Webster City Threshold Days by Year (USC00138806)

18 fixed thresholds counted per year at Webster City (USC00138806): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Webster City Thresholds

Webster City: days with a maximum temperature at or above 30 C (86 F) in 123 years, most in 1936 with 82.
Webster City: days with a maximum temperature at or below 0 C (32 F) in 123 years, most in 1978 with 89.
Webster City: days with 10 mm (0.39 in) or more of precipitation in 122 years, most in 1909 with 43.
Webster City: days with 25 mm (0.98 in) or more of precipitation in 122 years, most in 2004 with 15.
18 fixed thresholds have at least one qualifying day at Webster City.

Days at or above 30 C (86 F)

123 years with a qualifying day

Days per year at Webster City with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 82 in 1936.

Days at or above 30 C (86 F) per year at Webster City
Year	Days	Decade average
1893	60	57.5
1894	81	57.5
1897	49	57.5
1898	40	57.5
1906	58	57.3
1907	49	57.3
1908	57	57.3
1909	65	57.3
1910	66	55.3
1911	80	55.3
1913	73	55.3
1914	79	55.3
1915	15	55.3
1916	33	55.3
1917	39	55.3
1918	51	55.3
1919	62	55.3
1920	40	46.7
1921	74	46.7
1922	46	46.7
1924	17	46.7
1925	59	46.7
1926	47	46.7
1927	54	46.7
1928	36	46.7
1929	47	46.7
1930	67	69.6
1931	81	69.6
1932	53	69.6
1933	71	69.6
1934	76	69.6
1935	55	69.6
1936	82	69.6
1937	69	69.6
1938	68	69.6
1939	74	69.6
1940	48	48.8
1941	60	48.8
1942	33	48.8
1943	31	48.8
1944	32	48.8
1945	43	48.8
1946	46	48.8
1947	67	48.8
1948	61	48.8
1949	67	48.8
1950	31	46
1951	22	46
1952	58	46
1953	55	46
1954	50	46
1955	63	46
1956	60	46
1957	42	46
1958	28	46
1959	51	46
1960	32	30
1961	28	30
1962	27	30
1963	38	30
1964	46	30
1965	21	30
1966	38	30
1967	18	30
1968	33	30
1969	19	30
1970	43	40.3
1971	40	40.3
1972	35	40.3
1973	29	40.3
1974	30	40.3
1975	49	40.3
1976	47	40.3
1977	50	40.3
1978	45	40.3
1979	35	40.3
1980	60	44.1
1981	33	44.1
1982	24	44.1
1983	64	44.1
1984	38	44.1
1985	42	44.1
1986	33	44.1
1987	51	44.1
1988	72	44.1
1989	24	44.1
1990	34	30.4
1991	44	30.4
1992	14	30.4
1993	12	30.4
1994	24	30.4
1995	39	30.4
1996	19	30.4
1997	41	30.4
1998	40	30.4
1999	37	30.4
2000	32	35.3
2001	44	35.3
2002	49	35.3
2003	39	35.3
2004	15	35.3
2005	51	35.3
2006	41	35.3
2007	43	35.3
2008	23	35.3
2009	16	35.3
2010	49	33.8
2011	39	33.8
2012	63	33.8
2013	43	33.8
2014	9	33.8
2015	16	33.8
2016	28	33.8
2017	33	33.8
2018	36	33.8
2019	22	33.8
2020	40	35.3
2021	46	35.3
2022	34	35.3
2023	35	35.3
2024	27	35.3
2025	28	35.3
2026	37	35.3

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

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

Every Fixed Threshold

Fixed thresholds at Webster City
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	123	82	1936	37
35 C (95 F): Days	93	43	1934	1
40 C (104 F): Days	15	11	1936	4
90 F (32.2 C): Days	119	61	1894	8
100 F (37.8 C): Days	39	23	1934	3
0 C (32 F): Ice days (max	123	89	1978	35
0 C (32 F): Frost days (min	120	185	2013	102
-10 C (14 F): Days with min	120	86	1950	30
-20 C (-4 F): Days with min	120	37	1929	11
-30 C (-22 F): Days with min	58	8	1924	1
20 C (68 F): Tropical nights (min	120	32	1894	12
25 C (77 F): Days with min	18	3	1988	1
10 mm (0.39 in): Days with 10 mm or more rain	122	43	1909	31
25 mm (0.98 in): Days with 25 mm or more rain	122	15	2004	13
50 mm (1.97 in): Days with 50 mm or more rain	79	7	1993	3
100 mm (3.94 in): Days with 100 mm or more rain	12	1	1925	1
10 cm (3.9 in): Days with 10 cm or more snowfall	97	9	1909	1
25 cm (9.8 in): Days with 25 cm or more snowfall	8	1	1906	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1893.

Download the Data

Data for Webster City 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).

Webster City Threshold Days by Year (USC00138806)

Key Facts for Webster City Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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