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 | |
| 2025 December 7, Sunday | 08 | 2.8 37 | 661.9 26.06 882.46 882.46 | 765.7 30.15 1020.85 1020.85 | 0.9 0.04 1.2 1.2 | 65 | Wind blowing from the south | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | 1500-2000 4921-6562 | 16.0 9.9 | -3.3 26 | |||||||||||||||||
05 | 3.9 39 | 661.0 26.02 881.26 881.26 | 764.5 30.1 1019.25 1019.25 | 1.2 0.05 1.6 1.6 | 57 | Wind blowing from the south-west | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 11 m/s 40 km/h 25 miles/hour 21 mile/hour 6 Bft | 70 – 80%. 7/10 – 8/10. 6 oktas | 0.6 33 | 7.8 46 | 1500-2000 4921-6562 | 16.0 9.9 | -3.9 25 | |||||||||||||||
02 | 3.9 39 | 659.8 25.98 879.66 879.66 | 763.0 30.04 1017.25 1017.25 | 0.6 0.02 0.8 0.8 | 57 | Wind blowing from the west | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 14 m/s 50 km/h 31 mile/hour 27 knots 7 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 | -3.9 25 | |||||||||||||||||
| December 6, Saturday | 23 | 1.7 35 | 659.2 25.95 878.86 878.86 | 762.7 30.03 1016.85 1016.85 | 1.4 0.06 1.87 1.87 | 85 | Wind blowing from the west-northwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 100%. 10/10. 8 oktas | -0.5 31 | 5.6 42 | 1000-1500 3281-4921 | 16.0 9.9 | -0.6 31 | |||||||||||||||
20 | 5.0 41 | 657.8 25.9 876.99 876.99 | 760.8 29.95 1014.32 1014.32 | 1.1 0.04 1.47 1.47 | 53 | Wind blowing from the west | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 1500-2000 4921-6562 | 16.0 9.9 | -3.9 25 | ||||||||||||||||||
17 | 5.6 42 | 656.7 25.85 875.53 875.53 | 759.7 29.91 1012.85 1012.85 | 1.4 0.06 1.87 1.87 | 58 | Wind blowing from the west-northwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | -0.5 31 | 7.8 46 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -2.2 28 | ||||||||||||||||
14 | 7.2 45 | 655.3 25.8 873.66 873.66 | 757.6 29.83 1010.05 1010.05 | 0.6 0.02 0.8 0.8 | 58 | Wind blowing from the west | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | no clouds no clouds no clouds | 16.0 9.9 | -0.6 31 | |||||||||||||||||||
11 | 4.4 40 | 654.7 25.78 872.86 872.86 | 757.7 29.83 1010.18 1010.18 | 2.4 0.09 3.2 3.2 | 77 | Wind blowing from the west | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | no clouds no clouds no clouds | 1.7 35 | 4.4 40 | 16.0 9.9 | 0.6 33 | |||||||||||||||||
08 | 3.9 39 | 652.3 25.68 869.66 869.66 | 755.1 29.73 1006.72 1006.72 | 1.5 0.06 2 2 | 76 | Wind blowing from the west | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 11 m/s 40 km/h 25 miles/hour 21 mile/hour 6 Bft | 20–30%. 2/10–3/10. 2 oktas | 1000-1500 3281-4921 | 16.0 9.9 | 0.0 32 | |||||||||||||||||