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Holiday weather history: Seattle (Sea-Tac Airport), WA

What Halloween, Thanksgiving, Christmas and New Year's Eve have actually been like at the Seattle (Sea-Tac Airport) weather station over 31 years (1995–2025). For this year's forecast, check the National Weather Service forecast for this spot.

Quick answer for Halloween: typical high 55°F, low 43°F; rain or snow in 55% of years; dry and 50–80°F in 35%.

🎃 Halloween weather in Seattle (Sea-Tac Airport) (Oct 31)

55°F / 43°Ftypical high / low

55%of years had rain or snow (≥0.01 in)

32%were soakers (≥0.25 in)

35%were dry with a high of 50–80°F

Warmest Halloween: 60°F (2015). Coldest high: 46°F (2003); coldest low 30°F (2003). Wettest: 1.30 in (2015). The median Halloween high was 52°F in 1995–2009 and 56°F in 2010–2025 (+4°F; single-day values swing a lot, so treat this as a hint, not a trend).

Year	Date	High	Low	Precip
2025	10-31	56°F	43°F	0.61 in
2024	10-31	51°F	41°F	0.37 in
2023	10-31	53°F	36°F	0.00 in
2022	10-31	54°F	46°F	0.64 in
2021	10-31	59°F	37°F	0.00 in
2020	10-31	57°F	41°F	0.00 in
2019	10-31	53°F	35°F	0.00 in
2018	10-31	58°F	49°F	0.02 in
2017	10-31	58°F	38°F	0.00 in
2016	10-31	57°F	49°F	0.66 in

🦃 Thanksgiving weather in Seattle (Sea-Tac Airport) (4th Thursday of Nov)

49°F / 38°Ftypical high / low

61%of years had rain or snow (≥0.01 in)

39%were soakers (≥0.25 in)

19%were dry with a high of 50–80°F

Warmest Thanksgiving: 59°F (2017). Coldest high: 39°F (2010); coldest low 28°F (2010). Wettest: 1.34 in (2009). The median Thanksgiving high was 49°F in 1995–2009 and 50°F in 2010–2025 (+1°F; single-day values swing a lot, so treat this as a hint, not a trend).

Year	Date	High	Low	Precip
2025	11-27	52°F	46°F	0.37 in
2024	11-28	43°F	32°F	0.00 in
2023	11-23	47°F	35°F	0.00 in
2022	11-24	52°F	36°F	0.00 in
2021	11-25	47°F	42°F	0.69 in
2020	11-26	50°F	43°F	0.00 in
2019	11-28	45°F	31°F	0.00 in
2018	11-22	52°F	45°F	0.48 in
2017	11-23	59°F	48°F	0.20 in
2016	11-24	51°F	46°F	0.66 in

🎄 Christmas Day weather in Seattle (Sea-Tac Airport) (Dec 25)

45°F / 36°Ftypical high / low

65%of years had rain or snow (≥0.01 in)

29%were soakers (≥0.25 in)

0%were dry with a high of 50–80°F

Warmest Christmas Day: 58°F (2005). Coldest high: 35°F (2017); coldest low 24°F (1995). Wettest: 1.06 in (1998); snowiest: 1.0 in (2017). The median Christmas Day high was 45°F in 1995–2009 and 44°F in 2010–2025 (-0°F; single-day values swing a lot, so treat this as a hint, not a trend).

Year	Date	High	Low	Precip	Snow
2025	12-25	44°F	37°F	0.23 in	0
2024	12-25	45°F	38°F	0.86 in	0
2023	12-25	48°F	41°F	0.59 in	0
2022	12-25	53°F	47°F	0.45 in	0
2021	12-25	37°F	31°F	0.13 in	0
2020	12-25	49°F	35°F	0.34 in	0
2019	12-25	44°F	33°F	0.00 in	0
2018	12-25	45°F	36°F	0.02 in	0
2017	12-25	35°F	31°F	0.09 in	1.0 in
2016	12-25	42°F	33°F	0.00 in	0

🎆 New Year's Eve weather in Seattle (Sea-Tac Airport) (Dec 31)

46°F / 36°Ftypical high / low

55%of years had rain or snow (≥0.01 in)

19%were soakers (≥0.25 in)

3%were dry with a high of 50–80°F

Warmest New Year's Eve: 56°F (1996). Coldest high: 31°F (2021); coldest low 21°F (2010). Wettest: 1.30 in (1996). The median New Year's Eve high was 48°F in 1995–2009 and 43°F in 2010–2025 (-5°F; single-day values swing a lot, so treat this as a hint, not a trend).

Year	Date	High	Low	Precip
2025	12-31	40°F	32°F	0.00 in
2024	12-31	45°F	35°F	0.00 in
2023	12-31	50°F	38°F	0.00 in
2022	12-31	49°F	43°F	0.01 in
2021	12-31	31°F	22°F	0.00 in
2020	12-31	50°F	46°F	0.35 in
2019	12-31	53°F	46°F	0.26 in
2018	12-31	43°F	34°F	0.00 in
2017	12-31	43°F	33°F	0.00 in
2016	12-31	38°F	29°F	0.03 in

More for Seattle (Sea-Tac Airport): first snow & white Christmas odds · earliest sunset.

Station: GHCN-Daily USW00024233 (47.445, -122.314). Precip is the 24-hour station total for the day, so rain may have fallen outside party hours.