Weather on September 28 at Grand Canyon

Grand Canyon National Park

AZSouthwest7,000 ft elevation
Avg High72°F
Avg Low38°F
Warmest202465°F
Coldest198244°F

Based on 55 years of data from Flagstaff, AZ

Elevation Note: Grand Canyon sits at 7,000 ft. Expect temperatures 25°F cooler than the data shown below, which comes from Flagstaff, AZ at a lower elevation.

Planning Your Visit

September 28th in Grand Canyon National Park (via Flagstaff, AZ) typically brings pleasant fall weather, with average highs around 72°F and lows near 38°F — a 34°F daily swing. Over 55 years of records, the warmest September 28th was in 2024 (65°F average), while the coldest was 1982 (44°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 18% of September 28th dates historically, with the wettest September 28th recording 1.04" of rain. The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.

The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.

Planning for September 28th in Grand Canyon? Great weather for outdoor activities.

Year by Year History

YearHighLowPrecipSnow
202557°F39°F1.04"0"
202486°F44°F0"0"
202375°F39°F0"0"
202273°F43°F0"0"
202161°F49°F0"0"
202072°F44°F0"0"
201963°F50°F0"0"
201878°F39°F0"0"
201768°F29°F0"0"
201666°F40°F0.71"0"
201576°F46°F0"0"
201460°F37°F0.1"0"
201365°F25°F0"0"
201273°F35°F0"0"
201179°F38°F0"0"
201083°F42°F0"0"
200979°F39°F0"0"
200875°F42°F0"0"
200766°F41°F0"0"
200675°F33°F0"0"
200572°F35°F0"0"
200470°F37°F0.13"0"
200381°F40°F0"--
200264°F37°F0.08"--
200178°F38°F0"--
200078°F41°F0"--
199960°F36°F0"--
199870°F36°F0.15"--
199773°F42°F0"--
199667°F35°F0"--
199561°F49°F----
199478°F38°F0"0"
199380°F34°F0"0"
199278°F36°F0"0"
199174°F43°F0"0"
199068°F34°F0"0"
198979°F32°F0"0"
198873°F33°F0"0"
198773°F36°F0"0"
198660°F34°F0"0"
198562°F39°F0.76"0"
198473°F34°F0"0"
198369°F41°F0.2"0"
198255°F32°F0"0"
198176°F43°F0"0"
198077°F43°F0.03"0"
197974°F37°F0"0"
197879°F41°F0.05"0"
197775°F48°F0"0"
197670°F37°F0"0"
197575°F40°F0"0"
197473°F24°F0"0"
197379°F29°F0"0"
197271°F36°F0"0"
197164°F28°F0"0"

September 28 at Nearby Parks

Holiday Weather at Grand Canyon

Official NPS WebsiteVisit nps.gov/grca for park information, alerts, and reservations

Explore More at Grand Canyon

See historical weather for other dates

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