Greenport Pwr House Threshold Days by Year (USC00303464)

17 fixed thresholds counted per year at Greenport Pwr House (USC00303464): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Greenport Pwr House Thresholds

Greenport Pwr House: days with 10 mm (0.39 in) or more of precipitation in 29 years, most in 1996 with 49.
Greenport Pwr House: days with 25 mm (0.98 in) or more of precipitation in 29 years, most in 1983 with 21.
Greenport Pwr House: nights with a minimum temperature at or below 0 C (32 F) in 28 years, most in 1966 with 127.
Greenport Pwr House: nights with a minimum temperature at or below -10 C (14 F) in 28 years, most in 1963 with 21.
17 fixed thresholds have at least one qualifying day at Greenport Pwr House.

Days at or above 30 C (86 F)

27 years with a qualifying day

Days per year at Greenport Pwr House with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 25 in 1960.

Days at or above 30 C (86 F) per year at Greenport Pwr House
Year	Days	Decade average
1960	25	11
1961	17	11
1962	8	11
1963	5	11
1966	10	11
1967	1	11
1973	18	11.5
1975	8	11.5
1976	10	11.5
1977	15	11.5
1978	5	11.5
1979	13	11.5
1980	20	11.4
1981	11	11.4
1982	7	11.4
1983	20	11.4
1984	10	11.4
1985	6	11.4
1986	10	11.4
1987	11	11.4
1988	12	11.4
1989	7	11.4
1990	3	8
1991	16	8
1992	5	8
1993	14	8
1996	2	8

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

First to last qualifying date each year at Greenport Pwr House
Year	First date	Last date
1960	1960-06-28	1960-09-09
1961	1961-06-13	1961-09-14
1962	1962-06-01	1962-08-25
1963	1963-07-04	1963-07-29
1966	1966-06-26	1966-09-01
1967	1967-06-17	1967-06-17
1973	1973-06-12	1973-09-05
1975	1975-05-25	1975-08-04
1976	1976-04-18	1976-08-24
1977	1977-04-13	1977-08-13
1978	1978-07-23	1978-08-18
1979	1979-05-11	1979-08-06
1980	1980-06-25	1980-09-23
1981	1981-07-07	1981-09-15
1982	1982-07-11	1982-07-27
1983	1983-06-14	1983-09-21
1984	1984-06-08	1984-08-16
1985	1985-07-21	1985-09-06
1986	1986-05-31	1986-08-28
1987	1987-05-30	1987-08-19
1988	1988-06-15	1988-08-21
1989	1989-06-28	1989-08-06
1990	1990-07-06	1990-09-15
1991	1991-06-29	1991-09-18
1992	1992-05-23	1992-08-12
1993	1993-06-10	1993-09-04
1996	1996-05-21	1996-05-22

Every Fixed Threshold

Fixed thresholds at Greenport Pwr House
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	27	25	1960	2
35 C (95 F): Days	6	2	1960	1
90 F (32.2 C): Days	21	12	1960	1
0 C (32 F): Ice days (max	27	41	1978	29
0 C (32 F): Frost days (min	28	127	1966	91
-10 C (14 F): Days with min	28	21	1963	14
-20 C (-4 F): Days with min	2	2	1980	1
20 C (68 F): Tropical nights (min	28	38	1988	13
25 C (77 F): Days with min	6	4	1980	1
10 mm (0.39 in): Days with 10 mm or more rain	29	49	1996	49
25 mm (0.98 in): Days with 25 mm or more rain	29	21	1983	13
50 mm (1.97 in): Days with 50 mm or more rain	26	8	1983	4
100 mm (3.94 in): Days with 100 mm or more rain	7	1	1973	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1982	1
10 cm (3.9 in): Days with 10 cm or more snowfall	8	5	1976	5
25 cm (9.8 in): Days with 25 cm or more snowfall	2	2	1996	2
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1996	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1960.

Download the Data

Data for Greenport Pwr House 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).

Greenport Pwr House Threshold Days by Year (USC00303464)

Key Facts for Greenport Pwr House Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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