Perola Park Threshold Days by Year (ASN00044062)

5 fixed thresholds counted per year at Perola Park (ASN00044062): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Perola Park Thresholds

Perola Park: days with 10 mm (0.39 in) or more of precipitation in 107 years, most in 1956 with 39.
Perola Park: days with 25 mm (0.98 in) or more of precipitation in 105 years, most in 1956 with 18.
Perola Park: days with 50 mm (1.97 in) or more of precipitation in 67 years, most in 1924 with 7.
Perola Park: days with 100 mm (3.94 in) or more of precipitation in 12 years, most in 1921 with 1.
5 fixed thresholds have at least one qualifying day at Perola Park.

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

107 years with a qualifying day

Days per year at Perola Park with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 39 in 1956.

Days with 10 mm (0.39 in) or more of precipitation per year at Perola Park
Year	Days	Decade average
1917	25	18.7
1918	18	18.7
1919	13	18.7
1920	22	16.1
1921	22	16.1
1922	9	16.1
1923	11	16.1
1924	29	16.1
1925	17	16.1
1926	13	16.1
1927	14	16.1
1928	14	16.1
1929	10	16.1
1930	13	13.3
1931	16	13.3
1932	10	13.3
1933	19	13.3
1934	11	13.3
1935	4	13.3
1936	19	13.3
1937	9	13.3
1938	12	13.3
1939	20	13.3
1940	12	15.1
1941	21	15.1
1942	12	15.1
1943	13	15.1
1944	12	15.1
1945	13	15.1
1946	7	15.1
1947	19	15.1
1948	14	15.1
1949	28	15.1
1950	35	20.8
1951	10	20.8
1953	8	20.8
1954	25	20.8
1955	22	20.8
1956	39	20.8
1957	12	20.8
1958	18	20.8
1959	18	20.8
1960	14	16.1
1961	23	16.1
1962	24	16.1
1963	22	16.1
1964	17	16.1
1965	8	16.1
1966	17	16.1
1967	13	16.1
1968	13	16.1
1969	10	16.1
1970	8	15
1971	12	15
1972	8	15
1973	19	15
1974	16	15
1975	17	15
1976	20	15
1977	23	15
1978	21	15
1979	6	15
1980	9	16.1
1981	18	16.1
1982	11	16.1
1983	26	16.1
1984	19	16.1
1985	16	16.1
1986	13	16.1
1987	19	16.1
1988	13	16.1
1989	17	16.1
1990	13	17.7
1991	10	17.7
1992	13	17.7
1993	17	17.7
1994	11	17.7
1995	15	17.7
1996	25	17.7
1997	22	17.7
1998	29	17.7
1999	22	17.7
2000	23	16.2
2001	6	16.2
2002	7	16.2
2003	10	16.2
2004	22	16.2
2005	15	16.2
2006	15	16.2
2007	32	16.2
2008	16	16.2
2009	16	16.2
2010	33	12.5
2012	11	12.5
2013	3	12.5
2015	8	12.5
2016	20	12.5
2017	11	12.5
2018	7	12.5
2019	7	12.5
2020	13	17.3
2021	22	17.3
2022	27	17.3
2023	14	17.3
2024	23	17.3
2025	15	17.3
2026	7	17.3

