Haisy Threshold Days by Year (GG000037281)

3 fixed thresholds counted per year at Haisy (GG000037281): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Haisy Thresholds

Haisy: days with 10 mm (0.39 in) or more of precipitation in 35 years, most in 1992 with 68.
Haisy: days with 25 mm (0.98 in) or more of precipitation in 35 years, most in 1992 with 32.
Haisy: days with 50 mm (1.97 in) or more of precipitation in 22 years, most in 1987 with 7.
3 fixed thresholds have at least one qualifying day at Haisy.

Days with 10 mm (0.39 in) or more of precipitation

35 years with a qualifying day

Days per year at Haisy with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 68 in 1992.

Days with 10 mm (0.39 in) or more of precipitation per year at Haisy
Year	Days	Decade average
1955	40	41.4
1956	48	41.4
1957	29	41.4
1958	53	41.4
1959	37	41.4
1960	40	38.4
1961	44	38.4
1962	37	38.4
1963	50	38.4
1964	36	38.4
1965	29	38.4
1967	42	38.4
1969	29	38.4
1970	50	42.3
1971	43	42.3
1972	31	42.3
1973	44	42.3
1974	27	42.3
1975	46	42.3
1976	50	42.3
1977	34	42.3
1978	50	42.3
1979	48	42.3
1980	42	45
1981	50	45
1982	29	45
1983	46	45
1984	37	45
1985	40	45
1986	37	45
1987	56	45
1988	55	45
1989	58	45
1990	34	51
1992	68	51

For each year, a bar from the first to the last day at Haisy meeting 10 mm (0.39 in).

First to last qualifying date each year at Haisy
Year	First date	Last date
1955	1955-01-16	1955-12-21
1956	1956-01-10	1956-12-09
1957	1957-01-13	1957-12-19
1958	1958-01-08	1958-12-31
1959	1959-01-15	1959-12-17
1960	1960-01-14	1960-12-29
1961	1961-01-17	1961-12-27
1962	1962-01-04	1962-12-20
1963	1963-01-02	1963-12-29
1964	1964-01-16	1964-12-30
1965	1965-02-09	1965-12-30
1967	1967-01-11	1967-12-22
1969	1969-01-11	1969-12-13
1970	1970-01-04	1970-12-10
1971	1971-01-31	1971-12-26
1972	1972-01-13	1972-11-27
1973	1973-01-12	1973-12-28
1974	1974-01-20	1974-12-05
1975	1975-01-02	1975-12-28
1976	1976-01-03	1976-12-04
1977	1977-02-12	1977-12-31
1978	1978-01-16	1978-12-31
1979	1979-01-02	1979-12-14
1980	1980-01-27	1980-12-28
1981	1981-01-08	1981-12-22
1982	1982-01-04	1982-12-31
1983	1983-01-01	1983-12-29
1984	1984-01-09	1984-11-29
1985	1985-01-11	1985-12-18
1986	1986-01-09	1986-12-31
1987	1987-01-01	1987-12-30
1988	1988-01-28	1988-12-29
1989	1989-01-01	1989-12-29
1990	1990-02-23	1990-12-17
1992	1992-01-06	1992-12-31

Every Fixed Threshold

Fixed thresholds at Haisy
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	35	68	1992	68
25 mm (0.98 in): Days with 25 mm or more rain	35	32	1992	32
50 mm (1.97 in): Days with 50 mm or more rain	22	7	1987	4

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1955.

Download the Data

Data for Haisy 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).

Haisy Threshold Days by Year (GG000037281)

Key Facts for Haisy Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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