Westland Threshold Days by Year (ASN00036051)

5 fixed thresholds counted per year at Westland (ASN00036051): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Westland Thresholds

Westland: days with 10 mm (0.39 in) or more of precipitation in 90 years, most in 1950 with 28.
Westland: days with 25 mm (0.98 in) or more of precipitation in 87 years, most in 1950 with 13.
Westland: days with 50 mm (1.97 in) or more of precipitation in 56 years, most in 1989 with 5.
Westland: days with 100 mm (3.94 in) or more of precipitation in 14 years, most in 1989 with 3.
5 fixed thresholds have at least one qualifying day at Westland.

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

90 years with a qualifying day

Days per year at Westland with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 28 in 1950.

Days with 10 mm (0.39 in) or more of precipitation per year at Westland
Year	Days	Decade average
1888	7	9.5
1889	12	9.5
1900	2	9.9
1901	8	9.9
1902	5	9.9
1903	17	9.9
1904	7	9.9
1905	3	9.9
1906	25	9.9
1907	10	9.9
1908	12	9.9
1909	10	9.9
1910	15	13.5
1911	16	13.5
1912	12	13.5
1913	15	13.5
1914	10	13.5
1915	6	13.5
1916	19	13.5
1917	20	13.5
1918	11	13.5
1919	11	13.5
1920	21	11.6
1921	20	11.6
1922	9	11.6
1923	6	11.6
1924	22	11.6
1925	5	11.6
1926	5	11.6
1928	10	11.6
1929	6	11.6
1930	13	9.4
1931	10	9.4
1932	9	9.4
1933	9	9.4
1935	10	9.4
1936	11	9.4
1937	8	9.4
1938	5	9.4
1941	26	11.2
1942	9	11.2
1943	6	11.2
1944	8	11.2
1945	8	11.2
1946	10	11.2
1947	13	11.2
1948	5	11.2
1949	16	11.2
1950	28	17.5
1951	7	17.5
1961	7	7.7
1962	9	7.7
1963	15	7.7
1964	8	7.7
1965	4	7.7
1966	7	7.7
1967	4	7.7
1968	7	7.7
1969	8	7.7
1975	14	12.8
1976	12	12.8
1977	18	12.8
1978	15	12.8
1979	5	12.8
1980	11	11.1
1981	15	11.1
1982	8	11.1
1983	9	11.1
1984	12	11.1
1985	11	11.1
1986	8	11.1
1987	11	11.1
1988	6	11.1
1989	20	11.1
1990	14	12.2
1991	16	12.2
1992	9	12.2
1993	8	12.2
1994	6	12.2
1995	8	12.2
1996	11	12.2
1997	10	12.2
1998	17	12.2
1999	23	12.2
2000	17	10
2001	14	10
2002	4	10
2003	8	10
2004	8	10
2005	9	10

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

First to last qualifying date each year at Westland
Year	First date	Last date
1888	1888-02-06	1888-12-24
1889	1889-01-03	1889-12-11
1900	1900-07-02	1900-07-03
1901	1901-01-05	1901-12-25
1902	1902-01-22	1902-12-17
1903	1903-01-16	1903-12-26
1904	1904-01-02	1904-12-17
1905	1905-04-10	1905-11-20
1906	1906-01-02	1906-11-27
1907	1907-03-11	1907-12-27
1908	1908-02-01	1908-11-29
1909	1909-01-11	1909-12-03
1910	1910-01-05	1910-12-11
1911	1911-01-24	1911-12-04
1912	1912-01-28	1912-12-24
1913	1913-01-07	1913-12-19
1914	1914-01-19	1914-11-29
1915	1915-05-14	1915-12-27
1916	1916-02-04	1916-12-30
1917	1917-01-01	1917-12-24
1918	1918-01-07	1918-11-05
1919	1919-02-03	1919-12-21
1920	1920-02-01	1920-12-06
1921	1921-01-04	1921-12-26
1922	1922-01-30	1922-12-26
1923	1923-01-08	1923-12-27
1924	1924-01-06	1924-12-31
1925	1925-01-13	1925-03-28
1926	1926-03-17	1926-12-19
1928	1928-01-10	1928-12-13
1929	1929-03-27	1929-12-03
1930	1930-01-24	1930-10-29
1931	1931-03-21	1931-12-08
1932	1932-02-12	1932-11-25
1933	1933-02-15	1933-12-25
1935	1935-02-23	1935-12-29
1936	1936-01-07	1936-12-07
1937	1937-01-01	1937-11-25
1938	1938-01-02	1938-11-16
1941	1941-01-01	1941-12-03
1942	1942-05-25	1942-12-25
1943	1943-01-22	1943-09-04
1944	1944-01-20	1944-12-18
1945	1945-01-30	1945-10-19
1946	1946-01-05	1946-12-25
1947	1947-02-02	1947-12-24
1948	1948-02-14	1948-12-30
1949	1949-01-09	1949-12-20
1950	1950-01-17	1950-12-19
1951	1951-01-07	1951-12-29
1961	1961-01-02	1961-11-24
1962	1962-01-02	1962-12-29
1963	1963-01-10	1963-11-29
1964	1964-01-14	1964-11-14
1965	1965-03-09	1965-12-14
1966	1966-01-05	1966-11-07
1967	1967-02-02	1967-06-06
1968	1968-01-13	1968-05-21
1969	1969-01-15	1969-12-23
1975	1975-01-02	1975-12-26
1976	1976-01-13	1976-12-22
1977	1977-01-13	1977-12-19
1978	1978-01-25	1978-12-26
1979	1979-02-07	1979-12-26
1980	1980-01-05	1980-12-02
1981	1981-01-15	1981-11-09
1982	1982-01-08	1982-12-15
1983	1983-04-04	1983-12-03
1984	1984-01-01	1984-12-19
1985	1985-06-02	1985-12-08
1986	1986-02-04	1986-12-07
1987	1987-01-24	1987-12-29
1988	1988-04-01	1988-12-11
1989	1989-01-25	1989-11-29
1990	1990-02-20	1990-06-05
1991	1991-01-15	1991-12-11
1992	1992-01-29	1992-12-18
1993	1993-01-01	1993-12-09
1994	1994-02-01	1994-11-30
1995	1995-01-04	1995-05-03
1996	1996-01-02	1996-12-07
1997	1997-01-13	1997-10-19
1998	1998-01-12	1998-12-31
1999	1999-01-01	1999-12-27
2000	2000-01-27	2000-12-18
2001	2001-01-08	2001-12-16
2002	2002-01-06	2002-02-26
2003	2003-02-09	2003-12-04
2004	2004-01-13	2004-12-10
2005	2005-01-05	2005-09-11

Every Fixed Threshold

Fixed thresholds at Westland
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	90	28	1950	9
25 mm (0.98 in): Days with 25 mm or more rain	87	13	1950	1
50 mm (1.97 in): Days with 50 mm or more rain	56	5	1989	1
100 mm (3.94 in): Days with 100 mm or more rain	14	3	1989	1
200 mm (7.87 in): Days with 200 mm or more rain	2	2	1989	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1888.

Download the Data

Data for Westland 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).

Westland Threshold Days by Year (ASN00036051)

Key Facts for Westland Thresholds

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

Every Fixed Threshold

Download the Data

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