The Head Threshold Days by Year (ASN00041046)

5 fixed thresholds counted per year at The Head (ASN00041046): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for The Head Thresholds

The Head: days with 10 mm (0.39 in) or more of precipitation in 55 years, most in 1988 with 51.
The Head: days with 25 mm (0.98 in) or more of precipitation in 55 years, most in 1975 with 21.
The Head: days with 50 mm (1.97 in) or more of precipitation in 48 years, most in 1974 with 7.
The Head: days with 100 mm (3.94 in) or more of precipitation in 21 years, most in 1974 with 3.
5 fixed thresholds have at least one qualifying day at The Head.

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

55 years with a qualifying day

Days per year at The Head with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 51 in 1988.

Days with 10 mm (0.39 in) or more of precipitation per year at The Head
Year	Days	Decade average
1959	44	44
1960	29	33.5
1961	35	33.5
1962	40	33.5
1963	32	33.5
1964	37	33.5
1965	30	33.5
1966	23	33.5
1967	45	33.5
1968	34	33.5
1969	30	33.5
1970	31	37
1971	37	37
1972	40	37
1973	39	37
1974	41	37
1975	43	37
1976	37	37
1977	26	37
1978	48	37
1979	28	37
1980	21	38.9
1981	47	38.9
1982	34	38.9
1983	46	38.9
1984	42	38.9
1985	35	38.9
1986	28	38.9
1987	38	38.9
1988	51	38.9
1989	47	38.9
1990	33	34
1991	18	34
1992	32	34
1993	30	34
1994	35	34
1995	36	34
1996	38	34
1997	34	34
1998	38	34
1999	46	34
2000	30	30.2
2001	33	30.2
2002	23	30.2
2003	35	30.2
2004	30	30.2
2005	23	30.2
2006	27	30.2
2007	31	30.2
2008	33	30.2
2009	37	30.2
2010	50	43
2011	49	43
2012	33	43
2013	40	43

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

First to last qualifying date each year at The Head
Year	First date	Last date
1959	1959-01-02	1959-12-25
1960	1960-01-20	1960-12-16
1961	1961-01-04	1961-12-20
1962	1962-01-02	1962-12-31
1963	1963-01-01	1963-12-31
1964	1964-01-15	1964-12-29
1965	1965-01-27	1965-12-15
1966	1966-02-04	1966-12-08
1967	1967-01-02	1967-12-29
1968	1968-01-06	1968-12-11
1969	1969-01-01	1969-12-24
1970	1970-01-02	1970-12-30
1971	1971-01-14	1971-12-28
1972	1972-01-01	1972-12-27
1973	1973-01-01	1973-12-21
1974	1974-01-01	1974-12-30
1975	1975-01-09	1975-12-24
1976	1976-01-10	1976-12-24
1977	1977-01-17	1977-12-12
1978	1978-01-03	1978-12-30
1979	1979-01-16	1979-12-01
1980	1980-01-27	1980-12-31
1981	1981-01-01	1981-12-30
1982	1982-01-09	1982-12-30
1983	1983-01-01	1983-12-28
1984	1984-01-05	1984-12-30
1985	1985-01-08	1985-12-27
1986	1986-01-10	1986-12-27
1987	1987-01-03	1987-12-31
1988	1988-01-05	1988-12-20
1989	1989-01-06	1989-12-25
1990	1990-01-16	1990-12-23
1991	1991-01-01	1991-12-31
1992	1992-01-09	1992-12-27
1993	1993-01-05	1993-12-09
1994	1994-01-09	1994-12-26
1995	1995-01-04	1995-12-24
1996	1996-01-03	1996-12-19
1997	1997-01-27	1997-12-27
1998	1998-01-11	1998-12-21
1999	1999-01-02	1999-12-28
2000	2000-01-02	2000-12-29
2001	2001-01-18	2001-12-31
2002	2002-01-01	2002-12-27
2003	2003-02-02	2003-12-17
2004	2004-01-12	2004-12-11
2005	2005-01-07	2005-12-17
2006	2006-01-04	2006-11-09
2007	2007-01-03	2007-12-31
2008	2008-01-01	2008-12-09
2009	2009-01-02	2009-12-30
2010	2010-01-04	2010-12-28
2011	2011-01-06	2011-12-25
2012	2012-01-15	2012-12-29
2013	2013-01-10	2013-11-30

Every Fixed Threshold

Fixed thresholds at The Head
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	55	51	1988	40
25 mm (0.98 in): Days with 25 mm or more rain	55	21	1975	8
50 mm (1.97 in): Days with 50 mm or more rain	48	7	1974	2
100 mm (3.94 in): Days with 100 mm or more rain	21	3	1974	1
200 mm (7.87 in): Days with 200 mm or more rain	3	1	1959	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1959.

Download the Data

Data for The Head 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).

The Head Threshold Days by Year (ASN00041046)

Key Facts for The Head Thresholds

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

Every Fixed Threshold

Download the Data

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