Holland Wtp Threshold Days by Year (USC00203858)

18 fixed thresholds counted per year at Holland Wtp (USC00203858): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Holland Wtp Thresholds

Holland Wtp: days with 10 mm (0.39 in) or more of precipitation in 95 years, most in 1965 with 40.
Holland Wtp: days with 25 mm (0.98 in) or more of precipitation in 95 years, most in 1967 with 14.
Holland Wtp: days with 10 cm (3.9 in) or more of snowfall in 93 years, most in 1962 with 14.
Holland Wtp: days with a maximum temperature at or above 30 C (86 F) in 91 years, most in 1955 with 56.
18 fixed thresholds have at least one qualifying day at Holland Wtp.

Days at or above 30 C (86 F)

91 years with a qualifying day

Days per year at Holland Wtp with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 56 in 1955.

Days at or above 30 C (86 F) per year at Holland Wtp
Year	Days	Decade average
1907	12	13.5
1909	15	13.5
1910	21	25.9
1911	24	25.9
1912	18	25.9
1913	41	25.9
1914	22	25.9
1915	12	25.9
1916	38	25.9
1917	14	25.9
1918	27	25.9
1919	42	25.9
1920	25	20.3
1921	52	20.3
1922	23	20.3
1923	21	20.3
1924	7	20.3
1925	29	20.3
1926	11	20.3
1927	9	20.3
1928	13	20.3
1929	13	20.3
1930	29	30.4
1931	43	30.4
1932	20	30.4
1933	30	30.4
1934	45	30.4
1935	19	30.4
1936	30	30.4
1937	38	30.4
1938	17	30.4
1939	33	30.4
1940	25	32.7
1941	44	32.7
1942	25	32.7
1943	19	32.7
1944	39	32.7
1945	25	32.7
1946	25	32.7
1947	47	32.7
1948	34	32.7
1949	44	32.7
1950	13	31.5
1951	19	31.5
1952	41	31.5
1953	40	31.5
1954	34	31.5
1955	56	31.5
1956	21	31.5
1957	22	31.5
1958	19	31.5
1959	50	31.5
1960	23	20.8
1961	22	20.8
1962	30	20.8
1963	23	20.8
1964	38	20.8
1965	12	20.8
1966	13	20.8
1967	3	20.8
1968	28	20.8
1969	16	20.8
1970	20	26.8
1971	18	26.8
1972	11	26.8
1973	40	26.8
1974	30	26.8
1975	31	26.8
1976	38	26.8
1977	41	26.8
1978	12	26.8
1980	24	28
1981	18	28
1982	19	28
1983	54	28
1984	32	28
1985	16	28
1986	17	28
1988	49	28
1989	23	28
1990	32	28.9
1991	56	28.9
1992	17	28.9
1993	30	28.9
1994	25	28.9
1995	38	28.9
1996	11	28.9
1998	22	28.9
2001	33	36.7
2002	50	36.7
2003	27	36.7

