Record envelope, standing records and threshold days for Hampstead (UKE00105915), United Kingdom, with 58 years of record.
Key Facts for Hampstead
Hampstead (UKE00105915) is a weather station in United Kingdom at 51.56 latitude and 0.18 longitude, 137 m (449 ft) above sea level.
The station reports from 1959 to 2016, 58 years of record.
1,464 records set at Hampstead still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Hampstead set a daily record high minimum temperature of 17.4 C (63.3 F) on 17 July 2016.
About the Station
Location: United Kingdom, 51.56 latitude, 0.18 longitude.
Elevation: 137 m (449 ft).
Period of record: 1959 to 2016, 58 years.
Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Hampstead. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Hampstead, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
15.7 C (60.3 F)
-11.9 C (10.6 F)
n/a
n/a
Feb
18.3 C (64.9 F)
-8.5 C (16.7 F)
n/a
n/a
Mar
22.8 C (73.0 F)
-7.2 C (19.0 F)
n/a
n/a
Apr
26.3 C (79.3 F)
-3.2 C (26.2 F)
n/a
n/a
May
29.8 C (85.6 F)
-0.6 C (30.9 F)
n/a
n/a
Jun
34.2 C (93.6 F)
1.7 C (35.1 F)
n/a
n/a
Jul
34.4 C (93.9 F)
4.2 C (39.6 F)
n/a
n/a
Aug
37.4 C (99.3 F)
4.5 C (40.1 F)
n/a
n/a
Sep
29.4 C (84.9 F)
2.4 C (36.3 F)
n/a
n/a
Oct
27.4 C (81.3 F)
-2.4 C (27.7 F)
n/a
n/a
Nov
17.9 C (64.2 F)
-5.6 C (21.9 F)
n/a
n/a
Dec
15.6 C (60.1 F)
-8.4 C (16.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Hampstead still stand. 2006 holds the most, with 50.
Standing records at Hampstead by the year they were set
Year set
Standing records
1960
21
1961
25
1962
44
1963
39
1964
23
1965
34
1966
18
1967
17
1968
14
1969
28
1970
27
1971
18
1972
18
1973
17
1974
27
1975
33
1976
39
1977
21
1978
31
1979
28
1980
33
1981
31
1982
16
1983
20
1984
11
1985
47
1986
35
1987
36
1988
11
1989
21
1990
32
1991
26
1992
12
1993
26
1994
26
1995
24
1996
30
1997
28
1998
24
1999
22
2000
26
2001
17
2002
17
2003
36
2004
21
2005
43
2006
50
2007
25
2008
21
2009
8
2010
36
2011
28
2012
28
2013
16
2014
19
2015
30
2016
10
All-Time Record Progression
4 new records
4 all-time records were set at Hampstead between 2 August 1990 and 9 August 2003. Each dot is a new record.
When Hampstead set new all-time records
Date
Kind
Detail
1990-08-02
Record high maximum temperature
Record high maximum temperature 34.6 C (94.3 F)
1997-08-11
Record high minimum temperature
Record high minimum temperature 21.6 C (70.9 F)
2003-08-05
Record high maximum temperature
Record high maximum temperature 35.2 C (95.4 F)
2003-08-09
Record high maximum temperature
Record high maximum temperature 37.4 C (99.3 F)
Wettest Day of Each Month
Aug: 79.6 mm (3.1 in)
The wettest day on record for each calendar month at Hampstead. The most was 79.6 mm (3.1 in) on 16 August 1977.
Record daily precipitation for each month at Hampstead
Month
Record daily precipitation (mm)
Date
Jan
25.9 mm (1.0 in)
2 January 1986
Feb
23.7 mm (0.9 in)
3 February 2002
Mar
24.9 mm (1.0 in)
13 March 1979
Apr
36.6 mm (1.4 in)
28 April 2012
May
51.0 mm (2.0 in)
1 May 2010
Jun
41.0 mm (1.6 in)
10 June 1971
Jul
43.6 mm (1.7 in)
20 July 1992
Aug
79.6 mm (3.1 in)
16 August 1977
Sep
60.3 mm (2.4 in)
22 September 1992
Oct
48.8 mm (1.9 in)
9 October 1987
Nov
36.6 mm (1.4 in)
14 November 1970
Dec
33.3 mm (1.3 in)
19 December 1995
Period of Record Coverage
1959 to 2016
Complete yearUnder 90 percent of days
58 years of record at Hampstead, 1959 to 2016. 4 years have data for under 90 percent of days and are left out of rankings: 1959, 1968, 1995, 2016.
