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 January 19, Sunday | 08 | -13.9 7 | 666.6 26.24 888.73 888.73 | 775.7 30.54 1034.18 1034.18 | 0.7 0.03 0.93 0.93 | 84 | Calm, no wind | Calm | 100%. 10/10. 8 oktas | Continuous fall of snowflakes, slight at time of observation. | 600-1000 1968-3281 | 3.2 2.0 | -16.1 3 | 0.3 0.01 | 3 | ||||||||||||||
05 | -14.4 6 | 665.9 26.22 887.79 887.79 | 774.7 30.5 1032.85 1032.85 | -0.7 -0.03 -0.93 -0.93 | 83 | Wind blowing from the east | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | Mist. | -15.0 5 | -10.0 14 | 1000-1500 3281-4921 | 9.0 5.6 | -16.7 2 | |||||||||||||||
02 | -14.4 6 | 666.6 26.24 888.73 888.73 | 775.3 30.52 1033.65 1033.65 | -1.0 -0.04 -1.33 -1.33 | 76 | Calm, no wind | Calm | 100%. 10/10. 8 oktas | 1500-2000 4921-6562 | 16.0 9.9 | -17.8 -0 | ||||||||||||||||||
| January 18, Saturday | 23 | -13.9 7 | 667.6 26.28 890.06 890.06 | 776.3 30.56 1034.98 1034.98 | -1.3 -0.05 -1.73 -1.73 | 70 | Wind blowing from the west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | -14.4 6 | -9.4 15 | 1500-2000 4921-6562 | 16.0 9.9 | -18.3 -1 | |||||||||||||||
20 | -13.3 8 | 668.9 26.33 891.79 891.79 | 778.0 30.63 1037.25 1037.25 | -0.7 -0.03 -0.93 -0.93 | 66 | Wind blowing from the north | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | 2000-2500 6562-8202 | 16.0 9.9 | -18.3 -1 | ||||||||||||||||||
17 | -11.7 11 | 669.6 26.36 892.73 892.73 | 778.9 30.67 1038.45 1038.45 | -1.3 -0.05 -1.73 -1.73 | 58 | Wind blowing from the east | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | -13.9 7 | -10.0 14 | 1500-2000 4921-6562 | 16.0 9.9 | -18.3 -1 | ||||||||||||||||
14 | -11.1 12 | 670.9 26.41 894.46 894.46 | 780.1 30.71 1040.05 1040.05 | -1.6 -0.06 -2.13 -2.13 | 56 | Wind blowing from the north-northeast | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 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 | -18.3 -1 | ||||||||||||||||||
11 | -10.6 13 | 672.5 26.48 896.59 896.59 | 781.7 30.78 1042.18 1042.18 | 1.1 0.04 1.47 1.47 | 61 | Wind blowing from the north | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | no clouds no clouds no clouds | -13.9 7 | -9.4 15 | 16.0 9.9 | -16.7 2 | |||||||||||||||||
08 | -11.7 11 | 671.4 26.43 895.13 895.13 | 780.4 30.72 1040.45 1040.45 | 1.4 0.06 1.87 1.87 | 81 | 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 | 1000-1500 3281-4921 | 14.0 8.7 | -14.4 6 | ||||||||||||||||||