Sonnblick Threshold Days by Year (AU000015410)

9 fixed thresholds counted per year at Sonnblick (AU000015410): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sonnblick Thresholds

Sonnblick: days with a maximum temperature at or below 0 C (32 F) in 138 years, most in 1913 with 299.
Sonnblick: nights with a minimum temperature at or below 0 C (32 F) in 138 years, most in 1898 with 354.
Sonnblick: nights with a minimum temperature at or below -10 C (14 F) in 138 years, most in 1919 with 184.
Sonnblick: nights with a minimum temperature at or below -20 C (-4 F) in 138 years, most in 1889 with 48.
9 fixed thresholds have at least one qualifying day at Sonnblick.

Nights at or below 0 C (32 F)

138 years with a qualifying day

Days per year at Sonnblick with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 354 in 1898.

Nights at or below 0 C (32 F) per year at Sonnblick
Year	Days	Decade average
1887	327	336.7
1888	341	336.7
1889	342	336.7
1890	338	337.1
1891	338	337.1
1892	329	337.1
1893	337	337.1
1894	336	337.1
1895	320	337.1
1896	346	337.1
1897	331	337.1
1898	354	337.1
1899	342	337.1
1900	311	326.3
1901	330	326.3
1902	330	326.3
1903	331	326.3
1904	325	326.3
1905	321	326.3
1906	318	326.3
1907	320	326.3
1908	338	326.3
1909	339	326.3
1910	351	339.9
1911	316	339.9
1912	351	339.9
1913	353	339.9
1914	339	339.9
1915	342	339.9
1916	350	339.9
1917	329	339.9
1918	334	339.9
1919	334	339.9
1920	327	324.5
1921	305	324.5
1922	329	324.5
1923	327	324.5
1924	335	324.5
1925	349	324.5
1926	325	324.5
1927	325	324.5
1928	312	324.5
1929	311	324.5
1930	320	322.9
1931	317	322.9
1932	304	322.9
1933	336	322.9
1934	335	322.9
1935	323	322.9
1936	325	322.9
1937	324	322.9
1938	315	322.9
1939	330	322.9
1940	339	320.5
1941	327	320.5
1942	304	320.5
1943	315	320.5
1944	328	320.5
1945	310	320.5
1946	319	320.5
1947	309	320.5
1948	330	320.5
1949	324	320.5
1950	301	322.3
1951	314	322.3
1952	322	322.3
1953	321	322.3
1954	332	322.3
1955	343	322.3
1956	321	322.3
1957	329	322.3
1958	317	322.3
1959	323	322.3
1960	345	323.8
1961	316	323.8
1962	315	323.8
1963	325	323.8
1964	320	323.8
1965	329	323.8
1966	328	323.8
1967	305	323.8
1968	339	323.8
1969	316	323.8
1970	318	323.2
1971	318	323.2
1972	337	323.2
1973	307	323.2
1974	328	323.2
1975	314	323.2
1976	334	323.2
1977	329	323.2
1978	332	323.2
1979	315	323.2
1980	327	313.7
1981	323	313.7
1982	295	313.7
1983	297	313.7
1984	339	313.7
1985	308	313.7
1986	301	313.7
1987	310	313.7
1988	317	313.7
1989	320	313.7
1990	321	310.1
1991	302	310.1
1992	303	310.1
1993	311	310.1
1994	289	310.1
1995	303	310.1
1996	329	310.1
1997	325	310.1
1998	313	310.1
1999	305	310.1
2000	313	299
2001	319	299
2002	304	299
2003	273	299
2004	306	299
2005	305	299
2006	288	299
2007	301	299
2008	294	299
2009	287	299
2010	300	291.4
2011	282	291.4
2012	282	291.4
2013	306	291.4
2014	313	291.4
2015	291	291.4
2016	297	291.4
2017	293	291.4
2018	277	291.4
2019	273	291.4
2020	300	264
2021	300	264
2023	271	264
2025	281	264
2026	168	264

For each year, a bar from the first to the last day at Sonnblick meeting 0 C (32 F).

