Dobbs Ferry-Ardsley Threshold Days by Year (USC00302129)

18 fixed thresholds counted per year at Dobbs Ferry-Ardsley (USC00302129): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Dobbs Ferry-Ardsley Thresholds

Dobbs Ferry-Ardsley: days with a maximum temperature at or above 30 C (86 F) in 63 years, most in 1983 with 68.
Dobbs Ferry-Ardsley: days with a maximum temperature at or above 90 F (32.2 C) in 63 years, most in 1983 with 39.
Dobbs Ferry-Ardsley: days with a maximum temperature at or below 0 C (32 F) in 63 years, most in 1978 with 39.
Dobbs Ferry-Ardsley: nights with a minimum temperature at or below 0 C (32 F) in 63 years, most in 1947 with 125.
18 fixed thresholds have at least one qualifying day at Dobbs Ferry-Ardsley.

Days at or above 30 C (86 F)

63 years with a qualifying day

Days per year at Dobbs Ferry-Ardsley with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 68 in 1983.

Days at or above 30 C (86 F) per year at Dobbs Ferry-Ardsley
Year	Days	Decade average
1946	20	30.5
1947	30	30.5
1948	26	30.5
1949	46	30.5
1950	24	35
1951	21	35
1952	35	35
1953	44	35
1954	40	35
1955	47	35
1956	30	35
1957	41	35
1958	26	35
1959	42	35
1960	20	30.5
1961	32	30.5
1962	28	30.5
1963	23	30.5
1964	36	30.5
1965	42	30.5
1966	43	30.5
1967	16	30.5
1968	34	30.5
1969	31	30.5
1970	38	39.7
1971	30	39.7
1972	24	39.7
1973	41	39.7
1974	42	39.7
1975	47	39.7
1976	43	39.7
1977	55	39.7
1978	39	39.7
1979	38	39.7
1980	62	43.5
1981	53	43.5
1982	31	43.5
1983	68	43.5
1984	50	43.5
1985	26	43.5
1986	27	43.5
1987	39	43.5
1988	50	43.5
1989	29	43.5
1990	27	39
1991	58	39
1992	16	39
1993	48	39
1994	34	39
1995	46	39
1996	22	39
1998	49	39
1999	51	39
2000	26	37.4
2001	30	37.4
2002	48	37.4
2004	31	37.4
2005	41	37.4
2006	45	37.4
2007	48	37.4
2008	37	37.4
2009	31	37.4
2010	66	66

For each year, a bar from the first to the last day at Dobbs Ferry-Ardsley meeting 30 C (86 F).

First to last qualifying date each year at Dobbs Ferry-Ardsley
Year	First date	Last date
1946	1946-05-31	1946-09-20
1947	1947-05-13	1947-09-15
1948	1948-05-10	1948-09-18
1949	1949-05-05	1949-10-11
1950	1950-06-06	1950-09-01
1951	1951-05-15	1951-08-31
1952	1952-06-15	1952-09-13
1953	1953-05-11	1953-09-05
1954	1954-05-31	1954-09-06
1955	1955-05-05	1955-08-22
1956	1956-05-13	1956-08-29
1957	1957-05-09	1957-09-13
1958	1958-06-12	1958-09-26
1959	1959-05-12	1959-09-24
1960	1960-06-26	1960-09-01
1961	1961-06-06	1961-09-12
1962	1962-04-27	1962-08-30
1963	1963-06-09	1963-08-09
1964	1964-05-09	1964-09-11
1965	1965-05-04	1965-09-23
1966	1966-06-04	1966-09-02
1967	1967-06-02	1967-08-20
1968	1968-06-06	1968-09-22
1969	1969-05-29	1969-09-17
1970	1970-05-09	1970-09-26
1971	1971-05-18	1971-09-09
1972	1972-04-19	1972-09-18
1973	1973-06-08	1973-09-05
1974	1974-04-29	1974-09-13
1975	1975-05-20	1975-08-27
1976	1976-04-17	1976-09-14
1977	1977-04-12	1977-09-03
1978	1978-05-20	1978-09-07
1979	1979-05-09	1979-09-04
1980	1980-05-05	1980-09-22
1981	1981-05-24	1981-09-14
1982	1982-05-20	1982-09-15
1983	1983-04-28	1983-09-20
1984	1984-05-26	1984-09-25
1985	1985-04-22	1985-09-20
1986	1986-05-06	1986-09-30
1987	1987-05-10	1987-08-19
1988	1988-05-29	1988-08-17
1989	1989-06-01	1989-09-11
1990	1990-04-27	1990-09-07
1991	1991-04-07	1991-09-17
1992	1992-05-21	1992-09-09
1993	1993-05-11	1993-09-15
1994	1994-05-23	1994-09-17
1995	1995-05-24	1995-09-14
1996	1996-05-19	1996-09-09
1998	1998-03-31	1998-09-27
1999	1999-05-29	1999-08-29
2000	2000-05-05	2000-08-09
2001	2001-04-22	2001-09-13
2002	2002-04-16	2002-09-10
2004	2004-04-19	2004-09-04
2005	2005-04-20	2005-09-23
2006	2006-04-19	2006-08-23
2007	2007-05-16	2007-10-08
2008	2008-06-07	2008-09-14
2009	2009-04-25	2009-08-26
2010	2010-05-02	2010-09-22

Every Fixed Threshold

Fixed thresholds at Dobbs Ferry-Ardsley
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	63	68	1983	66
35 C (95 F): Days	45	13	1999	5
40 C (104 F): Days	1	1	1980	1
90 F (32.2 C): Days	63	39	1983	34
100 F (37.8 C): Days	14	4	1955	1
0 C (32 F): Ice days (max	63	39	1978	13
0 C (32 F): Frost days (min	63	125	1947	89
-10 C (14 F): Days with min	63	33	1948	6
-20 C (-4 F): Days with min	8	2	1982	2
20 C (68 F): Tropical nights (min	63	45	1973	35
25 C (77 F): Days with min	18	6	2002	1
10 mm (0.39 in): Days with 10 mm or more rain	63	55	1983	32
25 mm (0.98 in): Days with 25 mm or more rain	63	27	1983	20
50 mm (1.97 in): Days with 50 mm or more rain	59	8	2005	4
100 mm (3.94 in): Days with 100 mm or more rain	12	2	1955	1
10 cm (3.9 in): Days with 10 cm or more snowfall	58	7	1996	5
25 cm (9.8 in): Days with 25 cm or more snowfall	18	2	1960	1
50 cm (19.7 in): Days with 50 cm or more snowfall	2	1	1960	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1946.

Download the Data

Data for Dobbs Ferry-Ardsley 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).

Dobbs Ferry-Ardsley Threshold Days by Year (USC00302129)

Key Facts for Dobbs Ferry-Ardsley Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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