Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Port Dover. 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 Port Dover, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
13.9 C (57.0 F)
-32.2 C (-26.0 F)
n/a
n/a
Feb
14.4 C (57.9 F)
-32.2 C (-26.0 F)
n/a
n/a
Mar
22.8 C (73.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Apr
27.8 C (82.0 F)
-14.4 C (6.1 F)
n/a
n/a
May
32.2 C (90.0 F)
-6.7 C (19.9 F)
n/a
n/a
Jun
34.4 C (93.9 F)
-1.7 C (28.9 F)
n/a
n/a
Jul
40.0 C (104.0 F)
3.3 C (37.9 F)
n/a
n/a
Aug
36.1 C (97.0 F)
1.1 C (34.0 F)
n/a
n/a
Sep
33.3 C (91.9 F)
-2.8 C (27.0 F)
n/a
n/a
Oct
29.4 C (84.9 F)
-7.8 C (18.0 F)
n/a
n/a
Nov
24.4 C (75.9 F)
-18.9 C (-2.0 F)
n/a
n/a
Dec
16.7 C (62.1 F)
-29.4 C (-20.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Port Dover still stand. 1900 holds the most, with 38.
Standing records at Port Dover by the year they were set
Year set
Standing records
1875
7
1876
22
1877
5
1878
16
1879
27
1880
16
1881
24
1882
14
1883
16
1884
20
1885
26
1886
14
1887
13
1888
8
1889
13
1890
20
1891
13
1892
9
1893
4
1894
16
1895
30
1896
25
1897
18
1898
33
1899
30
1900
38
1901
8
1902
9
1903
17
1904
27
1905
8
1906
12
1907
12
1908
7
1909
16
1910
15
1911
19
1912
21
1913
10
1914
20
1915
15
1916
18
1917
21
1918
26
1919
18
1920
13
1921
19
1922
10
1923
15
1924
7
1926
4
1928
6
1929
16
1930
12
1931
27
1932
20
1933
23
1934
19
1935
15
1936
26
1937
9
1938
16
1939
6
1940
15
1941
14
1942
16
1943
8
1944
7
1945
16
1946
14
1947
24
1948
11
1950
16
1951
7
1952
10
1953
7
1954
11
1955
8
1956
4
1957
5
1958
3
1959
11
1960
7
1961
9
1962
11
1963
9
1964
13
1965
12
1966
10
1967
8
1968
5
1969
8
1970
3
1971
12
1972
9
1973
8
1974
9
1975
9
1976
12
1977
15
1978
7
1979
11
1980
2
1981
7
1982
15
1983
7
All-Time Record Progression
9 new records
9 all-time records were set at Port Dover between 14 January 1914 and 18 June 1945. Each dot is a new record.
When Port Dover set new all-time records
Date
Kind
Detail
1914-01-14
Record low minimum temperature
Record low minimum temperature -32.2 C (-26.0 F)
1916-07-31
Record high minimum temperature
Record high minimum temperature 25.6 C (78.1 F)
1918-08-13
Record high maximum temperature
Record high maximum temperature 35.0 C (95.0 F)
1922-08-17
Record high minimum temperature
Record high minimum temperature 27.2 C (81.0 F)
1923-03-07
Record daily snowfall
Record daily snowfall 43.2 cm (17.0 in)
1931-07-02
Record high maximum temperature
Record high maximum temperature 36.1 C (97.0 F)
1936-07-09
Record high maximum temperature
Record high maximum temperature 40.0 C (104.0 F)
1937-04-26
Record daily precipitation
Record daily precipitation 88.4 mm (3.5 in)
1945-06-18
Record daily precipitation
Record daily precipitation 99.3 mm (3.9 in)
Wettest Day of Each Month
Jun: 99.3 mm (3.9 in)
The wettest day on record for each calendar month at Port Dover. The most was 99.3 mm (3.9 in) on 18 June 1945.
