Seatac January Weather Averages Washington, United States of America

January Weather Averages for Seatac

High Temp	7°C	45°F
Low Temp	2°C	36°F
Avg Temp	4°C	40°F
Sunshine Hours	108 hours
Rainfall	176.26 mm	6.94 In
Rain days	12 days
Pressure	1019 mb	31 In

Seatac January Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	4°C / 39°F	0°C / 32°F	2°C / 35°F	136 hours	137.00 mm / 5.39 In	16 days	1015 mb / 30 In
2009	6°C / 43°F	0°C / 33°F	3°C / 37°F	173 hours	189.39 mm / 7.46 In	10 days	1025 mb / 31 In
2010	8°C / 47°F	4°C / 40°F	6°C / 43°F	130 hours	176.60 mm / 6.95 In	13 days	1011 mb / 30 In
2011	7°C / 44°F	2°C / 35°F	4°C / 39°F	91 hours	199.90 mm / 7.87 In	12 days	1022 mb / 31 In
2012	6°C / 42°F	1°C / 34°F	3°C / 38°F	84 hours	182.18 mm / 7.17 In	13 days	1019 mb / 31 In
2013	6°C / 43°F	0°C / 33°F	3°C / 37°F	170 hours	125.60 mm / 4.94 In	13 days	1023 mb / 31 In
2014	8°C / 47°F	2°C / 35°F	4°C / 40°F	183 hours	127.10 mm / 5.00 In	9 days	1023 mb / 31 In
2015	9°C / 49°F	3°C / 38°F	6°C / 42°F	165 hours	160.41 mm / 6.32 In	7 days	1023 mb / 31 In
2016	8°C / 46°F	2°C / 36°F	5°C / 41°F	120 hours	174.19 mm / 6.86 In	14 days	1015 mb / 30 In
2017	5°C / 41°F	-1°C / 31°F	2°C / 35°F	141 hours	102.37 mm / 4.03 In	8 days	1017 mb / 31 In
2018	8°C / 47°F	4°C / 39°F	6°C / 43°F	64 hours	268.68 mm / 10.58 In	22 days	1018 mb / 31 In
2019	9°C / 48°F	3°C / 37°F	6°C / 42°F	151 hours	114.70 mm / 4.52 In	8 days	1018 mb / 31 In
2020	7°C / 44°F	3°C / 38°F	5°C / 42°F	14 hours	330.40 mm / 13.01 In	29 days	1015 mb / 30 In
2021	8°C / 46°F	3°C / 38°F	5°C / 42°F	62 hours	278.26 mm / 10.95 In	12 days	1017 mb / 31 In
2022	8°C / 46°F	2°C / 35°F	5°C / 40°F	105 hours	228.00 mm / 8.98 In	12 days	1021 mb / 31 In
2023	7°C / 45°F	3°C / 37°F	5°C / 40°F	28 hours	37.60 mm / 1.48 In	8 days	1016 mb / 30 In
2024	6°C / 43°F	2°C / 36°F	4°C / 39°F	53 hours	184.86 mm / 7.28 In	13 days	1014 mb / 30 In
2025	5°C / 42°F	2°C / 35°F	3°C / 38°F	110 hours	116.16 mm / 4.57 In	6 days	1028 mb / 31 In

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