Weather archive in Harrow (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 December 10, Wednesday | 20 | -1.4 29 | 736.7 29 982.19 982.19 | 754.3 29.7 1005.65 1005.65 | 66 | Wind blowing from the north-west | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 10 m/s 36 km/h 22 mph 19 knots 5 Bft | 10 m/s 36 km/h 22 mph 19 knots 5 Bft | -7.0 19 | No precipitation No precipitation | 1 | |||||||||||||||||
19 | -0.9 30 | 735.6 28.96 980.72 980.72 | 753.2 29.65 1004.18 1004.18 | 4.6 0.18 6.13 6.13 | 80 | Wind blowing from the north-northwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | -0.9 30 | 2.8 37 | -4.0 25 | 1.0 0.04 | 6 | |||||||||||||||||
18 | -0.7 31 | 734.4 28.91 979.12 979.12 | 751.9 29.6 1002.45 1002.45 | 82 | Wind blowing from the north | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 8 m/s 29 km/h 18 miles/hour 16 knots 5 Bft | 9 m/s 32 km/h 20 miles/hour 17 knots 5 Bft | -3.5 26 | No precipitation No precipitation | 1 | ||||||||||||||||||
17 | -0.6 31 | 732.8 28.85 976.99 976.99 | 750.4 29.54 1000.45 1000.45 | 79 | Wind blowing from the north | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 9 m/s 32 km/h 20 miles/hour 17 knots 5 Bft | 10 m/s 36 km/h 22 mph 19 knots 5 Bft | -3.8 25 | No precipitation No precipitation | 1 | ||||||||||||||||||
16 | -0.3 31 | 731.0 28.78 974.59 974.59 | 748.5 29.47 997.92 997.92 | 4.4 0.17 5.87 5.87 | 100 | Wind blowing from the north | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | -0.3 31 | 1.0 0.04 | 3 | |||||||||||||||||||
15 | 0.9 34 | 729.0 28.7 971.92 971.92 | 746.4 29.39 995.12 995.12 | 100 | Wind blowing from the north | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 8 m/s 29 km/h 18 miles/hour 16 knots 5 Bft | 8 m/s 29 km/h 18 miles/hour 16 knots 5 Bft | 0.9 34 | 0.1 | 1 | ||||||||||||||||||
14 | 1.4 35 | 727.6 28.65 970.05 970.05 | 745.0 29.33 993.25 993.25 | 100 | Wind blowing from the north-northwest | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 4 m/s 14 km/h 9 miles/hour 8 knots 3 Bft | 11 m/s 40 km/h 25 miles/hour 21 mile/hour 6 Bft | 1.4 35 | 1.0 0.04 | 1 | ||||||||||||||||||
13 | 2.4 36 | 726.6 28.61 968.72 968.72 | 743.9 29.29 991.79 991.79 | 0.1 0 0.13 0.13 | 100 | Wind blowing from the west | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | Precipitation | -1.3 30 | 2.9 37 | 2.4 36 | 3.0 0.12 | 6 | ||||||||||||||||
11 | 2.4 36 | 726.5 28.6 968.59 968.59 | 743.8 29.28 991.65 991.65 | 100 | Wind blowing from the west-southwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 11 m/s 40 km/h 25 miles/hour 21 mile/hour 6 Bft | 11 m/s 40 km/h 25 miles/hour 21 mile/hour 6 Bft | 2.4 36 | No precipitation No precipitation | 1 | ||||||||||||||||||
10 | 2.2 36 | 726.5 28.6 968.59 968.59 | 743.8 29.28 991.65 991.65 | 0.3 0.01 0.4 0.4 | 100 | Wind blowing from the west-southwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | Precipitation | 2.2 36 | 3.0 0.12 | 3 | ||||||||||||||||||
09 | 2.4 36 | 726.3 28.59 968.32 968.32 | 743.6 29.28 991.39 991.39 | 100 | Wind blowing from the west-southwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 10 m/s 36 km/h 22 mph 19 knots 5 Bft | 2.4 36 | 2.0 0.08 | 1 | |||||||||||||||||||
08 | 2.5 37 | 726.3 28.59 968.32 968.32 | 743.6 29.28 991.39 991.39 | 100 | Wind blowing from the south-west | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 13 m/s 47 km/h 29 miles/hour 25 knots 6 Bft | 13 m/s 47 km/h 29 miles/hour 25 knots 6 Bft | 2.5 37 | 2.0 0.08 | 1 | ||||||||||||||||||