Record daily precipitation for each month at Port Dover
Month
Record daily precipitation (mm)
Date
Jan
81.3 mm (3.2 in)
21 January 1959
Feb
80.5 mm (3.2 in)
16 February 1954
Mar
58.4 mm (2.3 in)
1 March 1972
Apr
88.4 mm (3.5 in)
26 April 1937
May
55.6 mm (2.2 in)
6 May 1976
Jun
99.3 mm (3.9 in)
18 June 1945
Jul
83.3 mm (3.3 in)
8 July 1917
Aug
66.5 mm (2.6 in)
31 August 1948
Sep
66.8 mm (2.6 in)
13 September 1878
Oct
94.7 mm (3.7 in)
15 October 1954
Nov
86.4 mm (3.4 in)
7 November 1951
Dec
55.9 mm (2.2 in)
12 December 1959
Period of Record Coverage
1875 to 1983
Complete yearUnder 90 percent of days
106 years of record at Port Dover, 1875 to 1983. 6 years have data for under 90 percent of days and are left out of rankings: 1875, 1920, 1926, 1928, 1930, 1931.
Cooler than the station meanWarmer than the station mean
One stripe for each of 97 complete years at Port Dover, 1876 to 1983. Blue stripes are years cooler than the station's own mean of 7.8 C (46.1 F); red stripes are warmer. The coolest year was 1917, at 4.9 C (40.8 F), and the warmest was 1898, at 9.4 C (48.8 F). The strongest colour marks a difference of 2.9 C (5.2 F).
Annual mean temperature at Port Dover as warming stripes, 1876 to 1983
Year
Annual mean temperature
Difference from the station mean
1876
7.4 C
-0.43 C
1877
8.2 C
+0.43 C
1878
8.9 C
+1.04 C
1879
7.3 C
-0.48 C
1880
8.1 C
+0.25 C
1881
8.1 C
+0.30 C
1882
8.0 C
+0.14 C
1883
6.1 C
-1.67 C
1884
7.2 C
-0.66 C
1885
5.9 C
-1.95 C
1886
7.1 C
-0.74 C
1887
7.6 C
-0.21 C
1888
6.6 C
-1.18 C
1889
8.4 C
+0.58 C
1890
8.4 C
+0.60 C
1891
8.3 C
+0.52 C
1892
7.6 C
-0.24 C
1893
7.0 C
-0.78 C
1894
8.9 C
+1.08 C
1895
7.3 C
-0.51 C
1896
8.2 C
+0.34 C
1897
8.3 C
+0.45 C
1898
9.4 C
+1.54 C
1899
8.0 C
+0.22 C
1900
8.8 C
+0.94 C
1901
8.1 C
+0.26 C
1902
7.9 C
+0.05 C
1903
7.9 C
+0.13 C
1904
6.1 C
-1.74 C
1905
6.7 C
-1.15 C
1906
7.8 C
+0.02 C
1907
6.1 C
-1.68 C
1908
7.6 C
-0.22 C
1909
7.3 C
-0.54 C
1910
7.2 C
-0.66 C
1911
8.0 C
+0.15 C
1912
6.3 C
-1.47 C
1913
8.1 C
+0.28 C
1914
7.2 C
-0.59 C
1915
7.5 C
-0.30 C
1916
6.7 C
-1.10 C
1917
4.9 C
-2.90 C
1918
6.4 C
-1.38 C
1919
7.9 C
+0.08 C
1922
8.9 C
+1.12 C
1923
7.8 C
-0.02 C
1924
6.9 C
-0.91 C
1929
9.3 C
+1.48 C
1932
8.6 C
+0.74 C
1933
9.3 C
+1.47 C
1934
8.0 C
+0.19 C
1936
7.5 C
-0.31 C
1937
8.0 C
+0.16 C
1938
8.2 C
+0.43 C
1939
8.2 C
+0.43 C
1940
6.9 C
-0.94 C
1941
8.5 C
+0.64 C
1942
