Baltimore Customs House Weather Records (USW00013777)
Record envelope, standing records and threshold days for Baltimore Customs House (USW00013777), Maryland, United States, with 129 years of record.
Key Facts for Baltimore Customs House
- Baltimore Customs House (USW00013777) is a weather station in Maryland, United States at 39.28 latitude and -76.62 longitude, 4 m (14 ft) above sea level.
- The station reports from 1871 to 1999, 129 years of record.
- 1,464 records set at Baltimore Customs House still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Baltimore Customs House set a daily record high maximum temperature of 37.2 C (99.0 F) on 31 May 1999.
About the Station
- Location: Maryland, United States, 39.28 latitude, -76.62 longitude.
- Elevation: 4 m (14 ft).
- Period of record: 1871 to 1999, 129 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 | 26.1 C (79.0 F) | -21.1 C (-6.0 F) | n/a | n/a |
| Feb | 28.9 C (84.0 F) | -21.7 C (-7.1 F) | n/a | n/a |
| Mar | 36.1 C (97.0 F) | -15.0 C (5.0 F) | n/a | n/a |
| Apr | 36.7 C (98.1 F) | -9.4 C (15.1 F) | n/a | n/a |
| May | 37.8 C (100.0 F) | 1.1 C (34.0 F) | n/a | n/a |
| Jun | 40.6 C (105.1 F) | 7.8 C (46.0 F) | n/a | n/a |
| Jul | 41.7 C (107.1 F) | 12.2 C (54.0 F) | n/a | n/a |
| Aug | 40.6 C (105.1 F) | 10.6 C (51.1 F) | n/a | n/a |
| Sep | 38.9 C (102.0 F) | 3.9 C (39.0 F) | n/a | n/a |
| Oct | 36.1 C (97.0 F) | -1.1 C (30.0 F) | n/a | n/a |
| Nov | 30.6 C (87.1 F) | -11.1 C (12.0 F) | n/a | n/a |
| Dec | 29.4 C (84.9 F) | -19.4 C (-2.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1872 | 5 |
| 1873 | 16 |
| 1874 | 10 |
| 1875 | 20 |
| 1876 | 22 |
| 1877 | 7 |
| 1878 | 3 |
| 1879 | 22 |
| 1880 | 18 |
| 1881 | 22 |
| 1882 | 6 |
| 1883 | 10 |
| 1884 | 10 |
| 1885 | 10 |
| 1886 | 20 |
| 1887 | 12 |
| 1888 | 18 |
| 1889 | 7 |
| 1890 | 11 |
| 1891 | 8 |
| 1892 | 8 |
| 1893 | 11 |
| 1894 | 16 |
| 1895 | 23 |
| 1896 | 20 |
| 1897 | 8 |
| 1898 | 7 |
| 1899 | 16 |
| 1900 | 18 |
| 1901 | 9 |
| 1902 | 7 |
| 1903 | 14 |
| 1904 | 18 |
| 1905 | 7 |
| 1906 | 6 |
| 1907 | 19 |
| 1908 | 8 |
| 1909 | 3 |
| 1910 | 6 |
| 1911 | 8 |
| 1912 | 7 |
| 1913 | 7 |
| 1914 | 21 |
| 1915 | 7 |
| 1916 | 3 |
| 1917 | 16 |
| 1918 | 14 |
| 1919 | 10 |
| 1920 | 7 |
| 1921 | 5 |
| 1922 | 3 |
| 1923 | 9 |
| 1924 | 6 |
| 1925 | 17 |
| 1926 | 10 |
| 1927 | 4 |
| 1928 | 15 |
| 1929 | 11 |
| 1930 | 28 |
| 1931 | 11 |
| 1932 | 8 |
| 1933 | 15 |
| 1934 | 12 |
| 1935 | 11 |
| 1936 | 11 |
| 1937 | 4 |
| 1938 | 8 |
| 1939 | 10 |
| 1940 | 12 |
| 1941 | 16 |
| 1942 | 9 |
| 1943 | 12 |
| 1944 | 3 |
| 1945 | 11 |
| 1946 | 6 |
| 1947 | 14 |
| 1948 | 10 |
| 1949 | 9 |
| 1950 | 14 |
| 1951 | 9 |
| 1952 | 4 |
| 1953 | 10 |
| 1954 | 9 |
| 1955 | 8 |
| 1956 | 15 |
| 1957 | 10 |
| 1958 | 5 |
| 1959 | 18 |
| 1960 | 11 |
| 1961 | 4 |
| 1962 | 11 |
| 1963 | 11 |
| 1964 | 11 |
| 1965 | 11 |
| 1966 | 12 |
| 1967 | 11 |
| 1968 | 5 |
| 1969 | 4 |
| 1970 | 12 |
| 1971 | 9 |
| 1972 | 11 |
| 1973 | 7 |
| 1974 | 16 |
| 1975 | 9 |
| 1976 | 14 |
| 1977 | 6 |
| 1978 | 3 |
| 1979 | 11 |
| 1980 | 5 |
| 1981 | 4 |
| 1982 | 10 |
| 1983 | 17 |
| 1984 | 15 |
| 1985 | 17 |
| 1986 | 15 |
| 1987 | 9 |
| 1988 | 23 |
| 1989 | 16 |
| 1990 | 29 |
| 1991 | 27 |
| 1992 | 13 |
| 1993 | 15 |
| 1994 | 12 |
| 1995 | 2 |
| 1996 | 5 |
| 1997 | 12 |
| 1998 | 41 |
| 1999 | 5 |
All-Time Record Progression
8 new records| Date | Kind | Detail |
|---|---|---|
| 1912-09-24 | Record daily precipitation | Record daily precipitation 151.6 mm (6.0 in) |
| 1918-08-06 | Record high maximum temperature | Record high maximum temperature 40.6 C (105.1 F) |
| 1925-06-06 | Record high minimum temperature | Record high minimum temperature 28.3 C (82.9 F) |
| 1933-08-23 | Record daily precipitation | Record daily precipitation 193.5 mm (7.6 in) |
| 1936-07-10 | Record high maximum temperature | Record high maximum temperature 41.7 C (107.1 F) |
| 1952-07-22 | Record high minimum temperature | Record high minimum temperature 28.9 C (84.0 F) |
| 1957-07-22 | Record high minimum temperature | Record high minimum temperature 29.4 C (84.9 F) |
| 1993-07-10 | Record high minimum temperature | Record high minimum temperature 31.1 C (88.0 F) |
