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 | 23 | 1.7 35 | 660.1 25.99 880.06 880.06 | 764.0 30.08 1018.58 1018.58 | 1.2 0.05 1.6 1.6 | 89 | Calm, no wind | Calm | 100%. 10/10. 8 oktas | 0.6 33 | 7.2 45 | 1000-1500 3281-4921 | 16.0 9.9 | 0.0 32 | Trace of precipitation Trace of precipitation | 6 | |||||||||||||
20 | 4.4 40 | 658.9 25.94 878.46 878.46 | 762.4 30.02 1016.45 1016.45 | -0.3 -0.01 -0.4 -0.4 | 70 | Wind blowing from the south | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | 1000-1500 3281-4921 | 16.0 9.9 | -0.6 31 | Trace of precipitation Trace of precipitation | 3 | ||||||||||||||||
17 | 6.7 44 | 659.2 25.95 878.86 878.86 | 762.1 30 1016.05 1016.05 | -1.5 -0.06 -2 -2 | 45 | Wind blowing from the south-west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | 0.6 33 | 7.2 45 | 1500-2000 4921-6562 | 16.0 9.9 | -4.4 24 | ||||||||||||||||
14 | 5.6 42 | 660.7 26.01 880.86 880.86 | 764.1 30.08 1018.72 1018.72 | -1.8 -0.07 -2.4 -2.4 | 58 | Calm, no wind | Calm | 70 – 80%. 7/10 – 8/10. 6 oktas | 1500-2000 4921-6562 | 16.0 9.9 | -2.2 28 | ||||||||||||||||||
11 | 3.3 38 | 662.5 26.08 883.26 883.26 | 766.7 30.19 1022.18 1022.18 | 0.6 0.02 0.8 0.8 | 68 | Wind blowing from the west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | 2.2 36 | 3.9 39 | 1500-2000 4921-6562 | 16.0 9.9 | -2.2 28 | Trace of precipitation Trace of precipitation | 6 | ||||||||||||||
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 | |||||||||||||||||