Cooler than the station meanWarmer than the station mean
One stripe for each of 49 complete years at Hampstead, 1960 to 2015. Blue stripes are years cooler than the station's own mean of 10.3 C (50.6 F); red stripes are warmer. The coolest year was 1963, at 8.6 C (47.6 F), and the warmest was 2014, at 11.9 C (53.4 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Hampstead as warming stripes, 1960 to 2015
Year
Annual mean temperature
Difference from the station mean
1960
10.0 C
-0.35 C
1961
10.6 C
+0.21 C
1962
8.8 C
-1.58 C
1963
8.6 C
-1.70 C
1964
9.8 C
-0.59 C
1965
9.2 C
-1.19 C
1966
10.0 C
-0.34 C
1967
10.0 C
-0.30 C
1971
9.8 C
-0.54 C
1972
9.5 C
-0.84 C
1973
10.0 C
-0.33 C
1976
10.6 C
+0.25 C
1977
9.6 C
-0.71 C
1978
9.5 C
-0.80 C
1979
9.2 C
-1.11 C
1980
9.5 C
-0.82 C
1981
9.4 C
-0.90 C
1982
10.3 C
0.00 C
1983
10.4 C
+0.04 C
1984
10.2 C
-0.10 C
1985
9.4 C
-0.97 C
1986
9.3 C
-1.04 C
1987
9.5 C
-0.81 C
1988
10.3 C
-0.04 C
1989
11.4 C
+1.07 C
1990
11.3 C
+0.97 C
1991
10.0 C
-0.31 C
1992
10.4 C
+0.08 C
1993
10.1 C
-0.27 C
1994
11.0 C
+0.64 C
1996
9.8 C
-0.58 C
1997
11.3 C
+0.95 C
1998
10.8 C
+0.50 C
1999
11.3 C
+0.93 C
2000
10.9 C
+0.55 C
2001
10.6 C
+0.22 C
2002
11.3 C
+0.98 C
2003
11.4 C
+1.02 C
2004
11.1 C
+0.73 C
2005
11.0 C
+0.70 C
2006
11.6 C
+1.23 C
2007
11.3 C
+0.96 C
2008
10.7 C
+0.31 C
2009
10.8 C
+0.46 C
2011
11.5 C
+1.20 C
2012
10.5 C
+0.20 C
2013
10.2 C
-0.19 C
2014
11.9 C
+1.55 C
2015
11.2 C
+0.84 C
The annual mean temperature here has risen by 0.4 C (0.3 to 0.5) per decade over 1960 to 2015. In Fahrenheit: 0.6 F (0.5 to 0.8) per decade. The slope is a straight line fitted to 49 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Hampstead
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.4 C (0.3 to 0.5) per decade
0.6 F (0.5 to 0.8) per decade
1960 to 2015
49
Rise
Mean daily maximum
0.4 C (0.3 to 0.5) per decade
0.7 F (0.5 to 0.9) per decade
1960 to 2015
49
Rise
Mean daily minimum
0.3 C (0.2 to 0.4) per decade
0.6 F (0.4 to 0.7) per decade
1960 to 2015
49
Rise
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1959 to 2016
Yearly extremes at Hampstead: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
37.4 C (99.3 F)
2003
29.6 C (85.3 F)
58
Coldest night (TNn)
-11.9 C (10.6 F)
1987
-5.2 C (22.6 F)
57
Wettest day (Rx1day)
79.6 mm (3.1 in)
1977
35.1 mm (1.4 in)
56
Wettest five days (Rx5day)
97.5 mm (3.8 in)
2002
58.6 mm (2.3 in)
56
Longest dry spell (CDD)
38 days
1976
21 days
56
Hottest day (TXx)
The hottest day of the year at Hampstead, 1959 to 2016. The record is 37.4 C (99.3 F) in 2003, marked on the chart; the median year is 29.6 C (85.3 F).
