ERA5 almanac comparison — 8 years of real data
Las Vegas vs Zion / Springdale: weather in June
Las Vegas edges out Zion / Springdale for sun in June: 95% clear historically versus 84% (8-year ERA5 average, a 11-point gap). Both are viable — Las Vegas is the safer bet.
What you are reading: 8-year historical averages, not a forecast.
Either destination can still surprise you this specific June. For this
week’s actual forecast, each destination links to its live page below.
Las Vegas
NV
- Clear days, June
- 95%
- Sample size
- n=240 days
- Avg high
- 102°F
- Early June (1st–15th)
- 93%
- Late June (16th–end)
- 97%
- Rain frequency
- 2% of days
Zion / Springdale
UT
- Clear days, June
- 84%
- Sample size
- n=240 days
- Avg high
- 83°F
- Early June (1st–15th)
- 81%
- Late June (16th–end)
- 86%
Compare Las Vegas vs Zion / Springdale 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.