Wettest Day of Each Month
Aug: 193.5 mm (7.6 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 81.8 mm (3.2 in) | 3 January 1944 |
| Feb | 88.4 mm (3.5 in) | 6 February 1896 |
| Mar | 89.2 mm (3.5 in) | 9 March 1881 |
| Apr | 95.0 mm (3.7 in) | 26 April 1937 |
| May | 98.8 mm (3.9 in) | 25 May 1952 |
| Jun | 113.5 mm (4.5 in) | 28 June 1885 |
| Jul | 118.4 mm (4.7 in) | 10 July 1975 |
| Aug | 193.5 mm (7.6 in) | 23 August 1933 |
| Sep | 151.6 mm (6.0 in) | 24 September 1912 |
| Oct | 111.3 mm (4.4 in) | 10 October 1922 |
| Nov | 79.0 mm (3.1 in) | 16 November 1926 |
| Dec | 101.1 mm (4.0 in) | 18 December 1977 |
Period of Record Coverage
1872 to 1999| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1872 | 162 | 44% | No |
| 1873 | 365 | 100% | Yes |
| 1874 | 365 | 100% | Yes |
| 1875 | 365 | 100% | Yes |
| 1876 | 366 | 100% | Yes |
| 1877 | 365 | 100% | Yes |
| 1878 | 365 | 100% | Yes |
| 1879 | 365 | 100% | Yes |
| 1880 | 366 | 100% | Yes |
| 1881 | 365 | 100% | Yes |
| 1882 | 365 | 100% | Yes |
| 1883 | 365 | 100% | Yes |
| 1884 | 366 | 100% | Yes |
| 1885 | 365 | 100% | Yes |
| 1886 | 365 | 100% | Yes |
| 1887 | 365 | 100% | Yes |
| 1888 | 366 | 100% | Yes |
| 1889 | 365 | 100% | Yes |
| 1890 | 365 | 100% | Yes |
| 1891 | 362 | 99% | Yes |
| 1892 | 366 | 100% | Yes |
| 1893 | 349 | 96% | Yes |
| 1894 | 350 | 96% | Yes |
| 1895 | 354 | 97% | Yes |
| 1896 | 365 | 100% | Yes |
| 1897 | 365 | 100% | Yes |
| 1898 | 365 | 100% | Yes |
| 1899 | 365 | 100% | Yes |
| 1900 | 365 | 100% | Yes |
| 1901 | 365 | 100% | Yes |
| 1902 | 365 | 100% | Yes |
| 1903 | 365 | 100% | Yes |
| 1904 | 366 | 100% | Yes |
| 1905 | 365 | 100% | Yes |
| 1906 | 365 | 100% | Yes |
| 1907 | 365 | 100% | Yes |
| 1908 | 366 | 100% | Yes |
| 1909 | 365 | 100% | Yes |
| 1910 | 365 | 100% | Yes |
| 1911 | 365 | 100% | Yes |
| 1912 | 366 | 100% | Yes |
| 1913 | 365 | 100% | Yes |
| 1914 | 365 | 100% | Yes |
| 1915 | 365 | 100% | Yes |
| 1916 | 366 | 100% | Yes |
| 1917 | 365 | 100% | Yes |
| 1918 | 365 | 100% | Yes |
| 1919 | 365 | 100% | Yes |
| 1920 | 366 | 100% | Yes |
| 1921 | 365 | 100% | Yes |
| 1922 | 365 | 100% | Yes |
| 1923 | 365 | 100% | Yes |
| 1924 | 366 | 100% | Yes |
| 1925 | 365 | 100% | Yes |
| 1926 | 365 | 100% | Yes |
| 1927 | 365 | 100% | Yes |
| 1928 | 366 | 100% | Yes |
| 1929 | 365 | 100% | Yes |
| 1930 | 365 | 100% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 365 | 100% | Yes |
| 1934 | 365 | 100% | Yes |
| 1935 | 365 | 100% | Yes |
| 1936 | 366 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 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 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 302 | 83% | No |
| 1996 | 349 | 95% | Yes |
| 1997 | 364 | 100% | Yes |
| 1998 | 361 | 99% | Yes |
| 1999 | 151 | 41% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 31 May 1999 | Baltimore Customs House, US | daily high max | 37.2 C (99.0 F) | 1.1 C (2.0 F) | 10 years | 15 of 100 (Routine) |
| 30 May 1999 | Baltimore Customs House, US | daily high max (Tie) | 37.2 C (99.0 F) | tie | 8 years | 3 of 100 (Routine) |
| 6 May 1999 | Baltimore Customs House, US | daily low min | 2.2 C (36.0 F) | 2.2 C (4.0 F) | 107 years | 45 of 100 (Notable) |
| 12 February 1999 | Baltimore Customs House, US | daily high max | 23.3 C (73.9 F) | 5.0 C (9.0 F) | 100 years | 48 of 100 (Notable) |
| 3 February 1999 | Baltimore Customs House, US | daily high min | 9.4 C (48.9 F) | 3.3 C (5.9 F) | 12 years | 19 of 100 (Routine) |
| 28 January 1999 | Baltimore Customs House, US | daily high max | 23.9 C (75.0 F) | 2.8 C (5.0 F) | 55 years | 30 of 100 (Routine) |
| 7 December 1998 | Baltimore Customs House, US | monthly high max | 29.4 C (84.9 F) | 1.6 C (2.9 F) | 0 years | 22 of 100 (Routine) |
| 6 December 1998 | Baltimore Customs House, US | monthly high max | 27.8 C (82.0 F) | 1.1 C (2.0 F) | 13 years | 25 of 100 (Routine) |
| 6 December 1998 | Baltimore Customs House, US | daily high min (Tie) | 13.3 C (55.9 F) | tie | 16 years | 3 of 100 (Routine) |
| 5 December 1998 | Baltimore Customs House, US | daily high min | 17.8 C (64.0 F) | 3.4 C (6.1 F) | 24 years | 24 of 100 (Routine) |
