Dover Weather Records (USC00282340)
Record envelope, standing records and threshold days for Dover (USC00282340), New Jersey, United States, with 51 years of record.
Key Facts for Dover
- Dover (USC00282340) is a weather station in New Jersey, United States at 40.88 latitude and -74.57 longitude, 175 m (575 ft) above sea level.
- The station reports from 1893 to 1943, 51 years of record.
- 1,464 records set at Dover still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Dover tied a daily record low minimum temperature of -15.6 C (3.9 F) on 24 December 1943.
About the Station
- Location: New Jersey, United States, 40.88 latitude, -74.57 longitude.
- Elevation: 175 m (575 ft).
- Period of record: 1893 to 1943, 51 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 20.6 C (69.1 F) | -29.4 C (-20.9 F) | n/a | n/a |
| Feb | 22.8 C (73.0 F) | -28.3 C (-18.9 F) | n/a | n/a |
| Mar | 28.3 C (82.9 F) | -20.6 C (-5.1 F) | n/a | n/a |
| Apr | 33.9 C (93.0 F) | -13.3 C (8.1 F) | n/a | n/a |
| May | 37.2 C (99.0 F) | -2.8 C (27.0 F) | n/a | n/a |
| Jun | 37.8 C (100.0 F) | 2.2 C (36.0 F) | n/a | n/a |
| Jul | 39.4 C (102.9 F) | 1.7 C (35.1 F) | n/a | n/a |
| Aug | 38.3 C (100.9 F) | 3.9 C (39.0 F) | n/a | n/a |
| Sep | 37.2 C (99.0 F) | -2.2 C (28.0 F) | n/a | n/a |
| Oct | 31.7 C (89.1 F) | -9.4 C (15.1 F) | n/a | n/a |
| Nov | 26.1 C (79.0 F) | -15.0 C (5.0 F) | n/a | n/a |
| Dec | 17.8 C (64.0 F) | -25.6 C (-14.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1893 | 28 |
| 1894 | 29 |
| 1895 | 53 |
| 1896 | 67 |
| 1897 | 26 |
| 1898 | 36 |
| 1899 | 37 |
| 1900 | 37 |
| 1901 | 27 |
| 1902 | 26 |
| 1903 | 56 |
| 1904 | 37 |
| 1905 | 31 |
| 1906 | 33 |
| 1907 | 30 |
| 1908 | 25 |
| 1909 | 37 |
| 1910 | 23 |
| 1911 | 25 |
| 1912 | 25 |
| 1913 | 31 |
| 1914 | 33 |
| 1915 | 28 |
| 1916 | 33 |
| 1917 | 34 |
| 1918 | 31 |
| 1919 | 20 |
| 1920 | 16 |
| 1921 | 22 |
| 1922 | 13 |
| 1923 | 27 |
| 1924 | 14 |
| 1925 | 30 |
| 1926 | 31 |
| 1927 | 27 |
| 1928 | 27 |
| 1929 | 39 |
| 1930 | 31 |
| 1931 | 20 |
| 1932 | 26 |
| 1933 | 28 |
| 1934 | 26 |
| 1935 | 19 |
| 1936 | 32 |
| 1937 | 17 |
| 1938 | 24 |
| 1939 | 16 |
| 1940 | 24 |
| 1941 | 15 |
| 1942 | 21 |
| 1943 | 21 |
All-Time Record Progression
1 new records| Date | Kind | Detail |
|---|---|---|
| 1933-12-29 | Record low maximum temperature | Record low maximum temperature -18.9 C (-2.0 F) |
Wettest Day of Each Month
Jun: 146.1 mm (5.8 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 73.7 mm (2.9 in) | 22 January 1902 |
| Feb | 105.7 mm (4.2 in) | 6 February 1896 |
