ERA5 almanac comparison — 8 years of real data
Door County vs St. Augustine: weather in October
St. Augustine is the clear winner for sun in October: 34% of days historically clear versus just 3% in Door County — a 31-point gap across 8 years of ERA5 data. This isn't close.
Door County
WI
- Clear days, October
- 3%
- Sample size
- n=248 days
- Avg high
- 57°F
- Early October (1st–15th)
- 4%
- Late October (16th–end)
- 2%
- Rain frequency
- 38% of days
St. Augustine
FL
- Clear days, October
- 34%
- Sample size
- n=248 days
- Avg high
- 79°F
- Early October (1st–15th)
- 28%
- Late October (16th–end)
- 39%
- Rain frequency
- 39% of days
Frequently asked
Is Door County or St. Augustine warmer in October?
St. Augustine runs warmer by day in October. Door County averages highs of 57°F (highs n=248 days); St. Augustine averages highs of 79°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Door County or St. Augustine in October?
Days with measurable rain: Door County 38%, St. Augustine 39% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in October, Door County or St. Augustine?
St. Augustine is the clear winner for sun in October: 34% of days historically clear versus just 3% in Door County — a 31-point gap across 8 years of ERA5 data. This isn't close.
Compare Door County vs St. Augustine 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.