| 5 December 1998 | Baltimore Customs House, US | daily high max | 24.4 C (75.9 F) | 2.2 C (4.0 F) | 16 years | 17 of 100 (Routine) |
| 4 December 1998 | Baltimore Customs House, US | monthly high min | 18.3 C (64.9 F) | 2.7 C (4.9 F) | 7 years | 27 of 100 (Routine) |
| 4 December 1998 | Baltimore Customs House, US | monthly high max (Tie) | 26.7 C (80.1 F) | tie | 13 years | 6 of 100 (Routine) |
| 3 December 1998 | Baltimore Customs House, US | monthly high max (Tie) | 26.7 C (80.1 F) | tie | 13 years | 6 of 100 (Routine) |
| 1 December 1998 | Baltimore Customs House, US | daily high max | 22.8 C (73.0 F) | 1.1 C (2.0 F) | 71 years | 32 of 100 (Routine) |
| 29 November 1998 | Baltimore Customs House, US | daily high max | 27.8 C (82.0 F) | 4.5 C (8.1 F) | 71 years | 39 of 100 (Notable) |
| 28 November 1998 | Baltimore Customs House, US | daily high max | 25.0 C (77.0 F) | 2.8 C (5.0 F) | 24 years | 22 of 100 (Routine) |
| 22 October 1998 | Baltimore Customs House, US | daily low min (Tie) | 1.1 C (34.0 F) | tie | 98 years | 9 of 100 (Routine) |
| 28 September 1998 | Baltimore Customs House, US | daily high max (Tie) | 32.8 C (91.0 F) | tie | 111 years | 10 of 100 (Routine) |
| 27 September 1998 | Baltimore Customs House, US | monthly high max | 38.9 C (102.0 F) | 0.6 C (1.1 F) | 117 years | 51 of 100 (Notable) |
Climate Trend
125 complete years, 1873 to 1998| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1873 | 12.4 C | -1.41 C |
| 1874 | 12.9 C | -0.90 C |
| 1875 | 11.5 C | -2.30 C |
| 1876 | 12.5 C | -1.37 C |
| 1877 | 13.4 C | -0.44 C |
| 1878 | 13.8 C | -0.03 C |
| 1879 | 13.0 C | -0.84 C |
| 1880 | 13.6 C | -0.19 C |
| 1881 | 13.9 C | +0.12 C |
| 1882 | 13.2 C | -0.65 C |
| 1883 | 12.8 C | -1.07 C |
| 1884 | 13.6 C | -0.26 C |
| 1885 | 12.5 C | -1.32 C |
| 1886 | 12.3 C | -1.50 C |
| 1887 | 12.8 C | -1.00 C |
| 1888 | 12.1 C | -1.73 C |
| 1889 | 13.2 C | -0.62 C |
| 1890 | 13.7 C | -0.12 C |
| 1891 | 13.1 C | -0.73 C |
| 1892 | 12.3 C | -1.57 C |
| 1893 | 12.0 C | -1.78 C |
| 1894 | 13.3 C | -0.48 C |
| 1895 | 12.3 C | -1.48 C |
| 1896 | 13.2 C | -0.59 C |
| 1897 | 12.9 C | -0.94 C |
| 1898 | 13.5 C | -0.31 C |
| 1899 | 12.8 C | -1.00 C |
| 1900 | 13.9 C | +0.09 C |
| 1901 | 12.4 C | -1.38 C |
| 1902 | 12.9 C | -0.91 C |
| 1903 | 12.8 C | -1.05 C |
| 1904 | 11.5 C | -2.36 C |
| 1905 | 12.6 C | -1.20 C |
| 1906 | 13.3 C | -0.51 C |
| 1907 | 12.0 C | -1.81 C |
| 1908 | 13.4 C | -0.38 C |
| 1909 | 13.2 C | -0.58 C |
| 1910 | 13.2 C | -0.63 C |
| 1911 | 13.7 C | -0.15 C |
| 1912 | 12.8 C | -1.03 C |
| 1913 | 14.4 C | +0.57 C |
| 1914 | 13.0 C | -0.82 C |
| 1915 | 13.2 C | -0.58 C |
| 1916 | 12.9 C | -0.94 C |
| 1917 | 11.9 C | -1.95 C |
| 1918 | 13.2 C | -0.64 C |
| 1919 | 13.7 C | -0.12 C |
| 1920 | 12.9 C | -0.90 C |
| 1921 | 14.6 C | +0.77 C |
| 1922 | 13.8 C | +0.00 C |
| 1923 | 13.7 C | -0.17 C |
| 1924 | 12.6 C | -1.21 C |
| 1925 | 13.6 C | -0.22 C |
| 1926 | 12.6 C | -1.19 C |
| 1927 | 13.7 C | -0.14 C |
| 1928 | 13.6 C | -0.19 C |
| 1929 | 13.8 C | -0.04 C |
| 1930 | 14.5 C | +0.66 C |
| 1931 | 15.1 C | +1.31 C |
| 1932 | 14.4 C | +0.55 C |
| 1933 | 14.2 C | +0.38 C |
| 1934 | 13.5 C | -0.33 C |
| 1935 | 13.3 C | -0.52 C |
| 1936 | 13.6 C | -0.27 C |
| 1937 | 13.9 C | +0.03 C |
| 1938 | 14.4 C | +0.61 C |
| 1939 | 14.6 C | +0.75 C |
| 1940 | 12.8 C | -1.00 C |
| 1941 | 14.6 C | +0.77 C |
| 1942 | 14.2 C | +0.35 C |
| 1943 | 13.8 C | -0.01 C |
| 1944 | 13.9 C | +0.09 C |
| 1945 | 14.1 C | +0.27 C |
| 1946 | 14.7 C | +0.83 C |
| 1947 | 13.7 C | -0.16 C |
| 1948 | 13.9 C | +0.05 C |
| 1949 | 15.1 C | +1.30 C |
| 1950 | 13.7 C | -0.12 C |
| 1951 | 14.1 C | +0.28 C |
| 1952 | 14.6 C | +0.74 C |
| 1953 | 15.0 C | +1.14 C |
| 1954 | 14.8 C | +0.99 C |
| 1955 | 14.1 C | +0.27 C |
| 1956 | 14.5 C | +0.71 C |
| 1957 | 15.0 C | +1.19 C |
| 1958 | 13.6 C | -0.20 C |
| 1959 | 15.2 C | +1.33 C |
| 1960 | 14.0 C | +0.14 C |
| 1961 | 14.2 C | +0.35 C |
| 1962 | 13.5 C | -0.29 C |
| 1963 | 13.6 C | -0.18 C |
| 1964 | 14.6 C | +0.75 C |
| 1965 | 14.5 C | +0.64 C |
| 1966 | 14.2 C | +0.36 C |
| 1967 | 13.9 C | +0.08 C |
| 1968 | 15.0 C | +1.17 C |