| Mar | 71.9 mm (2.8 in) | 15 March 1940 |
| Apr | 85.1 mm (3.4 in) | 7 April 1924 |
| May | 82.6 mm (3.3 in) | 2 May 1897 |
| Jun | 146.1 mm (5.8 in) | 12 June 1903 |
| Jul | 132.1 mm (5.2 in) | 6 July 1901 |
| Aug | 101.6 mm (4.0 in) | 17 August 1909 |
| Sep | 142.2 mm (5.6 in) | 15 September 1904 |
| Oct | 139.7 mm (5.5 in) | 9 October 1903 |
| Nov | 98.8 mm (3.9 in) | 13 November 1937 |
| Dec | 83.8 mm (3.3 in) | 13 December 1909 |
Period of Record Coverage
1893 to 1943| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1893 | 353 | 97% | Yes |
| 1894 | 353 | 97% | Yes |
| 1895 | 352 | 96% | Yes |
| 1896 | 355 | 97% | Yes |
| 1897 | 348 | 95% | Yes |
| 1898 | 354 | 97% | Yes |
| 1899 | 360 | 99% | Yes |
| 1900 | 357 | 98% | Yes |
| 1901 | 353 | 97% | Yes |
| 1902 | 358 | 98% | Yes |
| 1903 | 352 | 96% | Yes |
| 1904 | 356 | 97% | Yes |
| 1905 | 361 | 99% | Yes |
| 1906 | 360 | 99% | Yes |
| 1907 | 364 | 100% | Yes |
| 1908 | 359 | 98% | Yes |
| 1909 | 355 | 97% | Yes |
| 1910 | 360 | 99% | Yes |
| 1911 | 364 | 100% | Yes |
| 1912 | 361 | 99% | Yes |
| 1913 | 360 | 99% | Yes |
| 1914 | 358 | 98% | Yes |
| 1915 | 360 | 99% | Yes |
| 1916 | 357 | 98% | Yes |
| 1917 | 355 | 97% | Yes |
| 1918 | 353 | 97% | Yes |
| 1919 | 355 | 97% | Yes |
| 1920 | 360 | 98% | Yes |
| 1921 | 355 | 97% | Yes |
| 1922 | 362 | 99% | Yes |
| 1923 | 362 | 99% | Yes |
| 1924 | 359 | 98% | Yes |
| 1925 | 254 | 70% | No |
| 1926 | 347 | 95% | Yes |
| 1927 | 353 | 97% | Yes |
| 1928 | 356 | 97% | Yes |
| 1929 | 357 | 98% | Yes |
| 1930 | 347 | 95% | Yes |
| 1931 | 355 | 97% | Yes |
| 1932 | 358 | 98% | Yes |
| 1933 | 360 | 99% | Yes |
| 1934 | 354 | 97% | Yes |
| 1935 | 355 | 97% | Yes |
| 1936 | 361 | 99% | Yes |
| 1937 | 351 | 96% | Yes |
| 1938 | 357 | 98% | Yes |
| 1939 | 360 | 99% | Yes |
| 1940 | 354 | 97% | Yes |
| 1941 | 345 | 95% | Yes |
| 1942 | 318 | 87% | No |
| 1943 | 351 | 96% | Yes |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 24 December 1943 | Dover, US | daily low min (Tie) | -15.6 C (3.9 F) | tie | 36 years | 4 of 100 (Routine) |
| 25 November 1943 | Dover, US | daily high max (Tie) | 14.4 C (57.9 F) | tie | 12 years | 2 of 100 (Routine) |
| 9 November 1943 | Dover, US | daily rain | 50.8 mm (2.0 in) | 5.6 mm (0.22 in) | 29 years | 16 of 100 (Routine) |
| 26 October 1943 | Dover, US | daily low max (Tie) | 7.2 C (45.0 F) | tie | 37 years | 4 of 100 (Routine) |
| 25 October 1943 | Dover, US | daily low max | 7.8 C (46.0 F) | 0.5 C (0.9 F) | 46 years | 20 of 100 (Routine) |
