Browns Valley Threshold Days by Year (USC00211063)

20 fixed thresholds counted per year at Browns Valley (USC00211063): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Browns Valley Thresholds

Browns Valley: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 2019 with 30.
Browns Valley: days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 1995 with 9.
Browns Valley: days with a maximum temperature at or above 30 C (86 F) in 47 years, most in 1976 with 75.
Browns Valley: days with a maximum temperature at or above 90 F (32.2 C) in 47 years, most in 1976 with 55.
20 fixed thresholds have at least one qualifying day at Browns Valley.

Days at or above 30 C (86 F)

47 years with a qualifying day

Days per year at Browns Valley with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 75 in 1976.

Days at or above 30 C (86 F) per year at Browns Valley
Year	Days	Decade average
1974	41	43
1975	39	43
1976	75	43
1977	34	43
1978	41	43
1979	28	43
1980	55	45.7
1981	32	45.7
1982	39	45.7
1983	58	45.7
1984	41	45.7
1985	29	45.7
1986	27	45.7
1987	55	45.7
1988	73	45.7
1989	48	45.7
1990	51	30.1
1991	40	30.1
1992	21	30.1
1993	9	30.1
1994	23	30.1
1995	30	30.1
1996	26	30.1
1997	35	30.1
1998	37	30.1
1999	29	30.1
2000	30	33.4
2001	47	33.4
2002	46	33.4
2003	48	33.4
2004	25	33.4
2005	38	33.4
2006	36	33.4
2007	32	33.4
2008	19	33.4
2009	13	33.4
2010	29	34.5
2011	28	34.5
2012	46	34.5
2015	39	34.5
2016	36	34.5
2017	32	34.5
2018	40	34.5
2019	26	34.5
2020	47	49
2021	60	49
2022	40	49

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

First to last qualifying date each year at Browns Valley
Year	First date	Last date
1974	1974-05-21	1974-10-11
1975	1975-06-21	1975-10-08
1976	1976-04-14	1976-10-04
1977	1977-04-10	1977-09-09
1978	1978-05-26	1978-09-12
1979	1979-05-29	1979-09-28
1980	1980-04-21	1980-10-10
1981	1981-05-03	1981-09-13
1982	1982-05-04	1982-09-11
1983	1983-06-11	1983-09-28
1984	1984-06-01	1984-09-22
1985	1985-04-18	1985-09-19
1986	1986-05-31	1986-08-19
1987	1987-04-17	1987-09-26
1988	1988-05-12	1988-09-17
1989	1989-06-06	1989-09-30
1990	1990-04-22	1990-10-06
1991	1991-04-06	1991-09-14
1992	1992-05-01	1992-10-03
1993	1993-06-11	1993-08-26
1994	1994-05-19	1994-09-12
1995	1995-06-14	1995-08-24
1996	1996-06-10	1996-10-12
1997	1997-05-17	1997-10-07
1998	1998-05-15	1998-09-19
1999	1999-05-30	1999-09-01
2000	2000-05-05	2000-09-19
2001	2001-04-29	2001-09-07
2002	2002-04-17	2002-09-17
2003	2003-04-14	2003-10-20
2004	2004-04-28	2004-09-19
2005	2005-06-08	2005-09-22
2006	2006-05-24	2006-10-02
2007	2007-05-14	2007-10-06
2008	2008-06-25	2008-09-02
2009	2009-04-24	2009-08-15
2010	2010-05-25	2010-10-09
2011	2011-05-31	2011-10-06
2012	2012-05-15	2012-09-16
2015	2015-05-03	2015-10-12
2016	2016-05-06	2016-08-30
2017	2017-05-14	2017-09-23
2018	2018-05-08	2018-09-17
2019	2019-05-31	2019-09-21
2020	2020-05-28	2020-09-03
2021	2021-05-02	2021-09-29
2022	2022-06-13	2022-09-21

Every Fixed Threshold

Fixed thresholds at Browns Valley
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	47	75	1976	40
35 C (95 F): Days	45	32	1976	7
40 C (104 F): Days	4	11	1988	1
90 F (32.2 C): Days	47	55	1976	16
100 F (37.8 C): Days	24	17	1988	2
110 F (43.3 C): Days	1	1	1988	1
0 C (32 F): Ice days (max	47	103	2019	84
0 C (32 F): Frost days (min	39	198	2018	185
-10 C (14 F): Days with min	39	113	1975	103
-20 C (-4 F): Days with min	39	54	1978	48
-30 C (-22 F): Days with min	27	11	1982	8
-40 C (-40 F): Days with min	1	1	1977	1
20 C (68 F): Tropical nights (min	38	33	1983	4
25 C (77 F): Days with min	10	7	1988	1
10 mm (0.39 in): Days with 10 mm or more rain	48	30	2019	18
25 mm (0.98 in): Days with 25 mm or more rain	48	9	1995	6
50 mm (1.97 in): Days with 50 mm or more rain	21	3	2006	2
100 mm (3.94 in): Days with 100 mm or more rain	1	1	2007	1
10 cm (3.9 in): Days with 10 cm or more snowfall	40	8	2001	3
25 cm (9.8 in): Days with 25 cm or more snowfall	7	1	1982	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1974.

Download the Data

Data for Browns Valley 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).

Browns Valley Threshold Days by Year (USC00211063)

Key Facts for Browns Valley Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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