Williamsburg 2 N Threshold Days by Year (USC00449151)

18 fixed thresholds counted per year at Williamsburg 2 N (USC00449151): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Williamsburg 2 N Thresholds

Williamsburg 2 N: days with 10 mm (0.39 in) or more of precipitation in 76 years, most in 2003 with 58.
Williamsburg 2 N: days with 25 mm (0.98 in) or more of precipitation in 76 years, most in 2020 with 27.
Williamsburg 2 N: days with a maximum temperature at or above 30 C (86 F) in 75 years, most in 1998 with 111.
Williamsburg 2 N: days with a maximum temperature at or above 90 F (32.2 C) in 75 years, most in 2010 with 68.
18 fixed thresholds have at least one qualifying day at Williamsburg 2 N.

Days at or above 30 C (86 F)

75 years with a qualifying day

Days per year at Williamsburg 2 N with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 111 in 1998.

Days at or above 30 C (86 F) per year at Williamsburg 2 N
Year	Days	Decade average
1952	57	77.5
1953	87	77.5
1954	88	77.5
1955	69	77.5
1956	76	77.5
1957	81	77.5
1958	66	77.5
1959	96	77.5
1960	66	70.7
1961	79	70.7
1962	74	70.7
1963	78	70.7
1964	65	70.7
1965	84	70.7
1966	75	70.7
1967	51	70.7
1968	68	70.7
1969	67	70.7
1970	95	70.7
1971	69	70.7
1972	49	70.7
1973	72	70.7
1974	62	70.7
1975	75	70.7
1976	74	70.7
1977	91	70.7
1978	70	70.7
1979	50	70.7
1980	97	77.4
1981	73	77.4
1982	54	77.4
1983	83	77.4
1984	69	77.4
1985	74	77.4
1986	90	77.4
1987	89	77.4
1988	75	77.4
1989	70	77.4
1990	87	81.8
1991	92	81.8
1992	55	81.8
1993	90	81.8
1994	83	81.8
1995	79	81.8
1996	67	81.8
1997	73	81.8
1998	111	81.8
1999	81	81.8
2000	66	66.2
2001	60	66.2
2002	79	66.2
2003	56	66.2
2004	59	66.2
2005	76	66.2
2006	65	66.2
2007	69	66.2
2008	82	66.2
2009	50	66.2
2010	93	76.6
2011	77	76.6
2012	67	76.6
2013	65	76.6
2014	53	76.6
2015	74	76.6
2016	84	76.6
2017	80	76.6
2018	86	76.6
2019	87	76.6
2020	67	75
2021	72	75
2022	84	75
2023	72	75
2024	65	75
2025	69	75
2026	96	75

For each year, a bar from the first to the last day at Williamsburg 2 N meeting 30 C (86 F).

First to last qualifying date each year at Williamsburg 2 N
Year	First date	Last date
1952	1952-03-21	1952-08-30
1953	1953-05-05	1953-10-01
1954	1954-03-26	1954-10-13
1955	1955-04-19	1955-09-20
1956	1956-04-30	1956-09-23
1957	1957-04-20	1957-09-22
1958	1958-04-20	1958-10-10
1959	1959-04-08	1959-10-06
1960	1960-04-14	1960-09-20
1961	1961-04-25	1961-09-26
1962	1962-04-26	1962-10-12
1963	1963-04-02	1963-09-20
1964	1964-04-18	1964-09-11
1965	1965-05-02	1965-09-24
1966	1966-04-24	1966-09-11
1967	1967-04-02	1967-10-05
1968	1968-03-21	1968-10-03
1969	1969-04-27	1969-09-08
1970	1970-05-09	1970-09-27
1971	1971-04-13	1971-09-20
1972	1972-04-15	1972-09-27
1973	1973-05-28	1973-09-30
1974	1974-04-28	1974-09-29
1975	1975-05-21	1975-10-15
1976	1976-04-16	1976-09-14
1977	1977-04-11	1977-10-02
1978	1978-04-01	1978-09-22
1979	1979-06-07	1979-09-14
1980	1980-05-05	1980-09-24
1981	1981-04-12	1981-10-01
1982	1982-05-07	1982-09-18
1983	1983-04-28	1983-09-20
1984	1984-05-19	1984-10-28
1985	1985-03-29	1985-10-15
1986	1986-03-31	1986-10-05
1987	1987-05-02	1987-09-18
1988	1988-04-06	1988-09-24
1989	1989-03-29	1989-09-22
1990	1990-03-12	1990-10-13
1991	1991-04-07	1991-09-19
1992	1992-04-17	1992-09-22
1993	1993-05-11	1993-09-27
1994	1994-04-19	1994-09-17
1995	1995-04-19	1995-09-15
1996	1996-04-12	1996-09-10
1997	1997-05-18	1997-10-10
1998	1998-03-29	1998-10-01
1999	1999-04-08	1999-09-25
2000	2000-03-08	2000-09-03
2001	2001-04-09	2001-09-23
2002	2002-04-16	2002-10-05
2003	2003-05-11	2003-09-20
2004	2004-04-18	2004-08-31
2005	2005-04-20	2005-09-26
2006	2006-04-15	2006-10-04
2007	2007-04-25	2007-10-09
2008	2008-04-18	2008-09-16
2009	2009-04-25	2009-08-29
2010	2010-04-05	2010-10-11
2011	2011-04-20	2011-09-16
2012	2012-04-16	2012-10-03
2013	2013-04-09	2013-10-05
2014	2014-05-08	2014-09-11
2015	2015-05-12	2015-09-20
2016	2016-04-19	2016-10-19
2017	2017-04-16	2017-10-09
2018	2018-05-02	2018-10-07
2019	2019-04-30	2019-10-03
2020	2020-03-20	2020-09-04
2021	2021-04-28	2021-09-28
2022	2022-04-13	2022-09-25
2023	2023-04-05	2023-09-12
2024	2024-04-15	2024-09-01
2025	2025-04-05	2025-09-25
2026	2026-03-11	2026-10-14

Every Fixed Threshold

Fixed thresholds at Williamsburg 2 N
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	75	111	1998	96
35 C (95 F): Days	69	31	1980	15
40 C (104 F): Days	2	1	1952	1
90 F (32.2 C): Days	75	68	2010	49
100 F (37.8 C): Days	17	7	1983	1
0 C (32 F): Ice days (max	64	10	2015	10
0 C (32 F): Frost days (min	75	116	1987	45
-10 C (14 F): Days with min	62	18	1963	2
-20 C (-4 F): Days with min	1	1	1985	1
20 C (68 F): Tropical nights (min	75	100	2018	85
25 C (77 F): Days with min	40	8	2016	3
10 mm (0.39 in): Days with 10 mm or more rain	76	58	2003	28
25 mm (0.98 in): Days with 25 mm or more rain	76	27	2020	11
50 mm (1.97 in): Days with 50 mm or more rain	71	8	2020	2
100 mm (3.94 in): Days with 100 mm or more rain	17	2	2006	1
200 mm (7.87 in): Days with 200 mm or more rain	6	1	1975	1
10 cm (3.9 in): Days with 10 cm or more snowfall	24	4	2010	1
25 cm (9.8 in): Days with 25 cm or more snowfall	2	2	1980	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.

Download the Data

Data for Williamsburg 2 N 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).

Williamsburg 2 N Threshold Days by Year (USC00449151)

Key Facts for Williamsburg 2 N Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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