| 16 October 1943 | Dover, US | daily rain | 28.2 mm (1.1 in) | 7.1 mm (0.28 in) | 24 years | 15 of 100 (Routine) |
| 15 October 1943 | Dover, US | daily rain | 30.5 mm (1.2 in) | 10.2 mm (0.4 in) | 17 years | 15 of 100 (Routine) |
| 6 October 1943 | Dover, US | daily low min (Tie) | -0.6 C (30.9 F) | tie | 20 years | 2 of 100 (Routine) |
| 4 October 1943 | Dover, US | daily low max (Tie) | 13.9 C (57.0 F) | tie | 46 years | 4 of 100 (Routine) |
| 1 October 1943 | Dover, US | daily rain | 45.0 mm (1.8 in) | 9.2 mm (0.36 in) | 22 years | 15 of 100 (Routine) |
| 19 September 1943 | Dover, US | daily low min | 1.7 C (35.1 F) | 0.5 C (0.9 F) | 13 years | 10 of 100 (Routine) |
| 6 September 1943 | Dover, US | daily high min (Tie) | 20.0 C (68.0 F) | tie | 32 years | 3 of 100 (Routine) |
| 27 August 1943 | Dover, US | daily rain | 44.5 mm (1.8 in) | 6.4 mm (0.25 in) | 16 years | 12 of 100 (Routine) |
| 13 July 1943 | Dover, US | daily high min (Tie) | 20.6 C (69.1 F) | tie | 48 years | 4 of 100 (Routine) |
| 30 June 1943 | Dover, US | daily low max | 19.4 C (66.9 F) | 0.6 C (1.1 F) | 36 years | 16 of 100 (Routine) |
| 28 June 1943 | Dover, US | daily high min | 22.2 C (72.0 F) | 1.6 C (2.9 F) | 41 years | 21 of 100 (Routine) |
| 27 June 1943 | Dover, US | daily high min (Tie) | 21.7 C (71.1 F) | tie | 48 years | 4 of 100 (Routine) |
| 25 June 1943 | Dover, US | daily high min (Tie) | 21.7 C (71.1 F) | tie | 20 years | 2 of 100 (Routine) |
| 16 June 1943 | Dover, US | daily high min | 20.0 C (68.0 F) | 0.6 C (1.1 F) | 22 years | 12 of 100 (Routine) |
| 3 June 1943 | Dover, US | daily high min | 20.6 C (69.1 F) | 1.7 C (3.1 F) | 47 years | 23 of 100 (Routine) |
Climate Trend
45 complete years, 1893 to 1943| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1893 | 8.7 C | -0.82 C |
| 1894 | 10.2 C | +0.65 C |
| 1895 | 9.6 C | +0.10 C |
| 1896 | 9.8 C | +0.23 C |
| 1897 | 10.1 C | +0.57 C |
| 1898 | 10.6 C | +1.06 C |
| 1900 | 10.9 C | +1.34 C |
| 1902 | 9.3 C | -0.27 C |
| 1903 | 8.9 C | -0.59 C |
| 1904 | 7.2 C | -2.30 C |
| 1905 | 8.6 C | -0.89 C |
| 1906 | 9.5 C | -0.08 C |
| 1907 | 8.2 C | -1.32 C |
| 1908 | 9.3 C | -0.19 C |
| 1909 | 9.1 C | -0.41 C |
| 1910 | 9.0 C | -0.50 C |
| 1911 | 9.3 C | -0.20 C |
| 1912 | 8.8 C | -0.70 C |
| 1913 | 10.3 C | +0.74 C |
| 1914 | 8.6 C | -0.91 C |
| 1915 | 9.6 C | +0.10 C |
| 1916 | 9.0 C | -0.55 C |
| 1917 | 8.1 C | -1.39 C |
| 1918 | 9.5 C | -0.07 C |
| 1919 | 9.8 C | +0.23 C |
| 1920 | 9.3 C | -0.28 C |
| 1921 | 10.8 C | +1.26 C |
| 1922 | 10.2 C | +0.66 C |
| 1923 | 9.7 C | +0.18 C |
