Gibson Dam Threshold Days by Year (USC00243489)

19 fixed thresholds counted per year at Gibson Dam (USC00243489): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Gibson Dam Thresholds

Gibson Dam: days with a maximum temperature at or above 30 C (86 F) in 98 years, most in 1929 with 46.
Gibson Dam: days with a maximum temperature at or below 0 C (32 F) in 98 years, most in 1955 with 79.
Gibson Dam: nights with a minimum temperature at or below 0 C (32 F) in 96 years, most in 1943 with 217.
Gibson Dam: nights with a minimum temperature at or below -10 C (14 F) in 96 years, most in 1917 with 79.
19 fixed thresholds have at least one qualifying day at Gibson Dam.

Days at or above 30 C (86 F)

98 years with a qualifying day

Days per year at Gibson Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 46 in 1929.

Days at or above 30 C (86 F) per year at Gibson Dam
Year	Days	Decade average
1914	41	20.4
1915	13	20.4
1916	6	20.4
1917	25	20.4
1918	17	20.4
1923	13	30.6
1924	34	30.6
1927	24	30.6
1928	36	30.6
1929	46	30.6
1930	35	22.6
1931	30	22.6
1932	17	22.6
1933	19	22.6
1934	16	22.6
1935	19	22.6
1936	35	22.6
1937	23	22.6
1938	4	22.6
1939	28	22.6
1940	27	12.4
1941	10	12.4
1942	13	12.4
1943	5	12.4
1944	2	12.4
1946	15	12.4
1947	11	12.4
1948	15	12.4
1949	14	12.4
1950	3	7.7
1951	4	7.7
1952	6	7.7
1953	10	7.7
1954	11	7.7
1955	7	7.7
1956	9	7.7
1957	7	7.7
1958	7	7.7
1959	13	7.7
1960	22	14.2
1961	20	14.2
1962	4	14.2
1963	17	14.2
1964	4	14.2
1965	5	14.2
1966	14	14.2
1967	28	14.2
1968	10	14.2
1969	18	14.2
1970	18	11.4
1971	26	11.4
1972	5	11.4
1973	14	11.4
1974	11	11.4
1975	5	11.4
1976	6	11.4
1977	5	11.4
1978	10	11.4
1979	14	11.4
1980	6	11.2
1981	12	11.2
1982	6	11.2
1983	10	11.2
1984	14	11.2
1985	17	11.2
1986	8	11.2
1987	8	11.2
1988	25	11.2
1989	6	11.2
1990	17	12
1991	14	12
1992	10	12
1993	1	12
1994	19	12
1995	9	12
1996	16	12
1997	2	12
1998	22	12
1999	10	12
2000	24	17.3
2001	13	17.3
2002	14	17.3
2003	32	17.3
2004	5	17.3
2005	21	17.3
2006	17	17.3
2007	23	17.3
2009	7	17.3
2010	4	12
2011	8	12
2013	13	12
2014	9	12
2017	27	12
2019	11	12
2020	19	25.8
2021	33	25.8
2022	32	25.8
2026	19	25.8

