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SunnyDays

ERA5 almanac — 8 years of real data

Steamboat Springs in August

Steamboat Springs in August: 17% of days see measurable rain, 82°F average high, 62% of days historically clear (n=248, ERA5 2018–2025).

Steamboat Springs in August is a mixed month for sun: 62% of days historically clear (n=248, avg high 82°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 Steamboat Springs 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 August

Clear-sky percentage for Steamboat Springs in August, split by half-month. “n” is the number of days sampled across 8 years (2018–2025).
Period % Clear days Sample (n) Avg high
Early August
1st–15th		 66% n=120 82°F
Late August
16th–end		 59% n=128 82°F
Full month average 62% n=248 82°F

Sunshine & warmth in August

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 Steamboat Springs in August. Primary: % of days ≥ 72°F with > 6 h of sunshine.
Period Warm & sunny (≥72°F, >6 h sun) Sample (n)
Early August
1st–15th		 97% n=120
Late August
16th–end		 95% n=128
Full month average 96% n=248
13.2 h median sunshine per day 98% of days exceed 8 h sunshine 17% of days see ≥ 1 mm rain — rain is not hidden
Comparison (old vs new): WMO-code “clear” bar: 62%. Sunshine-based “warm & sunny”: 96%. The 34-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

Steamboat Springs clears solidly in August: 62% of days historically (n=248), avg high 82°F. Most trips here in August will find more sun than cloud.

Every month in Steamboat Springs

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

Historical clear-sky % for Steamboat Springs, 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 4% n=248 All destinations →
June 45% n=240 All destinations →
July 64% n=248 All destinations →
August ← this page 62% n=248 All destinations →
September 52% n=240 All destinations →
October 5% n=248 All destinations →
November 0% n=240 All destinations →
December 0% n=248 All destinations →

Frequently asked

Does it rain in Steamboat Springs in August?

Rarely. Only 17% of days in Steamboat Springs see measurable rain in August, based on 8 years of ERA5 historical data (n=248 days, 2018–2025). This is a historical average, not a forecast.

Is Steamboat Springs good for sun in August?

Yes. Steamboat Springs is historically strong for sun in August: 62% of days are clear on average (avg high 82°F, n=248 days, ERA5 2018–2025).

How Steamboat Springs compares in August

Head-to-head clear-sky comparisons against destinations travelers plausibly weigh against Steamboat Springs 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.