| 1924 | 9.0 C | -0.56 C |
| 1926 | 8.6 C | -0.91 C |
| 1927 | 9.9 C | +0.33 C |
| 1928 | 10.0 C | +0.44 C |
| 1929 | 10.2 C | +0.69 C |
| 1930 | 10.2 C | +0.66 C |
| 1932 | 10.7 C | +1.13 C |
| 1933 | 10.2 C | +0.70 C |
| 1934 | 9.6 C | +0.05 C |
| 1935 | 9.7 C | +0.16 C |
| 1936 | 9.8 C | +0.23 C |
| 1937 | 10.2 C | +0.66 C |
| 1938 | 10.4 C | +0.88 C |
| 1939 | 10.2 C | +0.64 C |
| 1940 | 8.6 C | -0.92 C |
| 1943 | 9.5 C | -0.03 C |
The fitted trend in annual mean temperature here over 1893 to 1943 is 0.12 C (-0.04 to 0.28) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.2 F (-0.1 to 0.5) per decade. The slope is a straight line fitted to 45 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.12 C (-0.04 to 0.28) per decade | 0.2 F (-0.1 to 0.5) per decade | 1893 to 1943 | 45 | Not clearly different from zero |
| Mean daily maximum | 0.1 C (-0.1 to 0.3) per decade | 0.1 F (-0.2 to 0.5) per decade | 1893 to 1943 | 45 | Not clearly different from zero |
| Mean daily minimum | 0.17 C (0.02 to 0.32) per decade | 0.31 F (0.04 to 0.58) per decade | 1893 to 1943 | 45 | 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
1893 to 1943| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 39.4 C (102.9 F) | 1901 | 35.0 C (95.0 F) | 51 |
| Coldest night (TNn) | -29.4 C (-20.9 F) | 1912 | -20.6 C (-5.1 F) | 51 |
| Wettest day (Rx1day) | 146.1 mm (5.8 in) | 1903 | 79.2 mm (3.1 in) | 51 |
| Wettest five days (Rx5day) | 257.3 mm (10.1 in) | 1903 | 114.1 mm (4.5 in) | 51 |
| Longest dry spell (CDD) | 34 days | 1924 | 16 days | 51 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1893 | 36.7 C (98.1 F) |
| 1894 | 36.1 C (97.0 F) |
| 1895 | 37.2 C (99.0 F) |
| 1896 | 38.3 C (100.9 F) |
| 1897 | 37.8 C (100.0 F) |
| 1898 | 38.9 C (102.0 F) |
| 1899 | 37.8 C (100.0 F) |
| 1900 | 36.7 C (98.1 F) |
| 1901 | 39.4 C (102.9 F) |
| 1902 | 34.4 C (93.9 F) |
| 1903 | 36.1 C (97.0 F) |
| 1904 | 33.3 C (91.9 F) |
| 1905 | 35.0 C (95.0 F) |
| 1906 | 33.9 C (93.0 F) |
| 1907 | 34.4 C (93.9 F) |
| 1908 | 36.7 C (98.1 F) |
| 1909 | 34.4 C (93.9 F) |
| 1910 | 35.0 C (95.0 F) |
| 1911 | 38.9 C (102.0 F) |
| 1912 | 36.1 C (97.0 F) |
| 1913 | 35.0 C (95.0 F) |
| 1914 | 34.4 C (93.9 F) |
| 1915 | 33.9 C (93.0 F) |
| 1916 | 35.6 C (96.1 F) |
| 1917 | 35.6 C (96.1 F) |
| 1918 | 37.8 C (100.0 F) |
| 1919 | 35.6 C (96.1 F) |
| 1920 | 33.9 C (93.0 F) |
| 1921 | 33.3 C (91.9 F) |
| 1922 | 33.9 C (93.0 F) |
| 1923 | 36.7 C (98.1 F) |
| 1924 | 35.0 C (95.0 F) |
| 1925 | 37.2 C (99.0 F) |
| 1926 | 36.7 C (98.1 F) |
