Davenport Threshold Days by Year (USC00452007)

16 fixed thresholds counted per year at Davenport (USC00452007): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Davenport Thresholds

Davenport: days with a maximum temperature at or above 30 C (86 F) in 108 years, most in 1958 with 70.
Davenport: days with a maximum temperature at or below 0 C (32 F) in 108 years, most in 2022 with 79.
Davenport: days with a maximum temperature at or above 90 F (32.2 C) in 107 years, most in 1958 with 50.
Davenport: nights with a minimum temperature at or below 0 C (32 F) in 102 years, most in 1935 with 200.
16 fixed thresholds have at least one qualifying day at Davenport.

Days at or above 30 C (86 F)

108 years with a qualifying day

Days per year at Davenport with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 70 in 1958.

Days at or above 30 C (86 F) per year at Davenport
Year	Days	Decade average
1910	35	32.1
1911	24	32.1
1912	24	32.1
1913	28	32.1
1914	27	32.1
1915	35	32.1
1917	32	32.1
1918	42	32.1
1919	42	32.1
1920	41	42.4
1921	28	42.4
1922	67	42.4
1923	34	42.4
1924	52	42.4
1925	52	42.4
1926	43	42.4
1927	32	42.4
1928	38	42.4
1929	37	42.4
1930	38	36.4
1931	48	36.4
1932	33	36.4
1933	37	36.4
1934	34	36.4
1935	26	36.4
1936	33	36.4
1937	37	36.4
1938	37	36.4
1939	41	36.4
1940	47	24.7
1941	22	24.7
1942	36	24.7
1943	23	24.7
1944	24	24.7
1945	30	24.7
1946	23	24.7
1947	18	24.7
1948	4	24.7
1949	20	24.7
1950	22	36.1
1951	23	36.1
1952	28	36.1
1953	36	36.1
1954	25	36.1
1955	44	36.1
1956	45	36.1
1957	37	36.1
1958	70	36.1
1959	31	36.1
1960	38	35.2
1961	53	35.2
1962	27	35.2
1963	40	35.2
1964	21	35.2
1969	32	35.2
1970	48	35.1
1971	39	35.1
1972	30	35.1
1973	42	35.1
1974	35	35.1
1975	24	35.1
1976	22	35.1
1977	38	35.1
1978	29	35.1
1979	44	35.1
1980	17	27.6
1981	35	27.6
1982	28	27.6
1983	24	27.6
1984	24	27.6
1987	42	27.6
1988	33	27.6
1989	18	27.6
1990	40	32.9
1991	24	32.9
1992	40	32.9
1993	18	32.9
1994	41	32.9
1995	16	32.9
1998	50	32.9
1999	34	32.9
2000	25	33.3
2001	31	33.3
2002	32	33.3
2003	44	33.3
2004	36	33.3
2005	27	33.3
2006	43	33.3
2007	33	33.3
2008	29	33.3
2009	33	33.3
2010	19	29.3
2011	17	29.3
2012	25	29.3
2013	34	29.3
2014	35	29.3
2015	42	29.3
2016	26	29.3
2017	45	29.3
2018	32	29.3
2019	18	29.3
2020	30	38.1
2021	49	38.1
2022	47	38.1
2023	32	38.1
2024	41	38.1
2025	38	38.1
2026	30	38.1

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

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

Every Fixed Threshold

Fixed thresholds at Davenport
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	108	70	1958	30
35 C (95 F): Days	90	20	1961	4
40 C (104 F): Days	3	2	2021	2
90 F (32.2 C): Days	107	50	1958	16
100 F (37.8 C): Days	35	5	1928	3
0 C (32 F): Ice days (max	108	79	2022	16
0 C (32 F): Frost days (min	102	200	1935	112
-10 C (14 F): Days with min	101	61	1922	6
-20 C (-4 F): Days with min	75	24	1949	2
-30 C (-22 F): Days with min	8	4	1950	1
20 C (68 F): Tropical nights (min	20	4	2021	1
10 mm (0.39 in): Days with 10 mm or more rain	101	19	1948	2
25 mm (0.98 in): Days with 25 mm or more rain	28	4	1948	1
50 mm (1.97 in): Days with 50 mm or more rain	1	1	1948	1
10 cm (3.9 in): Days with 10 cm or more snowfall	69	8	1969	1
25 cm (9.8 in): Days with 25 cm or more snowfall	6	2	2008	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1910.

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Data for Davenport 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).

Davenport Threshold Days by Year (USC00452007)

Key Facts for Davenport Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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