La Plata 1 W Threshold Days by Year (USC00185080)

18 fixed thresholds counted per year at La Plata 1 W (USC00185080): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for La Plata 1 W Thresholds

La Plata 1 W: days with a maximum temperature at or above 30 C (86 F) in 74 years, most in 1930 with 100.
La Plata 1 W: days with a maximum temperature at or above 90 F (32.2 C) in 74 years, most in 1930 with 69.
La Plata 1 W: nights with a minimum temperature at or below 0 C (32 F) in 74 years, most in 1960 with 125.
La Plata 1 W: nights with a minimum temperature at or below -10 C (14 F) in 74 years, most in 1958 with 25.
18 fixed thresholds have at least one qualifying day at La Plata 1 W.

Days at or above 30 C (86 F)

74 years with a qualifying day

Days per year at La Plata 1 W with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 100 in 1930.

Days at or above 30 C (86 F) per year at La Plata 1 W
Year	Days	Decade average
1895	68	68
1920	49	58.8
1921	74	58.8
1922	61	58.8
1923	60	58.8
1924	49	58.8
1925	84	58.8
1926	57	58.8
1927	43	58.8
1928	47	58.8
1929	64	58.8
1930	100	59
1931	62	59
1932	62	59
1933	55	59
1934	54	59
1935	47	59
1936	55	59
1937	46	59
1938	47	59
1939	62	59
1942	73	69.4
1943	91	69.4
1944	83	69.4
1945	67	69.4
1946	44	69.4
1947	72	69.4
1948	48	69.4
1949	77	69.4
1950	53	68.6
1951	65	68.6
1953	70	68.6
1954	80	68.6
1955	60	68.6
1956	67	68.6
1957	82	68.6
1958	55	68.6
1959	85	68.6
1960	60	63.4
1961	72	63.4
1962	59	63.4
1963	67	63.4
1964	66	63.4
1965	63	63.4
1966	74	63.4
1967	42	63.4
1968	64	63.4
1969	67	63.4
1970	75	51.2
1971	54	51.2
1972	39	51.2
1973	61	51.2
1974	48	51.2
1975	37	51.2
1976	57	51.2
1977	66	51.2
1978	47	51.2
1979	28	51.2
1980	64	41.3
1981	32	41.3
1982	18	41.3
1983	62	41.3
1984	22	41.3
1985	32	41.3
1986	46	41.3
1987	54	41.3
1988	58	41.3
1989	25	41.3
1990	26	38.8
1991	64	38.8
1992	21	38.8
1993	47	38.8
1996	34	38.8
1997	41	38.8

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

First to last qualifying date each year at La Plata 1 W
Year	First date	Last date
1895	1895-05-10	1895-09-26
1920	1920-06-02	1920-10-15
1921	1921-03-21	1921-09-30
1922	1922-04-09	1922-10-05
1923	1923-04-20	1923-09-23
1924	1924-05-06	1924-09-02
1925	1925-04-23	1925-09-28
1926	1926-04-22	1926-10-04
1927	1927-04-20	1927-10-02
1928	1928-05-04	1928-09-13
1929	1929-04-06	1929-09-29
1930	1930-04-11	1930-09-27
1931	1931-05-29	1931-10-06
1932	1932-05-07	1932-09-23
1933	1933-05-14	1933-09-27
1934	1934-05-05	1934-09-27
1935	1935-04-27	1935-09-21
1936	1936-04-21	1936-09-23
1937	1937-04-18	1937-09-04
1938	1938-04-15	1938-09-07
1939	1939-04-24	1939-10-10
1942	1942-04-05	1942-09-19
1943	1943-05-06	1943-09-16
1944	1944-05-01	1944-10-07
1945	1945-03-16	1945-09-29
1946	1946-04-23	1946-10-31
1947	1947-05-01	1947-10-23
1948	1948-03-21	1948-09-20
1949	1949-05-04	1949-10-12
1950	1950-05-06	1950-11-01
1951	1951-04-29	1951-10-06
1953	1953-04-25	1953-09-30
1954	1954-05-02	1954-10-14
1955	1955-05-05	1955-09-20
1956	1956-04-28	1956-09-23
1957	1957-04-21	1957-09-22
1958	1958-04-19	1958-10-10
1959	1959-04-08	1959-10-08
1960	1960-04-14	1960-09-05
1961	1961-04-25	1961-09-25
1962	1962-04-22	1962-10-12
1963	1963-03-30	1963-09-20
1964	1964-04-17	1964-09-23
1965	1965-05-03	1965-09-23
1966	1966-04-24	1966-09-11
1967	1967-04-02	1967-10-05
1968	1968-03-22	1968-10-03
1969	1969-04-27	1969-10-20
1970	1970-05-09	1970-10-03
1971	1971-05-19	1971-11-02
1972	1972-04-19	1972-09-26
1973	1973-04-22	1973-09-29
1974	1974-04-28	1974-11-01
1975	1975-05-21	1975-10-15
1976	1976-04-16	1976-09-14
1977	1977-04-11	1977-09-20
1978	1978-04-01	1978-09-19
1979	1979-03-30	1979-10-22
1980	1980-05-05	1980-09-22
1981	1981-04-03	1981-09-15
1982	1982-05-12	1982-09-18
1983	1983-04-28	1983-09-20
1984	1984-05-20	1984-09-24
1985	1985-04-19	1985-09-10
1986	1986-03-30	1986-10-01
1987	1987-05-11	1987-09-18
1988	1988-05-23	1988-09-23
1989	1989-03-28	1989-09-11
1990	1990-03-12	1990-09-07
1991	1991-04-07	1991-09-19
1992	1992-04-17	1992-08-27
1993	1993-06-09	1993-09-15
1996	1996-04-22	1996-09-08
1997	1997-05-19	1997-09-20

Every Fixed Threshold

Fixed thresholds at La Plata 1 W
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	74	100	1930	41
35 C (95 F): Days	59	36	1930	5
40 C (104 F): Days	1	5	1930	5
90 F (32.2 C): Days	74	69	1930	24
100 F (37.8 C): Days	15	16	1930	1
0 C (32 F): Ice days (max	73	19	1936	2
0 C (32 F): Frost days (min	74	125	1960	68
-10 C (14 F): Days with min	74	25	1958	2
-20 C (-4 F): Days with min	12	2	1934	1
20 C (68 F): Tropical nights (min	74	58	1949	38
25 C (77 F): Days with min	14	4	1949	1
10 mm (0.39 in): Days with 10 mm or more rain	73	54	1937	27
25 mm (0.98 in): Days with 25 mm or more rain	73	18	1945	4
50 mm (1.97 in): Days with 50 mm or more rain	66	4	1920	1
100 mm (3.94 in): Days with 100 mm or more rain	15	2	1953	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1971	1
10 cm (3.9 in): Days with 10 cm or more snowfall	42	6	1960	6
25 cm (9.8 in): Days with 25 cm or more snowfall	6	1	1936	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1895.

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Data for La Plata 1 W 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).

La Plata 1 W Threshold Days by Year (USC00185080)

Key Facts for La Plata 1 W Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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