Weather archive in Portland (airport), Washington

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 15, Monday	10	15.0 59	759.8 29.91 1012.98 1012.98	760.6 29.94 1014.05 1014.05	-0.5 -0.02 -0.67 -0.67	78	Wind blowing from the south	Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft)	12 m/s 43 km/h 27 miles/hour 23 knots 6 Bft		70 – 80%. 7/10 – 8/10. 6 oktas				7.8 46	15.0 59			600-1000 1968-3281			16.0 9.9	11.1 52	7.0 0.28	6
	07	10.0 50	760.3 29.93 1013.65 1013.65	761.0 29.96 1014.58 1014.58	-1.3 -0.05 -1.73 -1.73	96	Wind blowing from the east	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			100%. 10/10. 8 oktas	Rain, not freezing, continuous, slight at time of observation.							600-1000 1968-3281			9.0 5.6	9.4 49	6.0 0.24	3
	04	10.0 50	761.6 29.98 1015.38 1015.38	762.2 30.01 1016.18 1016.18	-1.0 -0.04 -1.33 -1.33	93	Wind blowing from the east	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			100%. 10/10. 8 oktas	Rain, not freezing, continuous, moderate at time of observation.			9.4 49	10.6 51			1000-1500 3281-4921			11.0 6.8	8.9 48	10.0 0.39	6
	01	9.4 49	762.6 30.02 1016.72 1016.72	763.3 30.05 1017.65 1017.65	0.0 0 0 0	97	Wind blowing from the north-east	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			100%. 10/10. 8 oktas	Rain, not freezing, continuous, heavy at time of observation.							1000-1500 3281-4921			6.0 3.7	8.9 48	3.0 0.12	3
December 14, Sunday	22	10.0 50	762.6 30.02 1016.72 1016.72	763.1 30.04 1017.38 1017.38	-0.3 -0.01 -0.4 -0.4	89	Calm, no wind	Calm			100%. 10/10. 8 oktas				6.1 43	10.6 51			1000-1500 3281-4921			16.0 9.9	8.3 47	Trace of precipitation Trace of precipitation	6
	19	10.6 51	762.9 30.04 1017.12 1017.12	763.6 30.06 1018.05 1018.05	0.3 0.01 0.4 0.4	86	Wind blowing from the east	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas								1000-1500 3281-4921			16.0 9.9	8.3 47
	16	10.6 51	762.6 30.02 1016.72 1016.72	763.1 30.04 1017.38 1017.38	-1.0 -0.04 -1.33 -1.33	83	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas				6.1 43	10.6 51			50-100 164-328			16.0 9.9	7.8 46	0.3 0.01	6
	13	9.4 49	763.6 30.06 1018.05 1018.05	764.2 30.09 1018.85 1018.85	-0.5 -0.02 -0.67 -0.67	86	Calm, no wind	Calm			100%. 10/10. 8 oktas								200-300 656-984			16.0 9.9	7.2 45	0.3 0.01	3
	10	7.8 46	764.1 30.08 1018.72 1018.72	764.6 30.1 1019.38 1019.38	1.2 0.05 1.6 1.6	93	Wind blowing from the east-southeast	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			100%. 10/10. 8 oktas	Rain, not freezing, continuous, slight at time of observation.			5.6 42	7.8 46			200-300 656-984			16.0 9.9	6.7 44	0.5 0.02	6