07 | 2.7 37 | 726.2 28.59 968.19 968.19 | 743.5 29.27 991.25 991.25 | -2.1 -0.08 -2.8 -2.8 | 100 | Wind blowing from the south-west | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | Precipitation | 0.3 33 | 2.7 37 | 2.7 37 | 7.0 0.28 | 6 | ||||||||||||||||
06 | 2.5 37 | 726.7 28.61 968.85 968.85 | 744.1 29.3 992.05 992.05 | 100 | Wind blowing from the south-west | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 9 m/s 32 km/h 20 miles/hour 17 knots 5 Bft | 10 m/s 36 km/h 22 mph 19 knots 5 Bft | 2.5 37 | 0.7 0.03 | 1 | ||||||||||||||||||
05 | 2.1 36 | 727.6 28.65 970.05 970.05 | 744.9 29.33 993.12 993.12 | 100 | Wind blowing from the south-southwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 7 m/s 25 km/h 16 miles/hour 14 knots 4 Bft | 9 m/s 32 km/h 20 miles/hour 17 knots 5 Bft | 2.1 36 | 1.0 0.04 | 1 | ||||||||||||||||||
04 | 1.6 35 | 728.3 28.67 970.99 970.99 | 745.7 29.36 994.19 994.19 | -4.3 -0.17 -5.73 -5.73 | 100 | Wind blowing from the south-southwest | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | Precipitation | 1.6 35 | 5.0 0.2 | 3 | ||||||||||||||||||
03 | 1.2 34 | 730.0 28.74 973.25 973.25 | 747.5 29.43 996.58 996.58 | 100 | Wind blowing from the south | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 7 m/s 25 km/h 16 miles/hour 14 knots 4 Bft | 7 m/s 25 km/h 16 miles/hour 14 knots 4 Bft | 1.2 34 | 4.0 0.16 | 1 | ||||||||||||||||||
02 | 0.9 34 | 730.9 28.78 974.45 974.45 | 748.4 29.46 997.78 997.78 | 100 | Wind blowing from the south | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 7 m/s 25 km/h 16 miles/hour 14 knots 4 Bft | 7 m/s 25 km/h 16 miles/hour 14 knots 4 Bft | 0.9 34 | 0.4 0.02 | 1 | ||||||||||||||||||
01 | 0.3 33 | 732.6 28.84 976.72 976.72 | 750.1 29.53 1000.05 1000.05 | -2.9 -0.11 -3.87 -3.87 | 100 | Wind blowing from the south | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | Precipitation | 1.5 35 | 0.3 33 | 0.9 0.04 | 6 | |||||||||||||||||
00 | 0.7 33 | 733.8 28.89 978.32 978.32 | 751.4 29.58 1001.78 1001.78 | 100 | Wind blowing from the south-southwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 7 m/s 25 km/h 16 miles/hour 14 knots 4 Bft | 7 m/s 25 km/h 16 miles/hour 14 knots 4 Bft | 0.7 33 | 0.2 0.01 | 1 | ||||||||||||||||||
| December 9, Tuesday | 23 | 0.9 34 | 734.7 28.93 979.52 979.52 | 752.3 29.62 1002.98 1002.98 | 100 | Wind blowing from the south-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 5 m/s 18 km/h 11 miles/hour 10 knots 3 Bft | 6 m/s 22 km/h 13 miles/hour 12 knots 4 Bft | 0.9 34 | 0.3 0.01 | 1 | |||||||||||||||||
22 | 1.2 34 | 735.5 28.96 980.59 980.59 | 753.1 29.65 1004.05 1004.05 | -1.3 -0.05 -1.73 -1.73 | 100 | Wind blowing from the south-west | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 1.2 34 | No precipitation No precipitation | 3 | |||||||||||||||||||
21 | 1.4 35 | 736.1 28.98 981.39 981.39 | 753.7 29.67 1004.85 1004.85 | 89 | Wind blowing from the south-west | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 8 m/s 29 km/h 18 miles/hour 16 knots 5 Bft | 8 m/s 29 km/h 18 miles/hour 16 knots 5 Bft | -0.3 31 | No precipitation No precipitation | 1 | ||||||||||||||||||
20 | 1.3 34 | 736.6 29 982.05 982.05 | 754.3 29.7 1005.65 1005.65 | 91 | Wind blowing from the south-west | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 7 m/s 25 km/h 16 miles/hour 14 knots 4 Bft | 8 m/s 29 km/h 18 miles/hour 16 knots 5 Bft | -0.1 32 | No precipitation No precipitation | 1 | ||||||||||||||||||