| 1927 | 35.0 C (95.0 F) |
| 1928 | 35.0 C (95.0 F) |
| 1929 | 37.2 C (99.0 F) |
| 1930 | 37.8 C (100.0 F) |
| 1931 | 35.0 C (95.0 F) |
| 1932 | 34.4 C (93.9 F) |
| 1933 | 37.8 C (100.0 F) |
| 1934 | 36.7 C (98.1 F) |
| 1935 | 33.9 C (93.0 F) |
| 1936 | 38.9 C (102.0 F) |
| 1937 | 34.4 C (93.9 F) |
| 1938 | 31.7 C (89.1 F) |
| 1939 | 33.3 C (91.9 F) |
| 1940 | 34.4 C (93.9 F) |
| 1941 | 35.0 C (95.0 F) |
| 1942 | 33.3 C (91.9 F) |
| 1943 | 34.4 C (93.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1893 | -25.0 C (-13.0 F) |
| 1894 | -20.6 C (-5.1 F) |
| 1895 | -21.1 C (-6.0 F) |
| 1896 | -22.2 C (-8.0 F) |
| 1897 | -18.3 C (-0.9 F) |
| 1898 | -20.0 C (-4.0 F) |
| 1899 | -23.3 C (-9.9 F) |
| 1900 | -21.1 C (-6.0 F) |
| 1901 | -18.3 C (-0.9 F) |
| 1902 | -17.8 C (0.0 F) |
| 1903 | -19.4 C (-2.9 F) |
| 1904 | -24.4 C (-11.9 F) |
| 1905 | -21.1 C (-6.0 F) |
| 1906 | -18.3 C (-0.9 F) |
| 1907 | -21.1 C (-6.0 F) |
| 1908 | -20.0 C (-4.0 F) |
| 1909 | -19.4 C (-2.9 F) |
| 1910 | -18.9 C (-2.0 F) |
| 1911 | -15.0 C (5.0 F) |
| 1912 | -29.4 C (-20.9 F) |
| 1913 | -15.0 C (5.0 F) |
| 1914 | -22.2 C (-8.0 F) |
| 1915 | -14.4 C (6.1 F) |
| 1916 | -21.7 C (-7.1 F) |
| 1917 | -25.6 C (-14.1 F) |
| 1918 | -24.4 C (-11.9 F) |
| 1919 | -22.2 C (-8.0 F) |
| 1920 | -21.7 C (-7.1 F) |
| 1921 | -20.6 C (-5.1 F) |
| 1922 | -20.6 C (-5.1 F) |
| 1923 | -18.3 C (-0.9 F) |
| 1924 | -17.2 C (1.0 F) |
| 1925 | -22.2 C (-8.0 F) |
| 1926 | -18.3 C (-0.9 F) |
| 1927 | -20.0 C (-4.0 F) |
| 1928 | -17.2 C (1.0 F) |
| 1929 | -17.8 C (0.0 F) |
| 1930 | -18.3 C (-0.9 F) |
| 1931 | -16.1 C (3.0 F) |
| 1932 | -17.8 C (0.0 F) |
| 1933 | -22.2 C (-8.0 F) |
| 1934 | -28.3 C (-18.9 F) |
| 1935 | -21.7 C (-7.1 F) |
| 1936 | -21.7 C (-7.1 F) |
| 1937 | -12.8 C (9.0 F) |
| 1938 | -21.7 C (-7.1 F) |
| 1939 | -16.7 C (1.9 F) |
| 1940 | -16.1 C (3.0 F) |
| 1941 | -15.0 C (5.0 F) |
| 1942 | -23.9 C (-11.0 F) |
| 1943 | -26.1 C (-15.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1893 | 90.2 mm (3.6 in) |
| 1894 | 96.5 mm (3.8 in) |
| 1895 | 105.7 mm (4.2 in) |
| 1896 | 105.7 mm (4.2 in) |
| 1897 | 104.4 mm (4.1 in) |
| 1898 | 43.7 mm (1.7 in) |
| 1899 | 41.9 mm (1.6 in) |
| 1900 | 59.9 mm (2.4 in) |
| 1901 | 132.1 mm (5.2 in) |
| 1902 | 76.2 mm (3.0 in) |
| 1903 | 146.1 mm (5.8 in) |
| 1904 | 142.2 mm (5.6 in) |
| 1905 | 101.6 mm (4.0 in) |
| 1906 | 68.6 mm (2.7 in) |
| 1907 | 108.0 mm (4.3 in) |
| 1908 | 94.0 mm (3.7 in) |
| 1909 | 101.6 mm (4.0 in) |
| 1910 | 92.7 mm (3.6 in) |
| 1911 | 68.6 mm (2.7 in) |
| 1912 | 107.2 mm (4.2 in) |
