Davenport L&D 15 Threshold Days by Year (USW00014932)

19 fixed thresholds counted per year at Davenport L&D 15 (USW00014932): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Davenport L&D 15 Thresholds

Davenport L&D 15: days with a maximum temperature at or above 30 C (86 F) in 76 years, most in 1936 with 78.
Davenport L&D 15: days with a maximum temperature at or above 90 F (32.2 C) in 76 years, most in 1936 with 55.
Davenport L&D 15: days with a maximum temperature at or below 0 C (32 F) in 76 years, most in 1978 with 74.
Davenport L&D 15: nights with a minimum temperature at or below 0 C (32 F) in 76 years, most in 1926 with 143.
19 fixed thresholds have at least one qualifying day at Davenport L&D 15.

Days at or above 30 C (86 F)

76 years with a qualifying day

Days per year at Davenport L&D 15 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 78 in 1936.

Days at or above 30 C (86 F) per year at Davenport L&D 15
Year	Days	Decade average
1901	65	38.1
1902	30	38.1
1903	23	38.1
1904	21	38.1
1905	35	38.1
1906	50	38.1
1907	27	38.1
1908	49	38.1
1909	43	38.1
1910	49	49.3
1911	63	49.3
1912	49	49.3
1913	64	49.3
1914	62	49.3
1915	21	49.3
1916	58	49.3
1917	30	49.3
1918	38	49.3
1919	59	49.3
1920	44	44.5
1921	70	44.5
1922	53	44.5
1923	51	44.5
1924	22	44.5
1925	58	44.5
1926	34	44.5
1927	40	44.5
1928	34	44.5
1929	39	44.5
1930	60	63.8
1931	71	63.8
1932	46	63.8
1933	70	63.8
1934	70	63.8
1935	60	63.8
1936	78	63.8
1937	66	63.8
1938	55	63.8
1939	62	63.8
1940	55	53.5
1941	63	53.5
1942	43	53.5
1949	53	53.5
1950	23	43.9
1951	26	43.9
1952	58	43.9
1953	61	43.9
1954	53	43.9
1955	60	43.9
1956	45	43.9
1957	39	43.9
1958	21	43.9
1959	53	43.9
1960	28	34.7
1961	36	34.7
1962	36	34.7
1963	41	34.7
1964	44	34.7
1965	25	34.7
1966	40	34.7
1967	18	34.7
1968	40	34.7
1969	39	34.7
1970	42	50.2
1971	57	50.2
1972	49	50.2
1973	48	50.2
1974	31	50.2
1975	55	50.2
1976	50	50.2
1977	53	50.2
1978	57	50.2
1979	60	50.2
1981	34	45.7
1982	31	45.7
1983	72	45.7

For each year, a bar from the first to the last day at Davenport L&D 15 meeting 30 C (86 F).

First to last qualifying date each year at Davenport L&D 15
Year	First date	Last date
1901	1901-04-29	1901-09-24
1902	1902-04-21	1902-08-29
1903	1903-06-30	1903-09-07
1904	1904-06-19	1904-09-28
1905	1905-06-04	1905-09-29
1906	1906-05-16	1906-09-19
1907	1907-06-16	1907-09-19
1908	1908-05-17	1908-09-25
1909	1909-05-05	1909-09-20
1910	1910-04-29	1910-10-16
1911	1911-05-09	1911-09-14
1912	1912-05-21	1912-10-06
1913	1913-05-28	1913-09-07
1914	1914-05-10	1914-09-20
1915	1915-04-28	1915-09-13
1916	1916-06-29	1916-10-08
1917	1917-05-18	1917-09-05
1918	1918-05-04	1918-08-27
1919	1919-05-30	1919-10-01
1920	1920-06-08	1920-09-25
1921	1921-05-20	1921-09-20
1922	1922-05-10	1922-10-05
1923	1923-06-01	1923-09-05
1924	1924-05-05	1924-08-30
1925	1925-04-22	1925-09-19
1926	1926-04-30	1926-09-18
1927	1927-06-19	1927-09-17
1928	1928-05-03	1928-09-09
1929	1929-05-28	1929-09-27
1930	1930-04-10	1930-10-10
1931	1931-04-08	1931-09-21
1932	1932-05-14	1932-09-19
1933	1933-06-02	1933-09-30
1934	1934-05-05	1934-09-25
1935	1935-06-12	1935-09-24
1936	1936-05-06	1936-09-22
1937	1937-05-29	1937-10-01
1938	1938-06-21	1938-10-10
1939	1939-05-21	1939-10-07
1940	1940-05-13	1940-09-21
1941	1941-05-20	1941-09-24
1942	1942-04-29	1942-09-18
1949	1949-05-03	1949-10-08
1950	1950-05-24	1950-08-23
1951	1951-05-18	1951-09-26
1952	1952-04-28	1952-09-30
1953	1953-05-25	1953-10-02
1954	1954-06-09	1954-10-03
1955	1955-05-03	1955-09-18
1956	1956-05-11	1956-09-13
1957	1957-06-05	1957-09-01
1958	1958-06-08	1958-09-24
1959	1959-05-02	1959-09-22
1960	1960-07-02	1960-09-08
1961	1961-05-31	1961-09-10
1962	1962-05-14	1962-10-11
1963	1963-05-08	1963-10-15
1964	1964-05-18	1964-09-09
1965	1965-05-07	1965-09-09
1966	1966-06-04	1966-09-02
1967	1967-05-18	1967-08-02
1968	1968-05-02	1968-09-03
1969	1969-05-03	1969-10-04
1970	1970-04-28	1970-09-07
1971	1971-05-17	1971-10-02
1972	1972-05-18	1972-09-20
1973	1973-06-08	1973-09-02
1974	1974-05-21	1974-08-26
1975	1975-05-18	1975-10-13
1976	1976-06-06	1976-10-03
1977	1977-04-16	1977-09-08
1978	1978-06-11	1978-09-19
1979	1979-05-08	1979-09-28
1981	1981-04-27	1981-09-30
1982	1982-05-17	1982-10-01
1983	1983-06-09	1983-10-02

Every Fixed Threshold

Fixed thresholds at Davenport L&D 15
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	76	78	1936	72
35 C (95 F): Days	64	34	1936	15
40 C (104 F): Days	7	13	1936	13
90 F (32.2 C): Days	76	55	1936	49
100 F (37.8 C): Days	17	19	1936	2
110 F (43.3 C): Days	1	1	1936	1
0 C (32 F): Ice days (max	76	74	1978	25
0 C (32 F): Frost days (min	76	143	1926	92
-10 C (14 F): Days with min	76	64	1978	14
-20 C (-4 F): Days with min	67	29	1963	14
-30 C (-22 F): Days with min	4	2	1905	1
20 C (68 F): Tropical nights (min	76	68	1921	54
25 C (77 F): Days with min	39	12	1931	4
10 mm (0.39 in): Days with 10 mm or more rain	76	42	1951	21
25 mm (0.98 in): Days with 25 mm or more rain	75	15	1951	9
50 mm (1.97 in): Days with 50 mm or more rain	52	5	1977	1
100 mm (3.94 in): Days with 100 mm or more rain	7	1	1905	1
10 cm (3.9 in): Days with 10 cm or more snowfall	55	7	1951	2
25 cm (9.8 in): Days with 25 cm or more snowfall	2	2	1979	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1901.

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Data for Davenport L&D 15 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).

Davenport L&D 15 Threshold Days by Year (USW00014932)

Key Facts for Davenport L&D 15 Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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