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

First to last qualifying date each year at Perola Park
Year	First date	Last date
1917	1917-01-03	1917-12-25
1918	1918-01-02	1918-12-15
1919	1919-01-16	1919-12-06
1920	1920-02-05	1920-12-07
1921	1921-01-04	1921-12-30
1922	1922-01-16	1922-12-19
1923	1923-03-09	1923-12-27
1924	1924-01-07	1924-12-14
1925	1925-01-02	1925-12-14
1926	1926-01-01	1926-12-26
1927	1927-01-22	1927-12-23
1928	1928-01-18	1928-12-27
1929	1929-01-11	1929-12-29
1930	1930-01-25	1930-11-25
1931	1931-03-12	1931-12-05
1932	1932-04-08	1932-12-21
1933	1933-01-27	1933-11-19
1934	1934-02-01	1934-11-21
1935	1935-06-30	1935-10-21
1936	1936-01-06	1936-12-15
1937	1937-02-03	1937-11-25
1938	1938-01-07	1938-11-06
1939	1939-01-20	1939-12-20
1940	1940-02-02	1940-12-29
1941	1941-01-01	1941-12-25
1942	1942-02-05	1942-12-26
1943	1943-01-01	1943-11-19
1944	1944-01-26	1944-12-01
1945	1945-01-05	1945-12-19
1946	1946-01-19	1946-12-20
1947	1947-02-11	1947-12-25
1948	1948-01-02	1948-12-31
1949	1949-01-09	1949-11-22
1950	1950-01-19	1950-12-25
1951	1951-01-01	1951-12-28
1953	1953-02-08	1953-12-31
1954	1954-01-15	1954-12-28
1955	1955-01-23	1955-12-01
1956	1956-01-12	1956-12-28
1957	1957-02-04	1957-11-02
1958	1958-01-01	1958-12-31
1959	1959-01-11	1959-12-18
1960	1960-01-22	1960-12-27
1961	1961-01-03	1961-12-15
1962	1962-01-03	1962-12-30
1963	1963-01-09	1963-11-30
1964	1964-01-12	1964-12-28
1965	1965-01-06	1965-12-15
1966	1966-01-06	1966-09-30
1967	1967-02-10	1967-12-29
1968	1968-02-16	1968-12-25
1969	1969-01-20	1969-12-30
1970	1970-01-11	1970-11-21
1971	1971-01-18	1971-12-27
1972	1972-02-17	1972-12-02
1973	1973-02-02	1973-12-25
1974	1974-01-02	1974-11-18
1975	1975-01-02	1975-12-31
1976	1976-01-12	1976-12-23
1977	1977-01-05	1977-12-19
1978	1978-01-15	1978-12-26
1979	1979-02-05	1979-12-24
1980	1980-01-06	1980-12-02
1981	1981-01-18	1981-12-23
1982	1982-01-16	1982-05-30
1983	1983-02-22	1983-12-31
1984	1984-01-01	1984-12-19
1985	1985-02-19	1985-12-31
1986	1986-02-03	1986-11-30
1987	1987-01-01	1987-12-30
1988	1988-03-01	1988-12-27
1989	1989-02-04	1989-12-14
1990	1990-02-22	1990-12-08
1991	1991-01-05	1991-12-10
1992	1992-01-20	1992-12-16
1993	1993-01-05	1993-12-22
1994	1994-01-15	1994-11-27
1995	1995-01-03	1995-12-22
1996	1996-01-03	1996-12-12
1997	1997-01-12	1997-12-20
1998	1998-01-09	1998-12-09
1999	1999-01-01	1999-12-27
2000	2000-01-11	2000-12-16
2001	2001-01-30	2001-12-15
2002	2002-01-06	2002-08-19
2003	2003-02-06	2003-12-05
2004	2004-01-11	2004-12-25
2005	2005-01-05	2005-11-22
2006	2006-01-11	2006-12-31
2007	2007-01-02	2007-12-28
2008	2008-01-09	2008-12-28
2009	2009-01-25	2009-12-31
2010	2010-01-16	2010-12-27
2012	2012-01-15	2012-12-28
2013	2013-03-01	2013-06-12
2015	2015-01-02	2015-12-02
2016	2016-01-03	2016-12-17
2017	2017-01-03	2017-11-20
2018	2018-02-03	2018-12-13
2019	2019-02-22	2019-10-30
2020	2020-01-16	2020-12-12
2021	2021-01-07	2021-12-29
2022	2022-01-20	2022-12-13
2023	2023-01-22	2023-12-22
2024	2024-01-10	2024-11-30
2025	2025-01-02	2025-12-23
2026	2026-01-16	2026-06-19

Every Fixed Threshold

Fixed thresholds at Perola 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	107	39	1956	7
25 mm (0.98 in): Days with 25 mm or more rain	105	18	1956	3
50 mm (1.97 in): Days with 50 mm or more rain	67	7	1924	1
100 mm (3.94 in): Days with 100 mm or more rain	12	1	1921	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1971	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1917.

Download the Data

Data for Perola 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Perola Park Threshold Days by Year (ASN00044062)

Key Facts for Perola Park Thresholds

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

Every Fixed Threshold

Download the Data

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