San Tan Valley in Fall

Over the season highs ease from about 100°F in early September to 69°F by late November.

Once humidity and wind are folded in, fall brings about 38 days that feel above 90°F and 0 that feel at or below 32°F.

How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.

The sky is clear or mostly clear about 75% of the time across fall.

San Tan Valley gets around 2.5 in of rain over 8 wet days across fall. The line is the day-by-day chance of measurable precipitation.

Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

Winds average 5 mph across fall.

Daylight runs from about 12 h 42 min in early September to 10 hours by late November. The lit band spans sunrise to sunset each day.

Average shortwave solar energy reaching the ground each day across fall, about 5.0 kWh/m².

Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.

Clear-sky midday UV across fall averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.

San Tan Valley sits at 33.2°N, 111.5°W, 1,516 ft above sea level, in United States. The nearest listed city is Queen Creek, 7.5 mi away.

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of San Tan Valley.