Skip to main content
SunnyDays

ERA5 almanac — 8 years of real data

Leavenworth in April

Leavenworth in April: rain frequency data not yet backfilled for this month, 58°F average high, 4% of days historically clear (n=240, ERA5 2018–2025).

Leavenworth in April is historically a poor month for sun: only 4% of days clear across 8 years (n=240, avg high 58°F). July is the clearest month for Leavenworth historically. 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 Leavenworth 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 April

Clear-sky percentage for Leavenworth in April, split by half-month. “n” is the number of days sampled across 8 years (2018–2025).
Period % Clear days Sample (n) Avg high
Early April
1st–15th		 2% n=120 58°F
Late April
16th–end		 6% n=120 58°F
Full month average 4% n=240 58°F

Bottom line

Leavenworth is historically almost never clear in April: only 4% of days meet the clear bar across 8 years (n=240). Come back in July if you want clear skies here. Plan entirely around indoor or overcast-friendly activities.

→ See all destinations in July — historically the best month for sun in Leavenworth.

Every month in Leavenworth

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

Historical clear-sky % for Leavenworth, 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 ← this page 4% n=240 All destinations →
May 31% n=248 All destinations →
June 55% n=240 All destinations →
July 86% n=248 All destinations →
August 83% n=248 All destinations →
September 57% n=240 All destinations →
October 16% n=248 All destinations →
November 0% n=240 All destinations →
December 0% n=248 All destinations →

Frequently asked

Is Leavenworth good for sun in April?

Not usually. Leavenworth is historically overcast in April: only 4% of days are clear (avg high 58°F, n=240 days, ERA5 2018–2025). July is historically far better for sun here.

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.