Weather on March 18 at Grand Canyon

Grand Canyon National Park

AZSouthwest7,000 ft elevation
Avg High52°F
Avg Low24°F
Warmest202651°F
Coldest198627°F

Based on 56 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

March 18th in Grand Canyon National Park (via Flagstaff, AZ) typically brings cool spring weather, with average highs around 52°F and lows near 24°F — a 28°F daily swing. Over 56 years of records, the warmest March 18th was in 2026 (51°F average), while the coldest was 1986 (27°F) — a 24°F range across recorded history. Precipitation has occurred on 27% of recorded March 18th dates, with snow falling 14% of the time (heaviest snowfall: 19.5"). Temperatures on this date have remained relatively stable over the past several decades.

Temperatures on this date have remained relatively stable over the past several decades.

Planning for March 18th in Grand Canyon? Bring layers as temperatures can vary throughout the day.

Year by Year History

YearHighLowPrecipSnow
202676°F27°F0"0"
202543°F28°F0"0"
202437°F32°F1.55"4.1"
202342°F21°F0"0"
202254°F17°F0"0"
202156°F24°F0"0"
202037°F26°F2.54"7"
201955°F23°F0"0"
201838°F23°F0.61"1.9"
201767°F29°F0"0"
201663°F25°F0"0"
201557°F39°F0"0"
201452°F20°F0"0"
201360°F26°F0"0"
201236°F20°F3.53"19.5"
201157°F29°F0"0"
201055°F23°F0"0"
200966°F26°F0"0"
200851°F20°F0"0"
200767°F28°F0"0"
200639°F23°F0"0"
200544°F27°F0"0"
200468°F25°F0"0"
200339°F29°F0.05"--
200236°F24°F0.58"--
200159°F22°F0"0"
200053°F24°F0"--
199956°F22°F0.03"--
199841°F21°F0.43"--
199761°F24°F0"--
199658°F25°F0"0"
199560°F28°F0"0"
199455°F32°F0.05"0"
199360°F32°F0.41"0"
199249°F24°F0"0"
199154°F15°F0"0"
199059°F20°F0"0"
198965°F26°F0"0"
198853°F20°F0"0"
198748°F20°F0"0"
198642°F12°F0.03"0"
198553°F23°F0.56"2.7"
198454°F23°F0"0"
198337°F25°F1.24"4.9"
198236°F22°F1.63"8.7"
198157°F22°F0"0"
198047°F17°F0"0"
197937°F19°F0"0"
197868°F23°F0"0"
197745°F14°F0"0"
197664°F26°F0"0"
197554°F21°F0"0"
197462°F33°F0"0"
197340°F23°F0.1"0.4"
197265°F22°F0"0"
197141°F20°F0"0"

March 18 at Nearby Parks

Holiday Weather at Grand Canyon

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