Clatskanie Threshold Days by Year (USC00351643)

13 fixed thresholds counted per year at Clatskanie (USC00351643): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Clatskanie Thresholds

Clatskanie: nights with a minimum temperature at or below 0 C (32 F) in 90 years, most in 1985 with 100.
Clatskanie: days with 10 mm (0.39 in) or more of precipitation in 90 years, most in 1955 with 72.
Clatskanie: days with 25 mm (0.98 in) or more of precipitation in 90 years, most in 1937 with 22.
Clatskanie: days with a maximum temperature at or above 30 C (86 F) in 88 years, most in 1985 with 16.
13 fixed thresholds have at least one qualifying day at Clatskanie.

Days at or above 30 C (86 F)

88 years with a qualifying day

Days per year at Clatskanie with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 16 in 1985.

Days at or above 30 C (86 F) per year at Clatskanie
Year	Days	Decade average
1936	2	7.5
1937	5	7.5
1938	9	7.5
1939	14	7.5
1940	8	6.8
1941	9	6.8
1942	10	6.8
1943	5	6.8
1944	8	6.8
1945	6	6.8
1946	9	6.8
1947	2	6.8
1948	5	6.8
1949	6	6.8
1950	6	8
1951	9	8
1952	13	8
1953	6	8
1955	5	8
1956	8	8
1957	5	8
1958	15	8
1959	5	8
1960	6	6.4
1961	11	6.4
1962	1	6.4
1963	5	6.4
1964	2	6.4
1965	5	6.4
1966	4	6.4
1967	15	6.4
1968	8	6.4
1969	7	6.4
1970	8	6.8
1971	4	6.8
1972	14	6.8
1973	8	6.8
1974	9	6.8
1975	6	6.8
1976	1	6.8
1977	6	6.8
1978	8	6.8
1979	4	6.8
1980	2	9.9
1981	10	9.9
1982	4	9.9
1983	3	9.9
1984	4	9.9
1985	16	9.9
1986	15	9.9
1987	16	9.9
1988	16	9.9
1989	13	9.9
1990	11	9.1
1991	9	9.1
1992	14	9.1
1993	7	9.1
1994	7	9.1
1995	9	9.1
1996	16	9.1
1997	7	9.1
1998	7	9.1
1999	4	9.1
2000	4	8.9
2001	3	8.9
2002	9	8.9
2003	13	8.9
2004	7	8.9
2005	11	8.9
2006	14	8.9
2007	6	8.9
2008	9	8.9
2009	13	8.9
2010	4	8.2
2011	4	8.2
2012	6	8.2
2013	2	8.2
2014	11	8.2
2015	16	8.2
2016	10	8.2
2017	15	8.2
2018	8	8.2
2019	6	8.2
2020	11	12.6
2021	10	12.6
2022	12	12.6
2023	15	12.6
2024	15	12.6

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

First to last qualifying date each year at Clatskanie
Year	First date	Last date
1936	1936-08-20	1936-08-27
1937	1937-06-04	1937-09-14
1938	1938-05-23	1938-07-21
1939	1939-05-13	1939-08-20
1940	1940-06-11	1940-08-29
1941	1941-05-10	1941-08-07
1942	1942-06-29	1942-08-22
1943	1943-09-06	1943-09-23
1944	1944-06-09	1944-09-10
1945	1945-06-17	1945-08-21
1946	1946-05-02	1946-08-19
1947	1947-05-23	1947-09-01
1948	1948-06-06	1948-09-10
1949	1949-06-05	1949-09-08
1950	1950-06-03	1950-09-21
1951	1951-06-27	1951-09-13
1952	1952-05-17	1952-09-22
1953	1953-07-05	1953-09-04
1955	1955-06-07	1955-09-05
1956	1956-05-16	1956-09-05
1957	1957-04-29	1957-09-22
1958	1958-05-17	1958-09-07
1959	1959-07-17	1959-08-07
1960	1960-07-05	1960-08-08
1961	1961-05-19	1961-09-13
1962	1962-09-04	1962-09-04
1963	1963-05-19	1963-08-08
1964	1964-07-11	1964-08-22
1965	1965-07-23	1965-08-31
1966	1966-06-15	1966-09-04
1967	1967-07-01	1967-09-26
1968	1968-07-01	1968-09-06
1969	1969-05-07	1969-09-07
1970	1970-06-01	1970-08-11
1971	1971-05-11	1971-08-10
1972	1972-05-27	1972-09-02
1973	1973-05-13	1973-09-10
1974	1974-06-29	1974-09-24
1975	1975-05-13	1975-09-12
1976	1976-07-15	1976-07-15
1977	1977-06-05	1977-08-16
1978	1978-06-02	1978-08-08
1979	1979-06-01	1979-09-13
1980	1980-07-21	1980-09-09
1981	1981-07-02	1981-09-15
1982	1982-06-18	1982-09-02
1983	1983-05-23	1983-08-07
1984	1984-07-15	1984-07-24
1985	1985-05-17	1985-08-24
1986	1986-05-31	1986-09-07
1987	1987-04-27	1987-10-02
1988	1988-05-22	1988-09-14
1989	1989-06-04	1989-09-24
1990	1990-06-22	1990-09-05
1991	1991-07-03	1991-09-26
1992	1992-05-25	1992-08-27
1993	1993-05-25	1993-09-10
1994	1994-07-20	1994-09-23
1995	1995-06-29	1995-09-23
1996	1996-06-03	1996-08-25
1997	1997-05-12	1997-09-25
1998	1998-07-22	1998-09-01
1999	1999-05-24	1999-09-14
2000	2000-06-27	2000-07-31
2001	2001-05-23	2001-08-10
2002	2002-06-13	2002-08-29
2003	2003-06-05	2003-09-28
2004	2004-06-18	2004-08-10
2005	2005-05-27	2005-08-26
2006	2006-05-16	2006-09-03
2007	2007-07-11	2007-09-11
2008	2008-05-17	2008-09-16
2009	2009-07-03	2009-09-23
2010	2010-07-08	2010-08-25
2011	2011-08-21	2011-09-11
2012	2012-08-05	2012-09-18
2013	2013-06-30	2013-07-01
2014	2014-05-02	2014-09-16
2015	2015-06-28	2015-09-12
2016	2016-04-08	2016-08-27
2017	2017-05-23	2017-09-12
2018	2018-06-18	2018-09-06
2019	2019-05-11	2019-08-29
2020	2020-05-10	2020-09-11
2021	2021-06-02	2021-09-08
2022	2022-06-25	2022-08-31
2023	2023-04-29	2023-09-03
2024	2024-05-11	2024-09-06

Every Fixed Threshold

Fixed thresholds at Clatskanie
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	88	16	1985	15
35 C (95 F): Days	45	5	1988	4
90 F (32.2 C): Days	78	9	1985	8
100 F (37.8 C): Days	10	4	1981	1
0 C (32 F): Ice days (max	51	14	1950	4
0 C (32 F): Frost days (min	90	100	1985	46
-10 C (14 F): Days with min	32	11	1950	2
10 mm (0.39 in): Days with 10 mm or more rain	90	72	1955	13
25 mm (0.98 in): Days with 25 mm or more rain	90	22	1937	1
50 mm (1.97 in): Days with 50 mm or more rain	73	6	1937	1
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1936	1
10 cm (3.9 in): Days with 10 cm or more snowfall	26	8	1950	1
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 1936.

Download the Data

Data for Clatskanie 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).

Clatskanie Threshold Days by Year (USC00351643)

Key Facts for Clatskanie Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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