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Last Full Update: 02 Aug 2026, 15:30 BSTUpdated: 02 Aug 26 15:30
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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 highest
#
Value
Date
1
39.1
2022
2
37.8
2003*
3
36.8
2019
4
36.2
2020
5
35.8
2026
6
34.8
1911*
7
34.7
1990*
8
34.2
2015
9
34.1
2025
10
34.0
1976*
11
33.9
2018
12
33.8
1959*
13
33.5
2006*
14
33.4
1995*
15
33.3
1947*
16
33.3
1932*
17
33.2
2024
18
33.0
2017
19
32.9
1906*
20
32.8
2013
21
32.7
1961*
22
32.7
1957*
23
32.7
1948*
24
32.7
1923*
25
32.7
1921*
26
32.6
2016
27
32.5
1996*
28
32.5
1989*
29
32.3
1975*
30
32.2
1994*
31
32.2
1968*
32
32.2
1933*
33
32.2
1930*
34
32.0
1881*
35
31.9
2011
36
31.9
1983*
37
31.8
2005*
38
31.7
2023
39
31.7
2021
40
31.7
2010
41
31.7
1900*
42
31.6
1943*
43
31.6
1941*
44
31.6
1884*
45
31.2
2014
46
31.2
2002*
47
31.2
2001*
48
31.2
1893*
49
31.1
1970*
50
31.1
1969*
51
31.1
1953*
52
31.1
1942*
53
31.1
1917*
54
31.1
1914*
55
31.0
1898*
56
30.9
2000*
57
30.9
1997*
58
30.9
1944*
59
30.7
1901*
60
30.7
1897*
61
30.6
2012
62
30.5
1999*
63
30.5
1952*
64
30.5
1939*
65
30.5
1929*
66
30.5
1928*
67
30.5
1918*
68
30.5
1899*
69
30.4
1973*
70
30.3
1922*
71
30.1
2004*
72
30.0
1964*
73
30.0
1950*
74
30.0
1949*
75
30.0
1937*
76
30.0
1925*
77
30.0
1912*
78
30.0
1904*
79
29.9
1998*
80
29.8
1984*
81
29.7
1926*
82
29.7
1919*
83
29.5
2009
84
29.5
1979*
85
29.5
1885*
86
29.4
1971*
87
29.4
1955*
88
29.4
1945*
89
29.4
1935*
90
29.4
1934*
91
29.4
1924*
92
29.4
1887*
93
28.9
1896*
94
28.9
1886*
95
28.8
1992*
96
28.8
1946*
97
28.8
1936*
98
28.8
1915*
99
28.7
2008*
100
28.7
2007*
101
28.7
1982*
102
28.5
1940*
103
28.4
1909*
104
28.4
1895*
105
28.4
1894*
106
28.4
1883*
107
28.3
1960*
108
28.3
1938*
109
28.3
1916*
110
28.3
1903*
111
28.2
1987*
112
28.2
1986*
113
28.1
1902*
114
28.0
1981*
115
27.8
1977*
116
27.7
1980*
117
27.7
1967*
118
27.7
1963*
119
27.6
1993*
120
27.6
1991*
121
27.6
1888*
122
27.4
1954*
123
27.3
1985*
124
27.3
1905*
125
27.2
1988*
126
27.2
1956*
127
27.2
1951*
128
27.2
1913*
129
27.1
1908*
130
27.0
1978*
131
27.0
1972*
132
27.0
1965*
133
26.9
1892*
134
26.6
1966*
135
26.6
1958*
136
26.6
1927*
137
26.6
1889*
138
26.5
1882*
139
26.4
1920*
140
26.0
1910*
141
25.8
1891*
142
25.2
1962*
143
25.1
1907*
144
25.0
1931*
145
25.0
1890*
146
24.9
1974*
5
35.8
Current year
9
34.1
Last year
Bottom annual highest
#
Value
Date
1
24.9
1974*
2
25.0
1890*
3
25.0
1931*
4
25.1
1907*
5
25.2
1962*
6
25.8
1891*
7
26.0
1910*
8
26.4
1920*
9
26.5
1882*
10
26.6
1889*
11
26.6
1927*
12
26.6
1958*
13
26.6
1966*
14
26.9
1892*
15
27.0
1965*
16
27.0
1972*
17
27.0
1978*
18
27.1
1908*
19
27.2
1913*
20
27.2
1951*
21
27.2
1956*
22
27.2
1988*
23
27.3
1905*
24
27.3
1985*
25
27.4
1954*
26
27.6
1888*
27
27.6
1991*
28
27.6
1993*
29
27.7
1963*
30
27.7
1967*
31
27.7
1980*
32
27.8
1977*
33
28.0
1981*
34
28.1
1902*
35
28.2
1986*
36
28.2
1987*
37
28.3
1903*
38
28.3
1916*
39
28.3
1938*
40
28.3
1960*
41
28.4
1883*
42
28.4
1894*
43
28.4
1895*
44
28.4
1909*
45
28.5
1940*
46
28.7
1982*
47
28.7
2007*
48
28.7
2008*
49
28.8
1915*
50
28.8
1936*
51
28.8
1946*
52
28.8
1992*
53
28.9
1886*
54
28.9
1896*
55
29.4
1887*
56
29.4
1924*
57
29.4
1934*
58
29.4
1935*
59
29.4
1945*
60
29.4
1955*
61
29.4
1971*
62
29.5
1885*
63
29.5
1979*
64
29.5
2009
65
29.7
1919*
66
29.7
1926*
67
29.8
1984*
68
29.9
1998*
69
30.0
1904*
70
30.0
1912*
71
30.0
1925*
72
30.0
1937*
73
30.0
1949*
74
30.0
1950*
75
30.0
1964*
76
30.1
2004*
77
30.3
1922*
78
30.4
1973*
79
30.5
1899*
80
30.5
1918*
81
30.5
1928*
82
30.5
1929*
83
30.5
1939*
84
30.5
1952*
85
30.5
1999*
86
30.6
2012
87
30.7
1897*
88
30.7
1901*
89
30.9
1944*
90
30.9
1997*
91
30.9
2000*
92
31.0
1898*
93
31.1
1914*
94
31.1
1917*
95
31.1
1942*
96
31.1
1953*
97
31.1
1969*
98
31.1
1970*
99
31.2
1893*
100
31.2
2001*
101
31.2
2002*
102
31.2
2014
103
31.6
1884*
104
31.6
1941*
105
31.6
1943*
106
31.7
1900*
107
31.7
2010
108
31.7
2021
109
31.7
2023
110
31.8
2005*
111
31.9
1983*
112
31.9
2011
113
32.0
1881*
114
32.2
1930*
115
32.2
1933*
116
32.2
1968*
117
32.2
1994*
118
32.3
1975*
119
32.5
1989*
120
32.5
1996*
121
32.6
2016
122
32.7
1921*
123
32.7
1923*
124
32.7
1948*
125
32.7
1957*
126
32.7
1961*
127
32.8
2013
128
32.9
1906*
129
33.0
2017
130
33.2
2024
131
33.3
1932*
132
33.3
1947*
133
33.4
1995*
134
33.5
2006*
135
33.8
1959*
136
33.9
2018
137
34.0
1976*
138
34.1
2025
139
34.2
2015
140
34.7
1990*
141
34.8
1911*
142
35.8
2026
143
36.2
2020
144
36.8
2019
145
37.8
2003*
146
39.1
2022
142
35.8
Current year
138
34.1
Last year

Day Maximum (09-21) annual extremes: highest and lowest annual maxima.
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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