Weather on December 29 at Mount Rainier

Mount Rainier National Park

WAPacific West5,400 ft elevation
Avg High46°F
Avg Low36°F
Warmest202353°F
Coldest199018°F

Based on 55 years of data from Seattle, WA

Elevation Note: Mount Rainier sits at 5,400 ft. Expect temperatures 19°F cooler than the data shown below, which comes from Seattle, WA at a lower elevation.

Planning Your Visit

December 29th in Mount Rainier National Park (via Seattle, WA) typically brings chilly winter weather, with average highs around 46°F and lows near 36°F. Over 55 years of records, the warmest December 29th was in 2023 (53°F average), while the coldest was 1990 (18°F) — a 35°F range across recorded history. Precipitation has occurred on 58% of recorded December 29th dates, with snow falling 7% of the time (heaviest snowfall: 11"). 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 December 29th in Mount Rainier? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecipSnow
202545°F32°F0"--
202447°F40°F0.33"--
202362°F44°F0"--
202247°F40°F0.69"--
202131°F23°F0.1"--
202041°F34°F0.1"--
201953°F40°F0"--
201852°F45°F1.57"--
201755°F44°F3.48"--
201648°F39°F0.33"--
201546°F32°F0"--
201446°F35°F0"--
201346°F36°F0"--
201243°F38°F0.15"--
201151°F44°F0.56"--
201042°F35°F0"--
200943°F26°F0.08"--
200843°F37°F0.53"--
200744°F37°F0.23"--
200643°F28°F0"--
200549°F41°F0.71"--
200445°F37°F0.64"--
200342°F26°F0"--
200252°F37°F0.51"--
200150°F34°F0"--
200048°F34°F0.2"--
199942°F34°F0"--
199854°F48°F2.01"--
199753°F48°F0"0"
199650°F27°F6.99"11"
199551°F41°F1.3"0"
199445°F32°F0"0"
199344°F36°F0.03"0"
199249°F31°F0.3"1"
199147°F37°F0"0"
199024°F13°F0"0"
198947°F39°F0"0"
198850°F39°F1.96"0"
198745°F36°F0.05"0"
198650°F46°F2.11"0"
198544°F37°F0"0"
198441°F33°F2.21"2"
198343°F34°F2.41"0"
198242°F27°F0"0"
198143°F31°F0"0"
198051°F45°F0.74"0"
197950°F37°F0"0"
197828°F18°F0"0"
197744°F40°F0.43"0"
197652°F39°F0.08"0"
197555°F43°F0.64"0"
197443°F37°F0.25"0"
197344°F39°F0"0"
197242°F36°F0"0"
197136°F31°F0.64"3.8"

December 29 at Nearby Parks

Holiday Weather at Mount Rainier

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

Explore More at Mount Rainier

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December 29 Weather at Mount Rainier National Park - Historical Data