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Hampstead
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Last Full Update: 02 Aug 2026, 07:30 BSTUpdated: 02 Aug 26 07:30
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Historical Ranked Annual Data - Rainfall / mm

TotalMax hourMax 10-minMax rateMean rateWet hoursWet % of day
Annual
TotalLowestHighestRangeCount ≥Count <
Threshold
0.21.03.05.010.020.0
Start year
18711950198020002009

Top annual lowest
#
Value
Date
1
0.0
2026
2
0.0
2025
3
0.0
2024
4
0.0
2023
5
0.0
2022
6
0.0
2021
7
0.0
2020
8
0.0
2019
9
0.0
2018
10
0.0
2017
11
0.0
2016
12
0.0
2015
13
0.0
2014
14
0.0
2013
15
0.0
2012
16
0.0
2011
17
0.0
2010
18
0.0
2009
19
0.0
2008*
20
0.0
2007*
21
0.0
2006*
22
0.0
2005*
23
0.0
2004*
24
0.0
2003*
25
0.0
2002*
26
0.0
2001*
27
0.0
2000*
28
0.0
1999*
29
0.0
1998*
30
0.0
1997*
31
0.0
1996*
32
0.0
1995*
33
0.0
1994*
34
0.0
1993*
35
0.0
1992*
36
0.0
1991*
37
0.0
1990*
38
0.0
1989*
39
0.0
1988*
40
0.0
1987*
41
0.0
1986*
42
0.0
1985*
43
0.0
1984*
44
0.0
1983*
45
0.0
1982*
46
0.0
1981*
47
0.0
1980*
48
0.0
1979*
49
0.0
1978*
50
0.0
1977*
51
0.0
1976*
52
0.0
1975*
53
0.0
1974*
54
0.0
1973*
55
0.0
1972*
56
0.0
1971*
57
0.0
1970*
58
0.0
1969*
59
0.0
1968*
60
0.0
1967*
61
0.0
1966*
62
0.0
1965*
63
0.0
1964*
64
0.0
1963*
65
0.0
1962*
66
0.0
1961*
67
0.0
1960*
68
0.0
1959*
69
0.0
1958*
70
0.0
1957*
71
0.0
1956*
72
0.0
1955*
73
0.0
1954*
74
0.0
1953*
75
0.0
1952*
76
0.0
1951*
77
0.0
1950*
78
0.0
1949*
79
0.0
1948*
80
0.0
1947*
81
0.0
1946*
82
0.0
1945*
83
0.0
1944*
84
0.0
1943*
85
0.0
1942*
86
0.0
1941*
87
0.0
1940*
88
0.0
1939*
89
0.0
1938*
90
0.0
1937*
91
0.0
1936*
92
0.0
1935*
93
0.0
1934*
94
0.0
1933*
95
0.0
1932*
96
0.0
1931*
97
0.0
1930*
98
0.0
1929*
99
0.0
1928*
100
0.0
1927*
101
0.0
1926*
102
0.0
1925*
103
0.0
1924*
104
0.0
1923*
105
0.0
1922*
106
0.0
1921*
107
0.0
1920*
108
0.0
1919*
109
0.0
1918*
110
0.0
1917*
111
0.0
1916*
112
0.0
1915*
113
0.0
1914*
114
0.0
1913*
115
0.0
1912*
116
0.0
1911*
117
0.0
1910*
118
0.0
1909*
119
0.0
1908*
120
0.0
1907*
121
0.0
1906*
122
0.0
1905*
123
0.0
1904*
124
0.0
1903*
125
0.0
1902*
126
0.0
1901*
127
0.0
1900*
128
0.0
1899*
129
0.0
1898*
130
0.0
1897*
131
0.0
1896*
132
0.0
1895*
133
0.0
1894*
134
0.0
1893*
135
0.0
1892*
136
0.0
1891*
137
0.0
1890*
138
0.0
1889*
139
0.0
1888*
140
0.0
1887*
141
0.0
1886*
142
0.0
1885*
143
0.0
1884*
144
0.0
1883*
145
0.0
1882*
146
0.0
1881*
147
0.0
1880*
148
0.0
1879*
149
0.0
1878*
150
0.0
1877*
151
0.0
1876*
152
0.0
1875*
153
0.0
1874*
154
0.0
1873*
155
0.0
1872*
156
0.0
1871*
1
0.0
Current year
2
0.0
Last year
Bottom annual lowest
#
Value
Date
1
0.0
1871*
2
0.0
1872*
3
0.0
1873*
4
0.0
1874*
5
0.0
1875*
6
0.0
1876*
7
0.0
1877*
8
0.0
1878*
9
0.0
1879*
10
0.0
1880*
11
0.0
1881*
12
0.0
