Brooklyn Threshold Days by Year (USC00450917)

6 fixed thresholds counted per year at Brooklyn (USC00450917): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Brooklyn Thresholds

Brooklyn: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1961 with 87.
Brooklyn: days with 25 mm (0.98 in) or more of precipitation in 40 years, most in 1950 with 34.
Brooklyn: days with 50 mm (1.97 in) or more of precipitation in 40 years, most in 1932 with 12.
Brooklyn: days with 10 cm (3.9 in) or more of snowfall in 15 years, most in 1949 with 4.
6 fixed thresholds have at least one qualifying day at Brooklyn.

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

40 years with a qualifying day

Days per year at Brooklyn with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 87 in 1961.

Days with 10 mm (0.39 in) or more of precipitation per year at Brooklyn
Year	Days	Decade average
1930	44	59.8
1931	72	59.8
1932	76	59.8
1933	76	59.8
1934	67	59.8
1935	52	59.8
1936	49	59.8
1938	51	59.8
1939	51	59.8
1940	66	56.9
1941	41	56.9
1942	45	56.9
1944	51	56.9
1945	67	56.9
1946	67	56.9
1948	66	56.9
1949	52	56.9
1950	72	65.9
1951	71	65.9
1952	46	65.9
1953	76	65.9
1954	66	65.9
1955	71	65.9
1956	72	65.9
1957	59	65.9
1958	60	65.9
1959	66	65.9
1960	74	68.2
1961	87	68.2
1962	59	68.2
1963	65	68.2
1964	68	68.2
1965	57	68.2
1966	72	68.2
1967	73	68.2
1968	76	68.2
1969	51	68.2
1970	63	71.3
1971	75	71.3
1972	76	71.3

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

First to last qualifying date each year at Brooklyn
Year	First date	Last date
1930	1930-01-01	1930-12-23
1931	1931-01-02	1931-12-31
1932	1932-01-05	1932-12-31
1933	1933-01-01	1933-12-29
1934	1934-01-02	1934-12-31
1935	1935-01-02	1935-12-31
1936	1936-01-01	1936-12-23
1938	1938-01-12	1938-12-31
1939	1939-01-01	1939-12-31
1940	1940-01-01	1940-12-26
1941	1941-01-17	1941-12-23
1942	1942-01-07	1942-12-28
1944	1944-01-01	1944-12-30
1945	1945-01-05	1945-12-31
1946	1946-01-02	1946-12-14
1948	1948-01-01	1948-12-31
1949	1949-01-21	1949-12-31
1950	1950-01-06	1950-12-30
1951	1951-01-02	1951-12-21
1952	1952-01-09	1952-12-31
1953	1953-01-02	1953-12-20
1954	1954-01-02	1954-12-31
1955	1955-01-01	1955-12-26
1956	1956-01-01	1956-12-23
1957	1957-01-07	1957-12-28
1958	1958-01-22	1958-12-30
1959	1959-01-06	1959-12-24
1960	1960-01-23	1960-12-31
1961	1961-01-05	1961-12-29
1962	1962-01-02	1962-12-30
1963	1963-01-01	1963-12-31
1964	1964-01-01	1964-12-31
1965	1965-01-01	1965-12-29
1966	1966-01-02	1966-12-29
1967	1967-01-01	1967-12-25
1968	1968-01-04	1968-12-26
1969	1969-01-01	1969-12-24
1970	1970-01-14	1970-12-31
1971	1971-01-08	1971-12-31
1972	1972-01-05	1972-12-30

Every Fixed Threshold

Fixed thresholds at Brooklyn
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	40	87	1961	76
25 mm (0.98 in): Days with 25 mm or more rain	40	34	1950	19
50 mm (1.97 in): Days with 50 mm or more rain	40	12	1932	8
100 mm (3.94 in): Days with 100 mm or more rain	6	1	1933	1
10 cm (3.9 in): Days with 10 cm or more snowfall	15	4	1949	2
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1950	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1930.

Download the Data

Data for Brooklyn 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).

Brooklyn Threshold Days by Year (USC00450917)

Key Facts for Brooklyn Thresholds

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

Every Fixed Threshold

Download the Data

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