ERA5 almanac — 8 years of real data

McCall in July

McCall in July: 5% of days see measurable rain, 81°F average high, 76% of days historically clear (n=248, ERA5 2018–2025).

Historically one of the better months to visit McCall for sun: 76% of days are clear on average (n=248, avg high 81°F). Every percentage here is a historical average from 8 years of ERA5 data — 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 McCall 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 McCall 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	69%	n=120	81°F
Late July 16th–end	83%	n=128	81°F
Full month average	76%	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 McCall 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	85%	n=120
Late July 16th–end	95%	n=128
Full month average	90%	n=248

14.5 h median sunshine per day 99% of days exceed 8 h sunshine 5% of days see ≥ 1 mm rain — rain is not hidden

Comparison (old vs new): WMO-code “clear” bar: 76%. Sunshine-based “warm & sunny”: 90%. The 14-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

McCall clears solidly in July: 76% of days historically (n=248), avg high 81°F. Most trips here in July will find more sun than cloud.

Every month in McCall

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

Historical clear-sky % for McCall, 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	5%	n=248	All destinations →
June	30%	n=240	All destinations →
July ← this page	76%	n=248	All destinations →
August	65%	n=248	All destinations →
September	34%	n=240	All destinations →
October	1%	n=248	All destinations →
November	0%	n=240	All destinations →
December	0%	n=248	All destinations →

Frequently asked

Does it rain in McCall in July?

Rarely. Only 5% of days in McCall see measurable rain in July, based on 8 years of ERA5 historical data (n=248 days, 2018–2025). This is a historical average, not a forecast.

Is McCall good for sun in July?

Yes. McCall is historically strong for sun in July: 76% of days are clear on average (avg high 81°F, n=248 days, ERA5 2018–2025).

How McCall compares in July

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

→ McCall vs Phoenix in July — Phoenix is 76% clear historically
→ McCall vs Scottsdale in July — Scottsdale is 76% clear historically
→ McCall vs Scottsdale Desert Ridge in July — Scottsdale Desert Ridge is 76% clear historically

→ McCall live forecast — this week’s actual 7-day weather, not historical
→ Best destinations in July — all destinations ranked by July clear-sky %
→ All destinations
→ Raw data (JSON) — buckets, n, source

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.