ERA5 almanac — 8 years of real data

Burlington in July

Burlington in July: 43% of days see measurable rain, 82°F average high, 32% of days historically clear (n=248, ERA5 2018–2025).

Burlington in July is historically a poor month for sun: only 32% of days clear across 8 years (n=248, avg high 82°F). 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 Burlington 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 Burlington 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	35%	n=120	82°F
Late July 16th–end	29%	n=128	82°F
Full month average	32%	n=248	82°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 Burlington 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	90%	n=120
Late July 16th–end	87%	n=128
Full month average	88%	n=248

13.4 h median sunshine per day 85% of days exceed 8 h sunshine 43% of days see ≥ 1 mm rain — rain is not hidden

Comparison (old vs new): WMO-code “clear” bar: 32%. Sunshine-based “warm & sunny”: 88%. 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

Burlington is mostly overcast in July historically: only 32% of days are clear across 8 years (n=248), avg high 82°F. Most visitors this month will see more clouds than sun.

Every month in Burlington

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

Historical clear-sky % for Burlington, 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	2%	n=240	All destinations →
May	15%	n=248	All destinations →
June	27%	n=240	All destinations →
July ← this page	32%	n=248	All destinations →
August	31%	n=248	All destinations →
September	26%	n=240	All destinations →
October	6%	n=248	All destinations →
November	0%	n=240	All destinations →
December	0%	n=248	All destinations →

Frequently asked

Does it rain in Burlington in July?

Sometimes. Burlington sees measurable rain on 43% of days in July historically (n=248 days, ERA5 2018–2025) — not frequent enough to plan around, but not negligible either.

Is Burlington good for sun in July?

It's mixed. Burlington in July is clear on 32% of days historically (avg high 82°F, n=248 days, ERA5 2018–2025) — the outcome varies year to year.

How Burlington compares in July

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

→ Burlington vs Virginia Beach in July — Virginia Beach is 32% clear historically
→ Burlington vs Boundary Waters in July — Boundary Waters is 31% clear historically
→ Burlington vs Hudson Valley in July — Hudson Valley is 33% clear historically

→ Burlington 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.