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SunnyDays

ERA5 almanac — 8 years of real data

Hudson Valley in June

Hudson Valley in June: 38% of days see measurable rain, 80°F average high, 38% of days historically clear (n=240, ERA5 2018–2025).

Hudson Valley in June is historically a poor month for sun: only 38% of days clear across 8 years (n=240, avg high 80°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 Hudson Valley 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 June

Clear-sky percentage for Hudson Valley in June, split by half-month. “n” is the number of days sampled across 8 years (2018–2025).
Period % Clear days Sample (n) Avg high
Early June
1st–15th		 37% n=120 80°F
Late June
16th–end		 39% n=120 80°F
Full month average 38% n=240 80°F

Sunshine & warmth in June

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 Hudson Valley in June. Primary: % of days ≥ 72°F with > 6 h of sunshine.
Period Warm & sunny (≥72°F, >6 h sun) Sample (n)
Early June
1st–15th		 73% n=120
Late June
16th–end		 82% n=120
Full month average 78% n=240
12.3 h median sunshine per day 78% of days exceed 8 h sunshine 38% of days see ≥ 1 mm rain — rain is not hidden
Comparison (old vs new): WMO-code “clear” bar: 38%. Sunshine-based “warm & sunny”: 78%. The 40-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

Hudson Valley is mostly overcast in June historically: only 38% of days are clear across 8 years (n=240), avg high 80°F. Most visitors this month will see more clouds than sun.

Every month in Hudson Valley

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

Historical clear-sky % for Hudson Valley, 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 4% n=240 All destinations →
May 20% n=248 All destinations →
June ← this page 38% n=240 All destinations →
July 33% n=248 All destinations →
August 37% n=248 All destinations →
September 33% n=240 All destinations →
October 11% n=248 All destinations →
November 1% n=240 All destinations →
December 0% n=248 All destinations →

Frequently asked

Does it rain in Hudson Valley in June?

Sometimes. Hudson Valley sees measurable rain on 38% of days in June historically (n=240 days, ERA5 2018–2025) — not frequent enough to plan around, but not negligible either.

Is Hudson Valley good for sun in June?

It's mixed. Hudson Valley in June is clear on 38% of days historically (avg high 80°F, n=240 days, ERA5 2018–2025) — the outcome varies year to year.

How Hudson Valley compares in June

Head-to-head clear-sky comparisons against destinations travelers plausibly weigh against Hudson Valley 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.