Weather archive in Portland (airport), Maine

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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
2026 September 4, Friday	20	22.8 73	755.0 29.72 1006.58 1006.58	756.3 29.78 1008.32 1008.32	0.5 0.02 0.67 0.67	55	Wind blowing from the north-northwest	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas				17.2 63	26.7 80			2500 or more, or no clouds. 8202 or more, or no clouds.			16.0 9.9	13.3 56
	17	26.7 80	754.5 29.7 1005.92 1005.92	755.8 29.76 1007.65 1007.65	0.0 0 0 0	47	Wind blowing from the north-west	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)	8 m/s 29 km/h 18 miles/hour 16 knots 5 Bft		70 – 80%. 7/10 – 8/10. 6 oktas								2000-2500 6562-8202			16.0 9.9	14.4 58
	14	25.6 78	754.5 29.7 1005.92 1005.92	756.0 29.76 1007.92 1007.92	-1.3 -0.05 -1.73 -1.73	67	Wind blowing from the south-southwest	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas				17.2 63	25.6 78			1000-1500 3281-4921			16.0 9.9	18.9 66
	11	23.9 75	755.8 29.76 1007.65 1007.65	757.1 29.81 1009.38 1009.38	-0.3 -0.01 -0.4 -0.4	71	Calm, no wind	Calm			20–30%. 2/10–3/10. 2 oktas								300-600 984-1968			16.0 9.9	18.3 65
	08	18.3 65	756.1 29.77 1008.05 1008.05	757.3 29.81 1009.65 1009.65	0.3 0.01 0.4 0.4	93	Wind blowing from the north	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			100%. 10/10. 8 oktas	Mist.			16.7 62	18.9 66			100-200 328-656			4.8 3.0	17.2 63
	05	17.8 64	755.8 29.76 1007.65 1007.65	757.1 29.81 1009.38 1009.38	-0.8 -0.03 -1.07 -1.07	96	Wind blowing from the west	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			100%. 10/10. 8 oktas	Mist.							50-100 164-328			1.6 1.0	17.2 63
	02	17.2 63	756.6 29.79 1008.72 1008.72	758.0 29.84 1010.58 1010.58	-1.0 -0.04 -1.33 -1.33	97	Calm, no wind	Calm			100%. 10/10. 8 oktas				16.1 61	18.9 66			300-600 984-1968			16.0 9.9	16.7 62
September 3, Thursday	23	18.3 65	757.6 29.83 1010.05 1010.05	758.9 29.88 1011.78 1011.78	0.0 0 0 0	90	Wind blowing from the south-west	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	16.7 62
September 3, Thursday	20	18.3 65	757.6 29.83 1010.05 1010.05	759.0 29.88 1011.92 1011.92	-0.5 -0.02 -0.67 -0.67	87	Calm, no wind	Calm			100%. 10/10. 8 oktas				16.1 61	18.9 66			300-600 984-1968			16.0 9.9	16.1 61