Weather archive in Onon

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
2026 August 18, Tuesday	08	13.1 56	684.1 26.93 912.06 912.06	761.4 29.98 1015.12 1015.12	0.3 0.01 0.4 0.4	100	Wind blowing from the south	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)			100%. 10/10. 8 oktas	Rain, not freezing, continuous, slight at time of observation.	Shower(s).	Shower(s).	12.7 55		No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	100%. 10/10. 8 oktas	600-1000 1968-3281	Altostratus opacus or Nimbostratus.		20.0 12.4	13.1 56	28.0 1.1	12
	05	13.1 56	683.8 26.92 911.66 911.66	761.0 29.96 1014.58 1014.58	0.4 0.02 0.53 0.53	100	Wind blowing from the north-east	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	Rain shower(s), moderate or heavy.	Shower(s).	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	50.0 31.1	13.1 56
	02	15.4 60	683.4 26.91 911.13 911.13	759.8 29.91 1012.98 1012.98	0.5 0.02 0.67 0.67	99	Wind blowing from the south	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)			50%. 5/10. 4 oktas						No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	40%. 4/10. 3 oktas	2500 or more, or no clouds. 8202 or more, or no clouds.	Altocumulus castellanus or floccus.	Cirrus uncinus or fibratus, or both, progressively invading the sky; they generally thicken as a whole.	50.0 31.1	15.2 59
August 17, Monday	23	15.7 60	682.9 26.89 910.46 910.46	759.2 29.89 1012.18 1012.18	0.4 0.02 0.53 0.53	98	Wind blowing from the south-southeast	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)			50%. 5/10. 4 oktas						Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	20–30%. 2/10–3/10. 2 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	Cirrus uncinus or fibratus, or both, progressively invading the sky; they generally thicken as a whole.	50.0 31.1	15.4 60
	20	18.0 64	682.5 26.87 909.93 909.93		0.7 0.03 0.93 0.93	80	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					22.1 72	Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	50%. 5/10. 4 oktas	600-1000 1968-3281	Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels.	Cirrus uncinus or fibratus, or both, progressively invading the sky; they generally thicken as a whole.	50.0 31.1	14.4 58
	17	21.8 71	681.8 26.84 908.99 908.99		-0.4 -0.02 -0.53 -0.53	54	Wind blowing from the east-southeast	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			50%. 5/10. 4 oktas						Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	40%. 4/10. 3 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	50.0 31.1	12.1 54
	14	20.2 68	682.2 26.86 909.53 909.53	757.2 29.81 1009.52 1009.52	-0.1 -0 -0.13 -0.13	64	Wind blowing from the east	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas						Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	50.0 31.1	13.2 56
	11	17.4 63	682.3 26.86 909.66 909.66	758.0 29.84 1010.58 1010.58	6.2 0.24 8.27 8.27	78	Wind blowing from the east	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas						Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	1000-1500 3281-4921	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	50.0 31.1	13.5 56
	08	13.8 57	676.1 26.62 901.39 901.39	758.9 29.88 1011.78 1011.78	-5.0 -0.2 -6.67 -6.67	99	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				11.4 53		Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	60%. 6/10. 5 oktas	600-1000 1968-3281	Altocumulus translucidus at a single level.	Cirrocumulus alone, or Cirrocumulus accompanied by Cirrus or Cirrostratus or both, but Cirrocumulus is predominant.	50.0 31.1	13.6 56	0.7 0.03	12