ERA5 almanac comparison — 8 years of real data
Dallas vs Laguna Beach: weather in December
Essentially a tie in December: Dallas is 9% clear historically, Laguna Beach is 9% clear (8-year ERA5 average) — within the noise. Avg high 62°F vs 65°F. Pick based on flight time or price, not weather — the weather won't decide this one for you.
What you are reading: 8-year historical averages, not a forecast.
Either destination can still surprise you this specific December. For this
week’s actual forecast, each destination links to its live page below.
Dallas
TX
- Clear days, December
- 9%
- Sample size
- n=248 days
- Avg high
- 62°F
- Early December (1st–15th)
- 8%
- Late December (16th–end)
- 10%
- Rain frequency
- 25% of days
Laguna Beach
CA
- Clear days, December
- 9%
- Sample size
- n=248 days
- Avg high
- 65°F
- Early December (1st–15th)
- 13%
- Late December (16th–end)
- 5%
Compare Dallas vs Laguna Beach 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.