Hottest day (TXx) at Hampstead by year
Year
Hottest day (TXx)
1959
10.6 C (51.1 F)
1960
27.8 C (82.0 F)
1961
32.8 C (91.0 F)
1962
25.0 C (77.0 F)
1963
26.1 C (79.0 F)
1964
29.4 C (84.9 F)
1965
27.8 C (82.0 F)
1966
27.2 C (81.0 F)
1967
27.8 C (82.0 F)
1968
32.2 C (90.0 F)
1969
31.0 C (87.8 F)
1970
30.6 C (87.1 F)
1971
28.9 C (84.0 F)
1972
25.7 C (78.3 F)
1973
30.7 C (87.3 F)
1974
25.4 C (77.7 F)
1975
32.0 C (89.6 F)
1976
33.7 C (92.7 F)
1977
26.6 C (79.9 F)
1978
26.0 C (78.8 F)
1979
29.6 C (85.3 F)
1980
27.8 C (82.0 F)
1981
27.8 C (82.0 F)
1982
28.0 C (82.4 F)
1983
32.1 C (89.8 F)
1984
30.2 C (86.4 F)
1985
26.7 C (80.1 F)
1986
28.1 C (82.6 F)
1987
27.9 C (82.2 F)
1988
26.8 C (80.2 F)
1989
31.8 C (89.2 F)
1990
34.6 C (94.3 F)
1991
27.8 C (82.0 F)
1992
28.0 C (82.4 F)
1993
27.1 C (80.8 F)
1994
31.3 C (88.3 F)
1995
33.4 C (92.1 F)
1996
30.8 C (87.4 F)
1997
29.9 C (85.8 F)
1998
28.9 C (84.0 F)
1999
30.1 C (86.2 F)
2000
30.5 C (86.9 F)
2001
30.8 C (87.4 F)
2002
30.8 C (87.4 F)
2003
37.4 C (99.3 F)
2004
30.8 C (87.4 F)
2005
31.8 C (89.2 F)
2006
34.4 C (93.9 F)
2007
28.9 C (84.0 F)
2008
28.3 C (82.9 F)
2009
28.4 C (83.1 F)
2010
29.9 C (85.8 F)
2011
30.9 C (87.6 F)
2012
29.6 C (85.3 F)
2013
33.0 C (91.4 F)
2014
30.5 C (86.9 F)
2015
34.2 C (93.6 F)
2016
26.4 C (79.5 F)
Coldest night (TNn)
The coldest night of the year at Hampstead, 1959 to 2016. The record is -11.9 C (10.6 F) in 1987, marked on the chart; the median year is -5.2 C (22.6 F).
Coldest night (TNn) at Hampstead by year
Year
Coldest night (TNn)
1959
n/a
1960
-5.6 C (21.9 F)
1961
-5.0 C (23.0 F)
1962
-7.8 C (18.0 F)
1963
-11.7 C (10.9 F)
1964
-6.1 C (21.0 F)
1965
-7.2 C (19.0 F)
1966
-7.8 C (18.0 F)
1967
-6.7 C (19.9 F)
1968
-6.7 C (19.9 F)
1969
-7.5 C (18.5 F)
1970
-6.0 C (21.2 F)
1971
-6.2 C (20.8 F)
1972
-7.8 C (18.0 F)
1973
-4.0 C (24.8 F)
1974
-1.7 C (28.9 F)
1975
-3.5 C (25.7 F)
1976
-5.2 C (22.6 F)
1977
-3.0 C (26.6 F)
1978
-6.9 C (19.6 F)
1979
-7.2 C (19.0 F)
1980
-4.5 C (23.9 F)
1981
-8.4 C (16.9 F)
1982
-6.5 C (20.3 F)
1983
-4.2 C (24.4 F)
1984
-3.3 C (26.1 F)
1985
-7.3 C (18.9 F)
1986
-7.7 C (18.1 F)
1987
-11.9 C (10.6 F)
1988
-3.9 C (25.0 F)
1989
-3.8 C (25.2 F)
1990
-1.9 C (28.6 F)
1991
-8.5 C (16.7 F)
1992
-3.4 C (25.9 F)
1993
-5.9 C (21.4 F)
1994
-4.7 C (23.5 F)
1995
-4.5 C (23.9 F)
1996
-6.4 C (20.5 F)
1997
-5.6 C (21.9 F)
1998
-3.6 C (25.5 F)
1999
-5.0 C (23.0 F)
2000
-5.2 C (22.6 F)
2001
-3.6 C (25.5 F)
2002
-4.7 C (23.5 F)
2003
-4.8 C (23.4 F)
2004
-4.4 C (24.1 F)
2005
-4.5 C (23.9 F)
2006
-5.2 C (22.6 F)
2007
-3.7 C (25.3 F)
2008
-3.1 C (26.4 F)
2009
-6.0 C (21.2 F)
2010
-6.4 C (20.5 F)
2011
-3.0 C (26.6 F)
2012
-6.9 C (19.6 F)
2013
-3.9 C (25.0 F)
2014
-2.4 C (27.7 F)
2015
-3.6 C (25.5 F)
2016
-2.8 C (27.0 F)
Wettest day (Rx1day)
The wettest day of the year at Hampstead, 1959 to 2016. The record is 79.6 mm (3.1 in) in 1977, marked on the chart; the median year is 35.1 mm (1.4 in).