| 1969 | 14.7 C | +0.84 C |
| 1970 | 14.6 C | +0.73 C |
| 1971 | 14.4 C | +0.57 C |
| 1972 | 13.8 C | +0.02 C |
| 1973 | 15.2 C | +1.36 C |
| 1974 | 14.4 C | +0.57 C |
| 1975 | 14.9 C | +1.04 C |
| 1976 | 14.5 C | +0.67 C |
| 1977 | 14.9 C | +1.06 C |
| 1978 | 14.2 C | +0.34 C |
| 1979 | 14.4 C | +0.60 C |
| 1980 | 14.3 C | +0.46 C |
| 1981 | 14.3 C | +0.52 C |
| 1982 | 14.3 C | +0.43 C |
| 1983 | 14.6 C | +0.78 C |
| 1984 | 14.3 C | +0.49 C |
| 1985 | 15.2 C | +1.34 C |
| 1986 | 15.1 C | +1.26 C |
| 1987 | 15.2 C | +1.36 C |
| 1988 | 14.2 C | +0.40 C |
| 1989 | 14.4 C | +0.59 C |
| 1990 | 16.1 C | +2.31 C |
| 1991 | 16.2 C | +2.37 C |
| 1992 | 14.8 C | +1.02 C |
| 1993 | 14.3 C | +0.43 C |
| 1994 | 14.5 C | +0.67 C |
| 1996 | 14.3 C | +0.50 C |
| 1997 | 16.0 C | +2.18 C |
| 1998 | 17.8 C | +3.98 C |
The annual mean temperature here has risen by 0.2 C (0.2 to 0.2) per decade over 1873 to 1998. In Fahrenheit: 0.4 F (0.3 to 0.4) per decade. The slope is a straight line fitted to 125 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.2 C (0.2 to 0.2) per decade | 0.4 F (0.3 to 0.4) per decade | 1873 to 1998 | 125 | Rise |
| Mean daily maximum | 0.2 C (0.2 to 0.3) per decade | 0.4 F (0.3 to 0.5) per decade | 1873 to 1998 | 125 | Rise |
| Mean daily minimum | 0.2 C (0.2 to 0.2) per decade | 0.4 F (0.3 to 0.4) per decade | 1873 to 1998 | 125 | 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
1871 to 1999| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 41.7 C (107.1 F) | 1936 | 37.2 C (99.0 F) | 128 |
| Coldest night (TNn) | -21.7 C (-7.1 F) | 1899 | -12.8 C (9.0 F) | 128 |
| Wettest day (Rx1day) | 193.5 mm (7.6 in) | 1933 | 69.8 mm (2.7 in) | 126 |
| Wettest five days (Rx5day) | 283.6 mm (11.2 in) | 1933 | 100.3 mm (3.9 in) | 126 |
| Longest dry spell (CDD) | 41 days | 1977 | 18 days | 126 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1871 | n/a |
| 1872 | 35.6 C (96.1 F) |
| 1873 | 35.6 C (96.1 F) |
| 1874 | 36.7 C (98.1 F) |
| 1875 | 36.1 C (97.0 F) |
| 1876 | 37.2 C (99.0 F) |
| 1877 | 35.0 C (95.0 F) |
| 1878 | 36.7 C (98.1 F) |
| 1879 | 37.2 C (99.0 F) |
| 1880 | 37.2 C (99.0 F) |
| 1881 | 38.3 C (100.9 F) |
| 1882 | 36.1 C (97.0 F) |
| 1883 | 35.6 C (96.1 F) |
| 1884 | 35.0 C (95.0 F) |
| 1885 | 37.2 C (99.0 F) |
| 1886 | 33.3 C (91.9 F) |
| 1887 | 38.9 C (102.0 F) |
| 1888 | 35.6 C (96.1 F) |
| 1889 | 33.9 C (93.0 F) |
| 1890 | 36.7 C (98.1 F) |
| 1891 | 34.4 C (93.9 F) |
| 1892 | 37.2 C (99.0 F) |
| 1893 | 36.7 C (98.1 F) |
| 1894 | 36.7 C (98.1 F) |
| 1895 | 36.1 C (97.0 F) |
| 1896 | 36.7 C (98.1 F) |
| 1897 | 36.1 C (97.0 F) |
| 1898 | 40.0 C (104.0 F) |
| 1899 | 36.7 C (98.1 F) |
| 1900 | 37.8 C (100.0 F) |
| 1901 | 39.4 C (102.9 F) |
| 1902 | 37.2 C (99.0 F) |
| 1903 | 36.1 C (97.0 F) |
| 1904 | 36.1 C (97.0 F) |
| 1905 | 36.7 C (98.1 F) |
| 1906 | 35.6 C (96.1 F) |
| 1907 | 33.9 C (93.0 F) |
| 1908 | 36.7 C (98.1 F) |
| 1909 | 36.7 C (98.1 F) |
| 1910 | 35.6 C (96.1 F) |
| 1911 | 37.2 C (99.0 F) |
| 1912 | 34.4 C (93.9 F) |
| 1913 | 36.7 C (98.1 F) |
| 1914 | 37.2 C (99.0 F) |
| 1915 | 35.6 C (96.1 F) |
| 1916 | 36.7 C (98.1 F) |
| 1917 | 37.2 C (99.0 F) |
| 1918 | 40.6 C (105.1 F) |
| 1919 | 38.9 C (102.0 F) |
| 1920 | 36.1 C (97.0 F) |
| 1921 | 35.6 C (96.1 F) |
| 1922 | 35.0 C (95.0 F) |
| 1923 | 37.8 C (100.0 F) |
| 1924 | 37.8 C (100.0 F) |
| 1925 | 38.3 C (100.9 F) |
| 1926 | 38.9 C (102.0 F) |
| 1927 | 36.7 C (98.1 F) |
| 1928 | 36.1 C (97.0 F) |
| 1929 | 36.1 C (97.0 F) |
| 1930 | 40.0 C (104.0 F) |
| 1931 | 38.3 C (100.9 F) |
| 1932 | 37.2 C (99.0 F) |
| 1933 | 37.8 C (100.0 F) |
| 1934 | 40.6 C (105.1 F) |
| 1935 | 35.0 C (95.0 F) |
| 1936 | 41.7 C (107.1 F) |
| 1937 | 36.1 C (97.0 F) |
| 1938 | 36.7 C (98.1 F) |
| 1939 | 37.8 C (100.0 F) |
| 1940 | 38.3 C (100.9 F) |
| 1941 | 39.4 C (102.9 F) |
| 1942 | 37.2 C (99.0 F) |
| 1943 | 37.2 C (99.0 F) |
| 1944 | 37.2 C (99.0 F) |
| 1945 | 37.8 C (100.0 F) |
| 1946 | 35.0 C (95.0 F) |
| 1947 | 36.1 C (97.0 F) |
| 1948 | 38.9 C (102.0 F) |
| 1949 | 37.8 C (100.0 F) |
| 1950 | 35.0 C (95.0 F) |
| 1951 | 35.6 C (96.1 F) |
| 1952 | 37.8 C (100.0 F) |
| 1953 | 37.8 C (100.0 F) |
| 1954 | 38.9 C (102.0 F) |
