Weather archive in Seattle / Tacoma (airport)

To receive explanations, hover over the appropriate heading

Date / Local time		T	Po	P	Pa	U	DD	Ff	ff10	ff3	N	WW	W1	W2	Tn	Tx	Cl	Nh	H	Cm	Ch	VV	Td	RRR	tR	E	Tg	E'	sss
2025 December 9, Tuesday	13	10.0 50	752.5 29.63 1003.25 1003.25	765.4 30.13 1020.45 1020.45	-1.5 -0.06 -2 -2	71	Wind blowing from the south-east	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas								600-1000 1968-3281			16.0 9.9	5.0 41
	10	8.9 48	754.0 29.69 1005.25 1005.25	766.7 30.19 1022.18 1022.18	1.2 0.05 1.6 1.6	77	Wind blowing from the south-southwest	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			100%. 10/10. 8 oktas				8.3 47	12.8 55			600-1000 1968-3281			16.0 9.9	5.0 41	Trace of precipitation Trace of precipitation	6
	07	8.9 48	752.8 29.64 1003.65 1003.65	765.6 30.14 1020.72 1020.72	1.3 0.05 1.73 1.73	83	Wind blowing from the south	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas	Rain, not freezing, continuous, slight at time of observation.							300-600 984-1968			16.0 9.9	6.1 43	Trace of precipitation Trace of precipitation	3
	04	8.9 48	751.5 29.59 1001.92 1001.92	764.2 30.09 1018.85 1018.85	1.0 0.04 1.33 1.33	93	Wind blowing from the south	Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft)			100%. 10/10. 8 oktas				8.3 47	13.3 56			600-1000 1968-3281			16.0 9.9	7.8 46	4.0 0.16	6
	01	8.9 48	750.5 29.55 1000.58 1000.58	763.2 30.05 1017.52 1017.52	4.0 0.16 5.33 5.33	89	Wind blowing from the east-southeast	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			100%. 10/10. 8 oktas								600-1000 1968-3281			16.0 9.9	7.2 45	4.0 0.16	3
December 8, Monday	22	12.8 55	746.5 29.39 995.25 995.25	759.3 29.89 1012.32 1012.32	1.0 0.04 1.33 1.33	93	Wind blowing from the south-southwest	Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft)	14 m/s 50 km/h 31 mile/hour 27 knots 7 Bft		100%. 10/10. 8 oktas	Rain, not freezing, continuous, slight at time of observation.			9.4 49	12.8 55			200-300 656-984			11.0 6.8	11.7 53	13.0 0.51	6
	19	12.8 55	745.5 29.35 993.92 993.92	758.1 29.85 1010.72 1010.72	-0.7 -0.03 -0.93 -0.93	93	Wind blowing from the south-southwest	Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft)	13 m/s 47 km/h 29 miles/hour 25 knots 6 Bft		100%. 10/10. 8 oktas	Rain, not freezing, continuous, slight at time of observation.							200-300 656-984			9.0 5.6	11.7 53	9.0 0.35	3
	16	12.8 55	746.2 29.38 994.85 994.85	758.8 29.87 1011.65 1011.65	0.0 0 0 0	93	Wind blowing from the south-southwest	Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft)	14 m/s 50 km/h 31 mile/hour 27 knots 7 Bft		100%. 10/10. 8 oktas	Rain, not freezing, continuous, slight at time of observation.			8.3 47	13.3 56			200-300 656-984			12.0 7.5	11.7 53	7.0 0.28	6
	13	13.3 56	746.2 29.38 994.85 994.85	759.0 29.88 1011.92 1011.92	-2.1 -0.08 -2.8 -2.8	90	Wind blowing from the south	Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft)	15 m/s 54 km/h 34 mph 29 knots 7 Bft		100%. 10/10. 8 oktas	Rain, not freezing, continuous, slight at time of observation.							200-300 656-984			14.0 8.7	11.7 53	6.0 0.24	3