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

First to last qualifying date each year at Gibson Dam
Year	First date	Last date
1914	1914-05-16	1914-08-14
1915	1915-07-21	1915-08-31
1916	1916-07-12	1916-08-31
1917	1917-07-06	1917-10-05
1918	1918-06-08	1918-08-25
1923	1923-07-19	1923-08-18
1924	1924-07-01	1924-09-04
1927	1927-06-23	1927-10-15
1928	1928-05-21	1928-09-30
1929	1929-06-25	1929-08-31
1930	1930-06-12	1930-09-05
1931	1931-06-07	1931-09-03
1932	1932-07-01	1932-09-06
1933	1933-06-14	1933-08-18
1934	1934-05-28	1934-10-11
1935	1935-06-22	1935-09-10
1936	1936-06-23	1936-08-30
1937	1937-06-21	1937-08-26
1938	1938-07-22	1938-08-28
1939	1939-07-09	1939-08-27
1940	1940-06-25	1940-09-11
1941	1941-06-22	1941-08-10
1942	1942-07-04	1942-08-23
1943	1943-07-21	1943-08-17
1944	1944-06-30	1944-07-28
1946	1946-07-11	1946-08-23
1947	1947-07-06	1947-09-02
1948	1948-07-01	1948-09-02
1949	1949-07-14	1949-08-22
1950	1950-09-02	1950-09-04
1951	1951-07-18	1951-08-03
1952	1952-07-08	1952-08-24
1953	1953-07-10	1953-09-12
1954	1954-07-04	1954-08-09
1955	1955-07-14	1955-09-06
1956	1956-06-10	1956-08-23
1957	1957-07-25	1957-08-20
1958	1958-08-07	1958-09-07
1959	1959-07-12	1959-08-16
1960	1960-06-19	1960-08-21
1961	1961-06-16	1961-08-24
1962	1962-08-06	1962-08-16
1963	1963-06-14	1963-09-29
1964	1964-07-12	1964-08-18
1965	1965-07-28	1965-08-11
1966	1966-06-28	1966-09-18
1967	1967-07-16	1967-09-29
1968	1968-07-06	1968-09-10
1969	1969-06-04	1969-09-02
1970	1970-06-25	1970-09-03
1971	1971-07-15	1971-08-28
1972	1972-07-29	1972-08-29
1973	1973-06-22	1973-08-16
1974	1974-06-16	1974-08-06
1975	1975-07-06	1975-08-05
1976	1976-06-30	1976-09-05
1977	1977-07-16	1977-08-18
1978	1978-07-24	1978-09-03
1979	1979-07-17	1979-09-15
1980	1980-07-22	1980-09-06
1981	1981-07-04	1981-09-19
1982	1982-07-21	1982-09-02
1983	1983-08-02	1983-08-31
1984	1984-06-28	1984-08-23
1985	1985-06-30	1985-07-26
1986	1986-06-01	1986-08-19
1987	1987-06-14	1987-09-22
1988	1988-06-16	1988-09-05
1989	1989-06-30	1989-07-24
1990	1990-06-26	1990-09-11
1991	1991-07-13	1991-09-01
1992	1992-06-11	1992-10-02
1993	1993-07-30	1993-07-30
1994	1994-07-18	1994-09-09
1995	1995-08-06	1995-09-04
1996	1996-06-08	1996-08-31
1997	1997-08-04	1997-08-24
1998	1998-07-17	1998-09-16
1999	1999-07-12	1999-08-31
2000	2000-07-13	2000-09-18
2001	2001-07-05	2001-09-26
2002	2002-06-27	2002-07-26
2003	2003-05-29	2003-09-05
2004	2004-07-17	2004-08-18
2005	2005-07-09	2005-09-17
2006	2006-06-29	2006-08-30
2007	2007-06-30	2007-08-18
2009	2009-07-18	2009-09-24
2010	2010-06-29	2010-08-26
2011	2011-06-28	2011-08-27
2013	2013-07-02	2013-09-02
2014	2014-07-03	2014-09-25
2017	2017-06-26	2017-09-11
2019	2019-07-23	2019-09-04
2020	2020-07-22	2020-09-06
2021	2021-06-04	2021-09-09
2022	2022-06-28	2022-09-29
2026	2026-07-09	2026-08-28

Every Fixed Threshold

Fixed thresholds at Gibson Dam
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	98	46	1929	19
35 C (95 F): Days	34	13	1930	1
40 C (104 F): Days	1	1	1929	1
90 F (32.2 C): Days	79	38	1929	8
100 F (37.8 C): Days	6	1	1929	1
0 C (32 F): Ice days (max	98	79	1955	4
0 C (32 F): Frost days (min	96	217	1943	42
-10 C (14 F): Days with min	96	79	1917	10
-20 C (-4 F): Days with min	96	52	1916	2
-30 C (-22 F): Days with min	72	26	1916	4
-40 C (-40 F): Days with min	6	4	1936	1
20 C (68 F): Tropical nights (min	3	6	1923	2
10 mm (0.39 in): Days with 10 mm or more rain	91	24	1958	5
25 mm (0.98 in): Days with 25 mm or more rain	78	7	1916	2
50 mm (1.97 in): Days with 50 mm or more rain	27	3	1916	1
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1916	1
10 cm (3.9 in): Days with 10 cm or more snowfall	79	18	1959	1
25 cm (9.8 in): Days with 25 cm or more snowfall	39	4	1959	1
50 cm (19.7 in): Days with 50 cm or more snowfall	2	1	1961	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1914.

Download the Data

Data for Gibson Dam 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Gibson Dam Threshold Days by Year (USC00243489)

Key Facts for Gibson Dam Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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