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Last Full Update: 02 Aug 2026, 14:15 BSTUpdated: 02 Aug 26 14:15
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Historical Ranked Annual Data - Day Maximum (09-21) / °C

MeanMinMaxRangeNight minDay maxFeels meanFeels minFeels max
Annual
MeanLowestHighestRangeCount ≥Count <
Threshold
-5.00.05.010.015.020.025.030.0
Start year
18811950198020002009

Top annual mean
#
Value
Date
1
17.6
2026
2
16.3
2022
3
16.3
2025
4
15.9
2020
5
15.8
2014
6
15.8
2018
7
15.8
2023
8
15.7
2003*
9
15.7
1921*
10
15.5
1995*
11
15.5
1949*
12
15.5
2011
13
15.5
2017
14
15.5
2024
15
15.5
1989*
16
15.4
1990*
17
15.4
2019
18
15.2
1999*
19
15.2
2006*
20
15.2
1959*
21
15.2
2002*
22
15.2
2016
23
15.2
2015
24
15.1
1997*
25
15.1
2007*
26
15.0
1994*
27
14.9
2005*
28
14.8
2009
29
14.8
1976*
30
14.7
2004*
31
14.7
2000*
32
14.7
2021
33
14.6
1998*
34
14.6
1948*
35
14.6
1961*
36
14.6
1943*
37
14.6
1893*
38
14.6
1938*
39
14.5
1992*
40
14.5
1945*
41
14.5
1934*
42
14.4
2008*
43
14.4
1933*
44
14.4
1911*
45
14.4
2001*
46
14.4
2012
47
14.4
1983*
48
14.3
1947*
49
14.3
1914*
50
14.3
1928*
51
14.2
1993*
52
14.2
1957*
53
14.2
1982*
54
14.2
1898*
55
14.2
1920*
56
14.2
1975*
57
14.2
1899*
58
14.1
1906*
59
14.1
1935*
60
14.0
1984*
61
14.0
1973*
62
14.0
2013
63
14.0
1971*
64
13.9
1913*
65
13.9
1937*
66
13.9
1918*
67
13.9
1970*
68
13.9
1929*
69
13.9
1884*
70
13.9
1988*
71
13.9
1953*
72
13.8
1939*
73
13.8
1926*
74
13.8
1900*
75
13.8
1944*
76
13.8
1930*
77
13.8
1960*
78
13.8
1991*
79
13.8
1967*
80
13.7
1969*
81
13.7
1950*
82
13.7
1964*
83
13.7
1966*
84
13.7
1974*
85
13.6
1955*
86
13.6
2010
87
13.6
1951*
88
13.6
1996*
89
13.6
1932*
90
13.5
1916*
91
13.5
1940*
92
13.5
1978*
93
13.5
1925*
94
13.5
1908*
95
13.5
1912*
96
13.5
1897*
97
13.4
1923*
98
13.4
1952*
99
13.4
1972*
100
13.4
1896*
101
13.4
1936*
102
13.4
1977*
103
13.4
1882*
104
13.4
1915*
105
13.4
1980*
106
13.4
1958*
107
13.4
1901*
108
13.3
1904*
109
13.3
1981*
110
13.3
1903*
111
13.3
1895*
112
13.3
1924*
113
13.3
1905*
114
13.2
1883*
115
13.2
1942*
116
13.2
1907*
117
13.2
1894*
118
13.2
1987*
119
13.2
1968*
120
13.2
1922*
121
13.2
1927*
122
13.1
1954*
123
13.1
1941*
124
13.1
1979*
125
13.0
1919*
126
13.0
1931*
127
13.0
1985*
128
13.0
1946*
129
13.0
1986*
130
13.0
1965*
131
13.0
1910*
132
12.9
1902*
133
12.9
1881*
134
12.9
1917*
135
12.8
1956*
136
12.7
1909*
137
12.7
1890*
138
12.6
1886*
139
12.6
1889*
140
12.6
1885*
141
12.6
1962*
142
12.4
1891*
143
12.4
1892*
144
12.4
1963*
145
12.3
1887*
146
11.9
1888*
1
17.6
Current year
3
16.3
