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SunnyDays

ERA5 almanac comparison — 8 years of real data

Charleston vs Memphis: weather in July

Memphis edges out Charleston for sun in July: 33% clear historically versus 12% (8-year ERA5 average, a 21-point gap). Charleston also sees measurably more rain than Memphis this month (61% vs 41% of days). Both are viable — Memphis is the safer bet.

What you are reading: 8-year historical averages, not a forecast. Either destination can still surprise you this specific July. For the actual forecast right now, each destination links to its live page below.

Charleston

SC

Clear days, July
12%
Sample size
n=248 days
Avg high
88°F
Early July (1st–15th)
11%
Late July (16th–end)
13%
Rain frequency
61% of days
See the live forecast →

Memphis

TN

Clear days, July
33%
Sample size
n=248 days
Avg high
91°F
Early July (1st–15th)
31%
Late July (16th–end)
34%
Rain frequency
41% of days

Frequently asked

Is Charleston or Memphis warmer in July?

Memphis runs warmer by day in July. Charleston averages highs of 88°F (highs n=248 days); Memphis averages highs of 91°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.

Does it rain more in Charleston or Memphis in July?

Charleston is measurably wetter than Memphis. Days with measurable rain: Charleston 61%, Memphis 41% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.

Which is sunnier in July, Charleston or Memphis?

Memphis edges out Charleston for sun in July: 33% clear historically versus 12% (8-year ERA5 average, a 21-point gap). Charleston also sees measurably more rain than Memphis this month (61% vs 41% of days). Both are viable — Memphis is the safer bet.

Compare Charleston vs Memphis in another month

All percentages are historical averages from the ERA5 reanalysis via Open-Meteo, 8 full years (2018–2025). “Clear” means avg high ≥ 72 °F, precipitation < 1 mm, and a non-precipitation weather code. This is history, not a forecast. The live forecast for any destination is on its own page and may differ from the long-run average. Data from Open-Meteo.