Cairo 3N Threshold Days by Year (USW00093809)

17 fixed thresholds counted per year at Cairo 3N (USW00093809): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cairo 3N Thresholds

Cairo 3N: days with a maximum temperature at or above 30 C (86 F) in 102 years, most in 1953 with 108.
Cairo 3N: days with a maximum temperature at or above 90 F (32.2 C) in 102 years, most in 1954 with 88.
Cairo 3N: days with a maximum temperature at or below 0 C (32 F) in 102 years, most in 1978 with 37.
Cairo 3N: days with a maximum temperature at or above 35 C (95 F) in 96 years, most in 1954 with 52.
17 fixed thresholds have at least one qualifying day at Cairo 3N.

Days at or above 30 C (86 F)

102 years with a qualifying day

Days per year at Cairo 3N with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 108 in 1953.

Days at or above 30 C (86 F) per year at Cairo 3N
Year	Days	Decade average
1908	69	69
1909	69	69
1910	64	72.1
1911	87	72.1
1912	60	72.1
1913	89	72.1
1914	89	72.1
1915	57	72.1
1916	74	72.1
1917	46	72.1
1918	73	72.1
1919	82	72.1
1920	56	70.6
1921	100	70.6
1922	80	70.6
1923	63	70.6
1924	53	70.6
1925	98	70.6
1926	81	70.6
1927	55	70.6
1928	57	70.6
1929	63	70.6
1930	81	83.3
1931	88	83.3
1932	73	83.3
1933	79	83.3
1934	85	83.3
1935	70	83.3
1936	103	83.3
1937	86	83.3
1938	79	83.3
1939	89	83.3
1940	68	83.2
1941	100	83.2
1942	85	83.2
1943	88	83.2
1944	100	83.2
1945	74	83.2
1946	72	83.2
1947	81	83.2
1949	81	83.2
1950	53	88.2
1951	78	88.2
1952	99	88.2
1953	108	88.2
1954	105	88.2
1955	95	88.2
1956	95	88.2
1957	73	88.2
1958	85	88.2
1959	91	88.2
1960	85	79.3
1961	77	79.3
1962	92	79.3
1963	91	79.3
1964	93	79.3
1965	85	79.3
1966	68	79.3
1967	47	79.3
1968	73	79.3
1969	82	79.3
1970	76	75.7
1971	77	75.7
1972	71	75.7
1973	74	75.7
1974	58	75.7
1975	81	75.7
1976	56	75.7
1977	103	75.7
1978	88	75.7
1979	73	75.7
1980	99	81.9
1981	70	81.9
1982	71	81.9
1983	95	81.9
1984	82	81.9
1985	77	81.9
1986	94	81.9
1989	67	81.9
1990	67	74
1993	77	74
1994	61	74
1995	78	74
1997	58	74
1998	98	74
1999	79	74
2000	82	75.1
2001	79	75.1
2002	87	75.1
2003	54	75.1
2004	54	75.1
2005	93	75.1
2006	76	75.1
2007	101	75.1
2008	71	75.1
2009	54	75.1
2011	80	91
2012	102	91
2020	59	78.3
2021	80	78.3
2025	83	78.3
2026	91	78.3

For each year, a bar from the first to the last day at Cairo 3N meeting 30 C (86 F).

