Weather on March 9 at Gateway Arch

Gateway Arch National Park

MOMidwest450 ft elevation
Avg High56°F
Avg Low35°F
Warmest197471°F
Coldest199625°F

Based on 55 years of data from St. Louis, MO

Planning Your Visit

March 9th in Gateway Arch National Park (via St. Louis, MO) typically brings cool spring weather, with average highs around 56°F and lows near 35°F. Over 55 years of records, the warmest March 9th was in 1974 (71°F average), while the coldest was 1996 (25°F) — a 46°F range across recorded history. Rain or other precipitation has occurred on about 29% of March 9th dates historically, with the wettest March 9th recording 2.74" of rain. The last decade has been 7.6°F warmer on this date compared to 20-30 years ago.

The last decade has been 7.6°F warmer on this date compared to 20-30 years ago.

Planning for March 9th in Gateway Arch? Bring layers as temperatures can vary throughout the day.

Year by Year History

YearHighLowPrecipSnow
202673°F41°F0"0"
202565°F26°F0"0"
202452°F39°F0"0"
202350°F42°F0.05"0"
202253°F30°F0"0"
202173°F41°F0"0"
202061°F53°F1.35"0"
201966°F39°F2.74"0"
201854°F35°F0"0"
201769°F49°F0"0"
201673°F60°F0.08"0"
201556°F30°F0"0"
201448°F31°F0"0"
201353°F30°F0.51"0"
201243°F28°F0"--
201148°F42°F1.32"--
201059°F38°F0.28"0"
200974°F35°F0"0"
200835°F19°F0"0"
200755°F30°F0"0"
200666°F46°F1.85"0"
200544°F29°F0"0"
200457°F37°F0"0"
200378°F17°F0"0"
200273°F36°F2.54"0"
200150°F26°F0"0"
200080°F48°F0"0"
199937°F30°F2.46"0"
199857°F32°F0.94"0"
199763°F46°F0.25"0"
199637°F12°F0"0"
199540°F20°F0"0"
199438°F32°F0"0"
199352°F26°F0"0"
199273°F56°F0.66"0"
199151°F22°F0"0"
199078°F60°F0"0"
198940°F28°F0"0"
198850°F32°F0"0"
198765°F20°F0"0"
198675°F45°F0"0"
198561°F44°F0"0"
198441°F23°F0"0"
198338°F28°F0"0"
198252°F20°F0"0"
1980--33°F0"0"
197943°F31°F0.03"0"
197832°F25°F0"--
197776°F46°F0"0"
197650°F38°F0"0"
197530°F21°F0"0"
197482°F59°F0.03"0"
197368°F38°F0.58"0"
197256°F29°F0"--
197136°F--0"--

March 9 at Nearby Parks

Holiday Weather at Gateway Arch

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

Explore More at Gateway Arch

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