Webster Threshold Days by Year (USC00198918)

6 fixed thresholds counted per year at Webster (USC00198918): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Webster Thresholds

Webster: days with 10 mm (0.39 in) or more of precipitation in 37 years, most in 1898 with 50.
Webster: days with 25 mm (0.98 in) or more of precipitation in 37 years, most in 1951 with 20.
Webster: days with 50 mm (1.97 in) or more of precipitation in 26 years, most in 1938 with 5.
Webster: days with 10 cm (3.9 in) or more of snowfall in 3 years, most in 1956 with 6.
6 fixed thresholds have at least one qualifying day at Webster.

Days with 10 mm (0.39 in) or more of precipitation

37 years with a qualifying day

Days per year at Webster with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 50 in 1898.

Days with 10 mm (0.39 in) or more of precipitation per year at Webster
Year	Days	Decade average
1893	42	38.1
1894	31	38.1
1895	35	38.1
1896	35	38.1
1897	37	38.1
1898	50	38.1
1899	37	38.1
1901	43	36.3
1903	40	36.3
1904	33	36.3
1905	29	36.3
1931	30	33.3
1932	34	33.3
1934	37	33.3
1935	26	33.3
1937	36	33.3
1938	36	33.3
1939	34	33.3
1940	32	33
1941	24	33
1942	41	33
1943	33	33
1944	34	33
1945	35	33
1946	34	33
1947	36	33
1948	34	33
1949	27	33
1950	28	33.3
1951	40	33.3
1952	34	33.3
1953	38	33.3
1955	29	33.3
1956	40	33.3
1957	28	33.3
1958	29	33.3
1959	34	33.3

For each year, a bar from the first to the last day at Webster meeting 10 mm (0.39 in).

First to last qualifying date each year at Webster
Year	First date	Last date
1893	1893-01-02	1893-12-17
1894	1894-01-25	1894-12-27
1895	1895-01-07	1895-12-31
1896	1896-01-10	1896-12-16
1897	1897-01-05	1897-12-15
1898	1898-01-01	1898-12-22
1899	1899-01-01	1899-12-20
1901	1901-01-11	1901-12-30
1903	1903-01-03	1903-12-21
1904	1904-01-02	1904-12-28
1905	1905-01-04	1905-12-29
1931	1931-01-05	1931-12-23
1932	1932-01-02	1932-12-28
1934	1934-01-06	1934-12-27
1935	1935-01-02	1935-12-16
1937	1937-01-03	1937-12-24
1938	1938-01-07	1938-12-09
1939	1939-01-05	1939-12-20
1940	1940-01-14	1940-12-28
1941	1941-01-16	1941-12-24
1942	1942-01-01	1942-12-30
1943	1943-01-18	1943-12-26
1944	1944-01-06	1944-12-31
1945	1945-01-01	1945-12-29
1946	1946-01-20	1946-12-27
1947	1947-01-01	1947-12-26
1948	1948-01-13	1948-12-30
1949	1949-01-01	1949-11-30
1950	1950-01-07	1950-12-30
1951	1951-01-15	1951-12-21
1952	1952-01-03	1952-12-23
1953	1953-01-03	1953-12-15
1955	1955-01-07	1955-11-16
1956	1956-01-09	1956-12-23
1957	1957-01-23	1957-12-27
1958	1958-01-22	1958-11-29
1959	1959-01-02	1959-12-29

Every Fixed Threshold

Fixed thresholds at Webster
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	37	50	1898	34
25 mm (0.98 in): Days with 25 mm or more rain	37	20	1951	11
50 mm (1.97 in): Days with 50 mm or more rain	26	5	1938	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1932	1
10 cm (3.9 in): Days with 10 cm or more snowfall	3	6	1956	3
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1956	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 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).

Webster Threshold Days by Year (USC00198918)

Key Facts for Webster Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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