Green Bay Threshold Days by Year (USW00014898)

19 fixed thresholds counted per year at Green Bay (USW00014898): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Green Bay Thresholds

Green Bay: days with a maximum temperature at or above 30 C (86 F) in 140 years, most in 1988 with 48.
Green Bay: days with a maximum temperature at or below 0 C (32 F) in 140 years, most in 1978 with 101.
Green Bay: nights with a minimum temperature at or below 0 C (32 F) in 140 years, most in 1976 with 191.
Green Bay: nights with a minimum temperature at or below -10 C (14 F) in 140 years, most in 1893 with 89.
19 fixed thresholds have at least one qualifying day at Green Bay.

Days at or above 30 C (86 F)

140 years with a qualifying day

Days per year at Green Bay with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 48 in 1988.

Days at or above 30 C (86 F) per year at Green Bay
Year	Days	Decade average
1887	30	17.3
1888	14	17.3
1889	8	17.3
1890	20	21.9
1891	22	21.9
1892	12	21.9
1893	23	21.9
1894	35	21.9
1895	28	21.9
1896	24	21.9
1897	17	21.9
1898	20	21.9
1899	18	21.9
1900	25	15.1
1901	23	15.1
1902	10	15.1
1903	8	15.1
1904	5	15.1
1905	11	15.1
1906	20	15.1
1907	8	15.1
1908	22	15.1
1909	19	15.1
1910	35	17.8
1911	23	17.8
1912	11	17.8
1913	16	17.8
1914	15	17.8
1915	2	17.8
1916	26	17.8
1917	11	17.8
1918	13	17.8
1919	26	17.8
1920	12	14.7
1921	34	14.7
1922	11	14.7
1923	20	14.7
1924	5	14.7
1925	18	14.7
1926	7	14.7
1927	10	14.7
1928	11	14.7
1929	19	14.7
1930	27	27.4
1931	34	27.4
1932	23	27.4
1933	30	27.4
1934	25	27.4
1935	21	27.4
1936	29	27.4
1937	39	27.4
1938	15	27.4
1939	31	27.4
1940	14	21.8
1941	30	21.8
1942	12	21.8
1943	20	21.8
1944	24	21.8
1945	16	21.8
1946	16	21.8
1947	28	21.8
1948	28	21.8
1949	30	21.8
1950	11	18.6
1951	4	18.6
1952	25	18.6
1953	22	18.6
1954	18	18.6
1955	38	18.6
1956	8	18.6
1957	15	18.6
1958	14	18.6
1959	31	18.6
1960	9	17.1
1961	19	17.1
1962	11	17.1
1963	24	17.1
1964	27	17.1
1965	18	17.1
1966	22	17.1
1967	9	17.1
1968	16	17.1
1969	16	17.1
1970	34	23.1
1971	21	23.1
1972	26	23.1
1973	27	23.1
1974	11	23.1
1975	25	23.1
1976	38	23.1
1977	24	23.1
1978	14	23.1
1979	11	23.1
1980	16	20.1
1981	13	20.1
1982	6	20.1
1983	29	20.1
1984	11	20.1
1985	11	20.1
1986	13	20.1
1987	31	20.1
1988	48	20.1
1989	23	20.1
1990	15	18.3
1991	33	18.3
1992	10	18.3
1993	11	18.3
1994	19	18.3
1995	37	18.3
1996	10	18.3
1997	7	18.3
1998	17	18.3
1999	24	18.3
2000	3	16.5
2001	26	16.5
2002	21	16.5
2003	8	16.5
2004	5	16.5
2005	29	16.5
2006	20	16.5
2007	35	16.5
2008	12	16.5
2009	6	16.5
2010	18	20.3
2011	20	20.3
2012	38	20.3
2013	18	20.3
2014	7	20.3
2015	17	20.3
2016	23	20.3
2017	15	20.3
2018	28	20.3
2019	19	20.3
2020	29	24.9
2021	27	24.9
2022	28	24.9
2023	29	24.9
2024	25	24.9
2025	20	24.9
2026	16	24.9