8.0 C
+0.17 C
1943
7.5 C
-0.28 C
1945
7.8 C
-0.04 C
1946
8.8 C
+0.95 C
1947
8.1 C
+0.31 C
1948
8.8 C
+1.00 C
1950
7.5 C
-0.36 C
1951
8.0 C
+0.19 C
1952
8.8 C
+1.02 C
1953
9.1 C
+1.31 C
1954
8.4 C
+0.54 C
1955
8.9 C
+1.05 C
1956
7.8 C
+0.02 C
1957
8.3 C
+0.46 C
1958
7.4 C
-0.40 C
1959
8.3 C
+0.46 C
1960
7.8 C
+0.01 C
1961
8.2 C
+0.35 C
1962
7.7 C
-0.09 C
1963
7.2 C
-0.63 C
1964
8.2 C
+0.34 C
1965
7.6 C
-0.21 C
1966
7.5 C
-0.28 C
1967
7.7 C
-0.15 C
1968
7.9 C
+0.07 C
1969
8.1 C
+0.24 C
1970
8.1 C
+0.30 C
1971
8.2 C
+0.38 C
1972
7.3 C
-0.48 C
1973
8.9 C
+1.11 C
1974
7.9 C
+0.13 C
1975
8.8 C
+0.99 C
1976
7.6 C
-0.24 C
1977
8.0 C
+0.19 C
1978
7.0 C
-0.83 C
1979
7.8 C
-0.05 C
1980
7.7 C
-0.16 C
1981
8.2 C
+0.43 C
1982
7.7 C
-0.08 C
1983
8.5 C
+0.66 C
The annual mean temperature here has risen by 0.05 C (0.00 to 0.10) per decade over 1876 to 1983. In Fahrenheit: 0.09 F (0.01 to 0.18) per decade. The slope is a straight line fitted to 97 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Port Dover
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.05 C (0.00 to 0.10) per decade
0.09 F (0.01 to 0.18) per decade
1876 to 1983
97
Rise
Mean daily maximum
0.07 C (0.01 to 0.12) per decade
0.12 F (0.01 to 0.22) per decade
1876 to 1983
97
Rise
Mean daily minimum
0.04 C (-0.02 to 0.09) per decade
0.07 F (-0.03 to 0.17) per decade
1876 to 1983
97
Not clearly different from zero
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
1874 to 1983
Yearly extremes at Port Dover: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.0 C (104.0 F)
1936
32.2 C (90.0 F)
106
Coldest night (TNn)
-32.2 C (-26.0 F)
1914
-23.3 C (-9.9 F)
106
Wettest day (Rx1day)
99.3 mm (3.9 in)
1945
47.0 mm (1.9 in)
107
Wettest five days (Rx5day)
146.1 mm (5.8 in)
1937
72.4 mm (2.9 in)
107
Longest dry spell (CDD)
37 days
1924
18 days
107
Hottest day (TXx)
The hottest day of the year at Port Dover, 1874 to 1983. The record is 40.0 C (104.0 F) in 1936, marked on the chart; the median year is 32.2 C (90.0 F).
Hottest day (TXx) at Port Dover by year
Year
Hottest day (TXx)
1874
n/a
1875
30.0 C (86.0 F)
1876
33.9 C (93.0 F)
1877
32.8 C (91.0 F)
1878
34.4 C (93.9 F)
1879
32.8 C (91.0 F)
1880
31.7 C (89.1 F)
1881
33.3 C (91.9 F)
1882
32.2 C (90.0 F)
1883
29.4 C (84.9 F)
1884
30.0 C (86.0 F)
1885
31.1 C (88.0 F)
1886
32.8 C (91.0 F)
1887
31.1 C (88.0 F)
1888
31.1 C (88.0 F)
