ERA5 almanac comparison — 8 years of real data
Jackson Hole vs Yellowstone: weather in June
Jackson Hole edges out Yellowstone for sun in June: 30% clear historically versus 4% (8-year ERA5 average, a 26-point gap). Both are viable — Jackson Hole 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.
Jackson Hole
WY
- Clear days, June
- 30%
- Sample size
- n=240 days
- Avg high
- 70°F
- Early June (1st–15th)
- 25%
- Late June (16th–end)
- 34%
- Rain frequency
- 28% of days
Yellowstone
WY
- Clear days, June
- 4%
- Sample size
- n=240 days
- Avg high
- 59°F
- Early June (1st–15th)
- 2%
- Late June (16th–end)
- 7%
Compare Jackson Hole vs Yellowstone 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.