| 1955 | 38.3 C (100.9 F) |
| 1956 | 37.8 C (100.0 F) |
| 1957 | 39.4 C (102.9 F) |
| 1958 | 34.4 C (93.9 F) |
| 1959 | 38.3 C (100.9 F) |
| 1960 | 36.7 C (98.1 F) |
| 1961 | 36.1 C (97.0 F) |
| 1962 | 37.8 C (100.0 F) |
| 1963 | 36.7 C (98.1 F) |
| 1964 | 36.7 C (98.1 F) |
| 1965 | 35.6 C (96.1 F) |
| 1966 | 38.9 C (102.0 F) |
| 1967 | 35.6 C (96.1 F) |
| 1968 | 37.8 C (100.0 F) |
| 1969 | 37.8 C (100.0 F) |
| 1970 | 36.7 C (98.1 F) |
| 1971 | 36.1 C (97.0 F) |
| 1972 | 37.2 C (99.0 F) |
| 1973 | 38.3 C (100.9 F) |
| 1974 | 37.2 C (99.0 F) |
| 1975 | 38.3 C (100.9 F) |
| 1976 | 35.6 C (96.1 F) |
| 1977 | 38.3 C (100.9 F) |
| 1978 | 38.3 C (100.9 F) |
| 1979 | 36.7 C (98.1 F) |
| 1980 | 38.9 C (102.0 F) |
| 1981 | 37.8 C (100.0 F) |
| 1982 | 36.1 C (97.0 F) |
| 1983 | 40.6 C (105.1 F) |
| 1984 | 37.8 C (100.0 F) |
| 1985 | 38.9 C (102.0 F) |
| 1986 | 38.9 C (102.0 F) |
| 1987 | 39.4 C (102.9 F) |
| 1988 | 40.6 C (105.1 F) |
| 1989 | 38.3 C (100.9 F) |
| 1990 | 40.0 C (104.0 F) |
| 1991 | 40.0 C (104.0 F) |
| 1992 | 38.9 C (102.0 F) |
| 1993 | 40.0 C (104.0 F) |
| 1994 | 38.9 C (102.0 F) |
| 1995 | 36.7 C (98.1 F) |
| 1996 | 35.6 C (96.1 F) |
| 1997 | 40.0 C (104.0 F) |
| 1998 | 40.0 C (104.0 F) |
| 1999 | 37.2 C (99.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1871 | n/a |
| 1872 | -14.4 C (6.1 F) |
| 1873 | -20.0 C (-4.0 F) |
| 1874 | -10.6 C (12.9 F) |
| 1875 | -18.9 C (-2.0 F) |
| 1876 | -17.2 C (1.0 F) |
| 1877 | -17.2 C (1.0 F) |
| 1878 | -14.4 C (6.1 F) |
| 1879 | -17.8 C (0.0 F) |
| 1880 | -19.4 C (-2.9 F) |
| 1881 | -21.1 C (-6.0 F) |
| 1882 | -13.9 C (7.0 F) |
| 1883 | -11.7 C (10.9 F) |
| 1884 | -13.3 C (8.1 F) |
| 1885 | -16.1 C (3.0 F) |
| 1886 | -18.3 C (-0.9 F) |
| 1887 | -13.9 C (7.0 F) |
| 1888 | -12.8 C (9.0 F) |
| 1889 | -16.1 C (3.0 F) |
| 1890 | -11.1 C (12.0 F) |
| 1891 | -8.9 C (16.0 F) |
| 1892 | -11.1 C (12.0 F) |
| 1893 | -17.2 C (1.0 F) |
| 1894 | -13.9 C (7.0 F) |
| 1895 | -17.2 C (1.0 F) |
| 1896 | -15.0 C (5.0 F) |
| 1897 | -13.3 C (8.1 F) |
| 1898 | -12.2 C (10.0 F) |
| 1899 | -21.7 C (-7.1 F) |
| 1900 | -13.3 C (8.1 F) |
| 1901 | -11.7 C (10.9 F) |
| 1902 | -10.6 C (12.9 F) |
| 1903 | -15.0 C (5.0 F) |
| 1904 | -16.7 C (1.9 F) |
| 1905 | -15.0 C (5.0 F) |
| 1906 | -13.3 C (8.1 F) |
| 1907 | -12.8 C (9.0 F) |
| 1908 | -12.8 C (9.0 F) |
| 1909 | -12.8 C (9.0 F) |
| 1910 | -13.3 C (8.1 F) |
| 1911 | -10.0 C (14.0 F) |
| 1912 | -18.9 C (-2.0 F) |
| 1913 | -10.0 C (14.0 F) |
| 1914 | -15.0 C (5.0 F) |
| 1915 | -8.9 C (16.0 F) |
| 1916 | -13.3 C (8.1 F) |
| 1917 | -18.9 C (-2.0 F) |
| 1918 | -17.8 C (0.0 F) |
| 1919 | -13.9 C (7.0 F) |
| 1920 | -13.3 C (8.1 F) |
| 1921 | -12.2 C (10.0 F) |
| 1922 | -13.3 C (8.1 F) |
| 1923 | -11.1 C (12.0 F) |
| 1924 | -13.9 C (7.0 F) |
| 1925 | -15.6 C (3.9 F) |
| 1926 | -13.3 C (8.1 F) |
| 1927 | -13.3 C (8.1 F) |
| 1928 | -12.2 C (10.0 F) |
| 1929 | -12.8 C (9.0 F) |
| 1930 | -12.8 C (9.0 F) |
| 1931 | -7.2 C (19.0 F) |
| 1932 | -9.4 C (15.1 F) |
| 1933 | -14.4 C (6.1 F) |
| 1934 | -21.7 C (-7.1 F) |
| 1935 | -16.7 C (1.9 F) |
| 1936 | -17.8 C (0.0 F) |
| 1937 | -6.7 C (19.9 F) |
| 1938 | -8.9 C (16.0 F) |
| 1939 | -8.3 C (17.1 F) |
| 1940 | -13.3 C (8.1 F) |
| 1941 | -9.4 C (15.1 F) |
| 1942 | -15.0 C (5.0 F) |
| 1943 | -14.4 C (6.1 F) |
| 1944 | -9.4 C (15.1 F) |
| 1945 | -11.7 C (10.9 F) |
| 1946 | -9.4 C (15.1 F) |
| 1947 | -14.4 C (6.1 F) |
| 1948 | -13.9 C (7.0 F) |
| 1949 | -6.7 C (19.9 F) |
| 1950 | -10.0 C (14.0 F) |
| 1951 | -11.1 C (12.0 F) |
| 1952 | -9.4 C (15.1 F) |
| 1953 | -6.7 C (19.9 F) |
| 1954 | -8.9 C (16.0 F) |
| 1955 | -12.2 C (10.0 F) |
| 1956 | -6.7 C (19.9 F) |
| 1957 | -13.9 C (7.0 F) |
| 1958 | -13.3 C (8.1 F) |
| 1959 | -11.7 C (10.9 F) |
| 1960 | -12.2 C (10.0 F) |
| 1961 | -14.4 C (6.1 F) |
| 1962 | -12.8 C (9.0 F) |
| 1963 | -15.6 C (3.9 F) |
| 1964 | -11.1 C (12.0 F) |
| 1965 | -12.2 C (10.0 F) |
| 1966 | -12.8 C (9.0 F) |
| 1967 | -11.7 C (10.9 F) |
| 1968 | -12.2 C (10.0 F) |
| 1969 | -10.0 C (14.0 F) |
| 1970 | -12.2 C (10.0 F) |
| 1971 | -12.2 C (10.0 F) |
| 1972 | -13.3 C (8.1 F) |
| 1973 | -11.7 C (10.9 F) |
| 1974 | -7.2 C (19.0 F) |
| 1975 | -8.3 C (17.1 F) |
