ERA5 almanac comparison — 8 years of real data
Moab vs St. Augustine: weather in April
Essentially a tie in April: Moab is 46% clear historically, St. Augustine is 42% clear (8-year ERA5 average) — within the noise. Avg high 72°F vs 76°F. St. Augustine also sees measurably more rain than Moab this month (31% vs 9% of days). Pick based on flight time or price, not weather — the weather won't decide this one for you.
Moab
UT
- Clear days, April
- 46%
- Sample size
- n=240 days
- Avg high
- 72°F
- Early April (1st–15th)
- 41%
- Late April (16th–end)
- 52%
- Rain frequency
- 9% of days
St. Augustine
FL
- Clear days, April
- 42%
- Sample size
- n=240 days
- Avg high
- 76°F
- Early April (1st–15th)
- 34%
- Late April (16th–end)
- 51%
- Rain frequency
- 31% of days
Compare Moab 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 7-day outlook for any destination is on its own page and may differ from the long-run average. Data from Open-Meteo.