Climate in Middleburg

Middleburg shares Clay County's inland humid subtropical climate -- hot, humid summers and mild winters, with rainfall concentrated in the summer months -- a genuinely different profile from the directly-oceanfront beach towns elsewhere in this dataset's Jacksonville-area coverage.

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Hot, humid summers and mild winters

This dataset's Orange Park research -- the closest comparable inland Clay County climate data available, and directly applicable to Middleburg as the same inland, non-coastal part of the county -- cites July highs averaging around 92°F and January lows averaging about 45°F, per weather-and-climate.com normals, with the hottest stretch of the year averaging around 81°F and summers described as long, hot, and oppressive with mostly cloudy skies.

Summer-concentrated rainfall, without the coastal towns' storm-surge exposure

Annual rainfall runs about 50 inches for inland Clay County, per that same research, with June, July, and August as the clearly wettest months -- a more pronounced summer-rain pattern than the beach towns' near-year-round rainfall. Humidity peaks in August at around 81%. Because Middleburg is inland rather than coastal, it does not carry the direct storm-surge exposure the beach towns do -- Black Creek flooding from heavy rainfall, not surge, is the more directly relevant hazard here (see taxes-insurance).

Hurricane season overlaps the wettest, most humid months

Atlantic hurricane season runs June through November, with the highest-risk window from August through October -- the same months that already carry the heaviest rainfall and highest humidity locally, compounding both factors during that stretch.

Key takeaways

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Last reviewed: 2026-09-02. Independent research; not financial, tax, or legal advice -- confirm current figures with a local professional before making a decision.