Port Washington Threshold Days by Year (USC00476764)

19 fixed thresholds counted per year at Port Washington (USC00476764): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Port Washington Thresholds

Port Washington: days with 10 mm (0.39 in) or more of precipitation in 95 years, most in 1985 with 40.
Port Washington: days with 25 mm (0.98 in) or more of precipitation in 95 years, most in 1907 with 13.
Port Washington: days with a maximum temperature at or above 30 C (86 F) in 77 years, most in 1921 with 35.
Port Washington: days with a maximum temperature at or below 0 C (32 F) in 77 years, most in 1978 with 82.
19 fixed thresholds have at least one qualifying day at Port Washington.

Days at or above 30 C (86 F)

77 years with a qualifying day

Days per year at Port Washington with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 35 in 1921.

Days at or above 30 C (86 F) per year at Port Washington
Year	Days	Decade average
1894	21	21.7
1895	25	21.7
1896	21	21.7
1897	20	21.7
1898	21	21.7
1899	22	21.7
1900	21	9.5
1902	12	9.5
1903	5	9.5
1906	7	9.5
1907	2	9.5
1908	10	9.5
1910	22	15.4
1911	23	15.4
1913	16	15.4
1914	13	15.4
1916	15	15.4
1917	6	15.4
1918	13	15.4
1920	21	19.4
1921	35	19.4
1922	19	19.4
1923	14	19.4
1924	8	19.4
1925	26	19.4
1926	17	19.4
1927	15	19.4
1960	9	11.9
1961	12	11.9
1962	5	11.9
1963	9	11.9
1964	19	11.9
1965	15	11.9
1966	14	11.9
1967	8	11.9
1968	16	11.9
1969	12	11.9
1970	19	14.1
1971	14	14.1
1972	12	14.1
1973	20	14.1
1974	11	14.1
1975	11	14.1
1976	27	14.1
1977	11	14.1
1978	9	14.1
1979	7	14.1
1980	13	20.1
1981	10	20.1
1983	28	20.1
1984	23	20.1
1985	14	20.1
1987	22	20.1
1988	35	20.1
1989	16	20.1
1990	13	12.7
1991	20	12.7
1992	7	12.7
1993	8	12.7
1994	12	12.7
1995	19	12.7
1996	8	12.7
1997	6	12.7
1998	19	12.7
1999	15	12.7
2000	7	11.2
2001	9	11.2
2002	20	11.2
2003	9	11.2
2004	4	11.2
2005	15	11.2
2006	15	11.2
2007	17	11.2
2008	10	11.2
2009	6	11.2
2010	14	15
2011	16	15

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

First to last qualifying date each year at Port Washington
Year	First date	Last date
1894	1894-06-12	1894-09-04
1895	1895-05-29	1895-09-20
1896	1896-04-16	1896-08-25
1897	1897-06-13	1897-10-15
1898	1898-06-24	1898-09-29
1899	1899-06-04	1899-09-16
1900	1900-05-12	1900-09-25
1902	1902-06-11	1902-08-26
1903	1903-07-01	1903-07-25
1906	1906-05-17	1906-09-10
1907	1907-06-17	1907-07-24
1908	1908-06-22	1908-09-21
1910	1910-06-15	1910-08-13
1911	1911-05-17	1911-08-17
1913	1913-06-13	1913-09-07
1914	1914-05-25	1914-08-17
1916	1916-07-02	1916-08-20
1917	1917-07-26	1917-08-19
1918	1918-06-11	1918-08-24
1920	1920-06-10	1920-09-25
1921	1921-05-21	1921-09-02
1922	1922-06-07	1922-10-05
1923	1923-06-20	1923-08-18
1924	1924-07-22	1924-08-27
1925	1925-05-22	1925-09-18
1926	1926-07-10	1926-08-29
1927	1927-06-08	1927-09-15
1960	1960-07-08	1960-09-08
1961	1961-06-12	1961-09-10
1962	1962-05-19	1962-08-28
1963	1963-05-08	1963-10-06
1964	1964-05-22	1964-09-03
1965	1965-06-20	1965-09-19
1966	1966-06-20	1966-09-01
1967	1967-06-15	1967-10-04
1968	1968-06-07	1968-08-23
1969	1969-05-28	1969-09-06
1970	1970-05-21	1970-08-30
1971	1971-06-06	1971-10-01
1972	1972-05-20	1972-08-30
1973	1973-06-08	1973-08-29
1974	1974-07-01	1974-08-26
1975	1975-06-13	1975-10-13
1976	1976-06-07	1976-09-11
1977	1977-05-13	1977-07-20
1978	1978-06-26	1978-09-07
1979	1979-06-15	1979-08-07
1980	1980-04-22	1980-08-08
1981	1981-06-05	1981-09-11
1983	1983-06-23	1983-09-10
1984	1984-06-08	1984-09-07
1985	1985-04-19	1985-09-19
1987	1987-05-30	1987-08-15
1988	1988-05-29	1988-08-17
1989	1989-06-07	1989-08-27
1990	1990-06-17	1990-09-04
1991	1991-04-06	1991-09-15
1992	1992-05-01	1992-08-25
1993	1993-07-19	1993-08-30
1994	1994-06-12	1994-09-15
1995	1995-06-18	1995-08-30
1996	1996-05-18	1996-08-07
1997	1997-07-14	1997-10-05
1998	1998-05-18	1998-09-27
1999	1999-05-29	1999-08-27
2000	2000-06-07	2000-09-07
2001	2001-07-11	2001-09-04
2002	2002-06-02	2002-09-10
2003	2003-07-04	2003-09-07
2004	2004-07-14	2004-08-03
2005	2005-06-06	2005-09-14
2006	2006-06-17	2006-08-03
2007	2007-05-15	2007-09-22
2008	2008-06-27	2008-08-24
2009	2009-06-21	2009-09-15
2010	2010-06-19	2010-09-24
2011	2011-06-01	2011-09-13

Every Fixed Threshold

Fixed thresholds at Port Washington
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	77	35	1921	16
35 C (95 F): Days	47	14	1988	1
40 C (104 F): Days	1	2	1995	2
90 F (32.2 C): Days	75	27	1988	7
100 F (37.8 C): Days	8	5	1988	2
0 C (32 F): Ice days (max	77	82	1978	55
0 C (32 F): Frost days (min	69	173	1926	132
-10 C (14 F): Days with min	69	72	1978	29
-20 C (-4 F): Days with min	63	25	1963	4
-30 C (-22 F): Days with min	8	4	1899	3
20 C (68 F): Tropical nights (min	64	20	1998	10
25 C (77 F): Days with min	9	2	2001	2
10 mm (0.39 in): Days with 10 mm or more rain	95	40	1985	31
25 mm (0.98 in): Days with 25 mm or more rain	95	13	1907	9
50 mm (1.97 in): Days with 50 mm or more rain	60	5	1907	1
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1907	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1996	1
10 cm (3.9 in): Days with 10 cm or more snowfall	63	9	2008	2
25 cm (9.8 in): Days with 25 cm or more snowfall	8	2	1999	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1894.

Download the Data

Data for Port Washington 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).

Port Washington Threshold Days by Year (USC00476764)

Key Facts for Port Washington Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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