Aleppo Threshold Days by Year

3 fixed thresholds counted per year at Aleppo (ASN00010052): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Aleppo Thresholds

Aleppo: days with 10 mm (0.39 in) or more of precipitation in 109 years, most in 1963 with 23.
Aleppo: days with 25 mm (0.98 in) or more of precipitation in 80 years, most in 2017 with 5.
Aleppo: days with 50 mm (1.97 in) or more of precipitation in 16 years, most in 1915 with 1.
3 fixed thresholds have at least one qualifying day at Aleppo.

Days with 10 mm (0.39 in) or more of precipitation

109 years with a qualifying day

Days per year at Aleppo with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 23 in 1963.

Days with 10 mm (0.39 in) or more of precipitation per year at Aleppo
Year	Days	Decade average
1910	16	10.1
1912	6	10.1
1913	10	10.1
1914	4	10.1
1915	12	10.1
1916	8	10.1
1917	14	10.1
1918	13	10.1
1919	8	10.1
1920	8	8.1
1921	10	8.1
1922	10	8.1
1923	10	8.1
1924	2	8.1
1925	7	8.1
1927	8	8.1
1928	6	8.1
1929	12	8.1
1930	9	9.3
1931	9	9.3
1932	16	9.3
1933	9	9.3
1934	8	9.3
1935	4	9.3
1936	9	9.3
1937	5	9.3
1938	9	9.3
1939	15	9.3
1940	4	7.4
1941	9	7.4
1942	10	7.4
1943	6	7.4
1944	5	7.4
1945	8	7.4
1946	9	7.4
1947	9	7.4
1948	9	7.4
1949	5	7.4
1950	10	8.7
1951	11	8.7
1952	5	8.7
1953	9	8.7
1954	8	8.7
1955	8	8.7
1956	18	8.7
1957	5	8.7
1958	6	8.7
1959	7	8.7
1960	8	11.2
1961	6	11.2
1962	11	11.2
1963	23	11.2
1964	12	11.2
1965	14	11.2
1966	10	11.2
1967	11	11.2
1968	12	11.2
1969	5	11.2
1970	9	8.3
1971	10	8.3
1972	2	8.3
1973	8	8.3
1974	11	8.3
1975	7	8.3
1976	9	8.3
1977	7	8.3
1978	14	8.3
1979	6	8.3
1980	2	8.8
1981	13	8.8
1982	10	8.8
1983	13	8.8
1984	10	8.8
1985	7	8.8
1986	5	8.8
1987	10	8.8
1988	7	8.8
1989	11	8.8
1990	8	9.6
1991	9	9.6
1992	13	9.6
1993	6	9.6
1994	4	9.6
1995	13	9.6
1996	8	9.6
1997	9	9.6
1998	11	9.6
1999	15	9.6
2000	7	8
2001	7	8
2002	4	8
2003	11	8
2004	4	8
2005	7	8
2006	10	8
2007	7	8
2008	11	8
2009	12	8
2010	4	9.9
2011	12	9.9
2012	8	9.9
2013	7	9.9
2014	11	9.9
2015	9	9.9
2016	16	9.9
2017	16	9.9
2018	10	9.9
2019	6	9.9
2020	9	9

For each year, a bar from the first to the last day at Aleppo meeting 10 mm (0.39 in).

