Suffern Threshold Days by Year (USC00308322)

18 fixed thresholds counted per year at Suffern (USC00308322): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Suffern Thresholds

Suffern: nights with a minimum temperature at or below 0 C (32 F) in 33 years, most in 1967 with 172.
Suffern: nights with a minimum temperature at or below -10 C (14 F) in 33 years, most in 1963 with 63.
Suffern: days with 10 mm (0.39 in) or more of precipitation in 33 years, most in 1972 with 54.
Suffern: days with 25 mm (0.98 in) or more of precipitation in 33 years, most in 1972 with 22.
18 fixed thresholds have at least one qualifying day at Suffern.

Days at or above 30 C (86 F)

32 years with a qualifying day

Days per year at Suffern with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 59 in 1959.

Days at or above 30 C (86 F) per year at Suffern
Year	Days	Decade average
1957	29	38.7
1958	28	38.7
1959	59	38.7
1960	17	33.5
1961	42	33.5
1962	25	33.5
1963	27	33.5
1964	37	33.5
1965	43	33.5
1966	48	33.5
1967	23	33.5
1968	38	33.5
1969	35	33.5
1970	47	36.7
1971	31	36.7
1972	29	36.7
1973	44	36.7
1975	32	36.7
1979	37	36.7
1980	38	35.8
1981	30	35.8
1987	37	35.8
1988	49	35.8
1989	25	35.8
1990	27	29.5
1991	50	29.5
1992	17	29.5
1993	38	29.5
1994	24	29.5
1995	35	29.5
1996	17	29.5
1997	28	29.5

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

First to last qualifying date each year at Suffern
Year	First date	Last date
1957	1957-04-29	1957-09-14
1958	1958-06-02	1958-09-27
1959	1959-05-21	1959-10-07
1960	1960-06-06	1960-09-02
1961	1961-06-03	1961-09-25
1962	1962-04-28	1962-09-02
1963	1963-05-10	1963-10-08
1964	1964-05-09	1964-09-24
1965	1965-05-05	1965-09-23
1966	1966-06-05	1966-09-03
1967	1967-06-03	1967-08-20
1968	1968-06-07	1968-09-25
1969	1969-05-30	1969-09-15
1970	1970-05-10	1970-09-27
1971	1971-06-08	1971-09-10
1972	1972-04-20	1972-09-18
1973	1973-04-23	1973-09-06
1975	1975-05-21	1975-08-23
1979	1979-05-10	1979-08-31
1980	1980-05-06	1980-09-23
1981	1981-05-25	1981-09-15
1987	1987-05-11	1987-08-20
1988	1988-05-30	1988-08-29
1989	1989-05-21	1989-09-12
1990	1990-04-28	1990-08-29
1991	1991-04-08	1991-09-18
1992	1992-05-03	1992-08-29
1993	1993-05-12	1993-09-16
1994	1994-04-28	1994-08-14
1995	1995-06-19	1995-09-08
1996	1996-05-20	1996-09-04
1997	1997-06-11	1997-08-18

Every Fixed Threshold

Fixed thresholds at Suffern
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	32	59	1959	28
35 C (95 F): Days	17	10	1988	1
90 F (32.2 C): Days	32	31	1988	8
100 F (37.8 C): Days	1	1	1966	1
0 C (32 F): Ice days (max	32	43	1989	14
0 C (32 F): Frost days (min	33	172	1967	129
-10 C (14 F): Days with min	33	63	1963	12
-20 C (-4 F): Days with min	15	21	1994	21
20 C (68 F): Tropical nights (min	27	29	1988	4
25 C (77 F): Days with min	1	1	1988	1
10 mm (0.39 in): Days with 10 mm or more rain	33	54	1972	39
25 mm (0.98 in): Days with 25 mm or more rain	33	22	1972	5
50 mm (1.97 in): Days with 50 mm or more rain	30	7	1990	4
100 mm (3.94 in): Days with 100 mm or more rain	5	2	1971	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1971	1
10 cm (3.9 in): Days with 10 cm or more snowfall	17	5	1994	5
25 cm (9.8 in): Days with 25 cm or more snowfall	4	2	1994	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 1957.

Download the Data

Data for Suffern 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).

Suffern Threshold Days by Year (USC00308322)

Key Facts for Suffern Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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