Weather archive in Lang Son

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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 February 17, Tuesday	10	18.3 65	741.0 29.17 987.92 987.92	764.2 30.09 1018.85 1018.85	2.3 0.09 3.07 3.07	83	Wind blowing from the north	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			100%. 10/10. 8 oktas	Mist.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	100%. 10/10. 8 oktas	300-600 984-1968			4.0 2.5	15.4 60
	07	19.1 66	738.7 29.08 984.85 984.85	761.8 29.99 1015.65 1015.65	1.4 0.06 1.87 1.87	94	Calm, no wind	Calm			100%. 10/10. 8 oktas	Rain (not freezing) not falling as shower(s).	Rain.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	18.7 66		Stratus fractus or Cumulus fractus of bad weather, or both (pannus), usually below Altostratus or Nimbostratus.	40%. 4/10. 3 oktas	300-600 984-1968	Altostratus opacus or Nimbostratus.		10.0 6.2	18.1 65	0.3 0.01	12
	04	19.0 66	737.3 29.03 982.99 982.99	760.3 29.93 1013.65 1013.65	-0.2 -0.01 -0.27 -0.27	96	Calm, no wind	Calm			100%. 10/10. 8 oktas	Rain, not freezing, continuous, slight at time of observation.	Rain.	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Stratus fractus or Cumulus fractus of bad weather, or both (pannus), usually below Altostratus or Nimbostratus.	70 – 80%. 7/10 – 8/10. 6 oktas	300-600 984-1968	Altostratus opacus or Nimbostratus.		4.0 2.5	18.3 65
	01	18.8 66	737.5 29.04 983.25 983.25	760.6 29.94 1014.05 1014.05	0.6 0.02 0.8 0.8	94	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas						Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	70 – 80%. 7/10 – 8/10. 6 oktas	300-600 984-1968			10.0 6.2	17.8 64
February 16, Monday	22	19.3 67	736.9 29.01 982.45 982.45	760.0 29.92 1013.25 1013.25	1.2 0.05 1.6 1.6	90	Calm, no wind	Calm			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas						Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	300-600 984-1968			10.0 6.2	17.6 64
	19	22.5 73	735.7 28.96 980.85 980.85	758.4 29.86 1011.12 1011.12	0.4 0.02 0.53 0.53	77	Calm, no wind	Calm			no clouds no clouds no clouds					27.4 81						10.0 6.2	18.2 65
	16	26.9 80	735.3 28.95 980.32 980.32	757.7 29.83 1010.18 1010.18	-1.0 -0.04 -1.33 -1.33	54	Calm, no wind	Calm			no clouds no clouds no clouds											15.0 9.3	16.8 62
	13	26.3 79	736.3 28.99 981.65 981.65	758.8 29.87 1011.65 1011.65	-2.1 -0.08 -2.8 -2.8	55	Wind blowing from the west	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			20–30%. 2/10–3/10. 2 oktas						Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	20–30%. 2/10–3/10. 2 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	15.0 9.3	16.6 62
	10	22.7 73	738.4 29.07 984.45 984.45	761.3 29.97 1014.98 1014.98	0.9 0.04 1.2 1.2	74	Wind blowing from the west	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)			20–30%. 2/10–3/10. 2 oktas						Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	20–30%. 2/10–3/10. 2 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	15.0 9.3	17.9 64