Johns Island Rainfall Forecast

  • No Rain
  • 5%
  • 15%
  • 45%
  • 75%
  • 80%
  • 5%
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  • Rainfall Probability Forecast NOAA

  • Rain Today Real-Time

Johns Island Rainfall Statistics

January Rainfall

Charleston Executive Airport (1.2 miles)

  • Total Rainfall January

    1.3in

  • Daily Average January

    0.1in

  • Wettest Day 18 January, 2026

    0.8in

  • Wet Days January

    3/21 (14%)

Climate (2010–Present)

Charleston Executive Airport (1.2 miles)

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  • Annual Average 2021–2025

    27.5in

  • Monthly Average 2021–2025

    2.3in

  • Daily Average 2021–2026

    0.1in

  • Wettest Day 23 August, 2025

    6.6in
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