Chandler, AZ Climate Guide
Chandler has a hot desert climate in the southeast corner of the Phoenix metro area. Sonoran Desert sunshine, very low humidity, and extreme summer heat define the year.
Climate type: Hot desert (Köppen BWh)
Chandler Climate Overview
Average highs stay at or above 100°F from June through September and peak near 106°F in July. Winters are mild, with January averaging a 67°F high and a low near 42°F. Annual rainfall is only about 8 inches.
The North American Monsoon brings thunderstorms, dust storms, and flash flooding from July through September. The rest of the year is dominated by dry, sunny high pressure, and the less-developed East Valley cools off more at night than central Phoenix.
Chandler Weather by Season
spring
Spring starts ideal — March averages a 78°F high under clear skies, and the Sonoran Desert wildflower bloom peaks. By late April highs are already climbing past 85°F and the dry season is well underway.
summer
Summers are extreme. Average highs stay at or above 100°F from June through September and peak at 106°F in July, with overnight lows in the low 80s°F. The North American Monsoon brings evening thunderstorms, downpours and dust storms from July onward.
fall
Fall cools slowly. September still averages 100°F, but October drops to 88°F and November to 75°F. By late fall the evenings turn crisp and the East Valley's outdoor season begins in earnest.
winter
Winters are mild, dry and sunny, with December and January highs in the mid-to-upper 60s°F and lows near 42°F. Rain is infrequent and frost is limited to a few clear mornings in the outlying valley.
Chandler Average Monthly Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 67° | 71° | 78° | 86° | 95° | 104° | 106° | 104° | 100° | 88° | 75° | 66° |
| Low °F | 42° | 45° | 50° | 57° | 65° | 74° | 81° | 80° | 74° | 61° | 49° | 42° |
Best Time to Visit Chandler
November through April. Warm, sunny days in the 60s-80s°F, cool nights, minimal rain, and none of the summer heat. February and March are the busiest months for Cactus League spring training and desert hiking.
Severe Weather Risks
- Extreme heat
- Monsoon thunderstorms
- Dust storms (haboobs)
- Flash flooding
- Wildfires
Weather Facts About Chandler
- >Chandler sits in the Sonoran Desert at roughly 1,200 feet in the southeast corner of the Phoenix metro, so its daytime highs track central Phoenix almost exactly.
- >Average highs stay at or above 100°F for four straight months, June through September.
- >The less-developed East Valley cools off more at night than downtown Phoenix, where pavement and buildings hold the day's heat well past midnight.
- >Annual rainfall is only about 8 inches, and roughly half of it arrives in a handful of monsoon thunderstorms between July and September.
- >Haboobs — dust walls thousands of feet tall — can cross the East Valley ahead of monsoon storms and cut visibility to near zero within minutes.
Chandler Weather FAQ
What is the climate in Chandler, Arizona?
Chandler has a hot desert climate (Köppen BWh): extreme summer heat, mild sunny winters, very low humidity, and only about 8 inches of rain a year. July averages a 106°F high and an 81°F low, while January averages a 67°F high and a 42°F low.
What is Chandler weather like year round?
Average highs climb past 100°F by June and stay there through September, peaking at 106°F in July. October through April is the mild half of the year, with January averaging a 67°F high and a low near 42°F. Rain is scarce in every single month.
How hot does Chandler get in summer?
July averages a high of 106°F, and stretches above 110°F happen in most summers. Overnight lows average in the low 80s°F in July and August, so the heat barely relents after dark and outdoor activity is genuinely dangerous in the afternoon.
How cold does Chandler get in winter?
December and January are the coolest months, averaging highs of 66-67°F and lows near 42°F. Frost occurs on a few clear mornings in the outlying East Valley most winters, but hard freezes are rare and brief.
What is monsoon season in Chandler?
The North American Monsoon runs from mid-June through September. It brings sudden late-afternoon and evening thunderstorms, heavy downpours, lightning, flash flooding in normally dry washes, and the dust storms known as haboobs.
Does it rain a lot in Chandler?
No. Annual rainfall is only about 8 inches, split between gentle Pacific storms in winter and intense monsoon thunderstorms in July, August and September. Long stretches pass with no measurable rain at all.
Is Chandler weather different from Phoenix?
Only slightly. Chandler sits about 20 miles southeast of downtown Phoenix at a similar elevation, so daytime highs are nearly identical. The difference shows up overnight: the less-developed East Valley cools off a few degrees more than the urban core.
When is the best time to visit Chandler?
November through April. Warm sunny days, cool nights, almost no rain, and none of the summer heat. February and March are peak season for spring training baseball across the Valley and for hiking the surrounding desert preserves.