Weather archive in Helena (airport)

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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 June 4, Thursday	09	17.8 64	660.5 26 880.59 880.59	761.1 29.96 1014.72 1014.72	0.0 0 0 0	46	Wind blowing from the west	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		no clouds no clouds no clouds											16.0 9.9	6.1 43
	06	12.8 55	660.5 26 880.59 880.59	761.1 29.96 1014.72 1014.72	0.9 0.04 1.2 1.2	74	Calm, no wind	Calm			20–30%. 2/10–3/10. 2 oktas				11.7 53	23.3 74			2000-2500 6562-8202			16.0 9.9	8.3 47
	03	14.4 58	659.6 25.97 879.39 879.39	760.2 29.93 1013.52 1013.52	-0.9 -0.04 -1.2 -1.2	65	Wind blowing from the south-southeast	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			16.0 9.9	7.8 46
	00	16.7 62	660.5 26 880.59 880.59	761.5 29.98 1015.25 1015.25	0.4 0.02 0.53 0.53	67	Wind blowing from the west-northwest	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			100%. 10/10. 8 oktas				6.1 43	21.7 71			2000-2500 6562-8202			16.0 9.9	10.6 51
June 3, Wednesday	21	18.3 65	660.1 25.99 880.06 880.06	761.2 29.97 1014.85 1014.85	-0.2 -0.01 -0.27 -0.27	63	Wind blowing from the north-northwest	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			50%. 5/10. 4 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			16.0 9.9	11.1 52
	18	21.7 71	660.3 26 880.33 880.33	761.4 29.98 1015.12 1015.12	-0.9 -0.04 -1.2 -1.2	39	Wind blowing from the north-northeast	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			no clouds no clouds no clouds				6.1 43	23.3 74						16.0 9.9	7.2 45
	15	20.0 68	661.2 26.03 881.53 881.53	762.5 30.02 1016.58 1016.58	-2.0 -0.08 -2.67 -2.67	47	Calm, no wind	Calm			no clouds no clouds no clouds											16.0 9.9	8.3 47
	12	15.6 60	663.2 26.11 884.19 884.19	765.1 30.12 1020.05 1020.05	-1.1 -0.04 -1.47 -1.47	62	Wind blowing from the east-northeast	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			20–30%. 2/10–3/10. 2 oktas				6.7 44	15.6 60			600-1000 1968-3281			16.0 9.9	8.3 47
	09	11.1 52	664.3 26.15 885.66 885.66	766.8 30.19 1022.32 1022.32	-0.3 -0.01 -0.4 -0.4	75	Wind blowing from the east-southeast	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			100%. 10/10. 8 oktas								300-600 984-1968			16.0 9.9	6.7 44