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 September 16, Tuesday | 12 | 16.7 62 | 668.2 26.31 890.86 890.86 | 770.3 30.33 1026.98 1026.98 | 0.0 0 0 0 | 70 | 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 | 12.8 55 | 16.7 62 | 1000-1500 3281-4921 | 16.0 9.9 | 11.1 52 | 0.5 0.02 | 6 | |||||||||||||
09 | 13.3 56 | 668.2 26.31 890.86 890.86 | 770.5 30.33 1027.25 1027.25 | 0.6 0.02 0.8 0.8 | 87 | Wind blowing from the west-northwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | 600-1000 1968-3281 | 16.0 9.9 | 11.1 52 | 0.5 0.02 | 3 | ||||||||||||||||
06 | 13.3 56 | 667.6 26.28 890.06 890.06 | 769.5 30.3 1025.92 1025.92 | 0.7 0.03 0.93 0.93 | 87 | 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 | Rain, not freezing, continuous, slight at time of observation. | 12.2 54 | 20.6 69 | 600-1000 1968-3281 | 14.0 8.7 | 11.1 52 | 2.0 0.08 | 6 | |||||||||||||
03 | 13.3 56 | 666.9 26.26 889.13 889.13 | 768.6 30.26 1024.72 1024.72 | 1.0 0.04 1.33 1.33 | 87 | Wind blowing from the west-northwest | 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 | 11.1 52 | Trace of precipitation Trace of precipitation | 3 | ||||||||||||||||
00 | 13.9 57 | 665.9 26.22 887.79 887.79 | 767.5 30.22 1023.25 1023.25 | 0.9 0.04 1.2 1.2 | 87 | 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 | 8.3 47 | 18.9 66 | 1500-2000 4921-6562 | 16.0 9.9 | 11.7 53 | 2.0 0.08 | 6 | ||||||||||||||
| September 15, Monday | 21 | 15.6 60 | 665.0 26.18 886.59 886.59 | 767.2 30.2 1022.85 1022.85 | 1.3 0.05 1.73 1.73 | 65 | Wind blowing from the north-west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | Rain, not freezing, continuous, slight at time of observation. | 1500-2000 4921-6562 | 16.0 9.9 | 8.9 48 | Trace of precipitation Trace of precipitation | 3 | ||||||||||||||
18 | 18.3 65 | 663.7 26.13 884.86 884.86 | 765.4 30.13 1020.45 1020.45 | 1.4 0.06 1.87 1.87 | 52 | Wind blowing from the north-west | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 100%. 10/10. 8 oktas | 8.3 47 | 20.6 69 | 1500-2000 4921-6562 | 16.0 9.9 | 8.3 47 | ||||||||||||||||
15 | 18.9 66 | 662.3 26.07 882.99 882.99 | 763.8 30.07 1018.32 1018.32 | 0.0 0 0 0 | 43 | Wind blowing from the west | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 7 m/s 25 km/h 16 miles/hour 14 knots 4 Bft | 100%. 10/10. 8 oktas | 2000-2500 6562-8202 | 16.0 9.9 | 6.1 43 | |||||||||||||||||
12 | 17.8 64 | 662.3 26.07 882.99 882.99 | 763.5 30.06 1017.92 1017.92 | 0.4 0.02 0.53 0.53 | 48 | Wind blowing from the west | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 8 m/s 29 km/h 18 miles/hour 16 knots 5 Bft | 70 – 80%. 7/10 – 8/10. 6 oktas | 8.3 47 | 18.3 65 | 1000-1500 3281-4921 | 16.0 9.9 | 6.7 44 | |||||||||||||||