Weather archive in Ai-Petri

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
2021 July 31, Saturday	12	19.4 67	662.7 26.09 883.53 883.53		0.4 0.02 0.53 0.53	76	Wind blowing from the south-east	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas						Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	70 – 80%. 7/10 – 8/10. 6 oktas	300-600 984-1968	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	10.0 6.2	15.0 59
	09	21.5 71	662.3 26.07 882.99 882.99		0.2 0.01 0.27 0.27	68	Wind blowing from the north-west	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0				15.0 59		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	300-600 984-1968	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	10.0 6.2	15.3 60	No precipitation No precipitation	12
	06	16.7 62	662.1 26.07 882.73 882.73		0.2 0.01 0.27 0.27	78	Wind blowing from the north-west	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)			no clouds no clouds no clouds				15.0 59							10.0 6.2	12.8 55	No precipitation No precipitation	12
	03	15.4 60	661.9 26.06 882.46 882.46		-0.2 -0.01 -0.27 -0.27	81	Wind blowing from the west-northwest	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			no clouds no clouds no clouds											10.0 6.2	12.1 54
	00	16.8 62	662.1 26.07 882.73 882.73		0.6 0.02 0.8 0.8	70	Wind blowing from the north-west	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)		11 m/s 40 km/h 25 miles/hour 21 mile/hour 6 Bft	no clouds no clouds no clouds											10.0 6.2	11.2 52
July 30, Friday	21	17.6 64	661.5 26.04 881.93 881.93		-0.1 -0 -0.13 -0.13	90	Wind blowing from the west-northwest	Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft)	11 m/s 40 km/h 25 miles/hour 21 mile/hour 6 Bft	11 m/s 40 km/h 25 miles/hour 21 mile/hour 6 Bft	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0					25.0 77	Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	300-600 984-1968	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	10.0 6.2	16.0 61	No precipitation No precipitation	12
	18	22.3 72	661.6 26.05 882.06 882.06		-0.8 -0.03 -1.07 -1.07	62	Wind blowing from the west-northwest	Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft)			no clouds no clouds no clouds											10.0 6.2	14.6 58	No precipitation No precipitation	12
	15	24.0 75	662.4 26.08 883.13 883.13		-0.8 -0.03 -1.07 -1.07	52	Wind blowing from the north-west	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			60%. 6/10. 5 oktas						No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	20–30%. 2/10–3/10. 2 oktas	2500 or more, or no clouds. 8202 or more, or no clouds.	Altocumulus translucidus in bands, or one or more layers of Altocumulus translucidus or opacus, progressively invading the sky; these Altocumulus clouds generally thicken as a whole.	Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus.	10.0 6.2	13.4 56
	12	24.1 75	663.2 26.11 884.19 884.19		-0.2 -0.01 -0.27 -0.27	52	Wind blowing from the west-northwest	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			20–30%. 2/10–3/10. 2 oktas						No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	2500 or more, or no clouds. 8202 or more, or no clouds.	Altocumulus translucidus at a single level.	Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus.	10.0 6.2	13.5 56