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 March 19, Thursday | 14 | 22.2 72 | 662.1 26.07 882.73 882.73 | 763.6 30.06 1018.05 1018.05 | -0.7 -0.03 -0.93 -0.93 | 19 | Wind blowing from the west | Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft) | 14 m/s 50 km/h 31 mile/hour 27 knots 7 Bft | no clouds no clouds no clouds | 16.0 9.9 | -2.8 27 | |||||||||||||||||
11 | 18.9 66 | 662.8 26.09 883.66 883.66 | 764.2 30.09 1018.85 1018.85 | 0.3 0.01 0.4 0.4 | 22 | Wind blowing from the west-northwest | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 11 m/s 40 km/h 25 miles/hour 21 mile/hour 6 Bft | no clouds no clouds no clouds | 0.6 33 | 18.9 66 | 16.0 9.9 | -3.3 26 | ||||||||||||||||
08 | 6.1 43 | 662.5 26.08 883.26 883.26 | 765.0 30.12 1019.92 1019.92 | 0.0 0 0 0 | 53 | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | 16.0 9.9 | -2.8 27 | ||||||||||||||||||||
05 | 3.3 38 | 662.5 26.08 883.26 883.26 | 765.0 30.12 1019.92 1019.92 | -0.3 -0.01 -0.4 -0.4 | 62 | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | 2.8 37 | 21.1 70 | 16.0 9.9 | -3.3 26 | ||||||||||||||||||
02 | 5.0 41 | 662.8 26.09 883.66 883.66 | 764.8 30.11 1019.65 1019.65 | 0.0 0 0 0 | 55 | Calm, no wind | Calm | no clouds no clouds no clouds | 16.0 9.9 | -3.3 26 | |||||||||||||||||||
| March 18, Wednesday | 23 | 10.0 50 | 662.8 26.09 883.66 883.66 | 764.8 30.11 1019.65 1019.65 | 0.3 0.01 0.4 0.4 | 35 | Wind blowing from the south-southwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | no clouds no clouds no clouds | 5.0 41 | 17.8 64 | 16.0 9.9 | -5.0 23 | ||||||||||||||||
20 | 12.2 54 | 662.5 26.08 883.26 883.26 | 765.4 30.13 1020.45 1020.45 | 0.4 0.02 0.53 0.53 | 33 | Wind blowing from the west-northwest | 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 | -3.9 25 | |||||||||||||||||||
17 | 17.8 64 | 662.1 26.07 882.73 882.73 | 764.1 30.08 1018.72 1018.72 | 0.5 0.02 0.67 0.67 | 18 | Wind blowing from the west | 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 | 5.0 41 | 21.1 70 | 16.0 9.9 | -7.2 19 | ||||||||||||||||
14 | 18.9 66 | 661.6 26.05 882.06 882.06 | 762.8 30.03 1016.98 1016.98 | 0.0 0 0 0 | 16 | Wind blowing from the west | Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft) | 16 m/s 58 km/h 36 miles/hour 31 mile/hour 7 Bft | no clouds no clouds no clouds | 16.0 9.9 | -7.2 19 | ||||||||||||||||||