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SunnyDays

ERA5 almanac comparison — 8 years of real data

Park City vs Portland: weather in July

Essentially a tie in July: Park City is 41% clear historically, Portland is 38% clear (8-year ERA5 average) — within the noise. Avg high 81°F vs 80°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 July. For the actual forecast right now, each destination links to its live page below.

Park City

UT

Clear days, July
41%
Sample size
n=248 days
Avg high
81°F
Early July (1st–15th)
45%
Late July (16th–end)
38%
Rain frequency
37% of days

Portland

ME

Clear days, July
38%
Sample size
n=248 days
Avg high
80°F
Early July (1st–15th)
37%
Late July (16th–end)
38%
Rain frequency
38% of days

Frequently asked

Is Park City or Portland warmer in July?

Park City runs warmer by day in July. Park City averages highs of 81°F (highs n=248 days); Portland averages highs of 80°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.

Does it rain more in Park City or Portland in July?

Days with measurable rain: Park City 37%, Portland 38% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.

Which is sunnier in July, Park City or Portland?

Essentially a tie in July: Park City is 41% clear historically, Portland is 38% clear (8-year ERA5 average) — within the noise. Avg high 81°F vs 80°F. Pick based on flight time or price, not weather — the weather won't decide this one for you.

Compare Park City vs Portland 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.