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 7, Sunday	16	13.9 57	765.1 30.12 1020.05 1020.05	765.7 30.15 1020.85 1020.85	1.2 0.05 1.6 1.6	74	Wind blowing from the south-west	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas				10.0 50	15.0 59			300-600 984-1968			16.0 9.9	9.4 49	Trace of precipitation Trace of precipitation	6
	13	13.3 56	763.9 30.07 1018.45 1018.45	764.4 30.09 1019.12 1019.12	1.8 0.07 2.4 2.4	87	Wind blowing from the south-southwest	Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft)	11 m/s 40 km/h 25 miles/hour 21 mile/hour 6 Bft		70 – 80%. 7/10 – 8/10. 6 oktas								300-600 984-1968			16.0 9.9	11.1 52	Trace of precipitation Trace of precipitation	3
	10	11.7 53	762.1 30 1016.05 1016.05	762.8 30.03 1016.98 1016.98	-0.3 -0.01 -0.4 -0.4	86	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	Drizzle, not freezing, continuous, slight at time of observation.			9.4 49	11.7 53			300-600 984-1968			9.0 5.6	9.4 49	0.8 0.03	6
	07	10.0 50	762.4 30.02 1016.45 1016.45	763.0 30.04 1017.25 1017.25	-0.9 -0.04 -1.2 -1.2	89	Wind blowing from the south-east	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			100%. 10/10. 8 oktas	Drizzle, not freezing, continuous, slight at time of observation.							300-600 984-1968			11.0 6.8	8.3 47	0.8 0.03	3
	04	10.0 50	763.3 30.05 1017.65 1017.65	763.9 30.07 1018.45 1018.45	-0.8 -0.03 -1.07 -1.07	96	Wind blowing from the south-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, slight at time of observation.			10.0 50	13.3 56			300-600 984-1968			11.0 6.8	9.4 49	4.0 0.16	6
	01	10.6 51	764.1 30.08 1018.72 1018.72	764.8 30.11 1019.65 1019.65	-0.8 -0.03 -1.07 -1.07	89	Wind blowing from the south-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.							1500-2000 4921-6562			16.0 9.9	8.9 48	0.3 0.01	3
December 6, Saturday	22	10.6 51	764.9 30.11 1019.78 1019.78	765.5 30.14 1020.58 1020.58	-0.2 -0.01 -0.27 -0.27	89	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				10.6 51	12.2 54			300-600 984-1968			16.0 9.9	8.9 48
	19	11.1 52	765.1 30.12 1020.05 1020.05	765.8 30.15 1020.98 1020.98	0.2 0.01 0.27 0.27	89	Wind blowing from the east-southeast	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			100%. 10/10. 8 oktas								300-600 984-1968			16.0 9.9	9.4 49
	16	11.7 53	764.9 30.11 1019.78 1019.78	765.4 30.13 1020.45 1020.45	0.3 0.01 0.4 0.4	86	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas				10.6 51	13.3 56			600-1000 1968-3281			16.0 9.9	9.4 49	Trace of precipitation Trace of precipitation	6