Scottsdale weather in December
December in Scottsdale: nice, a little rain — a great time to visit.
#8 of 12 months in Scottsdale · #256 of 604 destinations to visit in December · comfort 73/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Scottsdale climate normals — December
| Daytime high | 19°C / 66°F | 😎 nice |
|---|---|---|
| Nighttime low | 6°C / 43°F | |
| Feels like (high) | 16°C / 61°F | |
| Rainfall | 36 mm / 1.4 in | 🌦 some rain |
| Rainy days | 4 days | |
| Humidity | 58% | 🍃 comfortable |
| Dew point | 2°C / 36°F | |
| Sunshine | 8 h/day | |
| Daylight | 10 h | |
| Wind | 12 km/h / 7 mph | |
| Air quality (US AQI) | 54 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Scottsdale in December — FAQ
- Is December a good time to visit Scottsdale?
- December in Scottsdale: nice, a little rain — a great time to visit. It ranks #8 of 12 months for Scottsdale on SeasonMap's comfort score (73/100).
- What is the weather like in Scottsdale in December?
- In December, Scottsdale averages a daily high of 18.9°C and a low of 6.1°C, with about 35.7 mm of rain over roughly 4.4 rainy days.
- What is the air quality in Scottsdale in December?
- Scottsdale has a mean US Air Quality Index of about 54 in December.