Boras Threshold Days by Year (SWE00138226)

12 fixed thresholds counted per year at Boras (SWE00138226): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Boras Thresholds

Boras: nights with a minimum temperature at or below 0 C (32 F) in 143 years, most in 1888 with 191.
Boras: days with 10 mm (0.39 in) or more of precipitation in 143 years, most in 2007 with 59.
Boras: days with a maximum temperature at or below 0 C (32 F) in 141 years, most in 2010 with 93.
Boras: nights with a minimum temperature at or below -10 C (14 F) in 140 years, most in 1942 with 70.
12 fixed thresholds have at least one qualifying day at Boras.

Days at or above 30 C (86 F)

76 years with a qualifying day

Days per year at Boras with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 16 in 1901.

Days at or above 30 C (86 F) per year at Boras
Year	Days	Decade average
1885	2	4.8
1886	2	4.8
1887	2	4.8
1888	6	4.8
1889	12	4.8
1891	2	6.4
1892	2	6.4
1893	4	6.4
1894	7	6.4
1896	13	6.4
1897	7	6.4
1899	10	6.4
1900	7	5.5
1901	16	5.5
1902	2	5.5
1903	1	5.5
1904	6	5.5
1905	6	5.5
1906	10	5.5
1907	1	5.5
1908	5	5.5
1909	1	5.5
1910	6	4.7
1911	6	4.7
1912	1	4.7
1914	8	4.7
1915	1	4.7
1917	6	4.7
1923	3	5
1925	7	5
1930	1	1.9
1932	1	1.9
1933	2	1.9
1934	1	1.9
1935	4	1.9
1936	3	1.9
1939	1	1.9
1941	11	4.4
1942	1	4.4
1943	1	4.4
1944	4	4.4
1945	1	4.4
1946	4	4.4
1947	9	4.4
1948	4	4.4
1964	1	2.7
1968	2	2.7
1969	5	2.7
1970	1	2.5
1973	1	2.5
1975	7	2.5
1979	1	2.5
1982	6	3.5
1989	1	3.5
1991	2	2.4
1992	1	2.4
1994	6	2.4
1997	2	2.4
1999	1	2.4
2000	1	2
2001	2	2
2002	1	2
2006	4	2
2007	2	2
2008	2	2
2010	3	3.2
2014	1	3.2
2015	1	3.2
2018	8	3.2
2019	3	3.2
2020	2	2.7
2021	3	2.7
2022	5	2.7
2024	1	2.7
2025	1	2.7
2026	4	2.7

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

First to last qualifying date each year at Boras
Year	First date	Last date
1885	1885-07-11	1885-07-12
1886	1886-05-21	1886-07-20
1887	1887-07-14	1887-08-29
1888	1888-06-23	1888-06-28
1889	1889-05-25	1889-06-30
1891	1891-06-25	1891-06-26
1892	1892-08-24	1892-08-25
1893	1893-07-06	1893-07-11
1894	1894-06-29	1894-07-07
1896	1896-06-11	1896-07-17
1897	1897-05-31	1897-08-06
1899	1899-06-17	1899-08-14
1900	1900-06-04	1900-07-22
1901	1901-05-27	1901-08-14
1902	1902-05-31	1902-06-27
1903	1903-06-01	1903-06-01
1904	1904-07-16	1904-08-05
1905	1905-06-18	1905-07-02
1906	1906-06-18	1906-09-02
1907	1907-05-14	1907-05-14
1908	1908-06-28	1908-08-07
1909	1909-06-17	1909-06-17
1910	1910-06-10	1910-07-14
1911	1911-07-14	1911-08-13
1912	1912-07-15	1912-07-15
1914	1914-07-02	1914-07-22
1915	1915-06-10	1915-06-10
1917	1917-06-16	1917-08-02
1923	1923-07-08	1923-07-12
1925	1925-07-20	1925-07-26
1930	1930-07-03	1930-07-03
1932	1932-07-12	1932-07-12
1933	1933-07-08	1933-07-09
1934	1934-07-19	1934-07-19
1935	1935-06-23	1935-07-12
1936	1936-06-19	1936-06-30
1939	1939-08-06	1939-08-06
1941	1941-06-23	1941-08-01
1942	1942-07-06	1942-07-06
1943	1943-08-01	1943-08-01
1944	1944-07-06	1944-07-09
1945	1945-07-16	1945-07-16
1946	1946-05-29	1946-07-05
1947	1947-06-28	1947-08-26
1948	1948-07-29	1948-08-01
1964	1964-06-14	1964-06-14
1968	1968-06-17	1968-07-02
1969	1969-07-29	1969-08-06
1970	1970-06-19	1970-06-19
1973	1973-07-06	1973-07-06
1975	1975-08-05	1975-08-11
1979	1979-06-01	1979-06-01
1982	1982-08-02	1982-08-07
1989	1989-07-08	1989-07-08
1991	1991-07-06	1991-07-08
1992	1992-08-10	1992-08-10
1994	1994-07-13	1994-07-28
1997	1997-06-30	1997-07-01
1999	1999-07-12	1999-07-12
2000	2000-06-21	2000-06-21
2001	2001-07-07	2001-08-16
2002	2002-07-10	2002-07-10
2006	2006-07-05	2006-07-27
2007	2007-06-09	2007-06-10
2008	2008-07-27	2008-07-28
2010	2010-07-03	2010-07-12
2014	2014-07-25	2014-07-25
2015	2015-07-05	2015-07-05
2018	2018-07-16	2018-08-08
2019	2019-06-30	2019-07-26
2020	2020-06-26	2020-06-27
2021	2021-06-19	2021-07-15
2022	2022-06-25	2022-07-21
2024	2024-06-27	2024-06-27
2025	2025-07-19	2025-07-19
2026	2026-06-27	2026-07-30

Every Fixed Threshold

Fixed thresholds at Boras
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	76	16	1901	4
35 C (95 F): Days	3	2	1901	2
90 F (32.2 C): Days	21	7	1901	1
0 C (32 F): Ice days (max	141	93	2010	41
0 C (32 F): Frost days (min	143	191	1888	81
-10 C (14 F): Days with min	140	70	1942	12
-20 C (-4 F): Days with min	77	16	1893	1
-30 C (-22 F): Days with min	4	3	1893	2
20 C (68 F): Tropical nights (min	4	2	1941	1
10 mm (0.39 in): Days with 10 mm or more rain	143	59	2007	16
25 mm (0.98 in): Days with 25 mm or more rain	130	11	1935	1
50 mm (1.97 in): Days with 50 mm or more rain	10	1	1910	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1885.

Download the Data

Data for Boras 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).

Boras Threshold Days by Year (SWE00138226)

Key Facts for Boras Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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