Last year
Bottom annual mean
#
Value
Date
1
11.9
1888*
2
12.3
1887*
3
12.4
1963*
4
12.4
1892*
5
12.4
1891*
6
12.6
1962*
7
12.6
1885*
8
12.6
1889*
9
12.6
1886*
10
12.7
1890*
11
12.7
1909*
12
12.8
1956*
13
12.9
1917*
14
12.9
1881*
15
12.9
1902*
16
13.0
1910*
17
13.0
1965*
18
13.0
1986*
19
13.0
1946*
20
13.0
1985*
21
13.0
1931*
22
13.0
1919*
23
13.1
1979*
24
13.1
1941*
25
13.1
1954*
26
13.2
1927*
27
13.2
1922*
28
13.2
1968*
29
13.2
1987*
30
13.2
1894*
31
13.2
1907*
32
13.2
1942*
33
13.2
1883*
34
13.3
1905*
35
13.3
1924*
36
13.3
1895*
37
13.3
1903*
38
13.3
1981*
39
13.3
1904*
40
13.4
1901*
41
13.4
1958*
42
13.4
1980*
43
13.4
1915*
44
13.4
1882*
45
13.4
1977*
46
13.4
1936*
47
13.4
1896*
48
13.4
1972*
49
13.4
1952*
50
13.4
1923*
51
13.5
1897*
52
13.5
1912*
53
13.5
1908*
54
13.5
1925*
55
13.5
1978*
56
13.5
1940*
57
13.5
1916*
58
13.6
1932*
59
13.6
1996*
60
13.6
1951*
61
13.6
2010
62
13.6
1955*
63
13.7
1974*
64
13.7
1966*
65
13.7
1964*
66
13.7
1950*
67
13.7
1969*
68
13.8
1967*
69
13.8
1991*
70
13.8
1960*
71
13.8
1930*
72
13.8
1944*
73
13.8
1900*
74
13.8
1926*
75
13.8
1939*
76
13.9
1953*
77
13.9
1988*
78
13.9
1884*
79
13.9
1929*
80
13.9
1970*
81
13.9
1918*
82
13.9
1937*
83
13.9
1913*
84
14.0
1971*
85
14.0
2013
86
14.0
1973*
87
14.0
1984*
88
14.1
1935*
89
14.1
1906*
90
14.2
1899*
91
14.2
1975*
92
14.2
1920*
93
14.2
1898*
94
14.2
1982*
95
14.2
1957*
96
14.2
1993*
97
14.3
1928*
98
14.3
1914*
99
14.3
1947*
100
14.4
1983*
101
14.4
2012
102
14.4
2001*
103
14.4
1911*
104
14.4
1933*
105
14.4
2008*
106
14.5
1934*
107
14.5
1945*
108
14.5
1992*
109
14.6
1938*
110
14.6
1893*
111
14.6
1943*
112
14.6
1961*
113
14.6
1948*
114
14.6
1998*
115
14.7
2021
116
14.7
2000*
117
14.7
2004*
118
14.8
1976*
119
14.8
2009
120
14.9
2005*
121
15.0
1994*
122
15.1
2007*
123
15.1
1997*
124
15.2
2015
125
15.2
2016
126
15.2
2002*
127
15.2
1959*
128
15.2
2006*
129
15.2
1999*
130
15.4
2019
131
15.4
1990*
132
15.5
1989*
133
15.5
2024
134
15.5
2017
135
15.5
2011
136
15.5
1949*
137
15.5
1995*
138
15.7
1921*
139
15.7
2003*
140
15.8
2023
141
15.8
2018
142
15.8
2014
143
15.9
2020
144
16.3
2025
145
16.3
2022
146
17.6
2026
146
17.6
Current year
144
16.3
Last year

Day Maximum (09-21) annual extremes: highest and lowest annual means.
There are 146 valid years for the chosen period from 1881 to present in London, NW3. Data for Day Maximum (09-21) begins in 1881.

*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.

Highest air temperature during the daytime window 09:00 to 21:00 local time.

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