Wettest day (Rx1day) at Hampstead by year
Year
Wettest day (Rx1day)
1959
n/a
1960
44.4 mm (1.7 in)
1961
26.2 mm (1.0 in)
1962
39.1 mm (1.5 in)
1963
29.2 mm (1.1 in)
1964
34.5 mm (1.4 in)
1965
13.7 mm (0.5 in)
1966
43.4 mm (1.7 in)
1967
30.7 mm (1.2 in)
1968
37.3 mm (1.5 in)
1969
45.5 mm (1.8 in)
1970
36.6 mm (1.4 in)
1971
41.0 mm (1.6 in)
1972
23.5 mm (0.9 in)
1973
44.8 mm (1.8 in)
1974
35.0 mm (1.4 in)
1975
48.1 mm (1.9 in)
1976
26.1 mm (1.0 in)
1977
79.6 mm (3.1 in)
1978
38.8 mm (1.5 in)
1979
25.3 mm (1.0 in)
1980
46.9 mm (1.8 in)
1981
33.6 mm (1.3 in)
1982
30.2 mm (1.2 in)
1983
28.4 mm (1.1 in)
1984
44.7 mm (1.8 in)
1985
28.0 mm (1.1 in)
1986
32.2 mm (1.3 in)
1987
48.8 mm (1.9 in)
1988
36.1 mm (1.4 in)
1989
28.3 mm (1.1 in)
1990
18.9 mm (0.7 in)
1991
33.3 mm (1.3 in)
1992
60.3 mm (2.4 in)
1993
38.6 mm (1.5 in)
1994
45.2 mm (1.8 in)
1995
33.3 mm (1.3 in)
1996
n/a
1997
15.9 mm (0.6 in)
1998
29.6 mm (1.2 in)
1999
27.0 mm (1.1 in)
2000
47.0 mm (1.9 in)
2001
35.5 mm (1.4 in)
2002
71.5 mm (2.8 in)
2003
26.5 mm (1.0 in)
2004
31.7 mm (1.2 in)
2005
24.4 mm (1.0 in)
2006
23.9 mm (0.9 in)
2007
29.0 mm (1.1 in)
2008
35.2 mm (1.4 in)
2009
53.2 mm (2.1 in)
2010
51.0 mm (2.0 in)
2011
22.0 mm (0.9 in)
2012
36.6 mm (1.4 in)
2013
40.8 mm (1.6 in)
2014
36.6 mm (1.4 in)
2015
38.2 mm (1.5 in)
2016
26.4 mm (1.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Hampstead, 1959 to 2016. The record is 97.5 mm (3.8 in) in 2002, marked on the chart; the median year is 58.6 mm (2.3 in).
