Weather archive in Bethlehem / Lehigh Valley (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 September 18, Friday | 23 | 18.9 66 | 755.2 29.73 1006.85 1006.85 | 765.3 30.13 1020.32 1020.32 | 0.9 0.04 1.2 1.2 | 63 | Wind blowing from the north-northeast | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | 16.0 9.9 | 11.7 53 | ||||||||||||||||||
20 | 21.7 71 | 754.3 29.7 1005.65 1005.65 | 764.4 30.09 1019.12 1019.12 | 0.6 0.02 0.8 0.8 | 59 | Wind blowing from the north-northwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | no clouds no clouds no clouds | 20.6 69 | 27.8 82 | 16.0 9.9 | 13.3 56 | |||||||||||||||||
17 | 26.7 80 | 753.7 29.67 1004.85 1004.85 | 763.7 30.07 1018.18 1018.18 | -0.3 -0.01 -0.4 -0.4 | 41 | Wind blowing from the north-west | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | no clouds no clouds no clouds | 16.0 9.9 | 12.2 54 | |||||||||||||||||||
14 | 27.2 81 | 754.0 29.69 1005.25 1005.25 | 764.0 30.08 1018.58 1018.58 | -0.7 -0.03 -0.93 -0.93 | 45 | Wind blowing from the north | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 10 m/s 36 km/h 22 mph 19 knots 5 Bft | no clouds no clouds no clouds | 21.1 70 | 27.8 82 | 16.0 9.9 | 14.4 58 | ||||||||||||||||
11 | 25.6 78 | 754.7 29.71 1006.18 1006.18 | 764.8 30.11 1019.65 1019.65 | 0.2 0.01 0.27 0.27 | 56 | Wind blowing from the north-northwest | 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 | 1500-2000 4921-6562 | 16.0 9.9 | 16.1 61 | |||||||||||||||||
08 | 21.1 70 | 754.5 29.7 1005.92 1005.92 | 764.5 30.1 1019.25 1019.25 | 1.5 0.06 2 2 | 87 | Wind blowing from the north-east | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 100%. 10/10. 8 oktas | 20.6 69 | 26.7 80 | 300-600 984-1968 | 16.0 9.9 | 18.9 66 | ||||||||||||||||
05 | 21.7 71 | 753.0 29.65 1003.92 1003.92 | 763.1 30.04 1017.38 1017.38 | -0.2 -0.01 -0.27 -0.27 | 96 | Calm, no wind | Calm | 100%. 10/10. 8 oktas | Mist. | 1500-2000 4921-6562 | 6.0 3.7 | 21.1 70 | |||||||||||||||||
02 | 21.7 71 | 753.2 29.65 1004.18 1004.18 | 763.3 30.05 1017.65 1017.65 | -0.8 -0.03 -1.07 -1.07 | 96 | Calm, no wind | Calm | 50%. 5/10. 4 oktas | Mist. | 20.0 68 | 23.3 74 | 2000-2500 6562-8202 | 6.0 3.7 | 21.1 70 | |||||||||||||||