastern Knox County. Time estimated.

    Reported by 911 Call Center · NWS Cleveland

  4. FloodingFlood

    5 W Danville, Knox County

    Several photos of minor flooding from near Apple Valley Lake in Howard Township. Overflowing drainage ditches led to some water over roadways.

    Reported by Amateur Radio · NWS Cleveland

  5. Fri, Apr 3, 2026

  6. FloodingFlood

    4 SW Butler, Knox County

    Knox County branch of Ohio DOT reported flooding on SR95 near the Knox/Richland county line.

    Reported by Dept Of Highways · NWS Cleveland

  7. FloodingFlash flood

    4 NNE Fredericktown, Knox County

    The Knox County branch of the Ohio DOT sent a photo of water 3 to 4 inches deep on Yankee Street just east of Roberts Road.

    Reported by Dept Of Highways · NWS Cleveland