ERA5 almanac comparison — 8 years of real data
Palm Beach vs Tucson: weather in December
Essentially a tie in December: Palm Beach is 27% clear historically, Tucson is 27% clear (8-year ERA5 average) — within the noise. Avg high 76°F vs 67°F. Palm Beach also sees measurably more rain than Tucson this month (34% vs 13% of days). Pick based on flight time or price, not weather — the weather won't decide this one for you.
Palm Beach
FL
- Clear days, December
- 27%
- Sample size
- n=248 days
- Avg high
- 76°F
- Early December (1st–15th)
- 34%
- Late December (16th–end)
- 21%
- Rain frequency
- 34% of days
Tucson
AZ
- Clear days, December
- 27%
- Sample size
- n=248 days
- Avg high
- 67°F
- Early December (1st–15th)
- 25%
- Late December (16th–end)
- 28%
- Rain frequency
- 13% of days
Frequently asked
Is Palm Beach or Tucson warmer in December?
Palm Beach runs warmer by day in December. Palm Beach averages highs of 76°F (highs n=248 days); Tucson averages highs of 67°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Palm Beach or Tucson in December?
Palm Beach is measurably wetter than Tucson. Days with measurable rain: Palm Beach 34%, Tucson 13% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in December, Palm Beach or Tucson?
Essentially a tie in December: Palm Beach is 27% clear historically, Tucson is 27% clear (8-year ERA5 average) — within the noise. Avg high 76°F vs 67°F. Palm Beach also sees measurably more rain than Tucson this month (34% vs 13% of days). Pick based on flight time or price, not weather — the weather won't decide this one for you.
Compare Palm Beach vs Tucson 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.