Weather archive in Chok Chai

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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 20, Sunday	22	29.0 84	742.5 29.23 989.92 989.92	758.8 29.87 1011.65 1011.65		81	Calm, no wind	Calm			60%. 6/10. 5 oktas						No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	60%. 6/10. 5 oktas	2500 or more, or no clouds. 8202 or more, or no clouds.	Altocumulus translucidus at a single level.	Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole, but the continuous veil does not reach 45 degrees above the horizon.	10.0 6.2	25.5 78
	21	27.0 81				87	Wind blowing from the south	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							25.1 77	29.3 85							24.7 76
	20	26.7 80				87		Calm							25.1 77	29.3 85							24.3 76
	19	27.6 82	741.7 29.2 988.85 988.85	758.1 29.85 1010.72 1010.72	0.1 0 0.13 0.13	92	Calm, no wind	Calm			100%. 10/10. 8 oktas	State of sky on the whole unchanged.	Rain.	Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.		29.0 84	Stratocumulus other than Stratocumulus cumulogenitus.	50%. 5/10. 4 oktas	600-1000 1968-3281	Altocumulus translucidus at a single level.	Cirrostratus covering the whole sky.	10.0 6.2	26.2 79	19.0 0.75	12
	18	27.7 82				79	Wind blowing from the east	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							25.1 77	29.7 85							23.7 75
	17	28.7 84				74	Wind blowing from the south	Calm							25.1 77	30.7 87							23.6 74
	16	28.5 83	741.6 29.2 988.72 988.72	757.9 29.84 1010.45 1010.45	-1.0 -0.04 -1.33 -1.33	86	Calm, no wind	Calm			100%. 10/10. 8 oktas	State of sky on the whole unchanged.	Rain.	Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.			Cumulus humilis or Cumulus fractus other than of bad weather, or both.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	600-1000 1968-3281	Altocumulus translucidus at a single level.	Cirrostratus covering the whole sky.	10.0 6.2	26.0 79	2.0 0.08	3
	15	28.0 82				80	Wind blowing from the west	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							25.1 77								24.2 76
	14	26.1 79	742.1 29.22 989.39 989.39	757.8 29.83 1010.32 1010.32			Wind blowing from the north-west	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							25.1 77									1.0 0.04	1
	13	27.0 81	742.6 29.24 990.05 990.05	759.1 29.89 1012.05 1012.05	-2.4 -0.09 -3.2 -3.2	89	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 during part of the appropriate period and covering 1/2 or less during part of the period.			Stratocumulus other than Stratocumulus cumulogenitus.	100%. 10/10. 8 oktas	300-600 984-1968			2.0 1.2	25.1 77	17.0 0.67	6
	12	27.0 81				86	Wind blowing from the south	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							25.1 77								24.4 76
	11	26.3 79	744.2 29.3 992.19 992.19	759.9 29.92 1013.12 1013.12			Wind blowing from the east-northeast	Calm							25.1 77									No precipitation No precipitation	1
	10	26.0 79	745.0 29.33 993.25 993.25	761.5 29.98 1015.25 1015.25	1.4 0.06 1.87 1.87	94	Calm, no wind	Calm			100%. 10/10. 8 oktas	Rain, not freezing, continuous, slight at time of observation.	Rain.	Rain.			Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	70 – 80%. 7/10 – 8/10. 6 oktas	600-1000 1968-3281	Altocumulus translucidus at a single level.	Cirrostratus covering the whole sky.	2.0 1.2	25.0 77	15.0 0.59	3
	09	25.1 77	744.4 29.31 992.45 992.45	760.1 29.93 1013.38 1013.38			Wind blowing from the east-northeast	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							25.1 77									7.0 0.28	1
	08	25.2 77	743.8 29.28 991.65 991.65	759.5 29.9 1012.58 1012.58			Wind blowing from the east	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							25.2 77									2.0 0.08	1
	07	25.7 78	743.6 29.28 991.39 991.39	760.2 29.93 1013.52 1013.52	0.4 0.02 0.53 0.53	94	Calm, no wind	Calm			100%. 10/10. 8 oktas	Rain, not freezing, intermittent, slight at time of observation.	Rain.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	24.6 76		Stratocumulus other than Stratocumulus cumulogenitus.	100%. 10/10. 8 oktas	300-600 984-1968			2.0 1.2	24.7 76	7.0 0.28	24
	06	25.7 78	742.9 29.25 990.45 990.45	758.5 29.86 1011.25 1011.25			Wind blowing from the west-northwest	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							25.1 77	33.5 92								No precipitation No precipitation	1
	05	25.6 78	742.7 29.24 990.19 990.19	758.4 29.86 1011.12 1011.12				Calm							24.8 77	33.5 92								No precipitation No precipitation	1
	04	25.4 78	743.2 29.26 990.85 990.85	759.7 29.91 1012.85 1012.85	-0.1 -0 -0.13 -0.13	98	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas	Rain (not freezing) not falling as shower(s).	Rain.	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Stratocumulus other than Stratocumulus cumulogenitus.	60%. 6/10. 5 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered.	10.0 6.2	25.0 77	2.0 0.08	2
	03	25.7 78	742.1 29.22 989.39 989.39	757.8 29.83 1010.32 1010.32			Wind blowing from the east-southeast	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							24.8 77	33.5 92								No precipitation No precipitation	1
	02	25.8 78	742.3 29.22 989.65 989.65	758.0 29.84 1010.58 1010.58			Wind blowing from the west-northwest	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							24.8 77	33.5 92								No precipitation No precipitation	1
	01	26.0 79	743.3 29.26 990.99 990.99	759.9 29.92 1013.12 1013.12	-0.4 -0.02 -0.53 -0.53	95	Calm, no wind	Calm			60%. 6/10. 5 oktas	Rain (not freezing) not falling as shower(s).	Rain.	Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.			Stratocumulus other than Stratocumulus cumulogenitus.	40%. 4/10. 3 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered.	10.0 6.2	25.1 77	3.0 0.12	18
	00	26.2 79				86	Wind blowing from the south-southwest	Calm							24.8 77	33.5 92							23.7 75
September 19, Saturday	23	26.6 80				82	Wind blowing from the west	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							24.8 77	33.5 92							23.2 74
September 19, Saturday	22	26.7 80	743.7 29.28 991.52 991.52	760.2 29.93 1013.52 1013.52	1.6 0.06 2.13 2.13	90	Calm, no wind	Calm			40%. 4/10. 3 oktas	Lightning visible, no thunder heard.	Cloud covering 1/2 or less of the sky throughout the appropriate period.	Cloud covering 1/2 or less of the sky throughout the appropriate period.			Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole, but the continuous veil does not reach 45 degrees above the horizon.	10.0 6.2	25.0 77