ERA5 almanac comparison — 8 years of real data
Coeur d'Alene vs Phoenix: weather in May
Phoenix is the clear winner for sun in May: 95% of days historically clear versus just 20% in Coeur d'Alene — a 75-point gap across 8 years of ERA5 data. Coeur d'Alene also sees measurably more rain than Phoenix this month (33% vs 2% of days). This isn't close.
Coeur d'Alene
ID
- Clear days, May
- 20%
- Sample size
- n=248 days
- Avg high
- 68°F
- Early May (1st–15th)
- 22%
- Late May (16th–end)
- 19%
- Rain frequency
- 33% of days
Phoenix
AZ
- Clear days, May
- 95%
- Sample size
- n=248 days
- Avg high
- 96°F
- Early May (1st–15th)
- 92%
- Late May (16th–end)
- 97%
- Rain frequency
- 2% of days
Frequently asked
Is Coeur d'Alene or Phoenix warmer in May?
Phoenix runs warmer by day in May. Coeur d'Alene averages highs of 68°F (highs n=248 days); Phoenix averages highs of 96°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Coeur d'Alene or Phoenix in May?
Coeur d'Alene is measurably wetter than Phoenix. Days with measurable rain: Coeur d'Alene 33%, Phoenix 2% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in May, Coeur d'Alene or Phoenix?
Phoenix is the clear winner for sun in May: 95% of days historically clear versus just 20% in Coeur d'Alene — a 75-point gap across 8 years of ERA5 data. Coeur d'Alene also sees measurably more rain than Phoenix this month (33% vs 2% of days). This isn't close.
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.