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 July 18, Friday | 15 | 28.9 84 | 659.2 25.95 878.86 878.86 | 758.8 29.87 1011.65 1011.65 | -1.8 -0.07 -2.4 -2.4 | 25 | Wind blowing from the north-east | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | no clouds no clouds no clouds | 16.0 9.9 | 7.2 45 | ||||||||||||||||||
12 | 22.8 73 | 661.0 26.02 881.26 881.26 | 761.3 29.97 1014.98 1014.98 | -1.3 -0.05 -1.73 -1.73 | 43 | Wind blowing from the east-northeast | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | no clouds no clouds no clouds | 12.8 55 | 22.8 73 | 16.0 9.9 | 9.4 49 | |||||||||||||||||
09 | 15.6 60 | 662.3 26.07 882.99 882.99 | 763.0 30.04 1017.25 1017.25 | 0.2 0.01 0.27 0.27 | 65 | Wind blowing from the north | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | 16.0 9.9 | 8.9 48 | |||||||||||||||||||
06 | 12.8 55 | 662.1 26.07 882.73 882.73 | 762.2 30.01 1016.18 1016.18 | 0.2 0.01 0.27 0.27 | 77 | Wind blowing from the west-southwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | no clouds no clouds no clouds | 12.8 55 | 31.7 89 | 16.0 9.9 | 8.9 48 | |||||||||||||||||
03 | 14.4 58 | 661.9 26.06 882.46 882.46 | 761.8 29.99 1015.65 1015.65 | 0.0 0 0 0 | 72 | Wind blowing from the west | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | no clouds no clouds no clouds | 16.0 9.9 | 9.4 49 | |||||||||||||||||||
00 | 16.7 62 | 661.9 26.06 882.46 882.46 | 762.1 30 1016.05 1016.05 | 2.3 0.09 3.07 3.07 | 67 | 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 | 10.6 51 | 31.7 89 | 16.0 9.9 | 10.6 51 | |||||||||||||||||
| July 17, Thursday | 21 | 20.6 69 | 659.6 25.97 879.39 879.39 | 760.0 29.92 1013.25 1013.25 | 2.5 0.1 3.33 3.33 | 57 | Wind blowing from the north-northwest | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 12 m/s 43 km/h 27 miles/hour 23 knots 6 Bft | no clouds no clouds no clouds | 16.0 9.9 | 11.7 53 | |||||||||||||||||
18 | 30.6 87 | 657.1 25.87 876.06 876.06 | 756.7 29.79 1008.85 1008.85 | -0.5 -0.02 -0.67 -0.67 | 15 | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | 10.6 51 | 31.1 88 | 16.0 9.9 | 1.1 34 | ||||||||||||||||||
15 | 29.4 85 | 657.6 25.89 876.73 876.73 | 757.0 29.8 1009.25 1009.25 | -1.1 -0.04 -1.47 -1.47 | 21 | no clouds no clouds no clouds | 16.0 9.9 | 5.0 41 | |||||||||||||||||||||