Monthly Data Tables - Wet Hours / hrs

Total Max hour Max 10-min Max rate Mean rate Wet hours Wet % of day

Monthly

Total Count Lowest Highest

Start year

1871 1910 1950 1980 2000 2009 2020

Monthly Total Wet Hours

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Year

2026

106
(159%)

103
(198%)

28
(52%)

3
(6%)

14
(36%)

47
(128%)

0
(0%)

301
(52%)

2025

76
(113%)

62
(118%)

5
(10%)

17
(37%)

24
(61%)

25
(68%)

39
(115%)

16
(41%)

37
(90%)

59
(121%)

66
(106%)

60
(97%)

486
(84%)

2024

46
(69%)

92
(176%)

72
(135%)

58
(126%)

60
(150%)

16
(43%)

56
(164%)

27
(71%)

66
(161%)

59
(120%)

58
(93%)

59
(95%)

669
(115%)

2023

58
(86%)

8
(16%)

103
(194%)

59
(128%)

24
(61%)

14
(39%)

75
(221%)

41
(108%)

28
(70%)

79
(161%)

79
(125%)

93
(150%)

662
(114%)

2022

20
(31%)

61
(117%)

48
(90%)

16
(36%)

36
(91%)

25
(68%)

6
(18%)

17
(45%)

39
(95%)

54
(109%)

89
(141%)

61
(98%)

472
(81%)

2021

91
(136%)

56
(108%)

25
(47%)

6
(14%)

68
(170%)

52
(141%)

44
(130%)

32
(84%)

28
(67%)

56
(114%)

18
(28%)

64
(103%)

540
(93%)

2020

60
(89%)

90
(173%)

47
(89%)

26
(58%)

2
(6%)

37
(99%)

48
(141%)

38
(99%)

27
(66%)

132
(268%)

44
(71%)

80
(130%)

631
(108%)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Year

Lowest

20
(31%)

8
(16%)

5
(10%)

3
(6%)

2
(6%)

14
(39%)

0
(0%)

16
(41%)

27
(66%)

54
(109%)

18
(28%)

59
(95%)

301
(52%)

Highest

106
(159%)

103
(198%)

103
(194%)

59
(128%)

68
(170%)

52
(141%)

75
(221%)

41
(108%)

66
(161%)

132
(268%)

89
(141%)

93
(150%)

669
(115%)

Mean

65
(97%)

67
(129%)

47
(88%)

27
(58%)

33
(82%)

31
(84%)

38
(113%)

28
(75%)

38
(91%)

73
(149%)

59
(94%)

70
(112%)

537
(92%)

Wet Hours: monthly totals for all months since 2020 in London, NW3. Data for Wet Hours begins in 2009.

Monthly Count Wet Hours

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Year

123

173

159

148

161

171

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Year

Lowest

Highest

173

Mean

14.6

16.7

8.7

10.3

10.1

9.5

11.2

17.7

15.3

16.8

145

Wet Hours: count of days with a non-zero value for all months since 2020 in London, NW3. Data for Wet Hours begins in 2009.

Monthly Lowest Wet Hours

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Year

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Year

Lowest

Highest

Mean

Wet Hours: lowest daily value each month for all months since 2020 in London, NW3. Data for Wet Hours begins in 2009.

Monthly Highest Wet Hours

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Year

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Year

Lowest

0.7

Highest

Mean

Wet Hours: highest daily value each month for all months since 2020 in London, NW3. Data for Wet Hours begins in 2009.

Figures in brackets refer to departure from recent average conditions (the anomaly for the current month is unadjusted for the month's degree of completeness).