First to last qualifying date each year at Cairo 3N
Year	First date	Last date
1908	1908-05-21	1908-09-26
1909	1909-06-05	1909-10-04
1910	1910-03-23	1910-10-02
1911	1911-03-11	1911-10-06
1912	1912-05-23	1912-10-09
1913	1913-05-14	1913-09-11
1914	1914-05-11	1914-09-21
1915	1915-04-25	1915-09-27
1916	1916-05-10	1916-10-07
1917	1917-05-31	1917-09-16
1918	1918-05-21	1918-10-06
1919	1919-05-29	1919-10-02
1920	1920-05-22	1920-09-26
1921	1921-05-19	1921-09-29
1922	1922-05-10	1922-10-05
1923	1923-06-03	1923-09-29
1924	1924-04-16	1924-10-19
1925	1925-04-21	1925-09-30
1926	1926-05-24	1926-10-03
1927	1927-06-10	1927-10-28
1928	1928-05-10	1928-10-13
1929	1929-03-24	1929-09-04
1930	1930-04-10	1930-09-23
1931	1931-05-16	1931-10-07
1932	1932-05-31	1932-09-18
1933	1933-05-19	1933-09-30
1934	1934-05-07	1934-09-25
1935	1935-05-12	1935-09-24
1936	1936-05-05	1936-09-28
1937	1937-04-17	1937-10-06
1938	1938-05-19	1938-10-17
1939	1939-05-22	1939-10-08
1940	1940-05-06	1940-10-13
1941	1941-04-12	1941-10-09
1942	1942-05-28	1942-09-19
1943	1943-05-02	1943-09-04
1944	1944-05-12	1944-10-06
1945	1945-05-14	1945-09-28
1946	1946-04-22	1946-10-07
1947	1947-05-15	1947-10-13
1949	1949-05-02	1949-09-17
1950	1950-05-17	1950-09-19
1951	1951-04-28	1951-10-05
1952	1952-04-29	1952-10-01
1953	1953-05-22	1953-10-22
1954	1954-04-26	1954-10-05
1955	1955-04-16	1955-10-06
1956	1956-05-06	1956-10-06
1957	1957-04-22	1957-09-21
1958	1958-05-12	1958-09-26
1959	1959-04-30	1959-10-04
1960	1960-04-24	1960-09-23
1961	1961-05-31	1961-09-24
1962	1962-05-08	1962-10-12
1963	1963-04-21	1963-10-20
1964	1964-05-17	1964-09-20
1965	1965-04-22	1965-09-20
1966	1966-05-06	1966-09-03
1967	1967-05-11	1967-10-05
1968	1968-05-02	1968-09-23
1969	1969-05-27	1969-10-04
1970	1970-05-13	1970-09-23
1971	1971-04-19	1971-10-03
1972	1972-05-19	1972-09-20
1973	1973-06-03	1973-09-25
1974	1974-05-18	1974-08-28
1975	1975-05-18	1975-10-13
1976	1976-04-23	1976-09-15
1977	1977-04-13	1977-10-01
1978	1978-05-20	1978-09-20
1979	1979-05-10	1979-10-21
1980	1980-04-22	1980-10-10
1981	1981-04-28	1981-10-05
1982	1982-05-04	1982-10-05
1983	1983-06-09	1983-09-29
1984	1984-05-19	1984-09-21
1985	1985-04-21	1985-09-22
1986	1986-04-25	1986-10-04
1989	1989-04-23	1989-10-14
1990	1990-04-25	1990-09-29
1993	1993-05-08	1993-09-14
1994	1994-05-24	1994-10-01
1995	1995-04-11	1995-10-17
1997	1997-05-17	1997-09-19
1998	1998-05-13	1998-10-05
1999	1999-05-17	1999-09-28
2000	2000-05-17	2000-10-05
2001	2001-04-09	2001-09-23
2002	2002-04-18	2002-10-04
2003	2003-04-14	2003-09-01
2004	2004-05-06	2004-09-15
2005	2005-05-11	2005-10-19
2006	2006-04-14	2006-10-05
2007	2007-05-01	2007-10-09
2008	2008-05-26	2008-09-25
2009	2009-04-27	2009-09-22
2011	2011-05-10	2011-10-17
2012	2012-04-02	2012-09-26
2020	2020-05-25	2020-09-12
2021	2021-05-23	2021-10-11
2025	2025-04-28	2025-10-18
2026	2026-03-22	2026-10-12

Every Fixed Threshold

Fixed thresholds at Cairo 3N
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	102	108	1953	91
35 C (95 F): Days	96	52	1954	16
40 C (104 F): Days	8	6	1930	3
90 F (32.2 C): Days	102	88	1954	42
100 F (37.8 C): Days	39	20	1954	1
0 C (32 F): Ice days (max	102	37	1978	12
0 C (32 F): Frost days (min	95	99	2002	39
-10 C (14 F): Days with min	91	28	1963	8
-20 C (-4 F): Days with min	13	4	1912	2
20 C (68 F): Tropical nights (min	95	108	1921	96
25 C (77 F): Days with min	80	26	1952	7
10 mm (0.39 in): Days with 10 mm or more rain	90	55	1927	8
25 mm (0.98 in): Days with 25 mm or more rain	90	26	1950	4
50 mm (1.97 in): Days with 50 mm or more rain	82	8	1957	3
100 mm (3.94 in): Days with 100 mm or more rain	28	2	1910	1
10 cm (3.9 in): Days with 10 cm or more snowfall	29	3	1918	1
25 cm (9.8 in): Days with 25 cm or more snowfall	3	1	1917	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1908.

Download the Data

Data for Cairo 3N 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Cairo 3N Threshold Days by Year (USW00093809)

Key Facts for Cairo 3N Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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