Weather archive in Portland (airport), Maine
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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 26, Friday | 23 | 17.2 63 | 756.1 29.77 1008.05 1008.05 | 757.3 29.81 1009.65 1009.65 | 1.1 0.04 1.47 1.47 | 90 | Wind blowing from the west-northwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | 16.0 9.9 | 15.6 60 | ||||||||||||||||||
20 | 18.9 66 | 755.0 29.72 1006.58 1006.58 | 756.3 29.78 1008.32 1008.32 | 1.3 0.05 1.73 1.73 | 81 | Calm, no wind | Calm | no clouds no clouds no clouds | 16.7 62 | 26.7 80 | 16.0 9.9 | 15.6 60 | |||||||||||||||||
17 | 25.6 78 | 753.7 29.67 1004.85 1004.85 | 755.2 29.73 1006.85 1006.85 | 0.0 0 0 0 | 48 | Wind blowing from the west-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 50%. 5/10. 4 oktas | 1000-1500 3281-4921 | 16.0 9.9 | 13.9 57 | ||||||||||||||||||
14 | 25.0 77 | 753.7 29.67 1004.85 1004.85 | 755.2 29.73 1006.85 1006.85 | -0.3 -0.01 -0.4 -0.4 | 54 | Calm, no wind | Calm | 20–30%. 2/10–3/10. 2 oktas | 17.2 63 | 25.6 78 | 1000-1500 3281-4921 | 16.0 9.9 | 15.0 59 | ||||||||||||||||
11 | 23.9 75 | 754.0 29.69 1005.25 1005.25 | 755.5 29.74 1007.25 1007.25 | 1.0 0.04 1.33 1.33 | 66 | Wind blowing from the north-northwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 1000-1500 3281-4921 | 16.0 9.9 | 17.2 63 | ||||||||||||||||||
08 | 17.8 64 | 753.0 29.65 1003.92 1003.92 | 754.2 29.69 1005.52 1005.52 | 1.8 0.07 2.4 2.4 | 100 | Calm, no wind | Calm | 70 – 80%. 7/10 – 8/10. 6 oktas | 16.7 62 | 19.4 67 | 1000-1500 3281-4921 | 16.0 9.9 | 17.8 64 | Trace of precipitation Trace of precipitation | 6 | ||||||||||||||
05 | 17.8 64 | 751.2 29.57 1001.52 1001.52 | 752.6 29.63 1003.38 1003.38 | 1.0 0.04 1.33 1.33 | 100 | Wind blowing from the south-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | 16.0 9.9 | 17.8 64 | Trace of precipitation Trace of precipitation | 3 | |||||||||||||||||
02 | 20.0 68 | 750.2 29.54 1000.18 1000.18 | 751.6 29.59 1002.05 1002.05 | -1.0 -0.04 -1.33 -1.33 | 100 | 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, moderate. | 15.0 59 | 20.0 68 | 50-100 164-328 | 6.0 3.7 | 20.0 68 | 4.0 0.16 | 6 | |||||||||||||