Delaware Weather Records (USC00332119)
Record envelope, standing records and threshold days for Delaware (USC00332119), Ohio, United States, with 106 years of record.
Key Facts for Delaware
- Delaware (USC00332119) is a weather station in Ohio, United States at 40.32 latitude and -83.07 longitude, 280 m (920 ft) above sea level.
- The station reports from 1896 to 2001, 106 years of record.
- 1,464 records set at Delaware still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Delaware set a daily record snowfall of 17.8 cm (7.0 in) on 31 January 2001.
About the Station
- Location: Ohio, United States, 40.32 latitude, -83.07 longitude.
- Elevation: 280 m (920 ft).
- Period of record: 1896 to 2001, 106 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
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 | 22.8 C (73.0 F) | -33.3 C (-27.9 F) | n/a | n/a |
| Feb | 22.8 C (73.0 F) | -31.7 C (-25.1 F) | n/a | n/a |
| Mar | 29.4 C (84.9 F) | -22.8 C (-9.0 F) | n/a | n/a |
| Apr | 33.3 C (91.9 F) | -11.7 C (10.9 F) | n/a | n/a |
| May | 36.1 C (97.0 F) | -5.0 C (23.0 F) | n/a | n/a |
| Jun | 38.9 C (102.0 F) | 0.6 C (33.1 F) | n/a | n/a |
| Jul | 43.3 C (109.9 F) | 5.0 C (41.0 F) | n/a | n/a |
| Aug | 41.7 C (107.1 F) | 2.2 C (36.0 F) | n/a | n/a |
| Sep | 40.0 C (104.0 F) | -2.8 C (27.0 F) | n/a | n/a |
| Oct | 33.9 C (93.0 F) | -8.9 C (16.0 F) | n/a | n/a |
| Nov | 28.9 C (84.0 F) | -20.0 C (-4.0 F) | n/a | n/a |
| Dec | 23.3 C (73.9 F) | -32.8 C (-27.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1896 | 14 |
| 1897 | 27 |
| 1898 | 45 |
| 1899 | 27 |
| 1900 | 11 |
| 1901 | 12 |
| 1902 | 13 |
| 1903 | 15 |
| 1904 | 21 |
| 1905 | 6 |
| 1906 | 13 |
| 1907 | 23 |
| 1908 | 19 |
| 1909 | 14 |
| 1910 | 17 |
| 1911 | 26 |
| 1912 | 13 |
| 1913 | 20 |
| 1914 | 27 |
| 1915 | 18 |
| 1916 | 18 |
| 1917 | 25 |
| 1918 | 25 |
| 1919 | 20 |
| 1920 | 25 |
| 1921 | 18 |
| 1922 | 16 |
| 1923 | 18 |
| 1924 | 13 |
| 1925 | 27 |
| 1926 | 13 |
| 1927 | 16 |
| 1928 | 22 |
| 1929 | 18 |
| 1930 | 28 |
| 1931 | 15 |
| 1932 | 14 |
| 1933 | 21 |
| 1934 | 28 |
| 1935 | 6 |
| 1936 | 24 |
| 1937 | 14 |
| 1938 | 10 |
| 1939 | 16 |
| 1940 | 15 |
| 1941 | 11 |
| 1942 | 8 |
| 1943 | 8 |
| 1944 | 5 |
| 1945 | 12 |
| 1946 | 6 |
| 1947 | 12 |
| 1948 | 6 |
| 1949 | 7 |
| 1950 | 11 |
| 1951 | 9 |
| 1952 | 6 |
| 1953 | 9 |
| 1954 | 9 |
| 1955 | 10 |
| 1956 | 6 |
| 1957 | 8 |
| 1958 | 6 |
| 1959 | 8 |
| 1960 | 6 |
| 1961 | 6 |
| 1962 | 19 |
| 1963 | 14 |
| 1964 | 14 |
| 1965 | 6 |
| 1966 | 12 |
| 1967 | 14 |
| 1968 | 6 |
| 1969 | 2 |
| 1970 | 8 |
| 1971 | 7 |
| 1972 | 12 |
| 1973 | 4 |
| 1974 | 12 |
| 1975 | 5 |
| 1976 | 18 |
| 1977 | 28 |
| 1978 | 16 |
| 1979 | 15 |
| 1980 | 11 |
| 1981 | 7 |
| 1982 | 17 |
| 1983 | 9 |
| 1984 | 15 |
| 1985 | 13 |
| 1986 | 17 |
| 1987 | 8 |
| 1988 | 15 |
| 1989 | 17 |
| 1990 | 12 |
| 1991 | 20 |
| 1992 | 7 |
| 1993 | 8 |
| 1994 | 13 |
| 1995 | 7 |
| 1996 | 16 |
| 1997 | 6 |
| 1998 | 7 |
| 1999 | 6 |
| 2000 | 6 |
All-Time Record Progression
7 new records| Date | Kind | Detail |
|---|---|---|
| 1934-07-21 | Record high maximum temperature | Record high maximum temperature 43.3 C (109.9 F) |
| 1937-06-21 | Record daily precipitation | Record daily precipitation 124.0 mm (4.9 in) |
| 1983-12-25 | Record low maximum temperature | Record low maximum temperature -22.2 C (-8.0 F) |
| 1985-01-21 | Record low maximum temperature | Record low maximum temperature -23.9 C (-11.0 F) |
| 1989-12-23 | Record low minimum temperature | Record low minimum temperature -32.8 C (-27.0 F) |