Wettest five days (Rx5day) at Hampstead by year
Year
Wettest five days (Rx5day)
1959
n/a
1960
59.1 mm (2.3 in)
1961
47.2 mm (1.9 in)
1962
53.6 mm (2.1 in)
1963
60.7 mm (2.4 in)
1964
77.6 mm (3.1 in)
1965
30.0 mm (1.2 in)
1966
61.1 mm (2.4 in)
1967
52.5 mm (2.1 in)
1968
85.1 mm (3.4 in)
1969
75.5 mm (3.0 in)
1970
67.5 mm (2.7 in)
1971
77.4 mm (3.0 in)
1972
44.7 mm (1.8 in)
1973
58.5 mm (2.3 in)
1974
77.7 mm (3.1 in)
1975
65.7 mm (2.6 in)
1976
45.6 mm (1.8 in)
1977
87.3 mm (3.4 in)
1978
69.0 mm (2.7 in)
1979
49.2 mm (1.9 in)
1980
62.7 mm (2.5 in)
1981
38.9 mm (1.5 in)
1982
46.5 mm (1.8 in)
1983
38.3 mm (1.5 in)
1984
53.6 mm (2.1 in)
1985
42.1 mm (1.7 in)
1986
45.6 mm (1.8 in)
1987
84.7 mm (3.3 in)
1988
57.4 mm (2.3 in)
1989
67.0 mm (2.6 in)
1990
51.5 mm (2.0 in)
1991
54.2 mm (2.1 in)
1992
73.5 mm (2.9 in)
1993
64.0 mm (2.5 in)
1994
54.2 mm (2.1 in)
1995
71.0 mm (2.8 in)
1996
n/a
1997
33.2 mm (1.3 in)
1998
50.2 mm (2.0 in)
1999
63.3 mm (2.5 in)
2000
72.7 mm (2.9 in)
2001
58.6 mm (2.3 in)
2002
97.5 mm (3.8 in)
2003
77.7 mm (3.1 in)
2004
55.9 mm (2.2 in)
2005
43.5 mm (1.7 in)
2006
46.3 mm (1.8 in)
2007
54.6 mm (2.1 in)
2008
78.7 mm (3.1 in)
2009
59.8 mm (2.4 in)
2010
63.8 mm (2.5 in)
2011
35.4 mm (1.4 in)
2012
71.8 mm (2.8 in)
2013
56.6 mm (2.2 in)
2014
77.0 mm (3.0 in)
2015
45.2 mm (1.8 in)
2016
48.8 mm (1.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Hampstead, 1959 to 2016. The record is 38 days in 1976, marked on the chart; the median year is 21 days.
Longest dry spell (CDD) at Hampstead by year
Year
Longest dry spell (CDD)
1959
n/a
1960
28 days
1961
28 days
1962
22 days
1963
15 days
1964
21 days
1965
12 days
1966
21 days
1967
20 days
1968
14 days
1969
27 days
1970
32 days
1971
33 days
1972
32 days
1973
20 days
1974
22 days
1975
16 days
1976
38 days
1977
24 days
1978
22 days
1979
15 days
1980
19 days
1981
18 days
1982
21 days
1983
26 days
1984
20 days
1985
22 days
1986
28 days
1987
20 days
1988
17 days
1989
30 days
1990
38 days
1991
25 days
1992
18 days
1993
27 days
1994
16 days
1995
31 days
1996
n/a
1997
23 days
1998
20 days
1999
20 days
2000
20 days
2001
23 days
2002
31 days
2003
24 days
2004
17 days
2005
21 days
2006
19 days
2007
27 days
2008
18 days
2009
19 days
2010
18 days
2011
31 days
2012
16 days
2013
19 days
2014
16 days
2015
20 days
2016
14 days
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
49 years with a frost
Across 49 years with a frost, the median last spring frost at Hampstead falls on 10 April and the median first autumn frost on 17 November, which leaves a median of 225 days between them.
Fitted over all years, the growing season changes by +3.8 days per decade at this station.
Frost dates and growing season at Hampstead
Measure
Median, all years
Earliest period
Recent period (1984 to 2015)
Recent against earliest
Fitted trend
Last spring frost
10 April
n/a
8 April
n/a
-2.1 days per decade
First autumn frost
17 November
n/a
18 November
n/a
+1.7 days per decade
Growing days
225 days
n/a
234 days
n/a
+3.8 days per decade
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
53 years, 1960 to 2015
A day with at least 35.0 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 76.4 mm (3.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Hampstead: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
35.0 mm (1.4 in)
5 years
45.2 mm (1.8 in)
10 years
52.3 mm (2.1 in)
25 years
61.6 mm (2.4 in)
50 years
68.9 mm (2.7 in)
100 years
76.4 mm (3.0 in)
Longer than the 53 years of record
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 53 years of values from 1960 to 2015.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 79.6 mm (3.1 in) in 1977; 71.5 mm (2.8 in) in 2002; 60.3 mm (2.4 in) in 1992.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Hampstead, at 1984. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1984 ran 0.1 C (0.2 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Hampstead, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1984
+0.1
+0.2
possible
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Hampstead standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hampstead threshold days by year: CSV or JSON. Field meanings are on the data page.
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.