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SunnyDays

ERA5 almanac — 8 years of real data

Park City in July

Park City in July: 37% of days see measurable rain, 81°F average high, 41% of days historically clear (n=248, ERA5 2018–2025).

Park City in July is a mixed month for sun: 41% of days historically clear (n=248, avg high 81°F). The outcome varies year to year — check the early/late split below. Historical average, not a forecast.

What you are reading: 8-year historical averages from the ERA5 reanalysis, not a forecast. A month that is historically 90% clear can still be overcast on your specific trip. For this week’s actual forecast, see the live Park City page. Both can be true at once: “historically strong in this month; this particular week is not.” We label which is which.

Early vs. Late July

Clear-sky percentage for Park City in July, split by half-month. “n” is the number of days sampled across 8 years (2018–2025).
Period % Clear days Sample (n) Avg high
Early July
1st–15th		 45% n=120 81°F
Late July
16th–end		 38% n=128 81°F
Full month average 41% n=248 81°F

Sunshine & warmth in July

A second measure using actual sunshine hours (ERA5 sunshine_duration), not the daily weather code. A Lowcountry day with 12 hours of sun and a 25-minute afternoon storm is counted below as a warm, sunny day — because it was. How we define this.

Sunshine-based metrics for Park City in July. Primary: % of days ≥ 72°F with > 6 h of sunshine.
Period Warm & sunny (≥72°F, >6 h sun) Sample (n)
Early July
1st–15th		 96% n=120
Late July
16th–end		 97% n=128
Full month average 97% n=248
14.3 h median sunshine per day 98% of days exceed 8 h sunshine 37% of days see ≥ 1 mm rain — rain is not hidden
Comparison (old vs new): WMO-code “clear” bar: 41%. Sunshine-based “warm & sunny”: 97%. The 56-point gap is from brief afternoon convective storms that stamp the whole day as “rain” in the WMO code but leave the bulk of the sunshine untouched.

Bottom line

Park City in July is genuinely mixed: 41% of days historically clear (n=248), avg high 81°F — more cloudy than clear. The outcome varies year to year; don't book if you need guaranteed sun.

Every month in Park City

Compare across all months with data. Numbers are historical clear-sky %.

Historical clear-sky % for Park City, all months, ERA5 2018–2025.
Month % Clear Sample (n)
January 0% n=248 All destinations →
February 0% n=226 All destinations →
March 0% n=248 All destinations →
April 0% n=240 All destinations →
May 1% n=248 All destinations →
June 32% n=240 All destinations →
July ← this page 41% n=248 All destinations →
August 41% n=248 All destinations →
September 30% n=240 All destinations →
October 2% n=248 All destinations →
November 0% n=240 All destinations →
December 0% n=248 All destinations →

Frequently asked

Does it rain in Park City in July?

Sometimes. Park City sees measurable rain on 37% of days in July historically (n=248 days, ERA5 2018–2025) — not frequent enough to plan around, but not negligible either.

Is Park City good for sun in July?

It's mixed. Park City in July is clear on 41% of days historically (avg high 81°F, n=248 days, ERA5 2018–2025) — the outcome varies year to year.

How Park City compares in July

Head-to-head clear-sky comparisons against destinations travelers plausibly weigh against Park City this month — same passport tier, similar flight distance, both sides from the same 8-year ERA5 record.

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.