| 1994-01-19 | Record low maximum temperature | Record low maximum temperature -24.4 C (-11.9 F) |
| 1994-01-19 | Record low minimum temperature | Record low minimum temperature -33.3 C (-27.9 F) |
Wettest Day of Each Month
Jun: 124.0 mm (4.9 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 65.8 mm (2.6 in) | 22 January 1959 |
| Feb | 54.9 mm (2.2 in) | 24 February 1975 |
| Mar | 71.6 mm (2.8 in) | 10 March 1964 |
| Apr | 69.9 mm (2.8 in) | 8 April 2000 |
| May | 95.0 mm (3.7 in) | 11 May 1905 |
| Jun | 124.0 mm (4.9 in) | 21 June 1937 |
| Jul | 82.6 mm (3.3 in) | 2 July 1999 |
| Aug | 113.5 mm (4.5 in) | 11 August 1905 |
| Sep | 99.1 mm (3.9 in) | 14 September 1979 |
| Oct | 98.3 mm (3.9 in) | 5 October 1910 |
| Nov | 80.5 mm (3.2 in) | 16 November 1955 |
| Dec | 63.5 mm (2.5 in) | 14 December 2000 |
Period of Record Coverage
1896 to 2001| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1896 | 168 | 46% | No |
| 1897 | 331 | 91% | Yes |
| 1898 | 360 | 99% | Yes |
| 1899 | 364 | 100% | Yes |
| 1900 | 365 | 100% | Yes |
| 1901 | 364 | 100% | Yes |
| 1902 | 362 | 99% | Yes |
| 1903 | 365 | 100% | Yes |
| 1904 | 364 | 99% | Yes |
| 1905 | 365 | 100% | Yes |
| 1906 | 365 | 100% | Yes |
| 1907 | 365 | 100% | Yes |
| 1908 | 366 | 100% | Yes |
| 1909 | 365 | 100% | Yes |
| 1910 | 364 | 100% | Yes |
| 1911 | 364 | 100% | Yes |
| 1912 | 365 | 100% | Yes |
| 1913 | 361 | 99% | Yes |
| 1914 | 362 | 99% | Yes |
| 1915 | 364 | 100% | Yes |
| 1916 | 365 | 100% | Yes |
| 1917 | 364 | 100% | Yes |
| 1918 | 363 | 99% | Yes |
| 1919 | 365 | 100% | Yes |
| 1920 | 365 | 100% | Yes |
| 1921 | 365 | 100% | Yes |
| 1922 | 365 | 100% | Yes |
| 1923 | 365 | 100% | Yes |
| 1924 | 363 | 99% | Yes |
| 1925 | 353 | 97% | Yes |
| 1926 | 360 | 99% | Yes |
| 1927 | 362 | 99% | Yes |
| 1928 | 363 | 99% | Yes |
| 1929 | 364 | 100% | Yes |
| 1930 | 362 | 99% | Yes |
| 1931 | 362 | 99% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 363 | 99% | Yes |
| 1934 | 359 | 98% | Yes |
| 1935 | 365 | 100% | Yes |
| 1936 | 366 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 364 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 364 | 100% | Yes |
| 1943 | 362 | 99% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 364 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 364 | 99% | Yes |
| 1949 | 363 | 99% | Yes |
| 1950 | 334 | 92% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 364 | 100% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 361 | 99% | Yes |
| 1957 | 364 | 100% | Yes |
| 1958 | 364 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 364 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 364 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 364 | 100% | Yes |
| 1986 | 364 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 363 | 99% | Yes |
| 1989 | 331 | 91% | Yes |
| 1990 | 294 | 81% | No |
| 1991 | 355 | 97% | Yes |
| 1992 | 364 | 99% | Yes |
| 1993 | 361 | 99% | Yes |
| 1994 | 353 | 97% | Yes |
| 1995 | 355 | 97% | Yes |
| 1996 | 350 | 96% | Yes |
| 1997 | 280 | 77% | No |
| 1998 | 305 | 84% | No |
| 1999 | 281 | 77% | No |
| 2000 | 197 | 54% | No |
| 2001 | 19 | 5% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 31 January 2001 | Delaware, US | daily snowfall | 17.8 cm (7.0 in) | 11.4 cm (4.5 in) | 102 years | 71 of 100 (Major) |
| 27 January 2001 | Delaware, US | daily snowfall | 15.2 cm (6.0 in) | 5.0 cm (2.0 in) | 38 years | 34 of 100 (Routine) |
| 14 December 2000 | Delaware, US | monthly rain | 63.5 mm (2.5 in) | 15.2 mm (0.6 in) | 67 years | 62 of 100 (Major) |
