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Weather in Summit, AZ · National Weather Service + NOAA

Summit has hot summers

Summit has mild winters and hot summers, with very little rain. A typical July afternoon reaches 100°, a January night drops to 38°, and snow is almost unheard of. Normal November highs come to 76°, and lows to 44°.

Winter 68°/39°Spring 84°/51°Summer 100°/71°Fall 86°/55°
Right now
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Sunrise 8:41 am · sunset 7:33 pm

Getting the latest forecast from the National Weather Service…

What stands out about Summit’s weather

Read from 30 years of NOAA records. Each one opens the full story on the Climate page.

Climate →
Hot summersJuly afternoons average 100°, hotter than 99% of U.S. towns.Snow is rareAbout 0.1 inches in a normal year, so most winters see none.A dry climateJust 12 inches of rain and melted snow a year, less than 97% of U.S. towns.Plenty of 90° daysAbout 158 days a year reach 90°.
A normal year

Where today sits in Summit’s year

Typical highs and lows month by month, from 30 years of NOAA records.

Full climate →
Winter
68° / 39°
Snow is rare
Spring
84° / 51°
Last frost around Feb 5
Summer
100° / 71°
158 days reach 90° in a normal year
Fall now
86° / 55°
First frost around Dec 9
37 daysuntil the usual first frost (Dec 9)
Best months to be outside
FebMarAprNov
Highs of 62–84° and lows of 40° or more
How much snow does Summit get?Almost none.When is it wettest?July, with 2.4 inches.Is it warmer than it used to be?+1.4° vs. the 20th century.

Weather talk

Road reports, first frosts and storm memories from neighbors in Summit.

Town Square →
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Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Summit itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Tucson Intl Airport, AZ (5 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.