| 1913 | 77.7 mm (3.1 in) |
| 1914 | 71.1 mm (2.8 in) |
| 1915 | 79.2 mm (3.1 in) |
| 1916 | 64.0 mm (2.5 in) |
| 1917 | 43.2 mm (1.7 in) |
| 1918 | 50.8 mm (2.0 in) |
| 1919 | 80.0 mm (3.1 in) |
| 1920 | 70.6 mm (2.8 in) |
| 1921 | 53.6 mm (2.1 in) |
| 1922 | 91.7 mm (3.6 in) |
| 1923 | 70.4 mm (2.8 in) |
| 1924 | 85.1 mm (3.4 in) |
| 1925 | 64.8 mm (2.6 in) |
| 1926 | 75.4 mm (3.0 in) |
| 1927 | 82.6 mm (3.3 in) |
| 1928 | 56.9 mm (2.2 in) |
| 1929 | 68.3 mm (2.7 in) |
| 1930 | 89.2 mm (3.5 in) |
| 1931 | 110.5 mm (4.4 in) |
| 1932 | 71.1 mm (2.8 in) |
| 1933 | 81.3 mm (3.2 in) |
| 1934 | 76.2 mm (3.0 in) |
| 1935 | 101.1 mm (4.0 in) |
| 1936 | 69.9 mm (2.8 in) |
| 1937 | 98.8 mm (3.9 in) |
| 1938 | 114.3 mm (4.5 in) |
| 1939 | 49.5 mm (1.9 in) |
| 1940 | 77.0 mm (3.0 in) |
| 1941 | 50.5 mm (2.0 in) |
| 1942 | 96.0 mm (3.8 in) |
| 1943 | 50.8 mm (2.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1893 | 127.8 mm (5.0 in) |
| 1894 | 135.6 mm (5.3 in) |
| 1895 | 142.5 mm (5.6 in) |
| 1896 | 134.2 mm (5.3 in) |
| 1897 | 114.1 mm (4.5 in) |
| 1898 | 67.6 mm (2.7 in) |
| 1899 | 75.9 mm (3.0 in) |
| 1900 | 97.6 mm (3.8 in) |
| 1901 | 184.1 mm (7.2 in) |
| 1902 | 156.3 mm (6.2 in) |
| 1903 | 257.3 mm (10.1 in) |
| 1904 | 142.7 mm (5.6 in) |
| 1905 | 123.2 mm (4.9 in) |
| 1906 | 82.6 mm (3.3 in) |
| 1907 | 123.2 mm (4.9 in) |
| 1908 | 117.1 mm (4.6 in) |
| 1909 | 106.9 mm (4.2 in) |
| 1910 | 94.0 mm (3.7 in) |
| 1911 | 114.1 mm (4.5 in) |
| 1912 | 107.2 mm (4.2 in) |
| 1913 | 91.6 mm (3.6 in) |
| 1914 | 100.3 mm (3.9 in) |
| 1915 | 127.7 mm (5.0 in) |
| 1916 | 77.5 mm (3.1 in) |
| 1917 | 56.5 mm (2.2 in) |
| 1918 | 65.7 mm (2.6 in) |
| 1919 | 190.2 mm (7.5 in) |
| 1920 | 97.3 mm (3.8 in) |
| 1921 | 94.0 mm (3.7 in) |
| 1922 | 115.9 mm (4.6 in) |
| 1923 | 107.9 mm (4.2 in) |
| 1924 | 118.9 mm (4.7 in) |
| 1925 | 81.3 mm (3.2 in) |
| 1926 | 116.0 mm (4.6 in) |
| 1927 | 96.3 mm (3.8 in) |
| 1928 | 80.8 mm (3.2 in) |
| 1929 | 66.5 mm (2.6 in) |
| 1930 | 101.4 mm (4.0 in) |
| 1931 | 136.1 mm (5.4 in) |
| 1932 | 96.3 mm (3.8 in) |
| 1933 | 137.2 mm (5.4 in) |
| 1934 | 121.0 mm (4.8 in) |
| 1935 | 183.2 mm (7.2 in) |
| 1936 | 86.8 mm (3.4 in) |
| 1937 | 102.4 mm (4.0 in) |
| 1938 | 196.1 mm (7.7 in) |
| 1939 | 78.8 mm (3.1 in) |
| 1940 | 128.1 mm (5.0 in) |
| 1941 | 79.8 mm (3.1 in) |
| 1942 | 159.5 mm (6.3 in) |
| 1943 | 118.0 mm (4.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1893 | 14 days |
| 1894 | 18 days |
| 1895 | 21 days |
| 1896 | 12 days |
| 1897 | 11 days |
| 1898 | 12 days |
| 1899 | 21 days |