| 8 November 2000 | Delaware, US | monthly high max | 28.9 C (84.0 F) | 2.2 C (4.0 F) | 67 years | 43 of 100 (Notable) |
| 25 September 2000 | Delaware, US | daily rain | 95.3 mm (3.8 in) | 44.8 mm (1.8 in) | 14 years | 54 of 100 (Notable) |
| 7 September 2000 | Delaware, US | daily low min | 2.8 C (37.0 F) | 0.5 C (0.9 F) | 12 years | 13 of 100 (Routine) |
| 21 June 2000 | Delaware, US | daily high min (Tie) | 21.1 C (70.0 F) | tie | 47 years | 6 of 100 (Routine) |
| 17 June 2000 | Delaware, US | daily rain | 38.1 mm (1.5 in) | 5.1 mm (0.20 in) | 46 years | 27 of 100 (Routine) |
| 29 May 2000 | Delaware, US | daily rain | 36.8 mm (1.4 in) | 11.4 mm (0.4 in) | 10 years | 25 of 100 (Routine) |
| 13 May 2000 | Delaware, US | daily high min | 17.8 C (64.0 F) | 0.6 C (1.1 F) | 44 years | 24 of 100 (Routine) |
| 8 May 2000 | Delaware, US | daily high min | 18.9 C (66.0 F) | 2.2 C (4.0 F) | 68 years | 34 of 100 (Routine) |
| 8 April 2000 | Delaware, US | monthly rain | 69.9 mm (2.8 in) | 14.3 mm (0.6 in) | 35 years | 47 of 100 (Notable) |
| 20 March 2000 | Delaware, US | daily rain | 29.2 mm (1.1 in) | 2.8 mm (0.11 in) | 73 years | 34 of 100 (Routine) |
| 13 March 2000 | Delaware, US | daily snowfall (Tie) | 5.1 cm (2.0 in) | tie | 94 years | 9 of 100 (Routine) |
| 9 March 2000 | Delaware, US | daily high max | 26.7 C (80.1 F) | 1.1 C (2.0 F) | 26 years | 18 of 100 (Routine) |
| 8 March 2000 | Delaware, US | daily high max (Tie) | 24.4 C (75.9 F) | tie | 26 years | 4 of 100 (Routine) |
| 1 March 2000 | Delaware, US | daily high min | 11.1 C (52.0 F) | 6.7 C (12.1 F) | 24 years | 28 of 100 (Routine) |
| 24 November 1999 | Delaware, US | daily high max | 21.7 C (71.1 F) | 1.1 C (2.0 F) | 68 years | 31 of 100 (Routine) |
| 16 November 1999 | Delaware, US | daily low min | -16.7 C (1.9 F) | 1.1 C (2.0 F) | 65 years | 31 of 100 (Routine) |
| 11 November 1999 | Delaware, US | daily high max (Tie) | 23.3 C (73.9 F) | tie | 72 years | 7 of 100 (Routine) |
Climate Trend
92 complete years, 1898 to 1993| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1898 | 11.7 C | +1.27 C |
| 1899 | 10.9 C | +0.46 C |
| 1900 | 11.2 C | +0.80 C |
| 1901 | 10.0 C | -0.45 C |
| 1902 | 10.2 C | -0.26 C |
| 1903 | 10.1 C | -0.31 C |
| 1904 | 8.8 C | -1.66 C |
| 1905 | 9.7 C | -0.76 C |
| 1906 | 10.5 C | +0.06 C |
| 1907 | 9.6 C | -0.78 C |
| 1908 | 10.9 C | +0.46 C |
| 1909 | 10.3 C | -0.17 C |
| 1910 | 10.0 C | -0.40 C |
| 1911 | 11.5 C | +1.10 C |
| 1912 | 9.6 C | -0.87 C |
| 1913 | 11.2 C | +0.74 C |
| 1914 | 10.2 C | -0.24 C |
| 1915 | 10.0 C | -0.47 C |
| 1916 | 10.0 C | -0.43 C |
| 1917 | 8.4 C | -2.05 C |
| 1918 | 10.6 C | +0.20 C |
| 1919 | 11.2 C | +0.73 C |
| 1920 | 10.1 C | -0.28 C |
| 1921 | 12.5 C | +2.11 C |
| 1922 | 11.5 C | +1.08 C |
| 1923 | 10.5 C | +0.09 C |
| 1924 | 9.3 C | -1.10 C |
| 1925 | 10.8 C | +0.38 C |
| 1926 | 10.4 C | -0.06 C |
| 1927 | 11.0 C | +0.62 C |
| 1929 | 10.1 C | -0.28 C |
| 1930 | 11.4 C | +1.00 C |
| 1931 | 12.3 C | +1.88 C |
| 1932 | 11.5 C | +1.04 C |
| 1933 | 11.9 C | +1.44 C |
| 1934 | 11.5 C | +1.07 C |
| 1935 | 10.6 C | +0.13 C |
| 1936 | 10.7 C | +0.28 C |
| 1937 | 10.9 C | +0.44 C |
| 1938 | 12.2 C | +1.82 C |
| 1939 | 11.8 C | +1.38 C |
| 1940 | 10.2 C | -0.21 C |
| 1941 | 11.8 C | +1.39 C |
| 1942 | 10.9 C | +0.43 C |
| 1943 | 10.3 C | -0.10 C |
| 1944 | 11.2 C | +0.74 C |
| 1945 | 10.4 C | -0.07 C |
| 1946 | 11.5 C | +1.07 C |
| 1947 | 10.2 C | -0.27 C |
| 1948 | 10.7 C | +0.30 C |
| 1949 | 11.6 C | +1.20 C |
| 1951 | 10.3 C | -0.10 C |
| 1952 | 11.3 C | +0.83 C |
| 1953 | 11.7 C | +1.28 C |