First to last qualifying date each year at Aleppo
Year	First date	Last date
1910	1910-02-09	1910-09-02
1912	1912-05-08	1912-12-28
1913	1913-06-10	1913-12-20
1914	1914-06-04	1914-10-27
1915	1915-01-04	1915-10-10
1916	1916-01-21	1916-10-05
1917	1917-03-19	1917-10-01
1918	1918-02-04	1918-11-26
1919	1919-04-16	1919-11-04
1920	1920-03-13	1920-11-24
1921	1921-02-22	1921-10-13
1922	1922-02-28	1922-12-15
1923	1923-04-23	1923-12-16
1924	1924-05-14	1924-08-08
1925	1925-01-24	1925-09-10
1927	1927-03-13	1927-11-19
1928	1928-05-30	1928-08-05
1929	1929-02-15	1929-11-06
1930	1930-04-15	1930-12-12
1931	1931-05-04	1931-09-05
1932	1932-04-13	1932-10-20
1933	1933-01-17	1933-10-03
1934	1934-03-09	1934-08-23
1935	1935-01-06	1935-07-18
1936	1936-05-06	1936-12-24
1937	1937-04-19	1937-08-23
1938	1938-03-15	1938-10-28
1939	1939-02-13	1939-11-12
1940	1940-06-13	1940-12-03
1941	1941-02-25	1941-08-28
1942	1942-01-17	1942-12-21
1943	1943-01-31	1943-07-30
1944	1944-04-04	1944-08-11
1945	1945-06-11	1945-08-08
1946	1946-04-20	1946-08-11
1947	1947-04-27	1947-11-19
1948	1948-03-19	1948-11-15
1949	1949-06-04	1949-11-05
1950	1950-05-08	1950-10-10
1951	1951-01-18	1951-12-01
1952	1952-07-10	1952-12-17
1953	1953-03-25	1953-08-07
1954	1954-05-23	1954-09-28
1955	1955-02-05	1955-08-23
1956	1956-04-25	1956-12-21
1957	1957-04-04	1957-09-19
1958	1958-04-29	1958-09-22
1959	1959-06-18	1959-12-31
1960	1960-05-19	1960-09-12
1961	1961-01-19	1961-12-16
1962	1962-05-13	1962-12-19
1963	1963-02-08	1963-08-26
1964	1964-04-02	1964-11-14
1965	1965-03-17	1965-12-10
1966	1966-04-06	1966-10-23
1967	1967-01-23	1967-12-11
1968	1968-01-21	1968-07-27
1969	1969-03-28	1969-07-26
1970	1970-02-15	1970-12-02
1971	1971-03-12	1971-11-09
1972	1972-05-30	1972-06-21
1973	1973-06-05	1973-09-10
1974	1974-04-03	1974-08-11
1975	1975-03-31	1975-10-14
1976	1976-01-06	1976-09-03
1977	1977-04-27	1977-12-28
1978	1978-01-02	1978-12-19
1979	1979-03-14	1979-08-19
1980	1980-04-21	1980-07-10
1981	1981-02-17	1981-12-08
1982	1982-01-21	1982-09-21
1983	1983-04-01	1983-12-31
1984	1984-03-04	1984-07-04
1985	1985-02-01	1985-09-18
1986	1986-02-21	1986-09-29
1987	1987-04-26	1987-12-07
1988	1988-03-24	1988-08-12
1989	1989-02-25	1989-10-18
1990	1990-01-28	1990-10-06
1991	1991-05-04	1991-12-25
1992	1992-02-09	1992-09-20
1993	1993-05-01	1993-08-06
1994	1994-05-23	1994-09-11
1995	1995-01-13	1995-10-18
1996	1996-04-20	1996-11-06
1997	1997-02-20	1997-11-12
1998	1998-04-16	1998-09-22
1999	1999-03-19	1999-10-14
2000	2000-01-16	2000-09-06
2001	2001-01-19	2001-11-19
2002	2002-01-15	2002-08-16
2003	2003-02-10	2003-11-17
2004	2004-05-22	2004-07-08
2005	2005-03-28	2005-08-18
2006	2006-01-13	2006-12-20
2007	2007-01-03	2007-08-11
2008	2008-02-08	2008-11-26
2009	2009-02-01	2009-11-13
2010	2010-03-23	2010-12-20
2011	2011-01-06	2011-12-07
2012	2012-02-03	2012-12-14
2013	2013-01-14	2013-10-20
2014	2014-04-27	2014-11-28
2015	2015-03-02	2015-11-07
2016	2016-01-10	2016-12-13
2017	2017-01-29	2017-10-14
2018	2018-01-16	2018-12-04
2019	2019-04-14	2019-08-15
2020	2020-02-22	2020-11-14

Every Fixed Threshold

Fixed thresholds at Aleppo
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	109	23	1963	9
25 mm (0.98 in): Days with 25 mm or more rain	80	5	2017	1
50 mm (1.97 in): Days with 50 mm or more rain	16	1	1915	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1910.

Download the Data

Data for Aleppo 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Aleppo Threshold Days by Year

Key Facts for Aleppo Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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