ERA5 almanac comparison — 8 years of real data
Nashville vs Wine Country Sonoma: weather in July
Wine Country Sonoma is the clear winner for sun in July: 96% of days historically clear versus just 19% in Nashville — a 77-point gap across 8 years of ERA5 data. Nashville also sees measurably more rain than Wine Country Sonoma this month (58% vs 0% of days). This isn't close.
What you are reading: 8-year historical averages, not a forecast.
Either destination can still surprise you this specific July. For this
week’s actual forecast, each destination links to its live page below.
Nashville
TN
- Clear days, July
- 19%
- Sample size
- n=248 days
- Avg high
- 89°F
- Early July (1st–15th)
- 24%
- Late July (16th–end)
- 14%
- Rain frequency
- 58% of days
Wine Country Sonoma
CA
- Clear days, July
- 96%
- Sample size
- n=248 days
- Avg high
- 86°F
- Early July (1st–15th)
- 97%
- Late July (16th–end)
- 96%
- Rain frequency
- 0% of days
Compare Nashville vs Wine Country Sonoma 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 7-day outlook for any destination is on its own page and may differ from the long-run average. Data from Open-Meteo.