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SunnyDays

ERA5 almanac comparison — 8 years of real data

Puerto Vallarta vs Scottsdale Desert Ridge: weather in March

Puerto Vallarta is the clear winner for sun in March: 99% of days historically clear versus just 46% in Scottsdale Desert Ridge — a 53-point gap across 8 years of ERA5 data. Scottsdale Desert Ridge also sees measurably more rain than Puerto Vallarta this month (16% vs 0% of days). This isn't close.

What you are reading: 8-year historical averages, not a forecast. Either destination can still surprise you this specific March. For this week’s actual forecast, each destination links to its live page below.

Puerto Vallarta

MX

Clear days, March
99%
Sample size
n=248 days
Avg high
80°F
Early March (1st–15th)
98%
Late March (16th–end)
99%
Rain frequency
0% of days

Scottsdale Desert Ridge

AZ

Clear days, March
46%
Sample size
n=248 days
Avg high
74°F
Early March (1st–15th)
37%
Late March (16th–end)
55%
Rain frequency
16% of days

Compare Puerto Vallarta vs Scottsdale Desert Ridge 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.