Climate & Weather in Midlothian
Midlothian shares Richmond's genuine humid subtropical, four-season climate -- hot, humid summers and cooler winters with genuinely low snowfall -- since the area sits within the same broader central Virginia climate zone, with no meaningfully distinct microclimate of its own identified this pass.
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Learn moreA shared regional climate with Richmond
Midlothian sits within the same broader central Virginia climate zone as Richmond and Henrico, matching the regional humid subtropical pattern documented in richmond-va.js: hot, humid summers (July averaging a 90°F high / 72°F low) and cooler winters (January averaging a 47°F high / 31°F low), with average humidity around 67% and roughly 44 inches of annual rainfall.
Genuinely low snowfall, real if infrequent winter weather
Midlothian sees genuinely low annual snowfall (approximately 9 inches per year regionally), consistent with the broader central Virginia pattern -- real winters exist, but heavy, sustained snow accumulation is not the norm.
Swift Creek Reservoir's real local rainfall-runoff sensitivity
As documented on insurance-hazard-costs, Swift Creek Reservoir's watershed showed real, current sensitivity to intense, concentrated rainfall events -- an August 2020 storm dropped 11 inches of rain over the reservoir in a few hours, severely damaging the county's Addison-Evans water treatment plant. This is a real, local, dated example of how the broader region's intense-rainfall risk can concentrate around a specific waterway.
Key takeaways
- Midlothian shares Richmond's humid subtropical, four-season climate: hot, humid summers (July avg. 90°F high) and cooler winters (January avg. 47°F high), roughly 44 inches of annual rainfall.
- Snowfall runs genuinely low (~9 inches/year regionally) -- real winters, but not heavy sustained accumulation.
- Swift Creek Reservoir's watershed showed real, documented sensitivity to intense rainfall (11 inches in a few hours, August 2020), a local example of the region's broader intense-rainfall risk.
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