ERA5 almanac comparison — 8 years of real data
Coeur d'Alene vs Phoenix: weather in August
Essentially a tie in August: Coeur d'Alene is 75% clear historically, Phoenix is 76% clear (8-year ERA5 average) — within the noise. Avg high 85°F vs 106°F. Pick based on flight time or price, not weather — the weather won't decide this one for you.
Coeur d'Alene
ID
- Clear days, August
- 75%
- Sample size
- n=248 days
- Avg high
- 85°F
- Early August (1st–15th)
- 82%
- Late August (16th–end)
- 69%
- Rain frequency
- 12% of days
Phoenix
AZ
- Clear days, August
- 76%
- Sample size
- n=248 days
- Avg high
- 106°F
- Early August (1st–15th)
- 76%
- Late August (16th–end)
- 76%
- Rain frequency
- 13% of days
Frequently asked
Is Coeur d'Alene or Phoenix warmer in August?
Phoenix runs warmer by day in August. Coeur d'Alene averages highs of 85°F (highs n=248 days); Phoenix averages highs of 106°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Coeur d'Alene or Phoenix in August?
Days with measurable rain: Coeur d'Alene 12%, Phoenix 13% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in August, Coeur d'Alene or Phoenix?
Essentially a tie in August: Coeur d'Alene is 75% clear historically, Phoenix is 76% clear (8-year ERA5 average) — within the noise. Avg high 85°F vs 106°F. Pick based on flight time or price, not weather — the weather won't decide this one for you.
Compare Coeur d'Alene vs Phoenix 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 forecast for any destination is on its own page and may differ from the long-run average. Data from Open-Meteo.