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SunnyDays

ERA5 almanac comparison — 8 years of real data

Jackson Hole vs Nashville: weather in June

Essentially a tie in June: Jackson Hole is 30% clear historically, Nashville is 30% clear (8-year ERA5 average) — within the noise. Avg high 70°F vs 86°F. Nashville also sees measurably more rain than Jackson Hole this month (49% vs 28% of days). 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 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

Nashville

TN

Clear days, June
30%
Sample size
n=240 days
Avg high
86°F
Early June (1st–15th)
34%
Late June (16th–end)
26%
Rain frequency
49% of days

Compare Jackson Hole vs Nashville 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.