1889
32.2 C (90.0 F)
1890
32.2 C (90.0 F)
1891
31.1 C (88.0 F)
1892
32.2 C (90.0 F)
1893
33.3 C (91.9 F)
1894
31.1 C (88.0 F)
1895
33.3 C (91.9 F)
1896
31.7 C (89.1 F)
1897
33.9 C (93.0 F)
1898
33.3 C (91.9 F)
1899
32.8 C (91.0 F)
1900
33.9 C (93.0 F)
1901
33.9 C (93.0 F)
1902
31.7 C (89.1 F)
1903
31.1 C (88.0 F)
1904
31.7 C (89.1 F)
1905
29.4 C (84.9 F)
1906
32.8 C (91.0 F)
1907
31.1 C (88.0 F)
1908
33.3 C (91.9 F)
1909
29.4 C (84.9 F)
1910
32.2 C (90.0 F)
1911
32.8 C (91.0 F)
1912
33.3 C (91.9 F)
1913
33.3 C (91.9 F)
1914
33.9 C (93.0 F)
1915
31.1 C (88.0 F)
1916
34.4 C (93.9 F)
1917
34.4 C (93.9 F)
1918
35.0 C (95.0 F)
1919
34.4 C (93.9 F)
1920
31.1 C (88.0 F)
1921
32.2 C (90.0 F)
1922
32.8 C (91.0 F)
1923
30.6 C (87.1 F)
1924
30.0 C (86.0 F)
1926
19.4 C (66.9 F)
1928
30.6 C (87.1 F)
1929
32.8 C (91.0 F)
1930
30.6 C (87.1 F)
1931
36.1 C (97.0 F)
1932
31.1 C (88.0 F)
1933
35.0 C (95.0 F)
1934
33.9 C (93.0 F)
1935
32.8 C (91.0 F)
1936
40.0 C (104.0 F)
1937
32.2 C (90.0 F)
1938
32.2 C (90.0 F)
1939
31.1 C (88.0 F)
1940
32.8 C (91.0 F)
1941
34.4 C (93.9 F)
1942
32.8 C (91.0 F)
1943
30.6 C (87.1 F)
1944
32.8 C (91.0 F)
1945
31.1 C (88.0 F)
1946
30.0 C (86.0 F)
1947
33.9 C (93.0 F)
1948
35.0 C (95.0 F)
1950
31.7 C (89.1 F)
1951
31.1 C (88.0 F)
1952
33.3 C (91.9 F)
1953
33.3 C (91.9 F)
1954
32.2 C (90.0 F)
1955
36.1 C (97.0 F)
1956
30.0 C (86.0 F)
1957
30.0 C (86.0 F)
1958
28.9 C (84.0 F)
1959
32.2 C (90.0 F)
1960
31.7 C (89.1 F)
1961
30.0 C (86.0 F)
1962
32.2 C (90.0 F)
1963
31.7 C (89.1 F)
1964
32.2 C (90.0 F)
1965
30.6 C (87.1 F)
1966
32.8 C (91.0 F)
1967
30.0 C (86.0 F)
1968
31.7 C (89.1 F)
1969
31.7 C (89.1 F)
1970
30.6 C (87.1 F)
1971
32.2 C (90.0 F)
1972
32.8 C (91.0 F)
1973
35.0 C (95.0 F)
1974
31.1 C (88.0 F)
1975
31.7 C (89.1 F)
1976
31.1 C (88.0 F)
1977
32.0 C (89.6 F)
1978
33.0 C (91.4 F)
1979
30.0 C (86.0 F)
1980
32.0 C (89.6 F)
1981
32.0 C (89.6 F)
1982
30.5 C (86.9 F)
1983
34.0 C (93.2 F)
Coldest night (TNn)
The coldest night of the year at Port Dover, 1874 to 1983. The record is -32.2 C (-26.0 F) in 1914, marked on the chart; the median year is -23.3 C (-9.9 F).
Coldest night (TNn) at Port Dover by year
Year
Coldest night (TNn)
1874
n/a
1875
-17.8 C (0.0 F)
1876
-20.0 C (-4.0 F)
1877
-22.2 C (-8.0 F)
1878
-19.4 C (-2.9 F)
1879
-21.1 C (-6.0 F)
1880
-22.8 C (-9.0 F)
1881
-27.2 C (-17.0 F)
1882
-24.4 C (-11.9 F)
