ERA5 almanac comparison — 8 years of real data
Park City vs Whistler: weather in April
Essentially a tie in April: Park City is 0% clear historically, Whistler is 1% clear (8-year ERA5 average) — within the noise. Avg high 46°F vs 49°F. Whistler also sees measurably more rain than Park City this month (50% vs 34% of days). Pick based on flight time or price, not weather — the weather won't decide this one for you.
Park City
UT
- Clear days, April
- 0%
- Sample size
- n=240 days
- Avg high
- 46°F
- Early April (1st–15th)
- 0%
- Late April (16th–end)
- 0%
- Rain frequency
- 34% of days
Whistler
BC
- Clear days, April
- 1%
- Sample size
- n=240 days
- Avg high
- 49°F
- Early April (1st–15th)
- 0%
- Late April (16th–end)
- 2%
- Rain frequency
- 50% of days
Compare Park City vs Whistler in another month
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.