Troutdale Threshold Days by Year (USC00358634)

17 fixed thresholds counted per year at Troutdale (USC00358634): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Troutdale Thresholds

Troutdale: days with a maximum temperature at or above 30 C (86 F) in 58 years, most in 1967 with 57.
Troutdale: days with a maximum temperature at or above 90 F (32.2 C) in 58 years, most in 1967 with 30.
Troutdale: nights with a minimum temperature at or below 0 C (32 F) in 55 years, most in 2005 with 69.
Troutdale: days with a maximum temperature at or above 35 C (95 F) in 52 years, most in 1988 with 13.
17 fixed thresholds have at least one qualifying day at Troutdale.

Days at or above 30 C (86 F)

58 years with a qualifying day

Days per year at Troutdale with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 57 in 1967.

Days at or above 30 C (86 F) per year at Troutdale
Year	Days	Decade average
1948	12	16
1949	20	16
1950	28	31.7
1951	30	31.7
1952	37	31.7
1960	17	25.8
1961	37	25.8
1962	20	25.8
1963	13	25.8
1964	9	25.8
1965	29	25.8
1966	24	25.8
1967	57	25.8
1968	24	25.8
1969	28	25.8
1970	37	29.5
1971	24	29.5
1972	33	29.5
1973	30	29.5
1974	38	29.5
1975	28	29.5
1976	18	29.5
1977	28	29.5
1978	27	29.5
1979	32	29.5
1987	47	36.7
1988	40	36.7
1989	23	36.7
1990	40	39
1991	43	39
1992	45	39
1993	23	39
1994	44	39
2000	25	33
2001	19	33
2002	35	33
2003	50	33
2005	36	33
2006	43	33
2007	29	33
2008	24	33
2009	36	33
2010	15	28.6
2011	16	28.6
2013	20	28.6
2014	30	28.6
2015	43	28.6
2016	28	28.6
2017	48	28.6
2018	35	28.6
2019	22	28.6
2020	28	29.4
2021	38	29.4
2022	34	29.4
2023	39	29.4
2024	29	29.4
2025	35	29.4
2026	3	29.4

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

First to last qualifying date each year at Troutdale
Year	First date	Last date
1948	1948-06-28	1948-09-12
1949	1949-05-11	1949-09-27
1950	1950-06-03	1950-09-21
1951	1951-05-22	1951-09-18
1952	1952-05-28	1952-10-03
1960	1960-07-06	1960-09-12
1961	1961-05-18	1961-08-29
1962	1962-06-24	1962-09-25
1963	1963-05-19	1963-09-27
1964	1964-07-12	1964-08-25
1965	1965-06-08	1965-09-25
1966	1966-05-05	1966-09-22
1967	1967-05-17	1967-09-29
1968	1968-06-19	1968-09-06
1969	1969-05-08	1969-09-12
1970	1970-05-16	1970-10-03
1971	1971-05-12	1971-08-29
1972	1972-05-28	1972-09-15
1973	1973-05-14	1973-09-11
1974	1974-06-11	1974-09-25
1975	1975-06-01	1975-09-23
1976	1976-05-10	1976-09-21
1977	1977-06-06	1977-09-13
1978	1978-06-03	1978-08-30
1979	1979-05-22	1979-09-19
1987	1987-04-27	1987-10-02
1988	1988-05-12	1988-10-02
1989	1989-06-02	1989-09-23
1990	1990-04-16	1990-09-23
1991	1991-06-10	1991-09-27
1992	1992-05-04	1992-09-23
1993	1993-05-18	1993-09-30
1994	1994-05-06	1994-09-27
2000	2000-06-04	2000-09-15
2001	2001-05-22	2001-09-23
2002	2002-06-13	2002-09-26
2003	2003-05-24	2003-09-28
2005	2005-05-27	2005-09-08
2006	2006-06-25	2006-09-25
2007	2007-05-16	2007-09-12
2008	2008-05-16	2008-09-17
2009	2009-05-19	2009-09-24
2010	2010-07-07	2010-09-04
2011	2011-07-06	2011-09-12
2013	2013-06-29	2013-09-12
2014	2014-05-02	2014-09-22
2015	2015-06-07	2015-09-13
2016	2016-05-04	2016-09-27
2017	2017-05-23	2017-09-14
2018	2018-05-14	2018-09-06
2019	2019-05-11	2019-09-06
2020	2020-05-29	2020-09-11
2021	2021-05-31	2021-09-10
2022	2022-06-26	2022-09-27
2023	2023-05-14	2023-09-19
2024	2024-05-11	2024-09-25
2025	2025-06-08	2025-09-16
2026	2026-05-03	2026-09-17

Every Fixed Threshold

Fixed thresholds at Troutdale
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	58	57	1967	3
35 C (95 F): Days	52	13	1988	9
40 C (104 F): Days	11	3	1977	1
90 F (32.2 C): Days	58	30	1967	1
100 F (37.8 C): Days	32	6	1977	2
110 F (43.3 C): Days	1	1	2021	1
0 C (32 F): Ice days (max	41	19	1950	1
0 C (32 F): Frost days (min	55	69	2005	3
-10 C (14 F): Days with min	18	16	1950	2
20 C (68 F): Tropical nights (min	10	3	2022	1
10 mm (0.39 in): Days with 10 mm or more rain	43	58	1968	17
25 mm (0.98 in): Days with 25 mm or more rain	42	11	1950	7
50 mm (1.97 in): Days with 50 mm or more rain	15	2	1960	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1994	1
10 cm (3.9 in): Days with 10 cm or more snowfall	12	3	1949	1
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1960	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	0	n/a	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1948.

Download the Data

Data for Troutdale 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).

Troutdale Threshold Days by Year (USC00358634)

Key Facts for Troutdale Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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