| 1976 | -10.0 C (14.0 F) |
| 1977 | -13.3 C (8.1 F) |
| 1978 | -10.0 C (14.0 F) |
| 1979 | -13.9 C (7.0 F) |
| 1980 | -13.3 C (8.1 F) |
| 1981 | -12.2 C (10.0 F) |
| 1982 | -18.9 C (-2.0 F) |
| 1983 | -14.4 C (6.1 F) |
| 1984 | -13.3 C (8.1 F) |
| 1985 | -18.9 C (-2.0 F) |
| 1986 | -11.1 C (12.0 F) |
| 1987 | -11.1 C (12.0 F) |
| 1988 | -13.3 C (8.1 F) |
| 1989 | -13.9 C (7.0 F) |
| 1990 | -10.6 C (12.9 F) |
| 1991 | -9.4 C (15.1 F) |
| 1992 | -7.8 C (18.0 F) |
| 1993 | -12.2 C (10.0 F) |
| 1994 | -20.0 C (-4.0 F) |
| 1995 | -12.8 C (9.0 F) |
| 1996 | -12.8 C (9.0 F) |
| 1997 | -11.7 C (10.9 F) |
| 1998 | -4.4 C (24.1 F) |
| 1999 | -6.1 C (21.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1871 | 57.9 mm (2.3 in) |
| 1872 | 56.4 mm (2.2 in) |
| 1873 | 97.0 mm (3.8 in) |
| 1874 | 70.9 mm (2.8 in) |
| 1875 | 63.5 mm (2.5 in) |
| 1876 | 100.1 mm (3.9 in) |
| 1877 | 71.6 mm (2.8 in) |
| 1878 | 72.4 mm (2.9 in) |
| 1879 | 51.6 mm (2.0 in) |
| 1880 | 94.2 mm (3.7 in) |
| 1881 | 89.2 mm (3.5 in) |
| 1882 | 57.9 mm (2.3 in) |
| 1883 | 51.8 mm (2.0 in) |
| 1884 | 95.3 mm (3.8 in) |
| 1885 | 113.5 mm (4.5 in) |
| 1886 | 75.7 mm (3.0 in) |
| 1887 | 70.1 mm (2.8 in) |
| 1888 | 62.7 mm (2.5 in) |
| 1889 | 92.7 mm (3.6 in) |
| 1890 | 68.8 mm (2.7 in) |
| 1891 | 101.6 mm (4.0 in) |
| 1892 | 46.5 mm (1.8 in) |
| 1893 | 30.7 mm (1.2 in) |
| 1894 | 48.3 mm (1.9 in) |
| 1895 | 120.9 mm (4.8 in) |
| 1896 | 88.4 mm (3.5 in) |
| 1897 | 53.3 mm (2.1 in) |
| 1898 | 37.3 mm (1.5 in) |
| 1899 | 54.4 mm (2.1 in) |
| 1900 | 56.1 mm (2.2 in) |
| 1901 | 73.2 mm (2.9 in) |
| 1902 | 83.6 mm (3.3 in) |
| 1903 | 99.1 mm (3.9 in) |
| 1904 | 81.3 mm (3.2 in) |
| 1905 | 66.5 mm (2.6 in) |
| 1906 | 101.3 mm (4.0 in) |
| 1907 | 79.5 mm (3.1 in) |
| 1908 | 40.9 mm (1.6 in) |
| 1909 | 78.2 mm (3.1 in) |
| 1910 | 86.1 mm (3.4 in) |
| 1911 | 77.5 mm (3.1 in) |
| 1912 | 151.6 mm (6.0 in) |
| 1913 | 69.9 mm (2.8 in) |
| 1914 | 53.8 mm (2.1 in) |
| 1915 | 100.1 mm (3.9 in) |
| 1916 | 47.5 mm (1.9 in) |
| 1917 | 45.0 mm (1.8 in) |
| 1918 | 43.4 mm (1.7 in) |
| 1919 | 41.7 mm (1.6 in) |
| 1920 | 67.1 mm (2.6 in) |
| 1921 | 52.3 mm (2.1 in) |
| 1922 | 111.3 mm (4.4 in) |
| 1923 | 41.1 mm (1.6 in) |
| 1924 | 50.0 mm (2.0 in) |
| 1925 | 61.5 mm (2.4 in) |
| 1926 | 79.0 mm (3.1 in) |
| 1927 | 50.3 mm (2.0 in) |
| 1928 | 68.3 mm (2.7 in) |
| 1929 | 86.1 mm (3.4 in) |
| 1930 | 56.6 mm (2.2 in) |
| 1931 | 52.8 mm (2.1 in) |
| 1932 | 83.8 mm (3.3 in) |
| 1933 | 193.5 mm (7.6 in) |
| 1934 | 97.5 mm (3.8 in) |
| 1935 | 87.6 mm (3.4 in) |
| 1936 | 63.8 mm (2.5 in) |
| 1937 | 95.0 mm (3.7 in) |
| 1938 | 41.9 mm (1.6 in) |
| 1939 | 69.6 mm (2.7 in) |
| 1940 | 61.0 mm (2.4 in) |
| 1941 | 92.7 mm (3.6 in) |
| 1942 | 62.0 mm (2.4 in) |
| 1943 | 80.8 mm (3.2 in) |
| 1944 | 81.8 mm (3.2 in) |
| 1945 | 56.4 mm (2.2 in) |
| 1946 | 69.6 mm (2.7 in) |
| 1947 | 77.7 mm (3.1 in) |
| 1948 | 70.4 mm (2.8 in) |
| 1949 | 46.2 mm (1.8 in) |
| 1950 | 96.8 mm (3.8 in) |
| 1951 | 71.6 mm (2.8 in) |
| 1952 | 100.6 mm (4.0 in) |
| 1953 | 111.8 mm (4.4 in) |
| 1954 | 36.1 mm (1.4 in) |
| 1955 | 105.7 mm (4.2 in) |
| 1956 | 102.9 mm (4.1 in) |
| 1957 | 114.3 mm (4.5 in) |
| 1958 | 75.4 mm (3.0 in) |
| 1959 | 51.3 mm (2.0 in) |
| 1960 | 88.1 mm (3.5 in) |
| 1961 | 52.1 mm (2.1 in) |
| 1962 | 60.7 mm (2.4 in) |
| 1963 | 64.3 mm (2.5 in) |
| 1964 | 62.0 mm (2.4 in) |
| 1965 | 46.5 mm (1.8 in) |
| 1966 | 95.0 mm (3.7 in) |
| 1967 | 77.2 mm (3.0 in) |
| 1968 | 98.0 mm (3.9 in) |
| 1969 | 42.4 mm (1.7 in) |
| 1970 | 41.1 mm (1.6 in) |
| 1971 | 155.2 mm (6.1 in) |
| 1972 | 92.7 mm (3.6 in) |
| 1973 | 55.9 mm (2.2 in) |
| 1974 | 98.3 mm (3.9 in) |
| 1975 | 118.4 mm (4.7 in) |
| 1976 | 150.9 mm (5.9 in) |
| 1977 | 101.1 mm (4.0 in) |
| 1978 | 66.8 mm (2.6 in) |
| 1979 | 116.8 mm (4.6 in) |
| 1980 | 54.1 mm (2.1 in) |
| 1981 | 40.4 mm (1.6 in) |
| 1982 | 47.5 mm (1.9 in) |
| 1983 | 80.8 mm (3.2 in) |
| 1984 | 44.5 mm (1.8 in) |
| 1985 | 117.1 mm (4.6 in) |
| 1986 | 74.9 mm (2.9 in) |
| 1987 | 63.5 mm (2.5 in) |
| 1988 | 39.1 mm (1.5 in) |
| 1989 | 73.2 mm (2.9 in) |
| 1990 | 60.2 mm (2.4 in) |
| 1991 | 52.6 mm (2.1 in) |
| 1992 | 49.3 mm (1.9 in) |
