Black Rock Oregon Threshold Days by Year (USR0000OBLA)

10 fixed thresholds counted per year at Black Rock Oregon (USR0000OBLA): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Black Rock Oregon Thresholds

Black Rock Oregon: days with a maximum temperature at or above 30 C (86 F) in 37 years, most in 2021 with 54.
Black Rock Oregon: days with a maximum temperature at or above 90 F (32.2 C) in 37 years, most in 2021 with 37.
Black Rock Oregon: days with a maximum temperature at or below 0 C (32 F) in 37 years, most in 1993 with 55.
Black Rock Oregon: nights with a minimum temperature at or below 0 C (32 F) in 37 years, most in 1990 with 269.
10 fixed thresholds have at least one qualifying day at Black Rock Oregon.

Days at or above 30 C (86 F)

37 years with a qualifying day

Days per year at Black Rock Oregon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 54 in 2021.

Days at or above 30 C (86 F) per year at Black Rock Oregon
Year	Days	Decade average
1987	15	15
1990	27	18.7
1991	16	18.7
1992	21	18.7
1993	8	18.7
1994	15	18.7
1995	4	18.7
1996	28	18.7
1997	14	18.7
1998	36	18.7
1999	18	18.7
2000	20	33.2
2001	29	33.2
2002	33	33.2
2003	51	33.2
2004	28	33.2
2005	31	33.2
2006	34	33.2
2007	30	33.2
2009	43	33.2
2010	30	28.4
2011	19	28.4
2012	18	28.4
2013	29	28.4
2014	31	28.4
2015	28	28.4
2016	32	28.4
2017	47	28.4
2018	33	28.4
2019	17	28.4
2020	40	40.7
2021	54	40.7
2022	45	40.7
2023	28	40.7
2024	42	40.7
2025	40	40.7
2026	36	40.7

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

First to last qualifying date each year at Black Rock Oregon
Year	First date	Last date
1987	1987-06-03	1987-09-23
1990	1990-06-21	1990-09-10
1991	1991-07-02	1991-09-25
1992	1992-05-06	1992-09-21
1993	1993-08-01	1993-09-10
1994	1994-07-07	1994-09-27
1995	1995-07-16	1995-09-14
1996	1996-07-01	1996-10-08
1997	1997-05-11	1997-08-14
1998	1998-07-06	1998-09-15
1999	1999-06-14	1999-09-22
2000	2000-06-26	2000-09-18
2001	2001-05-22	2001-10-01
2002	2002-06-13	2002-09-23
2003	2003-05-23	2003-09-28
2004	2004-06-22	2004-08-30
2005	2005-07-14	2005-09-08
2006	2006-05-15	2006-09-12
2007	2007-07-03	2007-09-12
2009	2009-05-17	2009-09-26
2010	2010-07-07	2010-10-02
2011	2011-06-21	2011-09-23
2012	2012-07-07	2012-09-20
2013	2013-06-08	2013-09-14
2014	2014-07-01	2014-09-21
2015	2015-06-07	2015-09-12
2016	2016-06-04	2016-09-26
2017	2017-06-18	2017-09-11
2018	2018-06-24	2018-09-27
2019	2019-06-11	2019-09-04
2020	2020-05-28	2020-10-01
2021	2021-05-31	2021-09-08
2022	2022-06-25	2022-09-10
2023	2023-06-29	2023-09-16
2024	2024-06-06	2024-09-24
2025	2025-05-30	2025-09-24
2026	2026-06-15	2026-10-08

Every Fixed Threshold

Fixed thresholds at Black Rock Oregon
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	37	54	2021	36
35 C (95 F): Days	23	10	2024	3
40 C (104 F): Days	1	1	2002	1
90 F (32.2 C): Days	37	37	2021	13
100 F (37.8 C): Days	5	3	2002	1
0 C (32 F): Ice days (max	37	55	1993	1
0 C (32 F): Frost days (min	37	269	1990	84
-10 C (14 F): Days with min	37	87	1987	1
-20 C (-4 F): Days with min	9	10	1987	1
20 C (68 F): Tropical nights (min	1	1	1987	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1987.

Download the Data

Data for Black Rock Oregon 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Black Rock Oregon Threshold Days by Year (USR0000OBLA)

Key Facts for Black Rock Oregon Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related