1883
-22.8 C (-9.0 F)
1884
-29.4 C (-20.9 F)
1885
-26.1 C (-15.0 F)
1886
-26.1 C (-15.0 F)
1887
-21.7 C (-7.1 F)
1888
-28.3 C (-18.9 F)
1889
-24.4 C (-11.9 F)
1890
-20.0 C (-4.0 F)
1891
-22.8 C (-9.0 F)
1892
-29.4 C (-20.9 F)
1893
-23.3 C (-9.9 F)
1894
-21.7 C (-7.1 F)
1895
-28.9 C (-20.0 F)
1896
-27.8 C (-18.0 F)
1897
-23.3 C (-9.9 F)
1898
-22.8 C (-9.0 F)
1899
-27.2 C (-17.0 F)
1900
-23.9 C (-11.0 F)
1901
-23.3 C (-9.9 F)
1902
-20.6 C (-5.1 F)
1903
-22.2 C (-8.0 F)
1904
-29.4 C (-20.9 F)
1905
-25.0 C (-13.0 F)
1906
-22.8 C (-9.0 F)
1907
-25.0 C (-13.0 F)
1908
-27.2 C (-17.0 F)
1909
-25.6 C (-14.1 F)
1910
-25.0 C (-13.0 F)
1911
-19.4 C (-2.9 F)
1912
-29.4 C (-20.9 F)
1913
-20.6 C (-5.1 F)
1914
-32.2 C (-26.0 F)
1915
-23.9 C (-11.0 F)
1916
-26.1 C (-15.0 F)
1917
-26.7 C (-16.1 F)
1918
-30.0 C (-22.0 F)
1919
-20.6 C (-5.1 F)
1920
-17.8 C (0.0 F)
1921
-17.8 C (0.0 F)
1922
-17.8 C (0.0 F)
1923
-20.6 C (-5.1 F)
1924
-22.2 C (-8.0 F)
1926
-20.0 C (-4.0 F)
1928
-9.4 C (15.1 F)
1929
-16.1 C (3.0 F)
1930
-15.6 C (3.9 F)
1931
-11.7 C (10.9 F)
1932
-17.2 C (1.0 F)
1933
-25.0 C (-13.0 F)
1934
-32.2 C (-26.0 F)
1935
-25.0 C (-13.0 F)
1936
-23.9 C (-11.0 F)
1937
-25.0 C (-13.0 F)
1938
-22.2 C (-8.0 F)
1939
-22.8 C (-9.0 F)
1940
-23.9 C (-11.0 F)
1941
-22.2 C (-8.0 F)
1942
-28.9 C (-20.0 F)
1943
-28.9 C (-20.0 F)
1944
-26.7 C (-16.1 F)
1945
-27.8 C (-18.0 F)
1946
-18.3 C (-0.9 F)
1947
-17.2 C (1.0 F)
1948
-23.3 C (-9.9 F)
1950
-21.7 C (-7.1 F)
1951
-20.6 C (-5.1 F)
1952
-17.2 C (1.0 F)
1953
-17.8 C (0.0 F)
1954
-18.9 C (-2.0 F)
1955
-26.7 C (-16.1 F)
1956
-16.7 C (1.9 F)
1957
-23.3 C (-9.9 F)
1958
-23.3 C (-9.9 F)
1959
-21.7 C (-7.1 F)
1960
-20.6 C (-5.1 F)
1961
-23.9 C (-11.0 F)
1962
-23.3 C (-9.9 F)
1963
-23.3 C (-9.9 F)
1964
-20.6 C (-5.1 F)
1965
-23.3 C (-9.9 F)
1966
-22.8 C (-9.0 F)
1967
-22.8 C (-9.0 F)
1968
-20.6 C (-5.1 F)
1969
-18.9 C (-2.0 F)
1970
-25.0 C (-13.0 F)
1971
-21.7 C (-7.1 F)
1972
-21.7 C (-7.1 F)
1973
-24.4 C (-11.9 F)
1974
-21.1 C (-6.0 F)
1975
-20.6 C (-5.1 F)
1976
-27.2 C (-17.0 F)
1977
-25.0 C (-13.0 F)
1978
-24.0 C (-11.2 F)
1979
-24.0 C (-11.2 F)
1980
-24.0 C (-11.2 F)
1981
-25.0 C (-13.0 F)
1982
-25.0 C (-13.0 F)
1983
-18.0 C (-0.4 F)
Wettest day (Rx1day)
The wettest day of the year at Port Dover, 1874 to 1983. The record is 99.3 mm (3.9 in) in 1945, marked on the chart; the median year is 47.0 mm (1.9 in).