| 1993 | 63.5 mm (2.5 in) |
| 1994 | 65.8 mm (2.6 in) |
| 1995 | 43.9 mm (1.7 in) |
| 1996 | 0.0 mm (0.00 in) |
| 1997 | n/a |
| 1998 | n/a |
| 1999 | n/a |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1871 | 86.9 mm (3.4 in) |
| 1872 | 79.5 mm (3.1 in) |
| 1873 | 169.6 mm (6.7 in) |
| 1874 | 99.4 mm (3.9 in) |
| 1875 | 71.9 mm (2.8 in) |
| 1876 | 152.6 mm (6.0 in) |
| 1877 | 103.1 mm (4.1 in) |
| 1878 | 81.3 mm (3.2 in) |
| 1879 | 104.7 mm (4.1 in) |
| 1880 | 120.2 mm (4.7 in) |
| 1881 | 107.2 mm (4.2 in) |
| 1882 | 100.4 mm (4.0 in) |
| 1883 | 85.8 mm (3.4 in) |
| 1884 | 99.3 mm (3.9 in) |
| 1885 | 131.8 mm (5.2 in) |
| 1886 | 107.0 mm (4.2 in) |
| 1887 | 110.0 mm (4.3 in) |
| 1888 | 90.7 mm (3.6 in) |
| 1889 | 157.0 mm (6.2 in) |
| 1890 | 84.9 mm (3.3 in) |
| 1891 | 136.1 mm (5.4 in) |
| 1892 | 87.2 mm (3.4 in) |
| 1893 | 65.1 mm (2.6 in) |
| 1894 | 85.2 mm (3.4 in) |
| 1895 | 120.9 mm (4.8 in) |
| 1896 | 113.5 mm (4.5 in) |
| 1897 | 77.7 mm (3.1 in) |
| 1898 | 78.0 mm (3.1 in) |
| 1899 | 79.5 mm (3.1 in) |
| 1900 | 91.7 mm (3.6 in) |
| 1901 | 107.7 mm (4.2 in) |
| 1902 | 135.7 mm (5.3 in) |
| 1903 | 112.2 mm (4.4 in) |
| 1904 | 130.6 mm (5.1 in) |
| 1905 | 117.8 mm (4.6 in) |
| 1906 | 109.7 mm (4.3 in) |
| 1907 | 100.1 mm (3.9 in) |
| 1908 | 75.2 mm (3.0 in) |
| 1909 | 80.2 mm (3.2 in) |
| 1910 | 140.5 mm (5.5 in) |
| 1911 | 116.8 mm (4.6 in) |
| 1912 | 173.5 mm (6.8 in) |
| 1913 | 90.5 mm (3.6 in) |
| 1914 | 99.0 mm (3.9 in) |
| 1915 | 105.2 mm (4.1 in) |
| 1916 | 67.1 mm (2.6 in) |
| 1917 | 109.8 mm (4.3 in) |
| 1918 | 98.1 mm (3.9 in) |
| 1919 | 112.3 mm (4.4 in) |
| 1920 | 81.3 mm (3.2 in) |
| 1921 | 74.6 mm (2.9 in) |
| 1922 | 139.0 mm (5.5 in) |
| 1923 | 54.8 mm (2.2 in) |
| 1924 | 85.8 mm (3.4 in) |
| 1925 | 63.5 mm (2.5 in) |
| 1926 | 107.9 mm (4.2 in) |
| 1927 | 84.6 mm (3.3 in) |
| 1928 | 110.5 mm (4.4 in) |
| 1929 | 134.1 mm (5.3 in) |
| 1930 | 58.4 mm (2.3 in) |
| 1931 | 98.8 mm (3.9 in) |
| 1932 | 91.6 mm (3.6 in) |
| 1933 | 283.6 mm (11.2 in) |
| 1934 | 118.9 mm (4.7 in) |
| 1935 | 162.0 mm (6.4 in) |
| 1936 | 85.8 mm (3.4 in) |
| 1937 | 129.6 mm (5.1 in) |
| 1938 | 70.6 mm (2.8 in) |
| 1939 | 81.1 mm (3.2 in) |
| 1940 | 89.4 mm (3.5 in) |
| 1941 | 92.7 mm (3.6 in) |
| 1942 | 151.8 mm (6.0 in) |
| 1943 | 131.4 mm (5.2 in) |
| 1944 | 112.0 mm (4.4 in) |
| 1945 | 132.9 mm (5.2 in) |
| 1946 | 115.3 mm (4.5 in) |
| 1947 | 98.0 mm (3.9 in) |
| 1948 | 81.8 mm (3.2 in) |
| 1949 | 76.9 mm (3.0 in) |
| 1950 | 140.2 mm (5.5 in) |
| 1951 | 90.0 mm (3.5 in) |
| 1952 | 149.3 mm (5.9 in) |
| 1953 | 120.4 mm (4.7 in) |
| 1954 | 55.9 mm (2.2 in) |
| 1955 | 234.0 mm (9.2 in) |
| 1956 | 108.7 mm (4.3 in) |
| 1957 | 148.1 mm (5.8 in) |
| 1958 | 148.8 mm (5.9 in) |
| 1959 | 61.0 mm (2.4 in) |
| 1960 | 143.2 mm (5.6 in) |
| 1961 | 94.2 mm (3.7 in) |
| 1962 | 62.2 mm (2.4 in) |
| 1963 | 82.9 mm (3.3 in) |
| 1964 | 86.1 mm (3.4 in) |
| 1965 | 76.7 mm (3.0 in) |
| 1966 | 101.4 mm (4.0 in) |
| 1967 | 125.1 mm (4.9 in) |
| 1968 | 112.2 mm (4.4 in) |
| 1969 | 86.7 mm (3.4 in) |
| 1970 | 62.5 mm (2.5 in) |
| 1971 | 216.7 mm (8.5 in) |
| 1972 | 170.5 mm (6.7 in) |
| 1973 | 105.4 mm (4.1 in) |
| 1974 | 102.6 mm (4.0 in) |
| 1975 | 257.1 mm (10.1 in) |
| 1976 | 163.1 mm (6.4 in) |
| 1977 | 130.3 mm (5.1 in) |
| 1978 | 98.0 mm (3.9 in) |
| 1979 | 119.8 mm (4.7 in) |
| 1980 | 68.7 mm (2.7 in) |
| 1981 | 68.4 mm (2.7 in) |
| 1982 | 67.1 mm (2.6 in) |
| 1983 | 119.2 mm (4.7 in) |
| 1984 | 93.2 mm (3.7 in) |
| 1985 | 150.3 mm (5.9 in) |
| 1986 | 130.5 mm (5.1 in) |
| 1987 | 90.7 mm (3.6 in) |
| 1988 | 57.2 mm (2.3 in) |
| 1989 | 121.0 mm (4.8 in) |
| 1990 | 108.7 mm (4.3 in) |
| 1991 | 62.2 mm (2.4 in) |
| 1992 | 71.9 mm (2.8 in) |
| 1993 | 96.4 mm (3.8 in) |
| 1994 | 87.1 mm (3.4 in) |
| 1995 | 53.0 mm (2.1 in) |
| 1996 | 0.0 mm (0.00 in) |
| 1997 | n/a |
| 1998 | n/a |
| 1999 | n/a |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1871 | 15 days |
| 1872 | 14 days |
| 1873 | 12 days |
| 1874 | 29 days |
| 1875 | 18 days |
| 1876 | 20 days |
| 1877 | 23 days |
| 1878 | 16 days |
| 1879 | 26 days |
| 1880 | 21 days |
| 1881 | 17 days |
| 1882 | 14 days |
| 1883 | 12 days |
