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Weather & Climate

Summit, Arizona, United States

Overview

Climate data and monthly weather averages for Summit.

Key Metrics

Annual Avg
19.8°C
Summer Avg
29.1°C
Winter Avg
10.3°C
Record High
44.8°C
Record Low
-8.1°C
Annual Precipitation
322.9 mm
Avg Humidity
38%
Summer Humidity
36%
Winter Humidity
45%

Monthly Averages

MonthHigh (°C)Avg (°C)Low (°C)Rain (mm)Humidity (%)Sunshine (h)Wind (kph)
Jan27.4°10°-6.5°24.546%11061.2
Feb30.2°11.2°-8.1°20.744%12650.4
Mar34.2°14.9°-3.4°1437%18551
Apr37.7°18.5°1.4°7.828%22155.5
May42.1°23.4°422%25450.8
Jun44.8°29.3°12.7°8.419%25045.1
Jul43.8°29.4°16.7°83.142%21440.7
Aug42.2°28.6°17.8°64.547%20234.3
Sep41.5°26.4°11.7°40.243%17743.3
Oct38.5°20.9°1.1°14.637%15851.7
Nov33.6°15°-5.2°14.439%11851.9
Dec28°9.7°-5.5°26.746%10157.8

Frequently Asked Questions

Sources: NASA POWER · Last updated: 2025

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