Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Watford. 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 Watford, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
8.9 C (48.0 F)
-27.2 C (-17.0 F)
n/a
n/a
Feb
10.0 C (50.0 F)
-24.4 C (-11.9 F)
n/a
n/a
Mar
21.7 C (71.1 F)
-20.6 C (-5.1 F)
n/a
n/a
Apr
31.7 C (89.1 F)
-10.6 C (12.9 F)
n/a
n/a
May
28.3 C (82.9 F)
-5.0 C (23.0 F)
n/a
n/a
Jun
36.1 C (97.0 F)
1.1 C (34.0 F)
n/a
n/a
Jul
36.1 C (97.0 F)
5.6 C (42.1 F)
n/a
n/a
Aug
36.1 C (97.0 F)
6.1 C (43.0 F)
n/a
n/a
Sep
32.8 C (91.0 F)
0.0 C (32.0 F)
n/a
n/a
Oct
30.6 C (87.1 F)
-8.3 C (17.1 F)
n/a
n/a
Nov
21.1 C (70.0 F)
-10.0 C (14.0 F)
n/a
n/a
Dec
13.9 C (57.0 F)
-24.4 C (-11.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Watford still stand. 1925 holds the most, with 342.
Standing records at Watford by the year they were set
Year set
Standing records
1924
55
1925
342
1926
330
1927
341
1928
302
1929
94
Wettest Day of Each Month
Jun: 130.8 mm (5.1 in)
The wettest day on record for each calendar month at Watford. The most was 130.8 mm (5.1 in) on 27 June 1885.
Record daily precipitation for each month at Watford
Month
Record daily precipitation (mm)
Date
Jan
34.8 mm (1.4 in)
18 January 1926
Feb
76.2 mm (3.0 in)
23 February 1925
Mar
36.1 mm (1.4 in)
31 March 1929
Apr
45.7 mm (1.8 in)
29 April 1909
May
63.5 mm (2.5 in)
30 May 1889
Jun
130.8 mm (5.1 in)
27 June 1885
Jul
121.9 mm (4.8 in)
24 July 1910
Aug
127.0 mm (5.0 in)
10 August 1892
Sep
67.3 mm (2.6 in)
9 September 1922
Oct
59.7 mm (2.4 in)
22 October 1899
Nov
45.7 mm (1.8 in)
25 November 1928
Dec
29.2 mm (1.1 in)
13 December 1927
Period of Record Coverage
1924 to 1929
Complete yearUnder 90 percent of days
6 years of record at Watford, 1924 to 1929. 2 years have data for under 90 percent of days and are left out of rankings: 1924, 1929.
Yearly extremes at Watford: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
36.1 C (97.0 F)
1925
33.1 C (91.5 F)
6
Coldest night (TNn)
-27.2 C (-17.0 F)
1925
-24.4 C (-11.9 F)
6
Wettest day (Rx1day)
130.8 mm (5.1 in)
1885
48.5 mm (1.9 in)
49
Wettest five days (Rx5day)
172.7 mm (6.8 in)
1921
68.1 mm (2.7 in)
49
Longest dry spell (CDD)
34 days
1894
17 days
49
Hottest day (TXx)
The hottest day of the year at Watford, 1883 to 1961. The record is 36.1 C (97.0 F) in 1925, marked on the chart; the median year is 33.1 C (91.5 F).
Hottest day (TXx) at Watford by year
Year
Hottest day (TXx)
1883
n/a
1884
n/a
1885
n/a
1886
n/a
1887
n/a
1888
n/a
1889
n/a
1890
n/a
1891
n/a
1892
n/a
1893
n/a
1894
n/a
1895
n/a
1896
n/a
1897
n/a
1898
n/a
1899
n/a
1900
n/a
1901
n/a
1902
n/a
1903
n/a
1904
n/a
1905
n/a
1906
n/a
1907
n/a
1908
n/a
1909
n/a
1910
n/a
1911
n/a
1912
n/a
1913
n/a
1914
n/a
1915
n/a
1916
n/a
1917
n/a
1918
n/a
1919
n/a
1920
n/a
1921
n/a
1922
n/a
1923
n/a
1924
21.1 C (70.0 F)
1925
36.1 C (97.0 F)
1926
36.1 C (97.0 F)
1927
33.9 C (93.0 F)
1928
32.2 C (90.0 F)
1929
26.7 C (80.1 F)
1960
n/a
1961
n/a
Coldest night (TNn)
The coldest night of the year at Watford, 1883 to 1961. The record is -27.2 C (-17.0 F) in 1925, marked on the chart; the median year is -24.4 C (-11.9 F).
Coldest night (TNn) at Watford by year
Year
Coldest night (TNn)
1883
n/a
1884
n/a
1885
n/a
1886
n/a
1887
n/a
1888
n/a
1889
n/a
1890
n/a
1891
n/a
1892
n/a
1893
n/a
1894
n/a
1895
n/a
1896
n/a
1897
n/a
1898
n/a
1899
n/a
1900
n/a
1901
n/a
1902
n/a
1903
n/a
1904
n/a
1905
n/a
1906
n/a
1907
n/a
1908
n/a
1909
n/a
1910
n/a
1911
n/a
1912
n/a
1913
n/a
1914
n/a
1915
n/a
1916
n/a
1917
n/a
1918
n/a
1919
n/a
1920
n/a
1921
n/a
1922
n/a
1923
n/a
1924
-24.4 C (-11.9 F)
1925
-27.2 C (-17.0 F)
1926
-21.7 C (-7.1 F)
1927
-25.0 C (-13.0 F)
1928
-24.4 C (-11.9 F)
1929
-24.4 C (-11.9 F)
1960
n/a
1961
n/a
Wettest day (Rx1day)
The wettest day of the year at Watford, 1883 to 1961. The record is 130.8 mm (5.1 in) in 1885, marked on the chart; the median year is 48.5 mm (1.9 in).