Wettest day (Rx1day) at Port Dover by year
Year
Wettest day (Rx1day)
1874
40.1 mm (1.6 in)
1875
33.3 mm (1.3 in)
1876
43.2 mm (1.7 in)
1877
48.8 mm (1.9 in)
1878
66.8 mm (2.6 in)
1879
38.1 mm (1.5 in)
1880
40.1 mm (1.6 in)
1881
34.3 mm (1.4 in)
1882
33.8 mm (1.3 in)
1883
40.6 mm (1.6 in)
1884
39.1 mm (1.5 in)
1885
33.0 mm (1.3 in)
1886
39.9 mm (1.6 in)
1887
38.4 mm (1.5 in)
1888
51.6 mm (2.0 in)
1889
23.4 mm (0.9 in)
1890
84.8 mm (3.3 in)
1891
25.4 mm (1.0 in)
1892
38.9 mm (1.5 in)
1893
57.9 mm (2.3 in)
1894
35.8 mm (1.4 in)
1895
36.3 mm (1.4 in)
1896
71.4 mm (2.8 in)
1897
83.1 mm (3.3 in)
1898
34.8 mm (1.4 in)
1899
26.4 mm (1.0 in)
1900
41.9 mm (1.6 in)
1901
30.0 mm (1.2 in)
1902
58.4 mm (2.3 in)
1903
64.3 mm (2.5 in)
1904
63.5 mm (2.5 in)
1905
34.3 mm (1.4 in)
1906
33.5 mm (1.3 in)
1907
30.7 mm (1.2 in)
1908
52.3 mm (2.1 in)
1909
53.6 mm (2.1 in)
1910
53.3 mm (2.1 in)
1911
38.4 mm (1.5 in)
1912
58.9 mm (2.3 in)
1913
55.9 mm (2.2 in)
1914
30.5 mm (1.2 in)
1915
50.3 mm (2.0 in)
1916
80.3 mm (3.2 in)
1917
83.3 mm (3.3 in)
1918
64.3 mm (2.5 in)
1919
34.0 mm (1.3 in)
1920
75.2 mm (3.0 in)
1921
46.2 mm (1.8 in)
1922
41.9 mm (1.6 in)
1923
67.1 mm (2.6 in)
1924
41.9 mm (1.6 in)
1926
55.9 mm (2.2 in)
1928
50.8 mm (2.0 in)
1929
32.5 mm (1.3 in)
1930
33.0 mm (1.3 in)
1931
46.2 mm (1.8 in)
1932
38.1 mm (1.5 in)
1933
29.5 mm (1.2 in)
1934
41.1 mm (1.6 in)
1935
27.2 mm (1.1 in)
1936
30.7 mm (1.2 in)
1937
88.4 mm (3.5 in)
1938
36.1 mm (1.4 in)
1939
69.1 mm (2.7 in)
1940
51.1 mm (2.0 in)
1941
64.3 mm (2.5 in)
1942
43.2 mm (1.7 in)
1943
46.5 mm (1.8 in)
1944
52.1 mm (2.1 in)
1945
99.3 mm (3.9 in)
1946
33.5 mm (1.3 in)
1947
56.4 mm (2.2 in)
1948
66.5 mm (2.6 in)
1950
50.8 mm (2.0 in)
1951
86.4 mm (3.4 in)
1952
53.3 mm (2.1 in)
1953
53.8 mm (2.1 in)
1954
94.7 mm (3.7 in)
1955
54.4 mm (2.1 in)
1956
72.4 mm (2.9 in)
1957
57.9 mm (2.3 in)
1958
36.8 mm (1.4 in)
1959
81.3 mm (3.2 in)
1960
59.7 mm (2.4 in)
1961
63.0 mm (2.5 in)
1962
30.5 mm (1.2 in)
1963
33.0 mm (1.3 in)
1964
62.2 mm (2.4 in)
1965
47.2 mm (1.9 in)
1966
47.0 mm (1.9 in)
1967
48.3 mm (1.9 in)
1968
97.3 mm (3.8 in)
1969
44.5 mm (1.8 in)
1970
47.0 mm (1.9 in)
1971
40.6 mm (1.6 in)
1972
58.4 mm (2.3 in)
1973
35.3 mm (1.4 in)
1974
37.6 mm (1.5 in)
1975
60.5 mm (2.4 in)
1976
55.6 mm (2.2 in)
1977
67.0 mm (2.6 in)
1978
60.0 mm (2.4 in)
1979
40.8 mm (1.6 in)
1980
63.0 mm (2.5 in)
1981
41.0 mm (1.6 in)
1982
40.0 mm (1.6 in)
1983
45.0 mm (1.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at Port Dover, 1874 to 1983. The record is 146.1 mm (5.8 in) in 1937, marked on the chart; the median year is 72.4 mm (2.9 in).
