Orford South Threshold Days by Year (ASN00092028)

4 fixed thresholds counted per year at Orford South (ASN00092028): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Orford South Thresholds

Orford South: days with 10 mm (0.39 in) or more of precipitation in 75 years, most in 1974 with 36.
Orford South: days with 25 mm (0.98 in) or more of precipitation in 71 years, most in 1974 with 13.
Orford South: days with 50 mm (1.97 in) or more of precipitation in 39 years, most in 1969 with 5.
Orford South: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1954 with 1.
4 fixed thresholds have at least one qualifying day at Orford South.

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

75 years with a qualifying day

Days per year at Orford South with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 36 in 1974.

Days with 10 mm (0.39 in) or more of precipitation per year at Orford South
Year	Days	Decade average
1933	9	14.7
1934	15	14.7
1935	18	14.7
1936	7	14.7
1937	15	14.7
1938	18	14.7
1939	21	14.7
1940	6	14.4
1946	15	14.4
1947	24	14.4
1948	9	14.4
1949	18	14.4
1950	17	18.3
1951	15	18.3
1952	29	18.3
1953	18	18.3
1954	15	18.3
1955	13	18.3
1956	30	18.3
1957	14	18.3
1958	20	18.3
1959	12	18.3
1960	15	13.5
1961	14	13.5
1962	8	13.5
1963	9	13.5
1964	18	13.5
1965	12	13.5
1966	14	13.5
1967	14	13.5
1968	12	13.5
1969	19	13.5
1970	22	20.4
1971	20	20.4
1972	11	20.4
1973	22	20.4
1974	36	20.4
1975	17	20.4
1976	27	20.4
1977	17	20.4
1978	19	20.4
1979	13	20.4
1980	11	13.1
1981	13	13.1
1982	11	13.1
1983	13	13.1
1984	15	13.1
1987	11	13.1
1988	14	13.1
1989	17	13.1
1990	16	12.5
1991	10	12.5
1992	10	12.5
1993	16	12.5
1994	7	12.5
1995	18	12.5
1996	12	12.5
1997	11	12.5
2000	13	12.7
2001	20	12.7
2002	9	12.7
2004	13	12.7
2006	6	12.7
2008	7	12.7
2009	21	12.7
2013	16	13
2016	20	13
2017	9	13
2018	10	13
2019	10	13
2021	22	12.8
2023	14	12.8
2024	10	12.8
2025	12	12.8
2026	6	12.8

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

First to last qualifying date each year at Orford South
Year	First date	Last date
1933	1933-02-21	1933-11-30
1934	1934-01-09	1934-12-31
1935	1935-02-02	1935-12-03
1936	1936-01-22	1936-12-21
1937	1937-01-26	1937-12-26
1938	1938-01-03	1938-11-28
1939	1939-02-17	1939-11-25
1940	1940-03-20	1940-12-03
1946	1946-02-19	1946-11-27
1947	1947-01-24	1947-12-22
1948	1948-02-17	1948-11-09
1949	1949-01-16	1949-12-20
1950	1950-03-13	1950-12-20
1951	1951-01-13	1951-12-19
1952	1952-01-07	1952-11-27
1953	1953-01-06	1953-12-08
1954	1954-01-28	1954-11-21
1955	1955-04-15	1955-12-28
1956	1956-01-01	1956-12-07
1957	1957-02-08	1957-11-26
1958	1958-02-01	1958-12-17
1959	1959-01-07	1959-12-19
1960	1960-01-09	1960-11-18
1961	1961-02-26	1961-12-19
1962	1962-01-10	1962-09-29
1963	1963-01-17	1963-11-08
1964	1964-02-01	1964-12-25
1965	1965-01-11	1965-12-02
1966	1966-02-05	1966-12-15
1967	1967-05-27	1967-12-19
1968	1968-02-27	1968-12-24
1969	1969-02-07	1969-12-13
1970	1970-01-03	1970-12-31
1971	1971-01-01	1971-12-21
1972	1972-01-10	1972-11-07
1973	1973-01-24	1973-12-22
1974	1974-02-02	1974-12-28
1975	1975-01-11	1975-11-24
1976	1976-01-15	1976-12-24
1977	1977-01-17	1977-11-30
1978	1978-01-30	1978-12-27
1979	1979-01-06	1979-12-31
1980	1980-02-21	1980-12-29
1981	1981-01-19	1981-12-14
1982	1982-01-07	1982-12-09
1983	1983-01-27	1983-10-17
1984	1984-02-01	1984-12-26
1987	1987-01-05	1987-12-07
1988	1988-01-31	1988-12-27
1989	1989-01-05	1989-11-30
1990	1990-01-04	1990-12-28
1991	1991-01-24	1991-12-16
1992	1992-02-12	1992-11-01
1993	1993-01-25	1993-12-29
1994	1994-02-01	1994-11-21
1995	1995-01-06	1995-12-20
1996	1996-01-01	1996-11-22
1997	1997-01-22	1997-11-01
2000	2000-01-05	2000-10-26
2001	2001-03-17	2001-12-21
2002	2002-01-07	2002-10-14
2004	2004-01-30	2004-11-06
2006	2006-02-10	2006-12-26
2008	2008-02-23	2008-12-19
2009	2009-02-02	2009-12-18
2013	2013-02-01	2013-12-23
2016	2016-01-29	2016-12-30
2017	2017-01-20	2017-12-08
2018	2018-01-30	2018-12-16
2019	2019-01-31	2019-11-30
2021	2021-01-15	2021-11-19
2023	2023-01-03	2023-12-20
2024	2024-01-18	2024-12-01
2025	2025-01-12	2025-11-08
2026	2026-01-22	2026-08-26

Every Fixed Threshold

Fixed thresholds at Orford South
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	75	36	1974	6
25 mm (0.98 in): Days with 25 mm or more rain	71	13	1974	3
50 mm (1.97 in): Days with 50 mm or more rain	39	5	1969	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1954	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1933.

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Data for Orford South 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).

Orford South Threshold Days by Year (ASN00092028)

Key Facts for Orford South Thresholds

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

Every Fixed Threshold

Download the Data

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