Oak Park Threshold Days by Year

4 fixed thresholds counted per year at Oak Park (ASN00010504): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Oak Park Thresholds

Oak Park: days with 10 mm (0.39 in) or more of precipitation in 87 years, most in 1926 with 22.
Oak Park: days with 25 mm (0.98 in) or more of precipitation in 68 years, most in 1942 with 5.
Oak Park: days with 50 mm (1.97 in) or more of precipitation in 11 years, most in 1913 with 2.
Oak Park: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1982 with 1.
4 fixed thresholds have at least one qualifying day at Oak Park.

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

87 years with a qualifying day

Days per year at Oak Park with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 22 in 1926.

Days with 10 mm (0.39 in) or more of precipitation per year at Oak Park
Year	Days	Decade average
1912	9	12.8
1913	15	12.8
1914	12	12.8
1915	13	12.8
1916	10	12.8
1917	17	12.8
1918	17	12.8
1919	9	12.8
1920	14	13.8
1921	17	13.8
1922	11	13.8
1923	19	13.8
1924	14	13.8
1925	9	13.8
1926	22	13.8
1927	12	13.8
1928	10	13.8
1929	10	13.8
1930	12	11.4
1931	11	11.4
1932	12	11.4
1933	15	11.4
1934	11	11.4
1935	8	11.4
1936	7	11.4
1937	11	11.4
1938	11	11.4
1939	16	11.4
1940	4	11.3
1941	12	11.3
1942	14	11.3
1943	16	11.3
1944	6	11.3
1945	15	11.3
1946	9	11.3
1947	13	11.3
1948	10	11.3
1949	14	11.3
1950	9	11
1951	14	11
1952	10	11
1953	9	11
1954	7	11
1955	19	11
1956	7	11
1957	11	11
1958	11	11
1959	13	11
1960	13	12.9
1961	19	12.9
1962	9	12.9
1963	20	12.9
1964	11	12.9
1965	12	12.9
1966	9	12.9
1967	10	12.9
1968	13	12.9
1971	15	13.9
1972	7	13.9
1973	11	13.9
1974	18	13.9
1975	15	13.9
1976	13	13.9
1977	21	13.9
1978	13	13.9
1979	12	13.9
1980	15	11.1
1981	10	11.1
1982	7	11.1
1983	16	11.1
1984	10	11.1
1985	9	11.1
1986	7	11.1
1987	6	11.1
1988	15	11.1
1989	16	11.1
1990	11	11.1
1991	11	11.1
1992	12	11.1
1993	9	11.1
1994	7	11.1
1995	13	11.1
1996	15	11.1
1997	11	11.1
2005	16	16
2020	10	12.5
2021	15	12.5

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

First to last qualifying date each year at Oak Park
Year	First date	Last date
1912	1912-03-01	1912-09-01
1913	1913-03-03	1913-12-20
1914	1914-02-18	1914-12-04
1915	1915-01-02	1915-11-13
1916	1916-02-15	1916-10-07
1917	1917-01-29	1917-09-11
1918	1918-01-26	1918-11-27
1919	1919-04-16	1919-10-05
1920	1920-02-21	1920-08-30
1921	1921-01-19	1921-12-10
1922	1922-02-23	1922-11-28
1923	1923-01-20	1923-09-26
1924	1924-05-12	1924-10-26
1925	1925-03-05	1925-12-10
1926	1926-02-04	1926-11-19
1927	1927-03-13	1927-12-13
1928	1928-01-09	1928-09-28
1929	1929-02-16	1929-11-11
1930	1930-03-09	1930-12-13
1931	1931-03-06	1931-09-05
1932	1932-04-09	1932-10-29
1933	1933-04-10	1933-12-02
1934	1934-03-09	1934-09-11
1935	1935-02-01	1935-07-18
1936	1936-04-15	1936-12-16
1937	1937-03-04	1937-08-31
1938	1938-03-14	1938-09-28
1939	1939-01-21	1939-10-31
1940	1940-07-15	1940-12-03
1941	1941-03-17	1941-12-13
1942	1942-03-14	1942-12-02
1943	1943-01-31	1943-10-11
1944	1944-05-24	1944-08-29
1945	1945-03-26	1945-11-13
1946	1946-05-20	1946-11-13
1947	1947-04-07	1947-11-27
1948	1948-04-16	1948-12-23
1949	1949-05-10	1949-11-14
1950	1950-05-08	1950-10-02
1951	1951-01-01	1951-12-02
1952	1952-01-23	1952-12-19
1953	1953-01-02	1953-11-04
1954	1954-05-23	1954-11-11
1955	1955-02-15	1955-10-17
1956	1956-03-05	1956-10-13
1957	1957-01-21	1957-10-21
1958	1958-05-21	1958-12-21
1959	1959-02-09	1959-12-31
1960	1960-01-01	1960-12-16
1961	1961-01-26	1961-12-15
1962	1962-01-29	1962-10-20
1963	1963-03-16	1963-11-24
1964	1964-04-01	1964-10-21
1965	1965-01-14	1965-12-20
1966	1966-02-13	1966-10-23
1967	1967-02-03	1967-08-21
1968	1968-01-27	1968-09-11
1971	1971-01-31	1971-11-23
1972	1972-04-20	1972-08-25
1973	1973-04-09	1973-12-01
1974	1974-02-03	1974-11-18
1975	1975-04-02	1975-11-17
1976	1976-01-07	1976-08-15
1977	1977-05-16	1977-11-24
1978	1978-01-02	1978-11-03
1979	1979-01-13	1979-11-13
1980	1980-02-11	1980-12-31
1981	1981-04-04	1981-11-26
1982	1982-01-21	1982-12-21
1983	1983-02-16	1983-12-31
1984	1984-04-30	1984-11-17
1985	1985-05-26	1985-09-22
1986	1986-02-22	1986-09-11
1987	1987-03-26	1987-11-01
1988	1988-03-24	1988-09-22
1989	1989-01-13	1989-11-13
1990	1990-01-29	1990-10-10
1991	1991-02-26	1991-12-25
1992	1992-02-07	1992-12-01
1993	1993-03-19	1993-11-16
1994	1994-05-24	1994-10-14
1995	1995-05-13	1995-12-21
1996	1996-05-31	1996-12-13
1997	1997-02-20	1997-09-24
2005	2005-03-19	2005-11-27
2020	2020-03-15	2020-11-15
2021	2021-02-08	2021-11-22

Every Fixed Threshold

Fixed thresholds at Oak Park
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	87	22	1926	15
25 mm (0.98 in): Days with 25 mm or more rain	68	5	1942	4
50 mm (1.97 in): Days with 50 mm or more rain	11	2	1913	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1982	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1912.

Download the Data

Data for Oak Park 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Oak Park Threshold Days by Year

Key Facts for Oak Park Thresholds

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

Every Fixed Threshold

Download the Data

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