ERA5 almanac comparison — 8 years of real data
Key West vs Palm Desert: weather in August
Palm Desert is the clear winner for sun in August: 90% of days historically clear versus just 13% in Key West — a 77-point gap across 8 years of ERA5 data. Key West also sees measurably more rain than Palm Desert this month (62% vs 5% of days). This isn't close.
Key West
FL
- Clear days, August
- 13%
- Sample size
- n=248 days
- Avg high
- 86°F
- Early August (1st–15th)
- 15%
- Late August (16th–end)
- 11%
- Rain frequency
- 62% of days
Palm Desert
CA
- Clear days, August
- 90%
- Sample size
- n=248 days
- Avg high
- 107°F
- Early August (1st–15th)
- 91%
- Late August (16th–end)
- 90%
- Rain frequency
- 5% of days
Frequently asked
Is Key West or Palm Desert warmer in August?
Palm Desert runs warmer by day in August. Key West averages highs of 86°F (highs n=248 days); Palm Desert averages highs of 107°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Key West or Palm Desert in August?
Key West is measurably wetter than Palm Desert. Days with measurable rain: Key West 62%, Palm Desert 5% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in August, Key West or Palm Desert?
Palm Desert is the clear winner for sun in August: 90% of days historically clear versus just 13% in Key West — a 77-point gap across 8 years of ERA5 data. Key West also sees measurably more rain than Palm Desert this month (62% vs 5% of days). This isn't close.
Compare Key West vs Palm Desert 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.