1882*
13
0.0
1883*
14
0.0
1884*
15
0.0
1885*
16
0.0
1886*
17
0.0
1887*
18
0.0
1888*
19
0.0
1889*
20
0.0
1890*
21
0.0
1891*
22
0.0
1892*
23
0.0
1893*
24
0.0
1894*
25
0.0
1895*
26
0.0
1896*
27
0.0
1897*
28
0.0
1898*
29
0.0
1899*
30
0.0
1900*
31
0.0
1901*
32
0.0
1902*
33
0.0
1903*
34
0.0
1904*
35
0.0
1905*
36
0.0
1906*
37
0.0
1907*
38
0.0
1908*
39
0.0
1909*
40
0.0
1910*
41
0.0
1911*
42
0.0
1912*
43
0.0
1913*
44
0.0
1914*
45
0.0
1915*
46
0.0
1916*
47
0.0
1917*
48
0.0
1918*
49
0.0
1919*
50
0.0
1920*
51
0.0
1921*
52
0.0
1922*
53
0.0
1923*
54
0.0
1924*
55
0.0
1925*
56
0.0
1926*
57
0.0
1927*
58
0.0
1928*
59
0.0
1929*
60
0.0
1930*
61
0.0
1931*
62
0.0
1932*
63
0.0
1933*
64
0.0
1934*
65
0.0
1935*
66
0.0
1936*
67
0.0
1937*
68
0.0
1938*
69
0.0
1939*
70
0.0
1940*
71
0.0
1941*
72
0.0
1942*
73
0.0
1943*
74
0.0
1944*
75
0.0
1945*
76
0.0
1946*
77
0.0
1947*
78
0.0
1948*
79
0.0
1949*
80
0.0
1950*
81
0.0
1951*
82
0.0
1952*
83
0.0
1953*
84
0.0
1954*
85
0.0
1955*
86
0.0
1956*
87
0.0
1957*
88
0.0
1958*
89
0.0
1959*
90
0.0
1960*
91
0.0
1961*
92
0.0
1962*
93
0.0
1963*
94
0.0
1964*
95
0.0
1965*
96
0.0
1966*
97
0.0
1967*
98
0.0
1968*
99
0.0
1969*
100
0.0
1970*
101
0.0
1971*
102
0.0
1972*
103
0.0
1973*
104
0.0
1974*
105
0.0
1975*
106
0.0
1976*
107
0.0
1977*
108
0.0
1978*
109
0.0
1979*
110
0.0
1980*
111
0.0
1981*
112
0.0
1982*
113
0.0
1983*
114
0.0
1984*
115
0.0
1985*
116
0.0
1986*
117
0.0
1987*
118
0.0
1988*
119
0.0
1989*
120
0.0
1990*
121
0.0
1991*
122
0.0
1992*
123
0.0
1993*
124
0.0
1994*
125
0.0
1995*
126
0.0
1996*
127
0.0
1997*
128
0.0
1998*
129
0.0
1999*
130
0.0
2000*
131
0.0
2001*
132
0.0
2002*
133
0.0
2003*
134
0.0
2004*
135
0.0
2005*
136
0.0
2006*
137
0.0
2007*
138
0.0
2008*
139
0.0
2009
140
0.0
2010
141
0.0
2011
142
0.0
2012
143
0.0
2013
144
0.0
2014
145
0.0
2015
146
0.0
2016
147
0.0
2017
148
0.0
2018
149
0.0
2019
150
0.0
2020
151
0.0
2021
152
0.0
2022
153
0.0
2023
154
0.0
2024
155
0.0
2025
156
0.0
2026
156
0.0
Current year
155
0.0
Last year

Rainfall annual extremes: highest and lowest annual minima.
There are 156 valid years for the chosen period from 1871 to present in London, NW3. Data for Rainfall begins in 1871.

*Data from before 2009 are mostly from the historical site at Whitestone Pond in Hampstead. Where data from that record is missing, other nearby sites were used, including St James Park, Heathrow, and Kew Gardens (pre-1910). Best efforts have been made to adjust for site differences, but uncertainties are somewhat greater for this data. I am grateful to the Met Office for making this data available for free through the MIDAS Open database.

Total rainfall accumulated during the day (midnight to midnight, local time). Tip counts are reset at midnight.

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