The Dalles Threshold Days by Year (USC00358407)

20 fixed thresholds counted per year at The Dalles (USC00358407): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for The Dalles Thresholds

The Dalles: days with a maximum temperature at or above 30 C (86 F) in 106 years, most in 1923 with 95.
The Dalles: days with a maximum temperature at or above 35 C (95 F) in 106 years, most in 1958 with 48.
The Dalles: days with a maximum temperature at or above 90 F (32.2 C) in 106 years, most in 1958 with 76.
The Dalles: days with 10 mm (0.39 in) or more of precipitation in 104 years, most in 1995 with 24.
20 fixed thresholds have at least one qualifying day at The Dalles.

Days at or above 30 C (86 F)

106 years with a qualifying day

Days per year at The Dalles with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 95 in 1923.

Days at or above 30 C (86 F) per year at The Dalles
Year	Days	Decade average
1893	28	42.9
1894	46	42.9
1895	35	42.9
1896	52	42.9
1897	53	42.9
1898	51	42.9
1899	35	42.9
1900	33	44.1
1901	37	44.1
1902	49	44.1
1903	28	44.1
1904	58	44.1
1905	44	44.1
1906	59	44.1
1907	41	44.1
1908	56	44.1
1909	36	44.1
1910	40	55.1
1911	35	55.1
1914	75	55.1
1915	64	55.1
1916	37	55.1
1917	67	55.1
1918	63	55.1
1919	60	55.1
1920	59	71.2
1921	74	71.2
1922	75	71.2
1923	95	71.2
1924	92	71.2
1925	66	71.2
1926	82	71.2
1927	48	71.2
1928	65	71.2
1929	56	71.2
1930	59	57.4
1931	56	57.4
1932	57	57.4
1933	50	57.4
1934	60	57.4
1935	50	57.4
1936	61	57.4
1937	49	57.4
1938	70	57.4
1939	62	57.4
1940	71	55.9
1941	48	55.9
1942	47	55.9
1943	53	55.9
1945	74	55.9
1946	50	55.9
1947	50	55.9
1948	49	55.9
1949	61	55.9
1950	72	62.1
1951	75	62.1
1952	72	62.1
1953	44	62.1
1954	33	62.1
1955	52	62.1
1956	64	62.1
1957	69	62.1
1958	90	62.1
1959	50	62.1
1960	70	58.3
1961	67	58.3
1962	53	58.3
1963	58	58.3
1964	39	58.3
1965	59	58.3
1966	62	58.3
1975	54	59.4
1976	57	59.4
1977	65	59.4
1978	50	59.4
1979	71	59.4
1980	54	61
1981	59	61
1982	62	61
1983	47	61
1984	57	61
1985	65	61
1986	72	61
1987	76	61
1988	65	61
1989	53	61
1990	67	62.6
1991	66	62.6
1992	75	62.6
1993	50	62.6
1994	77	62.6
1995	49	62.6
1996	51	62.6
1997	66	62.6
2007	50	50
2010	41	52.5
2011	45	52.5
2012	55	52.5
2013	67	52.5
2018	57	52.5
2019	50	52.5
2020	64	65
2021	88	65
2022	84	65
2023	82	65
2025	7	65

