Marlow 1 WSW Threshold Days by Year

20 fixed thresholds counted per year at Marlow 1 WSW (USC00345581): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Marlow 1 WSW Thresholds

Marlow 1 WSW: days with 10 mm (0.39 in) or more of precipitation in 126 years, most in 1908 with 41.
Marlow 1 WSW: days with 25 mm (0.98 in) or more of precipitation in 126 years, most in 1908 with 23.
Marlow 1 WSW: days with 50 mm (1.97 in) or more of precipitation in 118 years, most in 1902 with 9.
Marlow 1 WSW: days with a maximum temperature at or above 30 C (86 F) in 76 years, most in 1939 with 157.
20 fixed thresholds have at least one qualifying day at Marlow 1 WSW.

Days at or above 30 C (86 F)

76 years with a qualifying day

Days per year at Marlow 1 WSW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 157 in 1939.

Days at or above 30 C (86 F) per year at Marlow 1 WSW
Year	Days	Decade average
1901	124	107.8
1902	108	107.8
1903	94	107.8
1904	104	107.8
1905	122	107.8
1906	81	107.8
1907	118	107.8
1908	90	107.8
1909	129	107.8
1910	132	121.5
1911	142	121.5
1912	114	121.5
1913	118	121.5
1914	119	121.5
1915	89	121.5
1916	140	121.5
1917	125	121.5
1918	133	121.5
1919	103	121.5
1920	106	121.2
1921	131	121.2
1922	122	121.2
1923	107	121.2
1924	112	121.2
1925	137	121.2
1926	116	121.2
1927	125	121.2
1928	131	121.2
1929	125	121.2
1930	120	127
1931	127	127
1932	106	127
1933	135	127
1934	129	127
1935	93	127
1936	122	127
1937	142	127
1938	139	127
1939	157	127
1940	107	108.1
1941	96	108.1
1942	102	108.1
1943	123	108.1
1944	108	108.1
1945	100	108.1
1946	103	108.1
1947	119	108.1
1948	118	108.1
1949	105	108.1
1950	99	122.3
1951	116	122.3
1952	125	122.3
1953	131	122.3
1954	140	122.3
1955	124	122.3
1956	157	122.3
1957	99	122.3
1958	107	122.3
1959	125	122.3
1960	109	109
1961	93	109
1962	122	109
1963	145	109
1964	112	109
1965	99	109
1966	107	109
1967	99	109
1968	95	109
1969	109	109
1970	114	111.6
1971	110	111.6
1972	140	111.6
1973	103	111.6
1974	104	111.6
1975	109	111.6
1976	101	111.6

For each year, a bar from the first to the last day at Marlow 1 WSW meeting 30 C (86 F).

First to last qualifying date each year at Marlow 1 WSW
Year	First date	Last date
1901	1901-04-25	1901-10-06
1902	1902-04-05	1902-10-09
1903	1903-04-01	1903-11-15
1904	1904-02-26	1904-10-10
1905	1905-03-27	1905-10-16
1906	1906-04-09	1906-10-04
1907	1907-03-17	1907-10-02
1908	1908-03-17	1908-09-22
1909	1909-04-03	1909-11-03
1910	1910-03-05	1910-10-16
1911	1911-01-31	1911-10-18
1912	1912-03-19	1912-10-07
1913	1913-04-17	1913-10-06
1914	1914-04-16	1914-10-17
1915	1915-04-28	1915-10-29
1916	1916-03-05	1916-11-02
1917	1917-03-14	1917-10-28
1918	1918-02-23	1918-10-08
1919	1919-03-15	1919-10-04
1920	1920-04-16	1920-10-10
1921	1921-04-23	1921-10-23
1922	1922-04-07	1922-10-27
1923	1923-04-07	1923-10-11
1924	1924-04-15	1924-11-06
1925	1925-03-22	1925-10-06
1926	1926-05-16	1926-10-18
1927	1927-04-03	1927-10-26
1928	1928-03-12	1928-10-20
1929	1929-03-06	1929-10-17
1930	1930-04-05	1930-09-30
1931	1931-05-15	1931-10-11
1932	1932-03-20	1932-10-18
1933	1933-04-09	1933-10-19
1934	1934-03-21	1934-10-12
1935	1935-03-26	1935-10-15
1936	1936-04-11	1936-10-18
1937	1937-04-15	1937-10-31
1938	1938-03-20	1938-10-31
1939	1939-03-14	1939-10-25
1940	1940-03-31	1940-10-24
1941	1941-05-14	1941-10-13
1942	1942-04-04	1942-10-10
1943	1943-04-03	1943-10-29
1944	1944-05-13	1944-10-06
1945	1945-05-01	1945-11-06
1946	1946-03-30	1946-09-25
1947	1947-05-03	1947-10-17
1948	1948-04-06	1948-10-31
1949	1949-04-08	1949-10-08
1950	1950-04-02	1950-10-31
1951	1951-03-21	1951-10-15
1952	1952-04-07	1952-10-13
1953	1953-03-20	1953-10-18
1954	1954-03-10	1954-10-14
1955	1955-03-10	1955-12-24
1956	1956-02-24	1956-10-12
1957	1957-06-06	1957-10-05
1958	1958-04-23	1958-10-20
1959	1959-03-24	1959-10-10
1960	1960-03-31	1960-10-05
1961	1961-04-19	1961-09-29
1962	1962-04-29	1962-10-22
1963	1963-03-18	1963-10-27
1964	1964-04-12	1964-10-18
1965	1965-04-21	1965-10-10
1966	1966-03-31	1966-10-14
1967	1967-03-10	1967-10-06
1968	1968-05-02	1968-10-14
1969	1969-05-21	1969-10-10
1970	1970-04-28	1970-10-07
1971	1971-03-13	1971-09-27
1972	1972-03-26	1972-10-18
1973	1973-05-09	1973-10-10
1974	1974-03-18	1974-09-12
1975	1975-04-25	1975-10-13
1976	1976-03-01	1976-10-02

Every Fixed Threshold

Fixed thresholds at Marlow 1 WSW
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	76	157	1939	101
35 C (95 F): Days	76	94	1939	33
40 C (104 F): Days	49	33	1934	4
45 C (113 F): Days	1	2	1936	2
90 F (32.2 C): Days	76	126	1939	68
100 F (37.8 C): Days	71	62	1934	4
110 F (43.3 C): Days	9	4	1936	1
0 C (32 F): Ice days (max	73	15	1940	6
0 C (32 F): Frost days (min	76	95	1912	84
-10 C (14 F): Days with min	74	20	1905	9
-20 C (-4 F): Days with min	8	3	1912	1
20 C (68 F): Tropical nights (min	76	104	1954	40
25 C (77 F): Days with min	46	24	1934	1
10 mm (0.39 in): Days with 10 mm or more rain	126	41	1908	18
25 mm (0.98 in): Days with 25 mm or more rain	126	23	1908	5
50 mm (1.97 in): Days with 50 mm or more rain	118	9	1902	2
100 mm (3.94 in): Days with 100 mm or more rain	31	2	1908	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1987	1
10 cm (3.9 in): Days with 10 cm or more snowfall	49	3	1917	2
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1921	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1901.

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Data for Marlow 1 WSW 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Marlow 1 WSW Threshold Days by Year

Key Facts for Marlow 1 WSW Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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