Williamsburg 2 Threshold Days by Year (USC00158706)

16 fixed thresholds counted per year at Williamsburg 2 (USC00158706): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Williamsburg 2 Thresholds

Williamsburg 2: days with 10 mm (0.39 in) or more of precipitation in 56 years, most in 1926 with 57.
Williamsburg 2: days with 25 mm (0.98 in) or more of precipitation in 56 years, most in 1937 with 19.
Williamsburg 2: nights with a minimum temperature at or below 0 C (32 F) in 53 years, most in 1912 with 132.
Williamsburg 2: nights with a minimum temperature at or above 20 C (68 F) in 53 years, most in 1900 with 66.
16 fixed thresholds have at least one qualifying day at Williamsburg 2.

Days at or above 30 C (86 F)

51 years with a qualifying day

Days per year at Williamsburg 2 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 124 in 1925.

Days at or above 30 C (86 F) per year at Williamsburg 2
Year	Days	Decade average
1897	71	92.7
1898	104	92.7
1899	103	92.7
1900	111	67.8
1901	67	67.8
1904	61	67.8
1905	57	67.8
1906	56	67.8
1907	66	67.8
1908	74	67.8
1909	50	67.8
1910	89	94.9
1911	123	94.9
1912	89	94.9
1913	106	94.9
1914	107	94.9
1915	79	94.9
1916	92	94.9
1917	74	94.9
1918	72	94.9
1919	118	94.9
1920	60	95.2
1921	101	95.2
1922	93	95.2
1923	91	95.2
1924	75	95.2
1925	124	95.2
1926	111	95.2
1927	107	95.2
1928	89	95.2
1929	101	95.2
1930	95	102
1931	113	102
1932	106	102
1935	92	102
1936	122	102
1937	92	102
1938	94	102
1940	78	76.7
1941	102	76.7
1942	77	76.7
1943	82	76.7
1944	103	76.7
1945	79	76.7
1946	53	76.7
1947	68	76.7
1948	59	76.7
1949	66	76.7
1950	37	76.3
1951	100	76.3
1956	92	76.3

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

First to last qualifying date each year at Williamsburg 2
Year	First date	Last date
1897	1897-05-21	1897-10-15
1898	1898-05-03	1898-10-02
1899	1899-04-22	1899-09-18
1900	1900-04-29	1900-10-07
1901	1901-05-02	1901-09-12
1904	1904-05-23	1904-10-09
1905	1905-05-05	1905-10-07
1906	1906-04-13	1906-10-24
1907	1907-03-21	1907-09-22
1908	1908-05-24	1908-10-21
1909	1909-06-09	1909-09-20
1910	1910-03-06	1910-10-13
1911	1911-05-11	1911-10-30
1912	1912-05-03	1912-10-11
1913	1913-05-02	1913-10-11
1914	1914-04-25	1914-09-23
1915	1915-04-24	1915-09-29
1916	1916-04-21	1916-10-07
1917	1917-04-18	1917-10-18
1918	1918-05-06	1918-09-25
1919	1919-04-09	1919-10-11
1920	1920-04-19	1920-09-27
1921	1921-04-26	1921-09-29
1922	1922-04-08	1922-10-05
1923	1923-05-19	1923-09-28
1924	1924-05-06	1924-09-21
1925	1925-04-18	1925-10-04
1926	1926-05-01	1926-10-04
1927	1927-04-05	1927-10-29
1928	1928-05-03	1928-10-14
1929	1929-03-25	1929-09-29
1930	1930-04-12	1930-09-26
1931	1931-04-15	1931-10-11
1932	1932-05-04	1932-09-19
1935	1935-04-26	1935-10-31
1936	1936-05-02	1936-09-28
1937	1937-04-18	1937-10-31
1938	1938-04-26	1938-10-19
1940	1940-04-02	1940-09-24
1941	1941-04-13	1941-10-09
1942	1942-04-27	1942-09-19
1943	1943-05-05	1943-09-06
1944	1944-04-11	1944-09-21
1945	1945-03-16	1945-09-29
1946	1946-04-02	1946-10-28
1947	1947-05-23	1947-09-21
1948	1948-04-26	1948-09-21
1949	1949-03-26	1949-08-30
1950	1950-04-24	1950-09-02
1951	1951-05-01	1951-10-06
1956	1956-04-27	1956-10-01

Every Fixed Threshold

Fixed thresholds at Williamsburg 2
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	51	124	1925	92
35 C (95 F): Days	43	57	1931	2
40 C (104 F): Days	5	8	1936	8
90 F (32.2 C): Days	51	95	1931	40
100 F (37.8 C): Days	16	27	1936	1
0 C (32 F): Ice days (max	47	18	1899	1
0 C (32 F): Frost days (min	53	132	1912	80
-10 C (14 F): Days with min	52	25	1917	2
-20 C (-4 F): Days with min	16	4	1899	2
20 C (68 F): Tropical nights (min	53	66	1900	31
25 C (77 F): Days with min	12	2	1936	1
10 mm (0.39 in): Days with 10 mm or more rain	56	57	1926	53
25 mm (0.98 in): Days with 25 mm or more rain	56	19	1937	14
50 mm (1.97 in): Days with 50 mm or more rain	47	7	1941	1
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1926	1
10 cm (3.9 in): Days with 10 cm or more snowfall	2	1	1950	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1897.

Download the Data

Data for Williamsburg 2 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).

Williamsburg 2 Threshold Days by Year (USC00158706)

Key Facts for Williamsburg 2 Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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