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

First to last qualifying date each year at The Dalles
Year	First date	Last date
1893	1893-06-05	1893-09-01
1894	1894-05-23	1894-08-28
1895	1895-05-12	1895-08-29
1896	1896-05-28	1896-09-06
1897	1897-04-17	1897-09-25
1898	1898-05-25	1898-09-18
1899	1899-06-09	1899-09-26
1900	1900-04-29	1900-09-12
1901	1901-05-25	1901-08-30
1902	1902-05-25	1902-09-11
1903	1903-05-30	1903-08-28
1904	1904-05-21	1904-09-16
1905	1905-05-26	1905-09-23
1906	1906-04-20	1906-09-20
1907	1907-05-15	1907-09-10
1908	1908-06-07	1908-09-13
1909	1909-05-31	1909-09-16
1910	1910-04-23	1910-09-19
1911	1911-05-30	1911-09-01
1914	1914-05-01	1914-09-24
1915	1915-04-16	1915-09-20
1916	1916-05-02	1916-09-21
1917	1917-06-14	1917-10-05
1918	1918-06-04	1918-09-28
1919	1919-05-20	1919-09-26
1920	1920-05-07	1920-09-17
1921	1921-05-24	1921-10-07
1922	1922-05-15	1922-09-21
1923	1923-04-26	1923-10-03
1924	1924-04-27	1924-09-16
1925	1925-05-05	1925-09-22
1926	1926-04-15	1926-09-10
1927	1927-05-14	1927-08-26
1928	1928-05-10	1928-09-24
1929	1929-05-19	1929-09-16
1930	1930-06-05	1930-09-21
1931	1931-04-28	1931-09-05
1932	1932-06-10	1932-10-01
1933	1933-05-28	1933-08-27
1934	1934-04-19	1934-10-10
1935	1935-05-20	1935-10-01
1936	1936-04-15	1936-09-29
1937	1937-05-01	1937-09-15
1938	1938-05-15	1938-09-22
1939	1939-05-07	1939-09-26
1940	1940-05-09	1940-09-25
1941	1941-05-22	1941-08-21
1942	1942-05-21	1942-10-10
1943	1943-04-13	1943-10-08
1945	1945-05-01	1945-10-08
1946	1946-04-24	1946-09-10
1947	1947-04-13	1947-09-24
1948	1948-05-24	1948-09-13
1949	1949-05-08	1949-09-28
1950	1950-05-12	1950-09-24
1951	1951-05-17	1951-09-22
1952	1952-04-25	1952-10-07
1953	1953-05-04	1953-09-22
1954	1954-05-08	1954-09-27
1955	1955-05-19	1955-09-10
1956	1956-04-20	1956-09-26
1957	1957-04-29	1957-09-25
1958	1958-05-16	1958-10-06
1959	1959-05-14	1959-09-13
1960	1960-05-12	1960-10-06
1961	1961-05-19	1961-09-05
1962	1962-06-08	1962-09-26
1963	1963-05-18	1963-09-29
1964	1964-05-31	1964-09-25
1965	1965-05-11	1965-10-08
1966	1966-05-03	1966-09-30
1975	1975-05-14	1975-09-23
1976	1976-05-09	1976-10-02
1977	1977-04-08	1977-09-14
1978	1978-05-20	1978-09-27
1979	1979-05-15	1979-10-06
1980	1980-04-28	1980-10-08
1981	1981-05-01	1981-09-19
1982	1982-05-22	1982-09-19
1983	1983-05-21	1983-08-28
1984	1984-05-29	1984-09-19
1985	1985-05-16	1985-09-04
1986	1986-04-21	1986-10-08
1987	1987-04-28	1987-10-08
1988	1988-05-12	1988-10-09
1989	1989-05-06	1989-09-29
1990	1990-05-05	1990-09-30
1991	1991-06-10	1991-10-16
1992	1992-05-05	1992-10-02
1993	1993-05-11	1993-10-04
1994	1994-04-18	1994-09-28
1995	1995-05-16	1995-09-20
1996	1996-05-26	1996-09-30
1997	1997-05-10	1997-09-26
2007	2007-05-08	2007-09-14
2010	2010-06-13	2010-09-28
2011	2011-06-05	2011-09-25
2012	2012-04-23	2012-10-02
2013	2013-05-07	2013-09-15
2018	2018-05-09	2018-09-28
2019	2019-05-12	2019-09-08
2020	2020-05-10	2020-10-08
2021	2021-04-19	2021-09-26
2022	2022-06-03	2022-10-14
2023	2023-04-30	2023-10-06
2025	2025-05-25	2025-07-18

Every Fixed Threshold

Fixed thresholds at The Dalles
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	106	95	1923	7
35 C (95 F): Days	106	48	1958	2
40 C (104 F): Days	65	14	2021	3
45 C (113 F): Days	3	1	1928	1
90 F (32.2 C): Days	106	76	1958	6
100 F (37.8 C): Days	99	27	2021	1
110 F (43.3 C): Days	11	3	1928	3
0 C (32 F): Ice days (max	95	43	1985	1
0 C (32 F): Frost days (min	102	130	1916	18
-10 C (14 F): Days with min	73	29	1916	2
-20 C (-4 F): Days with min	16	4	1909	1
20 C (68 F): Tropical nights (min	88	20	1958	4
25 C (77 F): Days with min	4	2	1941	1
10 mm (0.39 in): Days with 10 mm or more rain	104	24	1995	6
25 mm (0.98 in): Days with 25 mm or more rain	60	5	1928	2
50 mm (1.97 in): Days with 50 mm or more rain	7	3	1921	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1921	1
10 cm (3.9 in): Days with 10 cm or more snowfall	46	10	1950	1
25 cm (9.8 in): Days with 25 cm or more snowfall	10	3	1921	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1921	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1893.

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Data for The Dalles 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).

The Dalles Threshold Days by Year (USC00358407)

Key Facts for The Dalles Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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