| 1954 | 11.6 C | +1.22 C |
| 1955 | 11.3 C | +0.87 C |
| 1956 | 10.8 C | +0.36 C |
| 1957 | 10.9 C | +0.47 C |
| 1958 | 9.7 C | -0.71 C |
| 1959 | 11.4 C | +1.01 C |
| 1960 | 10.3 C | -0.13 C |
| 1961 | 10.8 C | +0.35 C |
| 1962 | 10.5 C | +0.09 C |
| 1963 | 9.3 C | -1.16 C |
| 1964 | 10.0 C | -0.46 C |
| 1965 | 10.0 C | -0.38 C |
| 1966 | 9.2 C | -1.22 C |
| 1967 | 9.2 C | -1.20 C |
| 1968 | 9.4 C | -1.03 C |
| 1969 | 9.2 C | -1.20 C |
| 1970 | 9.8 C | -0.62 C |
| 1971 | 9.8 C | -0.61 C |
| 1972 | 9.2 C | -1.21 C |
| 1973 | 10.9 C | +0.49 C |
| 1974 | 10.0 C | -0.47 C |
| 1975 | 10.2 C | -0.21 C |
| 1976 | 9.0 C | -1.43 C |
| 1977 | 9.4 C | -1.03 C |
| 1978 | 8.3 C | -2.09 C |
| 1979 | 8.6 C | -1.81 C |
| 1980 | 9.3 C | -1.10 C |
| 1981 | 9.4 C | -1.00 C |
| 1982 | 9.9 C | -0.55 C |
| 1983 | 10.3 C | -0.13 C |
| 1984 | 9.9 C | -0.52 C |
| 1985 | 9.8 C | -0.64 C |
| 1986 | 10.6 C | +0.14 C |
| 1987 | 10.6 C | +0.18 C |
| 1988 | 9.6 C | -0.85 C |
| 1991 | 11.2 C | +0.81 C |
| 1992 | 9.9 C | -0.57 C |
| 1993 | 9.9 C | -0.56 C |
The annual mean temperature here has fallen by 0.09 C (0.03 to 0.16) per decade over 1898 to 1993. In Fahrenheit: 0.16 F (0.05 to 0.28) per decade. The slope is a straight line fitted to 92 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.09 C (-0.16 to -0.02) per decade | -0.16 F (-0.28 to -0.05) per decade | 1898 to 1993 | 92 | Fall |
| Mean daily maximum | -0.12 C (-0.20 to -0.05) per decade | -0.2 F (-0.4 to -0.1) per decade | 1898 to 1993 | 92 | Fall |
| Mean daily minimum | -0.06 C (-0.13 to 0.01) per decade | -0.10 F (-0.23 to 0.02) per decade | 1898 to 1993 | 92 | 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
1896 to 2001| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 43.3 C (109.9 F) | 1934 | 35.6 C (96.1 F) | 106 |
| Coldest night (TNn) | -33.3 C (-27.9 F) | 1994 | -22.5 C (-8.5 F) | 106 |
| Wettest day (Rx1day) | 124.0 mm (4.9 in) | 1937 | 51.2 mm (2.0 in) | 106 |
| Wettest five days (Rx5day) | 199.9 mm (7.9 in) | 1913 | 86.8 mm (3.4 in) | 106 |
| Longest dry spell (CDD) | 48 days | 1963 | 17 days | 106 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1896 | 32.8 C (91.0 F) |
| 1897 | 38.3 C (100.9 F) |
| 1898 | 36.1 C (97.0 F) |
| 1899 | 38.3 C (100.9 F) |
| 1900 | 36.7 C (98.1 F) |
| 1901 | 38.9 C (102.0 F) |
| 1902 | 35.0 C (95.0 F) |
| 1903 | 36.1 C (97.0 F) |
| 1904 | 33.9 C (93.0 F) |
| 1905 | 33.9 C (93.0 F) |
| 1906 | 35.0 C (95.0 F) |
| 1907 | 32.8 C (91.0 F) |
| 1908 | 35.6 C (96.1 F) |
| 1909 | 33.3 C (91.9 F) |
| 1910 | 35.6 C (96.1 F) |
| 1911 | 40.0 C (104.0 F) |
| 1912 | 36.1 C (97.0 F) |
| 1913 | 38.3 C (100.9 F) |
| 1914 | 39.4 C (102.9 F) |
| 1915 | 33.3 C (91.9 F) |
| 1916 | 38.9 C (102.0 F) |
| 1917 | 35.6 C (96.1 F) |
| 1918 | 41.7 C (107.1 F) |
| 1919 | 37.2 C (99.0 F) |
| 1920 | 36.1 C (97.0 F) |
| 1921 | 39.4 C (102.9 F) |
| 1922 | 37.2 C (99.0 F) |
| 1923 | 35.6 C (96.1 F) |
| 1924 | 36.7 C (98.1 F) |
| 1925 | 38.3 C (100.9 F) |
| 1926 | 37.2 C (99.0 F) |
| 1927 | 36.1 C (97.0 F) |
| 1928 | 34.4 C (93.9 F) |
| 1929 | 33.9 C (93.0 F) |
| 1930 | 41.1 C (106.0 F) |
| 1931 | 38.9 C (102.0 F) |
| 1932 | 40.0 C (104.0 F) |
| 1933 | 40.6 C (105.1 F) |
| 1934 | 43.3 C (109.9 F) |
| 1935 | 35.0 C (95.0 F) |
| 1936 | 41.1 C (106.0 F) |
| 1937 | 35.6 C (96.1 F) |
| 1938 | 35.0 C (95.0 F) |
| 1939 | 38.9 C (102.0 F) |
| 1940 | 37.2 C (99.0 F) |
| 1941 | 37.8 C (100.0 F) |
| 1942 | 36.1 C (97.0 F) |
| 1943 | 35.6 C (96.1 F) |
| 1944 | 38.3 C (100.9 F) |
| 1945 | 34.4 C (93.9 F) |
| 1946 | 35.0 C (95.0 F) |