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

First to last qualifying date each year at Green Bay
Year	First date	Last date
1887	1887-05-09	1887-08-08
1888	1888-06-15	1888-08-30
1889	1889-07-02	1889-09-01
1890	1890-06-22	1890-09-06
1891	1891-06-14	1891-09-27
1892	1892-06-11	1892-08-18
1893	1893-06-13	1893-09-14
1894	1894-06-02	1894-09-02
1895	1895-05-09	1895-09-22
1896	1896-05-07	1896-08-10
1897	1897-06-14	1897-09-30
1898	1898-06-04	1898-09-29
1899	1899-06-04	1899-09-16
1900	1900-05-13	1900-09-10
1901	1901-06-13	1901-09-06
1902	1902-05-19	1902-07-30
1903	1903-06-27	1903-07-28
1904	1904-07-16	1904-08-21
1905	1905-06-14	1905-09-28
1906	1906-06-28	1906-09-16
1907	1907-06-15	1907-09-01
1908	1908-06-20	1908-09-26
1909	1909-06-21	1909-08-26
1910	1910-06-13	1910-08-24
1911	1911-05-18	1911-09-01
1912	1912-06-25	1912-09-09
1913	1913-06-15	1913-09-07
1914	1914-05-26	1914-09-20
1915	1915-07-12	1915-07-13
1916	1916-07-06	1916-08-21
1917	1917-07-08	1917-08-19
1918	1918-06-11	1918-08-25
1919	1919-05-30	1919-09-08
1920	1920-06-09	1920-09-25
1921	1921-05-21	1921-09-02
1922	1922-05-11	1922-09-05
1923	1923-06-02	1923-08-11
1924	1924-07-21	1924-08-30
1925	1925-05-22	1925-09-17
1926	1926-07-07	1926-08-28
1927	1927-06-28	1927-09-15
1928	1928-07-07	1928-08-16
1929	1929-05-29	1929-09-04
1930	1930-05-05	1930-09-23
1931	1931-06-18	1931-09-20
1932	1932-05-14	1932-09-19
1933	1933-06-02	1933-09-08
1934	1934-05-06	1934-08-18
1935	1935-07-03	1935-08-17
1936	1936-05-09	1936-09-22
1937	1937-05-30	1937-09-23
1938	1938-06-20	1938-08-23
1939	1939-05-30	1939-09-15
1940	1940-06-03	1940-08-16
1941	1941-05-26	1941-09-21
1942	1942-06-28	1942-09-01
1943	1943-06-12	1943-08-13
1944	1944-05-30	1944-08-15
1945	1945-06-23	1945-09-07
1946	1946-06-16	1946-08-16
1947	1947-06-27	1947-09-18
1948	1948-05-20	1948-09-18
1949	1949-05-03	1949-08-26
1950	1950-05-24	1950-08-16
1951	1951-07-24	1951-07-29
1952	1952-05-01	1952-09-28
1953	1953-06-12	1953-09-03
1954	1954-06-13	1954-09-06
1955	1955-06-30	1955-09-18
1956	1956-05-22	1956-06-30
1957	1957-06-17	1957-09-01
1958	1958-06-29	1958-08-30
1959	1959-05-02	1959-09-09
1960	1960-07-12	1960-09-08
1961	1961-05-13	1961-09-10
1962	1962-04-26	1962-08-29
1963	1963-06-02	1963-10-06
1964	1964-05-22	1964-09-03
1965	1965-05-07	1965-08-14
1966	1966-06-20	1966-09-01
1967	1967-06-14	1967-08-17
1968	1968-06-05	1968-09-03
1969	1969-05-28	1969-08-30
1970	1970-05-21	1970-09-07
1971	1971-06-05	1971-09-04
1972	1972-05-17	1972-08-31
1973	1973-06-10	1973-09-26
1974	1974-07-01	1974-08-21
1975	1975-05-19	1975-08-24
1976	1976-06-07	1976-09-12
1977	1977-05-13	1977-08-27
1978	1978-05-26	1978-09-19
1979	1979-06-15	1979-08-07
1980	1980-04-22	1980-08-20
1981	1981-06-14	1981-09-11
1982	1982-06-28	1982-08-03
1983	1983-06-21	1983-09-10
1984	1984-06-18	1984-08-29
1985	1985-06-08	1985-09-06
1986	1986-05-29	1986-07-24
1987	1987-05-21	1987-08-15
1988	1988-05-29	1988-09-02
1989	1989-06-23	1989-08-27
1990	1990-04-24	1990-09-04
1991	1991-05-12	1991-09-09
1992	1992-05-01	1992-09-05
1993	1993-06-21	1993-08-27
1994	1994-05-21	1994-09-15
1995	1995-06-06	1995-09-05
1996	1996-05-18	1996-08-06
1997	1997-06-23	1997-08-02
1998	1998-05-18	1998-09-13
1999	1999-05-29	1999-09-05
2000	2000-06-08	2000-08-31
2001	2001-06-13	2001-08-09
2002	2002-06-01	2002-09-09
2003	2003-06-23	2003-09-06
2004	2004-06-07	2004-07-19
2005	2005-06-11	2005-10-03
2006	2006-05-28	2006-08-01
2007	2007-05-14	2007-10-08
2008	2008-06-06	2008-09-02
2009	2009-05-20	2009-08-14
2010	2010-05-23	2010-08-30
2011	2011-06-04	2011-08-06
2012	2012-05-19	2012-08-30
2013	2013-05-30	2013-09-10
2014	2014-05-31	2014-07-22
2015	2015-05-07	2015-09-06
2016	2016-05-06	2016-09-06
2017	2017-06-04	2017-09-25
2018	2018-05-25	2018-09-17
2019	2019-05-31	2019-08-07
2020	2020-05-26	2020-08-27
2021	2021-05-22	2021-09-19
2022	2022-05-10	2022-09-07
2023	2023-04-12	2023-10-03
2024	2024-05-18	2024-09-19
2025	2025-05-16	2025-10-04
2026	2026-05-16	2026-09-01

Every Fixed Threshold

Fixed thresholds at Green Bay
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	140	48	1988	16
35 C (95 F): Days	61	16	1931	2
40 C (104 F): Days	1	1	1936	1
90 F (32.2 C): Days	133	34	1988	6
100 F (37.8 C): Days	7	6	1936	2
0 C (32 F): Ice days (max	140	101	1978	39
0 C (32 F): Frost days (min	140	191	1976	99
-10 C (14 F): Days with min	140	89	1893	32
-20 C (-4 F): Days with min	140	40	1963	8
-30 C (-22 F): Days with min	39	8	1899	2
20 C (68 F): Tropical nights (min	137	25	1921	12
25 C (77 F): Days with min	10	4	1931	1
10 mm (0.39 in): Days with 10 mm or more rain	140	41	2019	28
25 mm (0.98 in): Days with 25 mm or more rain	137	11	1896	11
50 mm (1.97 in): Days with 50 mm or more rain	56	3	1914	2
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1912	1
10 cm (3.9 in): Days with 10 cm or more snowfall	128	10	1887	2
25 cm (9.8 in): Days with 25 cm or more snowfall	27	2	1889	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1888	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 Green Bay 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).

Green Bay Threshold Days by Year (USW00014898)

Key Facts for Green Bay Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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