Roseburg Threshold Days by Year

16 fixed thresholds counted per year at Roseburg (USC00357331): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Roseburg Thresholds

Roseburg: days with 10 mm (0.39 in) or more of precipitation in 51 years, most in 1996 with 50.
Roseburg: days with 25 mm (0.98 in) or more of precipitation in 51 years, most in 2012 with 11.
Roseburg: days with a maximum temperature at or above 30 C (86 F) in 48 years, most in 2017 with 84.
Roseburg: days with a maximum temperature at or above 90 F (32.2 C) in 48 years, most in 2014 with 62.
16 fixed thresholds have at least one qualifying day at Roseburg.

Days at or above 30 C (86 F)

48 years with a qualifying day

Days per year at Roseburg with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 84 in 2017.

Days at or above 30 C (86 F) per year at Roseburg
Year	Days	Decade average
1966	31	38.8
1967	65	38.8
1968	30	38.8
1969	29	38.8
1970	48	43.5
1971	38	43.5
1972	46	43.5
1973	47	43.5
1974	58	43.5
1975	47	43.5
1976	30	43.5
1977	47	43.5
1978	35	43.5
1979	39	43.5
1980	28	36.4
1981	36	36.4
1982	39	36.4
1983	13	36.4
1984	33	36.4
1985	45	36.4
1986	48	36.4
1987	51	36.4
1988	45	36.4
1989	26	36.4
1990	48	57.7
1991	68	57.7
1992	70	57.7
1993	35	57.7
1994	68	57.7
1995	55	57.7
1996	58	57.7
1997	58	57.7
1998	57	57.7
1999	60	57.7
2000	58	66.6
2001	67	66.6
2003	79	66.6
2004	71	66.6
2005	58	66.6
2008	68	66.6
2009	65	66.6
2010	51	68.6
2011	51	68.6
2012	65	68.6
2013	80	68.6
2014	80	68.6
2016	69	68.6
2017	84	68.6

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

First to last qualifying date each year at Roseburg
Year	First date	Last date
1966	1966-05-26	1966-10-05
1967	1967-05-17	1967-09-28
1968	1968-04-29	1968-09-07
1969	1969-05-08	1969-09-12
1970	1970-05-16	1970-10-03
1971	1971-05-12	1971-09-20
1972	1972-05-13	1972-09-15
1973	1973-05-14	1973-09-12
1974	1974-06-10	1974-10-16
1975	1975-05-13	1975-10-01
1976	1976-05-09	1976-10-07
1977	1977-06-05	1977-09-13
1978	1978-05-20	1978-09-25
1979	1979-05-25	1979-10-03
1980	1980-07-01	1980-10-07
1981	1981-06-29	1981-09-16
1982	1982-04-21	1982-09-23
1983	1983-05-23	1983-08-18
1984	1984-04-15	1984-10-08
1985	1985-05-23	1985-09-27
1986	1986-05-26	1986-09-07
1987	1987-04-27	1987-10-07
1988	1988-05-12	1988-09-15
1989	1989-06-02	1989-09-24
1990	1990-04-15	1990-09-29
1991	1991-06-10	1991-10-16
1992	1992-05-04	1992-10-01
1993	1993-05-24	1993-10-04
1994	1994-05-07	1994-10-09
1995	1995-05-29	1995-09-25
1996	1996-06-02	1996-10-10
1997	1997-05-10	1997-09-30
1998	1998-04-29	1998-09-23
1999	1999-04-16	1999-09-30
2000	2000-04-04	2000-10-07
2001	2001-05-07	2001-10-04
2003	2003-05-13	2003-10-20
2004	2004-04-09	2004-09-25
2005	2005-05-26	2005-09-30
2008	2008-04-13	2008-10-02
2009	2009-04-21	2009-09-24
2010	2010-06-25	2010-10-01
2011	2011-06-22	2011-09-30
2012	2012-04-23	2012-10-02
2013	2013-04-27	2013-09-20
2014	2014-05-01	2014-10-08
2016	2016-04-08	2016-09-27
2017	2017-05-04	2017-09-27

Every Fixed Threshold

Fixed thresholds at Roseburg
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	48	84	2017	84
35 C (95 F): Days	46	36	2003	27
40 C (104 F): Days	18	5	2003	4
90 F (32.2 C): Days	48	62	2014	52
100 F (37.8 C): Days	36	16	2003	7
110 F (43.3 C): Days	2	2	2017	2
0 C (32 F): Ice days (max	18	8	1972	3
0 C (32 F): Frost days (min	44	66	1985	33
-10 C (14 F): Days with min	7	6	1972	4
20 C (68 F): Tropical nights (min	6	1	1977	1
10 mm (0.39 in): Days with 10 mm or more rain	51	50	1996	24
25 mm (0.98 in): Days with 25 mm or more rain	51	11	2012	3
50 mm (1.97 in): Days with 50 mm or more rain	19	3	1996	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1996	1
10 cm (3.9 in): Days with 10 cm or more snowfall	3	3	1969	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	2	1969	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1966.

Download the Data

Data for Roseburg 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

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

Roseburg Threshold Days by Year

Key Facts for Roseburg Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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