| 1947 | 35.0 C (95.0 F) |
| 1948 | 35.6 C (96.1 F) |
| 1949 | 34.4 C (93.9 F) |
| 1950 | 32.2 C (90.0 F) |
| 1951 | 33.3 C (91.9 F) |
| 1952 | 36.1 C (97.0 F) |
| 1953 | 36.1 C (97.0 F) |
| 1954 | 39.4 C (102.9 F) |
| 1955 | 38.9 C (102.0 F) |
| 1956 | 35.6 C (96.1 F) |
| 1957 | 35.0 C (95.0 F) |
| 1958 | 33.9 C (93.0 F) |
| 1959 | 35.0 C (95.0 F) |
| 1960 | 33.3 C (91.9 F) |
| 1961 | 35.0 C (95.0 F) |
| 1962 | 37.8 C (100.0 F) |
| 1963 | 35.0 C (95.0 F) |
| 1964 | 35.6 C (96.1 F) |
| 1965 | 36.1 C (97.0 F) |
| 1966 | 36.1 C (97.0 F) |
| 1967 | 34.4 C (93.9 F) |
| 1968 | 33.9 C (93.0 F) |
| 1969 | 33.9 C (93.0 F) |
| 1970 | 35.6 C (96.1 F) |
| 1971 | 35.6 C (96.1 F) |
| 1972 | 34.4 C (93.9 F) |
| 1973 | 34.4 C (93.9 F) |
| 1974 | 33.9 C (93.0 F) |
| 1975 | 34.4 C (93.9 F) |
| 1976 | 35.0 C (95.0 F) |
| 1977 | 35.6 C (96.1 F) |
| 1978 | 34.4 C (93.9 F) |
| 1979 | 31.7 C (89.1 F) |
| 1980 | 35.0 C (95.0 F) |
| 1981 | 35.0 C (95.0 F) |
| 1982 | 33.9 C (93.0 F) |
| 1983 | 37.8 C (100.0 F) |
| 1984 | 34.4 C (93.9 F) |
| 1985 | 33.3 C (91.9 F) |
| 1986 | 33.3 C (91.9 F) |
| 1987 | 34.4 C (93.9 F) |
| 1988 | 38.3 C (100.9 F) |
| 1989 | 32.8 C (91.0 F) |
| 1990 | 34.4 C (93.9 F) |
| 1991 | 36.1 C (97.0 F) |
| 1992 | 31.7 C (89.1 F) |
| 1993 | 34.4 C (93.9 F) |
| 1994 | 33.9 C (93.0 F) |
| 1995 | 35.6 C (96.1 F) |
| 1996 | 33.9 C (93.0 F) |
| 1997 | 33.9 C (93.0 F) |
| 1998 | 35.6 C (96.1 F) |
| 1999 | 36.7 C (98.1 F) |
| 2000 | 32.2 C (90.0 F) |
| 2001 | 8.9 C (48.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1896 | -19.4 C (-2.9 F) |
| 1897 | -24.4 C (-11.9 F) |
| 1898 | -20.6 C (-5.1 F) |
| 1899 | -31.7 C (-25.1 F) |
| 1900 | -21.7 C (-7.1 F) |
| 1901 | -25.0 C (-13.0 F) |
| 1902 | -22.8 C (-9.0 F) |
| 1903 | -23.3 C (-9.9 F) |
| 1904 | -29.4 C (-20.9 F) |
| 1905 | -26.1 C (-15.0 F) |
| 1906 | -24.4 C (-11.9 F) |
| 1907 | -23.3 C (-9.9 F) |
| 1908 | -17.2 C (1.0 F) |
| 1909 | -25.0 C (-13.0 F) |
| 1910 | -25.0 C (-13.0 F) |
| 1911 | -18.3 C (-0.9 F) |
| 1912 | -28.9 C (-20.0 F) |
| 1913 | -19.4 C (-2.9 F) |
| 1914 | -25.6 C (-14.1 F) |
| 1915 | -25.6 C (-14.1 F) |
| 1916 | -21.1 C (-6.0 F) |
| 1917 | -26.7 C (-16.1 F) |
| 1918 | -29.4 C (-20.9 F) |
| 1919 | -20.0 C (-4.0 F) |
| 1920 | -18.9 C (-2.0 F) |
| 1921 | -11.1 C (12.0 F) |
| 1922 | -22.2 C (-8.0 F) |
| 1923 | -19.4 C (-2.9 F) |
| 1924 | -25.0 C (-13.0 F) |
| 1925 | -23.9 C (-11.0 F) |
| 1926 | -24.4 C (-11.9 F) |
| 1927 | -18.9 C (-2.0 F) |
| 1928 | -21.1 C (-6.0 F) |
| 1929 | -23.9 C (-11.0 F) |
| 1930 | -23.9 C (-11.0 F) |
| 1931 | -13.9 C (7.0 F) |
| 1932 | -24.4 C (-11.9 F) |
| 1933 | -22.2 C (-8.0 F) |
| 1934 | -23.9 C (-11.0 F) |
| 1935 | -22.2 C (-8.0 F) |
| 1936 | -27.2 C (-17.0 F) |
| 1937 | -17.8 C (0.0 F) |
| 1938 | -16.7 C (1.9 F) |
| 1939 | -20.0 C (-4.0 F) |
| 1940 | -25.6 C (-14.1 F) |
| 1941 | -16.1 C (3.0 F) |
| 1942 | -23.9 C (-11.0 F) |
| 1943 | -20.0 C (-4.0 F) |
| 1944 | -21.1 C (-6.0 F) |
| 1945 | -21.7 C (-7.1 F) |
| 1946 | -18.9 C (-2.0 F) |
| 1947 | -17.8 C (0.0 F) |
| 1948 | -23.9 C (-11.0 F) |
| 1949 | -15.6 C (3.9 F) |
| 1950 | -26.7 C (-16.1 F) |
| 1951 | -25.6 C (-14.1 F) |
| 1952 | -15.0 C (5.0 F) |
| 1953 | -18.3 C (-0.9 F) |
| 1954 | -16.7 C (1.9 F) |
| 1955 | -21.1 C (-6.0 F) |
| 1956 | -17.2 C (1.0 F) |
| 1957 | -22.8 C (-9.0 F) |
| 1958 | -23.3 C (-9.9 F) |
| 1959 | -22.2 C (-8.0 F) |
| 1960 | -22.8 C (-9.0 F) |
| 1961 | -24.4 C (-11.9 F) |
| 1962 | -23.3 C (-9.9 F) |
| 1963 | -28.3 C (-18.9 F) |
| 1964 | -26.7 C (-16.1 F) |
| 1965 | -25.6 C (-14.1 F) |
| 1966 | -24.4 C (-11.9 F) |
| 1967 | -21.1 C (-6.0 F) |