| 1900 | 17 days |
| 1901 | 27 days |
| 1902 | 14 days |
| 1903 | 18 days |
| 1904 | 19 days |
| 1905 | 12 days |
| 1906 | 16 days |
| 1907 | 10 days |
| 1908 | 21 days |
| 1909 | 17 days |
| 1910 | 17 days |
| 1911 | 17 days |
| 1912 | 17 days |
| 1913 | 14 days |
| 1914 | 21 days |
| 1915 | 13 days |
| 1916 | 13 days |
| 1917 | 21 days |
| 1918 | 16 days |
| 1919 | 12 days |
| 1920 | 11 days |
| 1921 | 15 days |
| 1922 | 25 days |
| 1923 | 16 days |
| 1924 | 34 days |
| 1925 | 16 days |
| 1926 | 15 days |
| 1927 | 17 days |
| 1928 | 12 days |
| 1929 | 17 days |
| 1930 | 21 days |
| 1931 | 13 days |
| 1932 | 14 days |
| 1933 | 12 days |
| 1934 | 14 days |
| 1935 | 14 days |
| 1936 | 12 days |
| 1937 | 15 days |
| 1938 | 13 days |
| 1939 | 26 days |
| 1940 | 16 days |
| 1941 | 22 days |
| 1942 | 24 days |
| 1943 | 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
45 years with a frostAcross 45 years with a frost, the median last spring frost at Dover falls on 29 April and the median first autumn frost on 10 October, which leaves a median of 160 days between them.
Fitted over all years, the growing season changes by +0.2 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1910 to 1943) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 29 April | n/a | 29 April | n/a | +0.2 days per decade |
| First autumn frost | 10 October | n/a | 9 October | n/a | +0.4 days per decade |
| Growing days | 160 days | n/a | 162 days | n/a | +0.2 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
43 years, 1893 to 1943A day with at least 78.3 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 153.0 mm (6.0 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 78.3 mm (3.1 in) | |
| 5 years | 100.7 mm (4.0 in) | |
| 10 years | 114.5 mm (4.5 in) | |
| 25 years | 130.9 mm (5.2 in) | |
| 50 years | 142.3 mm (5.6 in) | Longer than the 43 years of record |
| 100 years | 153.0 mm (6.0 in) | Longer than the 43 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, 43 years of values from 1893 to 1943.
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: 146.1 mm (5.8 in) in 1903; 142.2 mm (5.6 in) in 1904; 132.1 mm (5.2 in) in 1901.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Dover, at 1915. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1915 ran 0.2 C (0.3 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1915 | +0.2 | +0.3 | likely | 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
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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).