Wettest day (Rx1day) at Watford by year
Year
Wettest day (Rx1day)
1883
46.0 mm (1.8 in)
1884
27.9 mm (1.1 in)
1885
130.8 mm (5.1 in)
1886
43.2 mm (1.7 in)
1887
30.5 mm (1.2 in)
1888
33.0 mm (1.3 in)
1889
63.5 mm (2.5 in)
1890
44.5 mm (1.8 in)
1891
53.3 mm (2.1 in)
1892
127.0 mm (5.0 in)
1893
35.6 mm (1.4 in)
1894
57.9 mm (2.3 in)
1895
33.0 mm (1.3 in)
1896
49.5 mm (1.9 in)
1897
45.7 mm (1.8 in)
1898
39.4 mm (1.6 in)
1899
59.7 mm (2.4 in)
1900
45.7 mm (1.8 in)
1901
50.8 mm (2.0 in)
1902
35.6 mm (1.4 in)
1903
73.7 mm (2.9 in)
1904
127.0 mm (5.0 in)
1905
57.7 mm (2.3 in)
1906
55.9 mm (2.2 in)
1907
26.9 mm (1.1 in)
1908
63.5 mm (2.5 in)
1909
45.7 mm (1.8 in)
1910
121.9 mm (4.8 in)
1911
36.8 mm (1.4 in)
1912
32.3 mm (1.3 in)
1913
37.6 mm (1.5 in)
1914
48.5 mm (1.9 in)
1915
54.1 mm (2.1 in)
1916
30.7 mm (1.2 in)
1917
39.1 mm (1.5 in)
1918
61.0 mm (2.4 in)
1919
44.5 mm (1.8 in)
1920
43.2 mm (1.7 in)
1921
101.6 mm (4.0 in)
1922
67.3 mm (2.6 in)
1923
76.2 mm (3.0 in)
1924
18.0 mm (0.7 in)
1925
76.2 mm (3.0 in)
1926
50.8 mm (2.0 in)
1927
61.0 mm (2.4 in)
1928
72.4 mm (2.9 in)
1929
39.9 mm (1.6 in)
1960
20.3 mm (0.8 in)
1961
82.6 mm (3.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Watford, 1883 to 1961. The record is 172.7 mm (6.8 in) in 1921, marked on the chart; the median year is 68.1 mm (2.7 in).
Wettest five days (Rx5day) at Watford by year
Year
Wettest five days (Rx5day)
1883
78.1 mm (3.1 in)
1884
50.3 mm (2.0 in)
1885
143.5 mm (5.6 in)
1886
64.8 mm (2.6 in)
1887
41.2 mm (1.6 in)
1888
50.3 mm (2.0 in)
1889
127.0 mm (5.0 in)
1890
57.2 mm (2.3 in)
1891
66.1 mm (2.6 in)
1892
130.3 mm (5.1 in)
1893
66.3 mm (2.6 in)
1894
99.8 mm (3.9 in)
1895
56.1 mm (2.2 in)
1896
64.7 mm (2.5 in)
1897
68.1 mm (2.7 in)
1898
69.9 mm (2.8 in)
1899
71.9 mm (2.8 in)
1900
45.7 mm (1.8 in)
1901
58.4 mm (2.3 in)
1902
56.4 mm (2.2 in)
1903
92.9 mm (3.7 in)
1904
139.7 mm (5.5 in)
1905
64.0 mm (2.5 in)
1906
71.1 mm (2.8 in)
1907
41.6 mm (1.6 in)
1908
101.6 mm (4.0 in)
1909
50.3 mm (2.0 in)
1910
127.0 mm (5.0 in)
1911
64.3 mm (2.5 in)
1912
56.4 mm (2.2 in)
1913
83.1 mm (3.3 in)
1914
66.3 mm (2.6 in)
1915
75.7 mm (3.0 in)
1916
61.5 mm (2.4 in)
1917
64.0 mm (2.5 in)
1918
75.0 mm (3.0 in)
1919
90.2 mm (3.6 in)
1920
77.2 mm (3.0 in)
1921
172.7 mm (6.8 in)
1922
128.3 mm (5.1 in)
1923
81.3 mm (3.2 in)
1924
27.9 mm (1.1 in)
1925
88.9 mm (3.5 in)
1926
66.0 mm (2.6 in)
1927
88.9 mm (3.5 in)
1928
83.6 mm (3.3 in)
1929
55.9 mm (2.2 in)
1960
25.4 mm (1.0 in)
1961
116.4 mm (4.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Watford, 1883 to 1961. The record is 34 days in 1894, marked on the chart; the median year is 17 days.
Longest dry spell (CDD) at Watford by year
Year
Longest dry spell (CDD)
1883
11 days
1884
20 days
1885
28 days
1886
17 days
1887
23 days
1888
17 days
1889
26 days
1890
25 days
1891
25 days
1892
12 days
1893
26 days
1894
34 days
1895
14 days
1896
10 days
1897
19 days
1898
21 days
1899
20 days
1900
15 days
1901
21 days
1902
12 days
1903
14 days
1904
15 days
1905
15 days
1906
22 days
1907
15 days
1908
27 days
1909
13 days
1910
14 days
1911
11 days
1912
19 days
1913
19 days
1914
15 days
1915
14 days
1916
24 days
1917
19 days
1918
16 days
1919
15 days
1920
19 days
1921
14 days
1922
26 days
1923
26 days
1924
12 days
1925
24 days
1926
22 days
1927
27 days
1928
17 days
1929
10 days
1960
8 days
1961
12 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.
Download the Data
Data for Watford standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Watford 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.