| 1968 | -25.6 C (-14.1 F) |
| 1969 | -18.9 C (-2.0 F) |
| 1970 | -23.3 C (-9.9 F) |
| 1971 | -22.2 C (-8.0 F) |
| 1972 | -25.6 C (-14.1 F) |
| 1973 | -18.9 C (-2.0 F) |
| 1974 | -18.3 C (-0.9 F) |
| 1975 | -22.8 C (-9.0 F) |
| 1976 | -21.7 C (-7.1 F) |
| 1977 | -29.4 C (-20.9 F) |
| 1978 | -23.9 C (-11.0 F) |
| 1979 | -25.0 C (-13.0 F) |
| 1980 | -20.6 C (-5.1 F) |
| 1981 | -23.3 C (-9.9 F) |
| 1982 | -27.2 C (-17.0 F) |
| 1983 | -27.8 C (-18.0 F) |
| 1984 | -30.0 C (-22.0 F) |
| 1985 | -28.9 C (-20.0 F) |
| 1986 | -18.3 C (-0.9 F) |
| 1987 | -17.8 C (0.0 F) |
| 1988 | -22.2 C (-8.0 F) |
| 1989 | -32.8 C (-27.0 F) |
| 1990 | -16.7 C (1.9 F) |
| 1991 | -17.8 C (0.0 F) |
| 1992 | -21.7 C (-7.1 F) |
| 1993 | -21.1 C (-6.0 F) |
| 1994 | -33.3 C (-27.9 F) |
| 1995 | -22.2 C (-8.0 F) |
| 1996 | -22.8 C (-9.0 F) |
| 1997 | -20.6 C (-5.1 F) |
| 1998 | -13.3 C (8.1 F) |
| 1999 | -22.2 C (-8.0 F) |
| 2000 | -6.7 C (19.9 F) |
| 2001 | -17.8 C (0.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1896 | 49.5 mm (1.9 in) |
| 1897 | 47.8 mm (1.9 in) |
| 1898 | 56.1 mm (2.2 in) |
| 1899 | 48.5 mm (1.9 in) |
| 1900 | 32.3 mm (1.3 in) |
| 1901 | 39.6 mm (1.6 in) |
| 1902 | 41.9 mm (1.6 in) |
| 1903 | 73.9 mm (2.9 in) |
| 1904 | 64.5 mm (2.5 in) |
| 1905 | 113.5 mm (4.5 in) |
| 1906 | 71.9 mm (2.8 in) |
| 1907 | 50.0 mm (2.0 in) |
| 1908 | 48.3 mm (1.9 in) |
| 1909 | 39.9 mm (1.6 in) |
| 1910 | 98.3 mm (3.9 in) |
| 1911 | 32.3 mm (1.3 in) |
| 1912 | 104.1 mm (4.1 in) |
| 1913 | 66.5 mm (2.6 in) |
| 1914 | 43.4 mm (1.7 in) |
| 1915 | 68.1 mm (2.7 in) |
| 1916 | 39.9 mm (1.6 in) |
| 1917 | 78.0 mm (3.1 in) |
| 1918 | 45.7 mm (1.8 in) |
| 1919 | 49.0 mm (1.9 in) |
| 1920 | 33.5 mm (1.3 in) |
| 1921 | 36.6 mm (1.4 in) |
| 1922 | 59.9 mm (2.4 in) |
| 1923 | 44.7 mm (1.8 in) |
| 1924 | 51.1 mm (2.0 in) |
| 1925 | 42.7 mm (1.7 in) |
| 1926 | 59.7 mm (2.4 in) |
| 1927 | 64.5 mm (2.5 in) |
| 1928 | 45.2 mm (1.8 in) |
| 1929 | 44.5 mm (1.8 in) |
| 1930 | 36.6 mm (1.4 in) |
| 1931 | 52.1 mm (2.1 in) |
| 1932 | 53.3 mm (2.1 in) |
| 1933 | 68.6 mm (2.7 in) |
| 1934 | 38.1 mm (1.5 in) |
| 1935 | 46.5 mm (1.8 in) |
| 1936 | 52.3 mm (2.1 in) |
| 1937 | 124.0 mm (4.9 in) |
| 1938 | 52.8 mm (2.1 in) |
| 1939 | 101.6 mm (4.0 in) |
| 1940 | 62.2 mm (2.4 in) |
| 1941 | 59.4 mm (2.3 in) |
| 1942 | 43.9 mm (1.7 in) |
| 1943 | 88.9 mm (3.5 in) |
| 1944 | 40.4 mm (1.6 in) |
| 1945 | 43.2 mm (1.7 in) |
| 1946 | 76.2 mm (3.0 in) |
| 1947 | 73.7 mm (2.9 in) |
| 1948 | 44.5 mm (1.8 in) |
| 1949 | 44.5 mm (1.8 in) |
| 1950 | 54.1 mm (2.1 in) |
| 1951 | 38.6 mm (1.5 in) |
| 1952 | 48.3 mm (1.9 in) |
| 1953 | 59.7 mm (2.4 in) |
| 1954 | 51.3 mm (2.0 in) |
| 1955 | 80.5 mm (3.2 in) |
| 1956 | 49.8 mm (2.0 in) |
| 1957 | 50.3 mm (2.0 in) |
| 1958 | 58.4 mm (2.3 in) |
| 1959 | 65.8 mm (2.6 in) |
| 1960 | 32.5 mm (1.3 in) |
| 1961 | 46.2 mm (1.8 in) |
| 1962 | 47.8 mm (1.9 in) |
| 1963 | 62.5 mm (2.5 in) |
| 1964 | 71.6 mm (2.8 in) |
| 1965 | 45.7 mm (1.8 in) |
| 1966 | 79.5 mm (3.1 in) |
| 1967 | 37.8 mm (1.5 in) |
| 1968 | 53.1 mm (2.1 in) |
| 1969 | 66.0 mm (2.6 in) |
| 1970 | 52.1 mm (2.1 in) |
| 1971 | 48.5 mm (1.9 in) |
| 1972 | 69.3 mm (2.7 in) |
| 1973 | 53.3 mm (2.1 in) |
| 1974 | 35.6 mm (1.4 in) |
| 1975 | 54.9 mm (2.2 in) |
| 1976 | 39.4 mm (1.6 in) |
| 1977 | 49.3 mm (1.9 in) |
| 1978 | 43.9 mm (1.7 in) |
| 1979 | 99.1 mm (3.9 in) |
| 1980 | 49.5 mm (1.9 in) |
| 1981 | 45.2 mm (1.8 in) |
| 1982 | 47.8 mm (1.9 in) |
| 1983 | 45.2 mm (1.8 in) |
| 1984 | 38.9 mm (1.5 in) |
| 1985 | 54.9 mm (2.2 in) |
| 1986 | 50.5 mm (2.0 in) |
