Weather archive in Portland (airport), Maine

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
2024 December 19, Thursday	13	4.4 40	763.4 30.06 1017.78 1017.78	765.0 30.12 1019.92 1019.92	0.3 0.01 0.4 0.4	55	Wind blowing from the west-northwest	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas				0.0 32	5.6 42			1000-1500 3281-4921			16.0 9.9	-3.9 25
	10	3.9 39	763.1 30.04 1017.38 1017.38	764.5 30.1 1019.25 1019.25	2.8 0.11 3.73 3.73	67	Wind blowing from the west-northwest	Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft)			20–30%. 2/10–3/10. 2 oktas								300-600 984-1968			16.0 9.9	-1.7 29
	07	1.1 34	760.3 29.93 1013.65 1013.65	761.8 29.99 1015.65 1015.65	1.5 0.06 2 2	97	Wind blowing from the west	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			20–30%. 2/10–3/10. 2 oktas				1.1 34	8.9 48			1000-1500 3281-4921			16.0 9.9	0.6 33	1.0 0.04	6
	04	2.2 36	758.8 29.87 1011.65 1011.65	760.2 29.93 1013.52 1013.52	0.0 0 0 0	100	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			16.0 9.9	2.2 36	1.0 0.04	3
	01	2.8 37	758.8 29.87 1011.65 1011.65	760.3 29.93 1013.65 1013.65	-2.1 -0.08 -2.8 -2.8	96	Wind blowing from the north-west	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			100%. 10/10. 8 oktas	Rain, not freezing, continuous, slight at time of observation.			-1.0 30	6.1 43			600-1000 1968-3281			11.0 6.8	2.2 36	7.0 0.28	6
December 18, Wednesday	22	4.4 40	760.9 29.96 1014.45 1014.45	762.2 30.01 1016.18 1016.18	-1.5 -0.06 -2 -2	86	Wind blowing from the west	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			100%. 10/10. 8 oktas	Rain, not freezing, continuous, slight at time of observation.							600-1000 1968-3281			9.0 5.6	2.2 36	1.0 0.04	3
	19	6.1 43	762.4 30.02 1016.45 1016.45	763.7 30.07 1018.18 1018.18	-0.5 -0.02 -0.67 -0.67	80	Calm, no wind	Calm			100%. 10/10. 8 oktas				-1.0 30	8.9 48			2500 or more, or no clouds. 8202 or more, or no clouds.			16.0 9.9	2.8 37
	16	6.7 44	762.9 30.04 1017.12 1017.12	764.2 30.09 1018.85 1018.85	-1.0 -0.04 -1.33 -1.33	68	Wind blowing from the south	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas								1500-2000 4921-6562			16.0 9.9	1.1 34
	13	8.9 48	763.9 30.07 1018.45 1018.45	765.2 30.13 1020.18 1020.18	-2.1 -0.08 -2.8 -2.8	46	Wind blowing from the west-southwest	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			50%. 5/10. 4 oktas				-1.7 29	8.9 48			1000-1500 3281-4921			16.0 9.9	-2.2 28