Wettest five days (Rx5day) at Port Dover by year
Year
Wettest five days (Rx5day)
1874
40.1 mm (1.6 in)
1875
64.8 mm (2.6 in)
1876
75.2 mm (3.0 in)
1877
65.9 mm (2.6 in)
1878
123.7 mm (4.9 in)
1879
74.2 mm (2.9 in)
1880
69.1 mm (2.7 in)
1881
62.2 mm (2.4 in)
1882
59.4 mm (2.3 in)
1883
60.7 mm (2.4 in)
1884
52.6 mm (2.1 in)
1885
47.2 mm (1.9 in)
1886
96.1 mm (3.8 in)
1887
65.2 mm (2.6 in)
1888
54.2 mm (2.1 in)
1889
50.4 mm (2.0 in)
1890
87.3 mm (3.4 in)
1891
63.6 mm (2.5 in)
1892
62.6 mm (2.5 in)
1893
60.7 mm (2.4 in)
1894
93.7 mm (3.7 in)
1895
52.7 mm (2.1 in)
1896
75.5 mm (3.0 in)
1897
104.7 mm (4.1 in)
1898
75.0 mm (3.0 in)
1899
43.0 mm (1.7 in)
1900
103.9 mm (4.1 in)
1901
60.0 mm (2.4 in)
1902
113.2 mm (4.5 in)
1903
73.0 mm (2.9 in)
1904
69.9 mm (2.8 in)
1905
55.2 mm (2.2 in)
1906
43.2 mm (1.7 in)
1907
61.5 mm (2.4 in)
1908
84.1 mm (3.3 in)
1909
88.2 mm (3.5 in)
1910
100.6 mm (4.0 in)
1911
64.1 mm (2.5 in)
1912
70.9 mm (2.8 in)
1913
109.1 mm (4.3 in)
1914
88.7 mm (3.5 in)
1915
100.1 mm (3.9 in)
1916
98.3 mm (3.9 in)
1917
131.1 mm (5.2 in)
1918
78.0 mm (3.1 in)
1919
57.1 mm (2.2 in)
1920
98.3 mm (3.9 in)
1921
68.1 mm (2.7 in)
1922
63.8 mm (2.5 in)
1923
77.0 mm (3.0 in)
1924
62.5 mm (2.5 in)
1926
69.2 mm (2.7 in)
1928
70.3 mm (2.8 in)
1929
69.4 mm (2.7 in)
1930
83.3 mm (3.3 in)
1931
47.3 mm (1.9 in)
1932
89.0 mm (3.5 in)
1933
42.4 mm (1.7 in)
1934
51.8 mm (2.0 in)
1935
44.7 mm (1.8 in)
1936
54.6 mm (2.1 in)
1937
146.1 mm (5.8 in)
1938
94.8 mm (3.7 in)
1939
70.6 mm (2.8 in)
1940
100.4 mm (4.0 in)
1941
80.8 mm (3.2 in)
1942
73.9 mm (2.9 in)
1943
65.8 mm (2.6 in)
1944
71.9 mm (2.8 in)
1945
115.0 mm (4.5 in)
1946
42.7 mm (1.7 in)
1947
72.7 mm (2.9 in)
1948
88.1 mm (3.5 in)
1950
67.9 mm (2.7 in)
1951
102.9 mm (4.1 in)
1952
85.8 mm (3.4 in)
1953
61.4 mm (2.4 in)
1954
106.4 mm (4.2 in)
1955
85.1 mm (3.4 in)
1956
72.4 mm (2.9 in)
1957
95.3 mm (3.8 in)
1958
56.4 mm (2.2 in)
1959
101.6 mm (4.0 in)
1960
59.7 mm (2.4 in)
1961
83.0 mm (3.3 in)
1962
40.2 mm (1.6 in)
1963
45.9 mm (1.8 in)
1964
101.8 mm (4.0 in)
1965
62.5 mm (2.5 in)
1966
89.0 mm (3.5 in)
1967
64.1 mm (2.5 in)
1968
121.2 mm (4.8 in)
1969
71.1 mm (2.8 in)
1970
59.4 mm (2.3 in)
1971
53.9 mm (2.1 in)
1972
61.4 mm (2.4 in)
1973
97.6 mm (3.8 in)
1974
79.5 mm (3.1 in)
1975
73.2 mm (2.9 in)
1976
69.1 mm (2.7 in)
1977
106.6 mm (4.2 in)
1978
79.0 mm (3.1 in)
1979
84.4 mm (3.3 in)
1980
78.6 mm (3.1 in)
1981
91.2 mm (3.6 in)
1982
74.0 mm (2.9 in)
1983
98.0 mm (3.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Port Dover, 1874 to 1983. The record is 37 days in 1924, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Port Dover by year
Year
Longest dry spell (CDD)
1874
17 days
1875
13 days
1876
19 days
1877
28 days
1878
14 days
1879
18 days
1880
22 days
1881
21 days
1882
18 days
1883
15 days
1884
22 days
1885
19 days
1886
17 days
1887
19 days
1888
14 days
1889
19 days
1890
11 days
1891