| 1987 | 81.3 mm (3.2 in) |
| 1988 | 53.3 mm (2.1 in) |
| 1989 | 61.0 mm (2.4 in) |
| 1990 | 55.9 mm (2.2 in) |
| 1991 | 36.3 mm (1.4 in) |
| 1992 | 67.1 mm (2.6 in) |
| 1993 | 56.6 mm (2.2 in) |
| 1994 | 37.6 mm (1.5 in) |
| 1995 | 76.7 mm (3.0 in) |
| 1996 | 55.9 mm (2.2 in) |
| 1997 | 74.2 mm (2.9 in) |
| 1998 | 41.1 mm (1.6 in) |
| 1999 | 82.6 mm (3.3 in) |
| 2000 | 95.3 mm (3.8 in) |
| 2001 | 12.7 mm (0.5 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1896 | 10.9 mm (0.4 in) |
| 1897 | 72.4 mm (2.9 in) |
| 1898 | 135.1 mm (5.3 in) |
| 1899 | 69.1 mm (2.7 in) |
| 1900 | 59.8 mm (2.4 in) |
| 1901 | 72.1 mm (2.8 in) |
| 1902 | 104.7 mm (4.1 in) |
| 1903 | 98.8 mm (3.9 in) |
| 1904 | 119.4 mm (4.7 in) |
| 1905 | 199.3 mm (7.8 in) |
| 1906 | 103.7 mm (4.1 in) |
| 1907 | 114.5 mm (4.5 in) |
| 1908 | 68.6 mm (2.7 in) |
| 1909 | 66.1 mm (2.6 in) |
| 1910 | 167.2 mm (6.6 in) |
| 1911 | 65.3 mm (2.6 in) |
| 1912 | 126.9 mm (5.0 in) |
| 1913 | 199.9 mm (7.9 in) |
| 1914 | 57.7 mm (2.3 in) |
| 1915 | 98.3 mm (3.9 in) |
| 1916 | 83.0 mm (3.3 in) |
| 1917 | 90.5 mm (3.6 in) |
| 1918 | 67.9 mm (2.7 in) |
| 1919 | 86.1 mm (3.4 in) |
| 1920 | 70.1 mm (2.8 in) |
| 1921 | 62.3 mm (2.5 in) |
| 1922 | 78.5 mm (3.1 in) |
| 1923 | 72.2 mm (2.8 in) |
| 1924 | 92.4 mm (3.6 in) |
| 1925 | 77.5 mm (3.1 in) |
| 1926 | 111.3 mm (4.4 in) |
| 1927 | 109.5 mm (4.3 in) |
| 1928 | 95.2 mm (3.7 in) |
| 1929 | 105.8 mm (4.2 in) |
| 1930 | 67.2 mm (2.6 in) |
| 1931 | 109.2 mm (4.3 in) |
| 1932 | 60.6 mm (2.4 in) |
| 1933 | 78.8 mm (3.1 in) |
| 1934 | 52.8 mm (2.1 in) |
| 1935 | 74.2 mm (2.9 in) |
| 1936 | 61.0 mm (2.4 in) |
| 1937 | 164.9 mm (6.5 in) |
| 1938 | 104.4 mm (4.1 in) |
| 1939 | 123.4 mm (4.9 in) |
| 1940 | 79.5 mm (3.1 in) |
| 1941 | 94.0 mm (3.7 in) |
| 1942 | 71.9 mm (2.8 in) |
| 1943 | 91.9 mm (3.6 in) |
| 1944 | 72.6 mm (2.9 in) |
| 1945 | 92.7 mm (3.6 in) |
| 1946 | 104.2 mm (4.1 in) |
| 1947 | 109.7 mm (4.3 in) |
| 1948 | 83.9 mm (3.3 in) |
| 1949 | 53.3 mm (2.1 in) |
| 1950 | 90.2 mm (3.6 in) |
| 1951 | 61.5 mm (2.4 in) |
| 1952 | 70.4 mm (2.8 in) |
| 1953 | 72.4 mm (2.9 in) |
| 1954 | 81.7 mm (3.2 in) |
| 1955 | 88.2 mm (3.5 in) |
| 1956 | 57.5 mm (2.3 in) |
| 1957 | 92.8 mm (3.7 in) |
| 1958 | 106.2 mm (4.2 in) |
| 1959 | 134.8 mm (5.3 in) |
| 1960 | 47.3 mm (1.9 in) |
| 1961 | 86.4 mm (3.4 in) |
| 1962 | 52.1 mm (2.1 in) |
| 1963 | 92.9 mm (3.7 in) |
| 1964 | 117.8 mm (4.6 in) |
| 1965 | 69.8 mm (2.7 in) |
| 1966 | 118.4 mm (4.7 in) |
| 1967 | 58.2 mm (2.3 in) |
| 1968 | 105.3 mm (4.1 in) |
| 1969 | 76.9 mm (3.0 in) |
| 1970 | 69.1 mm (2.7 in) |
| 1971 | 55.6 mm (2.2 in) |
| 1972 | 96.9 mm (3.8 in) |
| 1973 | 105.1 mm (4.1 in) |
| 1974 | 62.3 mm (2.5 in) |
| 1975 | 93.8 mm (3.7 in) |
| 1976 | 64.0 mm (2.5 in) |
| 1977 | 74.4 mm (2.9 in) |
| 1978 | 56.2 mm (2.2 in) |
| 1979 | 107.4 mm (4.2 in) |
| 1980 | 95.9 mm (3.8 in) |
| 1981 | 74.2 mm (2.9 in) |
| 1982 | 69.4 mm (2.7 in) |
| 1983 | 87.2 mm (3.4 in) |
| 1984 | 54.6 mm (2.1 in) |
| 1985 | 89.9 mm (3.5 in) |
| 1986 | 100.4 mm (4.0 in) |
| 1987 | 117.2 mm (4.6 in) |
| 1988 | 108.9 mm (4.3 in) |
| 1989 | 79.3 mm (3.1 in) |
| 1990 | 126.6 mm (5.0 in) |
| 1991 | 46.4 mm (1.8 in) |
| 1992 | 128.8 mm (5.1 in) |
| 1993 | 98.6 mm (3.9 in) |
| 1994 | 65.0 mm (2.6 in) |
| 1995 | 135.3 mm (5.3 in) |
| 1996 | 89.4 mm (3.5 in) |
| 1997 | 121.2 mm (4.8 in) |
| 1998 | 81.7 mm (3.2 in) |
| 1999 | 96.6 mm (3.8 in) |
| 2000 | 120.7 mm (4.8 in) |
| 2001 | 0.0 mm (0.00 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1896 | 3 days |
| 1897 | 19 days |