First to last qualifying date each year at Sonnblick
Year	First date	Last date
1887	1887-01-01	1887-12-31
1888	1888-01-01	1888-12-31
1889	1889-01-01	1889-12-31
1890	1890-01-01	1890-12-31
1891	1891-01-01	1891-12-31
1892	1892-01-01	1892-12-31
1893	1893-01-01	1893-12-31
1894	1894-01-01	1894-12-31
1895	1895-01-01	1895-12-31
1896	1896-01-01	1896-12-31
1897	1897-01-01	1897-12-31
1898	1898-01-01	1898-12-31
1899	1899-01-01	1899-12-31
1900	1900-01-01	1900-12-31
1901	1901-01-01	1901-12-31
1902	1902-01-01	1902-12-31
1903	1903-01-01	1903-12-31
1904	1904-01-01	1904-12-31
1905	1905-01-01	1905-12-31
1906	1906-01-01	1906-12-31
1907	1907-01-01	1907-12-31
1908	1908-01-01	1908-12-31
1909	1909-01-01	1909-12-31
1910	1910-01-01	1910-12-31
1911	1911-01-01	1911-12-31
1912	1912-01-01	1912-12-31
1913	1913-01-01	1913-12-31
1914	1914-01-01	1914-12-31
1915	1915-01-01	1915-12-31
1916	1916-01-01	1916-12-31
1917	1917-01-01	1917-12-31
1918	1918-01-01	1918-12-31
1919	1919-01-01	1919-12-31
1920	1920-01-01	1920-12-31
1921	1921-01-01	1921-12-31
1922	1922-01-01	1922-12-31
1923	1923-01-01	1923-12-31
1924	1924-01-01	1924-12-31
1925	1925-01-01	1925-12-31
1926	1926-01-01	1926-12-31
1927	1927-01-01	1927-12-31
1928	1928-01-01	1928-12-31
1929	1929-01-01	1929-12-31
1930	1930-01-01	1930-12-31
1931	1931-01-01	1931-12-31
1932	1932-01-01	1932-12-31
1933	1933-01-01	1933-12-31
1934	1934-01-01	1934-12-31
1935	1935-01-01	1935-12-31
1936	1936-01-01	1936-12-31
1937	1937-01-01	1937-12-31
1938	1938-01-01	1938-12-31
1939	1939-01-01	1939-12-31
1940	1940-01-01	1940-12-31
1941	1941-01-01	1941-12-31
1942	1942-01-01	1942-12-31
1943	1943-01-01	1943-12-31
1944	1944-01-01	1944-12-31
1945	1945-01-01	1945-12-31
1946	1946-01-01	1946-12-31
1947	1947-01-01	1947-12-31
1948	1948-01-01	1948-12-31
1949	1949-01-01	1949-12-31
1950	1950-01-01	1950-12-31
1951	1951-01-01	1951-12-31
1952	1952-01-01	1952-12-31
1953	1953-01-01	1953-12-31
1954	1954-01-01	1954-12-31
1955	1955-01-01	1955-12-31
1956	1956-01-01	1956-12-31
1957	1957-01-01	1957-12-31
1958	1958-01-01	1958-12-31
1959	1959-01-01	1959-12-31
1960	1960-01-01	1960-12-31
1961	1961-01-01	1961-12-31
1962	1962-01-01	1962-12-31
1963	1963-01-01	1963-12-31
1964	1964-01-01	1964-12-31
1965	1965-01-01	1965-12-31
1966	1966-01-01	1966-12-31
1967	1967-01-01	1967-12-31
1968	1968-01-01	1968-12-31
1969	1969-01-01	1969-12-31
1970	1970-01-01	1970-12-31
1971	1971-01-01	1971-12-31
1972	1972-01-01	1972-12-31
1973	1973-01-01	1973-12-31
1974	1974-01-01	1974-12-31
1975	1975-01-01	1975-12-31
1976	1976-01-01	1976-12-31
1977	1977-01-01	1977-12-31
1978	1978-01-01	1978-12-31
1979	1979-01-01	1979-12-31
1980	1980-01-01	1980-12-31
1981	1981-01-01	1981-12-31
1982	1982-01-01	1982-12-31
1983	1983-01-01	1983-12-31
1984	1984-01-01	1984-12-31
1985	1985-01-01	1985-12-31
1986	1986-01-01	1986-12-31
1987	1987-01-01	1987-12-31
1988	1988-01-01	1988-12-31
1989	1989-01-01	1989-12-31
1990	1990-01-01	1990-12-31
1991	1991-01-01	1991-12-31
1992	1992-01-01	1992-12-31
1993	1993-01-01	1993-12-31
1994	1994-01-01	1994-12-31
1995	1995-01-01	1995-12-31
1996	1996-01-01	1996-12-31
1997	1997-01-01	1997-12-31
1998	1998-01-01	1998-12-31
1999	1999-01-01	1999-12-31
2000	2000-01-01	2000-12-31
2001	2001-01-01	2001-12-31
2002	2002-01-01	2002-12-31
2003	2003-01-01	2003-12-31
2004	2004-01-01	2004-12-31
2005	2005-01-01	2005-12-31
2006	2006-01-01	2006-12-31
2007	2007-01-01	2007-12-31
2008	2008-01-01	2008-12-31
2009	2009-01-01	2009-12-31
2010	2010-01-01	2010-12-31
2011	2011-01-01	2011-12-31
2012	2012-01-01	2012-12-31
2013	2013-01-01	2013-12-31
2014	2014-01-01	2014-12-31
2015	2015-01-01	2015-12-31
2016	2016-01-01	2016-12-31
2017	2017-01-01	2017-12-31
2018	2018-01-01	2018-12-31
2019	2019-01-01	2019-12-31
2020	2020-01-01	2020-12-31
2021	2021-01-01	2021-12-31
2023	2023-01-01	2023-12-31
2025	2025-01-01	2025-12-31
2026	2026-01-01	2026-08-22

Every Fixed Threshold

Fixed thresholds at Sonnblick
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
0 C (32 F): Ice days (max	138	299	1913	130
0 C (32 F): Frost days (min	138	354	1898	168
-10 C (14 F): Days with min	138	184	1919	73
-20 C (-4 F): Days with min	138	48	1889	6
-30 C (-22 F): Days with min	41	7	1891	2
10 mm (0.39 in): Days with 10 mm or more rain	117	115	1997	36
25 mm (0.98 in): Days with 25 mm or more rain	117	44	1997	3
50 mm (1.97 in): Days with 50 mm or more rain	30	8	1997	3
100 mm (3.94 in): Days with 100 mm or more rain	4	2	1986	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1887.

Download the Data

Data for Sonnblick 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).

Sonnblick Threshold Days by Year (AU000015410)

Key Facts for Sonnblick Thresholds

Nights at or below 0 C (32 F)

Every Fixed Threshold

Download the Data

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