14 days
1892
12 days
1893
13 days
1894
25 days
1895
15 days
1896
8 days
1897
35 days
1898
15 days
1899
28 days
1900
16 days
1901
17 days
1902
21 days
1903
19 days
1904
28 days
1905
18 days
1906
19 days
1907
10 days
1908
32 days
1909
17 days
1910
25 days
1911
17 days
1912
19 days
1913
17 days
1914
17 days
1915
17 days
1916
35 days
1917
19 days
1918
18 days
1919
18 days
1920
11 days
1921
13 days
1922
21 days
1923
22 days
1924
37 days
1926
12 days
1928
11 days
1929
20 days
1930
12 days
1931
15 days
1932
12 days
1933
29 days
1934
26 days
1935
18 days
1936
14 days
1937
15 days
1938
18 days
1939
19 days
1940
16 days
1941
23 days
1942
14 days
1943
27 days
1944
21 days
1945
22 days
1946
17 days
1947
37 days
1948
22 days
1950
24 days
1951
13 days
1952
33 days
1953
19 days
1954
20 days
1955
23 days
1956
16 days
1957
22 days
1958
32 days
1959
20 days
1960
22 days
1961
22 days
1962
16 days
1963
26 days
1964
11 days
1965
14 days
1966
20 days
1967
15 days
1968
17 days
1969
25 days
1970
17 days
1971
14 days
1972
15 days
1973
14 days
1974
16 days
1975
15 days
1976
25 days
1977
14 days
1978
29 days
1979
23 days
1980
28 days
1981
15 days
1982
14 days
1983
20 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
97 years with a frost
Across 97 years with a frost, the median last spring frost at Port Dover falls on 8 May and the median first autumn frost on 10 October, which leaves a median of 157 days between them.
In 1954 to 1983 the median growing season was 159 days. That is 2 days more than in 1876 to 1905.
Fitted over all years, the growing season changes by -0.5 days per decade at this station.
Frost dates and growing season at Port Dover
Measure
Median, all years
Earliest period (1876 to 1905)
Recent period (1954 to 1983)
Recent against earliest
Fitted trend
Last spring frost
8 May
4 May
8 May
4 days later
+0.2 days per decade
First autumn frost
10 October
11 October
13 October
2 days later
-0.3 days per decade
Growing days
157 days
157 days
159 days
2 days more
-0.5 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
96 years, 1874 to 1983
A day with at least 46.8 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 107.3 mm (4.2 in) of rain is expected about once in 100 years.
Rainfall return levels at Port Dover: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
46.8 mm (1.8 in)
5 years
62.1 mm (2.4 in)
10 years
72.5 mm (2.9 in)
25 years
86.2 mm (3.4 in)
50 years
96.7 mm (3.8 in)
100 years
107.3 mm (4.2 in)
Longer than the 96 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, 96 years of values from 1874 to 1983.
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: 99.3 mm (3.9 in) in 1945; 97.3 mm (3.8 in) in 1968; 94.7 mm (3.7 in) in 1954.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Port Dover standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Port Dover 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.