| 1898 | 13 days |
| 1899 | 30 days |
| 1900 | 23 days |
| 1901 | 16 days |
| 1902 | 13 days |
| 1903 | 21 days |
| 1904 | 26 days |
| 1905 | 16 days |
| 1906 | 14 days |
| 1907 | 11 days |
| 1908 | 26 days |
| 1909 | 12 days |
| 1910 | 23 days |
| 1911 | 13 days |
| 1912 | 24 days |
| 1913 | 14 days |
| 1914 | 15 days |
| 1915 | 10 days |
| 1916 | 15 days |
| 1917 | 23 days |
| 1918 | 18 days |
| 1919 | 13 days |
| 1920 | 20 days |
| 1921 | 20 days |
| 1922 | 25 days |
| 1923 | 16 days |
| 1924 | 37 days |
| 1925 | 19 days |
| 1926 | 9 days |
| 1927 | 19 days |
| 1928 | 14 days |
| 1929 | 17 days |
| 1930 | 16 days |
| 1931 | 17 days |
| 1932 | 15 days |
| 1933 | 17 days |
| 1934 | 21 days |
| 1935 | 13 days |
| 1936 | 18 days |
| 1937 | 22 days |
| 1938 | 20 days |
| 1939 | 15 days |
| 1940 | 13 days |
| 1941 | 18 days |
| 1942 | 14 days |
| 1943 | 20 days |
| 1944 | 16 days |
| 1945 | 17 days |
| 1946 | 14 days |
| 1947 | 18 days |
| 1948 | 18 days |
| 1949 | 13 days |
| 1950 | 13 days |
| 1951 | 19 days |
| 1952 | 27 days |
| 1953 | 26 days |
| 1954 | 15 days |
| 1955 | 28 days |
| 1956 | 12 days |
| 1957 | 23 days |
| 1958 | 12 days |
| 1959 | 15 days |
| 1960 | 17 days |
| 1961 | 17 days |
| 1962 | 18 days |
| 1963 | 48 days |
| 1964 | 26 days |
| 1965 | 29 days |
| 1966 | 16 days |
| 1967 | 25 days |
| 1968 | 18 days |
| 1969 | 16 days |
| 1970 | 15 days |
| 1971 | 17 days |
| 1972 | 15 days |
| 1973 | 14 days |
| 1974 | 18 days |
| 1975 | 15 days |
| 1976 | 24 days |
| 1977 | 32 days |
| 1978 | 14 days |
| 1979 | 11 days |
| 1980 | 19 days |
| 1981 | 18 days |
| 1982 | 19 days |
| 1983 | 21 days |
| 1984 | 15 days |
| 1985 | 15 days |
| 1986 | 17 days |
| 1987 | 28 days |
| 1988 | 23 days |
| 1989 | 11 days |
| 1990 | 17 days |
| 1991 | 16 days |
| 1992 | 15 days |
| 1993 | 18 days |
| 1994 | 15 days |
| 1995 | 25 days |
| 1996 | 25 days |
| 1997 | 19 days |
| 1998 | 18 days |
| 1999 | 22 days |
| 2000 | 24 days |
| 2001 | 5 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
92 years with a frostAcross 92 years with a frost, the median last spring frost at Delaware falls on 2 May and the median first autumn frost on 7 October, which leaves a median of 161 days between them.
In 1962 to 1993 the median growing season was 163 days. That is 11 days more than in 1898 to 1927.
Fitted over all years, the growing season changes by +1.0 days per decade at this station.
| Measure | Median, all years | Earliest period (1898 to 1927) | Recent period (1962 to 1993) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 2 May | 5 May | 1 May | 4 days earlier | -0.9 days per decade |
| First autumn frost | 7 October | 6 October | 6 October | no change | +0.1 days per decade |
| Growing days | 161 days | 152 days | 163 days | 11 days more | +1.0 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
98 years, 1898 to 1996A day with at least 51.7 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 125.3 mm (4.9 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 51.7 mm (2.0 in) | |
| 5 years | 67.0 mm (2.6 in) | |
| 10 years | 78.7 mm (3.1 in) | |
| 25 years | 95.6 mm (3.8 in) | |
| 50 years | 109.7 mm (4.3 in) | |
| 100 years | 125.3 mm (4.9 in) | Longer than the 98 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, 98 years of values from 1898 to 1996.
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: 124.0 mm (4.9 in) in 1937; 113.5 mm (4.5 in) in 1905; 104.1 mm (4.1 in) in 1912.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
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).