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

First to last qualifying date each year at Holland Wtp
Year	First date	Last date
1907	1907-06-17	1907-09-19
1909	1909-06-20	1909-09-14
1910	1910-06-21	1910-08-15
1911	1911-05-25	1911-09-17
1912	1912-05-27	1912-09-10
1913	1913-06-06	1913-09-10
1914	1914-05-29	1914-09-21
1915	1915-04-26	1915-09-15
1916	1916-05-26	1916-09-12
1917	1917-07-21	1917-08-19
1918	1918-05-17	1918-08-26
1919	1919-05-27	1919-10-03
1920	1920-06-09	1920-09-26
1921	1921-05-20	1921-09-29
1922	1922-05-10	1922-09-08
1923	1923-06-17	1923-08-03
1924	1924-06-19	1924-09-21
1925	1925-05-22	1925-09-19
1926	1926-05-07	1926-08-28
1927	1927-05-21	1927-09-15
1928	1928-07-07	1928-09-14
1929	1929-05-29	1929-09-04
1930	1930-05-10	1930-09-23
1931	1931-06-11	1931-09-21
1932	1932-05-15	1932-09-19
1933	1933-06-06	1933-09-25
1934	1934-05-09	1934-09-21
1935	1935-07-01	1935-09-25
1936	1936-05-09	1936-09-14
1937	1937-05-30	1937-09-23
1938	1938-06-21	1938-08-20
1939	1939-05-26	1939-09-16
1940	1940-06-06	1940-09-20
1941	1941-05-05	1941-09-21
1942	1942-04-25	1942-09-16
1943	1943-06-13	1943-08-31
1944	1944-05-29	1944-09-04
1945	1945-06-24	1945-09-23
1946	1946-06-16	1946-09-22
1947	1947-06-09	1947-10-17
1948	1948-06-03	1948-09-17
1949	1949-05-05	1949-10-08
1950	1950-05-24	1950-09-09
1951	1951-05-01	1951-10-04
1952	1952-06-06	1952-09-14
1953	1953-05-30	1953-09-30
1954	1954-05-31	1954-09-07
1955	1955-06-04	1955-09-18
1956	1956-06-10	1956-09-05
1957	1957-06-10	1957-09-01
1958	1958-06-30	1958-08-31
1959	1959-05-03	1959-09-09
1960	1960-06-27	1960-09-09
1961	1961-06-12	1961-09-11
1962	1962-05-15	1962-09-12
1963	1963-06-02	1963-07-30
1964	1964-06-08	1964-09-10
1965	1965-06-22	1965-08-16
1966	1966-06-18	1966-07-26
1967	1967-06-14	1967-06-16
1968	1968-06-07	1968-09-03
1969	1969-06-12	1969-08-31
1970	1970-06-11	1970-09-21
1971	1971-06-05	1971-10-02
1972	1972-05-23	1972-08-30
1973	1973-06-11	1973-09-27
1974	1974-05-22	1974-09-20
1975	1975-05-20	1975-08-29
1976	1976-06-05	1976-09-09
1977	1977-05-16	1977-09-01
1978	1978-05-28	1978-09-11
1980	1980-05-30	1980-09-09
1981	1981-06-16	1981-08-26
1982	1982-05-14	1982-08-17
1983	1983-06-12	1983-09-11
1984	1984-06-05	1984-08-30
1985	1985-04-23	1985-09-07
1986	1986-04-26	1986-08-18
1988	1988-05-09	1988-08-18
1989	1989-06-20	1989-08-05
1990	1990-04-25	1990-09-13
1991	1991-05-12	1991-09-16
1992	1992-05-12	1992-09-07
1993	1993-05-08	1993-08-31
1994	1994-04-27	1994-09-16
1995	1995-06-07	1995-09-06
1996	1996-06-30	1996-09-07
1998	1998-05-16	1998-09-27
2001	2001-05-01	2001-09-09
2002	2002-04-16	2002-09-11
2003	2003-06-24	2003-08-29

Every Fixed Threshold

Fixed thresholds at Holland Wtp
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	91	56	1955	27
35 C (95 F): Days	46	16	1988	2
90 F (32.2 C): Days	89	33	1988	12
100 F (37.8 C): Days	6	4	1916	1
0 C (32 F): Ice days (max	91	81	1978	45
0 C (32 F): Frost days (min	88	166	1926	130
-10 C (14 F): Days with min	88	59	1963	22
-20 C (-4 F): Days with min	66	13	1912	3
-30 C (-22 F): Days with min	2	1	1912	1
20 C (68 F): Tropical nights (min	88	32	1931	27
25 C (77 F): Days with min	24	5	1988	1
10 mm (0.39 in): Days with 10 mm or more rain	95	40	1965	23
25 mm (0.98 in): Days with 25 mm or more rain	95	14	1967	5
50 mm (1.97 in): Days with 50 mm or more rain	54	4	1972	2
100 mm (3.94 in): Days with 100 mm or more rain	5	1	1967	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	93	14	1962	1
25 cm (9.8 in): Days with 25 cm or more snowfall	21	2	1970	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1907.

Download the Data

Data for Holland Wtp 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Holland Wtp Threshold Days by Year (USC00203858)

Key Facts for Holland Wtp Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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