| 1884 | 29 days |
| 1885 | 16 days |
| 1886 | 22 days |
| 1887 | 15 days |
| 1888 | 13 days |
| 1889 | 13 days |
| 1890 | 13 days |
| 1891 | 22 days |
| 1892 | 26 days |
| 1893 | 16 days |
| 1894 | 17 days |
| 1895 | 17 days |
| 1896 | 18 days |
| 1897 | 14 days |
| 1898 | 14 days |
| 1899 | 10 days |
| 1900 | 18 days |
| 1901 | 28 days |
| 1902 | 20 days |
| 1903 | 19 days |
| 1904 | 19 days |
| 1905 | 21 days |
| 1906 | 21 days |
| 1907 | 18 days |
| 1908 | 21 days |
| 1909 | 18 days |
| 1910 | 23 days |
| 1911 | 13 days |
| 1912 | 26 days |
| 1913 | 23 days |
| 1914 | 29 days |
| 1915 | 23 days |
| 1916 | 13 days |
| 1917 | 22 days |
| 1918 | 16 days |
| 1919 | 12 days |
| 1920 | 27 days |
| 1921 | 15 days |
| 1922 | 24 days |
| 1923 | 25 days |
| 1924 | 26 days |
| 1925 | 14 days |
| 1926 | 19 days |
| 1927 | 13 days |
| 1928 | 17 days |
| 1929 | 14 days |
| 1930 | 28 days |
| 1931 | 20 days |
| 1932 | 17 days |
| 1933 | 17 days |
| 1934 | 14 days |
| 1935 | 18 days |
| 1936 | 15 days |
| 1937 | 15 days |
| 1938 | 16 days |
| 1939 | 18 days |
| 1940 | 12 days |
| 1941 | 34 days |
| 1942 | 26 days |
| 1943 | 19 days |
| 1944 | 19 days |
| 1945 | 21 days |
| 1946 | 17 days |
| 1947 | 20 days |
| 1948 | 12 days |
| 1949 | 22 days |
| 1950 | 15 days |
| 1951 | 22 days |
| 1952 | 16 days |
| 1953 | 18 days |
| 1954 | 18 days |
| 1955 | 22 days |
| 1956 | 16 days |
| 1957 | 13 days |
| 1958 | 20 days |
| 1959 | 13 days |
| 1960 | 19 days |
| 1961 | 16 days |
| 1962 | 20 days |
| 1963 | 28 days |
| 1964 | 29 days |
| 1965 | 16 days |
| 1966 | 27 days |
| 1967 | 31 days |
| 1968 | 26 days |
| 1969 | 17 days |
| 1970 | 16 days |
| 1971 | 16 days |
| 1972 | 16 days |
| 1973 | 26 days |
| 1974 | 19 days |
| 1975 | 21 days |
| 1976 | 26 days |
| 1977 | 41 days |
| 1978 | 16 days |
| 1979 | 12 days |
| 1980 | 16 days |
| 1981 | 16 days |
| 1982 | 17 days |
| 1983 | 18 days |
| 1984 | 22 days |
| 1985 | 14 days |
| 1986 | 21 days |
| 1987 | 18 days |
| 1988 | 25 days |
| 1989 | 15 days |
| 1990 | 21 days |
| 1991 | 23 days |
| 1992 | 18 days |
| 1993 | 18 days |
| 1994 | 16 days |
| 1995 | 17 days |
| 1996 | 31 days |
| 1997 | n/a |
| 1998 | n/a |
| 1999 | n/a |
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
125 years with a frostAcross 125 years with a frost, the median last spring frost at Baltimore Customs House falls on 31 March and the median first autumn frost on 14 November, which leaves a median of 228 days between them.
In 1968 to 1998 the median growing season was 236 days. That is 15 days more than in 1873 to 1902.
Fitted over all years, the growing season changes by +1.7 days per decade at this station.
| Measure | Median, all years | Earliest period (1873 to 1902) | Recent period (1968 to 1998) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 31 March | 5 April | 27 March | 9 days earlier | -1.1 days per decade |
| First autumn frost | 14 November | 13 November | 17 November | 4 days later | +0.6 days per decade |
| Growing days | 228 days | 221 days | 236 days | 15 days more | +1.7 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
123 years, 1871 to 1994A day with at least 70.3 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 161.6 mm (6.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 70.3 mm (2.8 in) | |
| 5 years | 94.4 mm (3.7 in) | |
| 10 years | 110.5 mm (4.4 in) | |
| 25 years | 131.0 mm (5.2 in) | |
| 50 years | 146.3 mm (5.8 in) | |
| 100 years | 161.6 mm (6.4 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 123 years of values from 1871 to 1994.
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: 193.5 mm (7.6 in) in 1933; 155.2 mm (6.1 in) in 1971; 151.6 mm (6.0 in) in 1912.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Baltimore Customs House, at 1908 and 1935. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1908 ran 0.3 C (0.5 F) higher than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1935 ran 0.1 C (0.3 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1908 | +0.3 | +0.5 | likely | 5 |
| 1935 | -0.1 | -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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).