Webster Dam Threshold Days by Year (USC00148648)

20 fixed thresholds counted per year at Webster Dam (USC00148648): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Webster Dam Thresholds

Webster Dam: days with a maximum temperature at or above 30 C (86 F) in 64 years, most in 2012 with 117.
Webster Dam: days with a maximum temperature at or above 35 C (95 F) in 64 years, most in 2012 with 65.
Webster Dam: days with a maximum temperature at or above 90 F (32.2 C) in 64 years, most in 2012 with 92.
Webster Dam: days with a maximum temperature at or below 0 C (32 F) in 64 years, most in 1978 with 57.
20 fixed thresholds have at least one qualifying day at Webster Dam.

Days at or above 30 C (86 F)

64 years with a qualifying day

Days per year at Webster Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 117 in 2012.

Days at or above 30 C (86 F) per year at Webster Dam
Year	Days	Decade average
1954	102	91.2
1955	98	91.2
1956	106	91.2
1957	72	91.2
1958	77	91.2
1959	92	91.2
1960	81	85.4
1961	72	85.4
1962	83	85.4
1963	115	85.4
1964	95	85.4
1965	74	85.4
1966	99	85.4
1967	71	85.4
1968	91	85.4
1969	73	85.4
1970	105	90.7
1971	96	90.7
1972	86	90.7
1973	79	90.7
1974	77	90.7
1975	88	90.7
1976	87	90.7
1977	85	90.7
1978	96	90.7
1979	108	90.7
1981	78	90.4
1982	72	90.4
1983	99	90.4
1984	101	90.4
1985	83	90.4
1986	97	90.4
1987	89	90.4
1988	106	90.4
1989	89	90.4
1990	90	80.3
1991	107	80.3
1992	59	80.3
1993	61	80.3
1994	101	80.3
1996	76	80.3
1997	68	80.3
2004	98	92.8
2006	107	92.8
2007	108	92.8
2008	75	92.8
2009	76	92.8
2010	109	105.5
2011	107	105.5
2012	117	105.5
2013	101	105.5
2014	108	105.5
2015	110	105.5
2016	92	105.5
2017	106	105.5
2018	104	105.5
2019	101	105.5
2020	100	110.1
2021	114	110.1
2022	114	110.1
2023	106	110.1
2024	109	110.1
2025	100	110.1
2026	128	110.1

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

First to last qualifying date each year at Webster Dam
Year	First date	Last date
1954	1954-04-07	1954-10-11
1955	1955-04-20	1955-10-12
1956	1956-03-26	1956-10-14
1957	1957-04-20	1957-10-07
1958	1958-05-12	1958-10-20
1959	1959-04-07	1959-10-26
1960	1960-04-22	1960-09-22
1961	1961-04-20	1961-10-18
1962	1962-04-20	1962-10-20
1963	1963-03-29	1963-10-20
1964	1964-04-02	1964-10-17
1965	1965-04-21	1965-10-11
1966	1966-05-05	1966-10-14
1967	1967-03-24	1967-10-13
1968	1968-03-31	1968-10-16
1969	1969-05-01	1969-10-04
1970	1970-04-28	1970-10-06
1971	1971-04-01	1971-10-11
1972	1972-03-01	1972-10-03
1973	1973-05-19	1973-10-09
1974	1974-05-11	1974-10-11
1975	1975-04-27	1975-10-23
1976	1976-03-26	1976-10-03
1977	1977-04-11	1977-10-21
1978	1978-03-31	1978-10-21
1979	1979-04-20	1979-10-20
1981	1981-04-03	1981-09-30
1982	1982-04-15	1982-10-06
1983	1983-04-26	1983-10-03
1984	1984-04-26	1984-09-24
1985	1985-04-16	1985-10-08
1986	1986-03-25	1986-09-29
1987	1987-04-18	1987-10-05
1988	1988-04-08	1988-10-15
1989	1989-03-11	1989-10-24
1990	1990-04-23	1990-10-17
1991	1991-04-06	1991-10-23
1992	1992-04-15	1992-10-22
1993	1993-05-15	1993-10-07
1994	1994-03-18	1994-10-01
1996	1996-03-24	1996-10-13
1997	1997-05-18	1997-10-07
2004	2004-04-16	2004-10-29
2006	2006-03-01	2006-10-08
2007	2007-04-29	2007-11-20
2008	2008-05-01	2008-09-29
2009	2009-04-23	2009-10-01
2010	2010-05-05	2010-10-21
2011	2011-03-22	2011-10-25
2012	2012-03-14	2012-10-04
2013	2013-04-28	2013-10-11
2014	2014-04-10	2014-10-26
2015	2015-03-16	2015-10-21
2016	2016-03-08	2016-11-01
2017	2017-03-20	2017-10-06
2018	2018-04-13	2018-10-04
2019	2019-04-21	2019-10-19
2020	2020-03-31	2020-10-12
2021	2021-03-30	2021-10-10
2022	2022-04-13	2022-10-24
2023	2023-04-12	2023-10-24
2024	2024-04-14	2024-10-12
2025	2025-03-11	2025-10-13
2026	2026-03-15	2026-10-13

Every Fixed Threshold

Fixed thresholds at Webster Dam
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	64	117	2012	128
35 C (95 F): Days	64	65	2012	59
40 C (104 F): Days	49	24	2022	19
45 C (113 F): Days	5	1	1983	3
90 F (32.2 C): Days	64	92	2012	95
100 F (37.8 C): Days	63	38	2012	27
110 F (43.3 C): Days	20	6	2022	5
0 C (32 F): Ice days (max	64	57	1978	9
0 C (32 F): Frost days (min	61	164	1966	75
-10 C (14 F): Days with min	61	68	1978	20
-20 C (-4 F): Days with min	52	18	1979	3
-30 C (-22 F): Days with min	2	2	1989	2
20 C (68 F): Tropical nights (min	61	49	1979	33
25 C (77 F): Days with min	16	4	1964	1
10 mm (0.39 in): Days with 10 mm or more rain	50	32	1993	10
25 mm (0.98 in): Days with 25 mm or more rain	48	11	1993	4
50 mm (1.97 in): Days with 50 mm or more rain	33	4	1987	3
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1969	1
10 cm (3.9 in): Days with 10 cm or more snowfall	40	6	1960	1
25 cm (9.8 in): Days with 25 cm or more snowfall	4	2	1987	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1954.

Download the Data

Data for Webster 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Webster Dam Threshold Days by Year (USC00148648)

Key Facts for Webster Dam Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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