Somerset Threshold Days by Year (ASN00042089)

4 fixed thresholds counted per year at Somerset (ASN00042089): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Somerset Thresholds

Somerset: days with 10 mm (0.39 in) or more of precipitation in 70 years, most in 1956 with 32.
Somerset: days with 25 mm (0.98 in) or more of precipitation in 70 years, most in 1956 with 14.
Somerset: days with 50 mm (1.97 in) or more of precipitation in 52 years, most in 1983 with 7.
Somerset: days with 100 mm (3.94 in) or more of precipitation in 12 years, most in 1956 with 4.
4 fixed thresholds have at least one qualifying day at Somerset.

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

70 years with a qualifying day

Days per year at Somerset with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 32 in 1956.

Days with 10 mm (0.39 in) or more of precipitation per year at Somerset
Year	Days	Decade average
1912	21	19.5
1913	22	19.5
1914	24	19.5
1915	14	19.5
1916	28	19.5
1917	28	19.5
1918	12	19.5
1919	7	19.5
1920	26	20.8
1921	28	20.8
1922	15	20.8
1923	13	20.8
1924	26	20.8
1925	21	20.8
1926	18	20.8
1927	30	20.8
1928	16	20.8
1929	15	20.8
1930	17	19.4
1931	22	19.4
1932	13	19.4
1933	26	19.4
1934	21	19.4
1935	20	19.4
1936	14	19.4
1937	21	19.4
1938	22	19.4
1939	18	19.4
1940	17	19.7
1941	14	19.7
1942	25	19.7
1943	27	19.7
1944	16	19.7
1949	19	19.7
1953	20	23.3
1954	31	23.3
1955	23	23.3
1956	32	23.3
1957	13	23.3
1958	24	23.3
1959	20	23.3
1960	19	21.4
1961	24	21.4
1962	25	21.4
1963	21	21.4
1964	24	21.4
1965	14	21.4
1967	23	21.4
1968	26	21.4
1969	17	21.4
1970	24	21.7
1971	28	21.7
1972	20	21.7
1973	30	21.7
1974	22	21.7
1975	23	21.7
1976	22	21.7
1977	8	21.7
1978	26	21.7
1979	14	21.7
1980	18	21.6
1981	21	21.6
1982	14	21.6
1983	29	21.6
1984	30	21.6
1985	20	21.6
1986	15	21.6
1987	14	21.6
1988	29	21.6
1989	26	21.6

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

First to last qualifying date each year at Somerset
Year	First date	Last date
1912	1912-01-05	1912-11-21
1913	1913-01-01	1913-12-16
1914	1914-01-13	1914-12-29
1915	1915-02-26	1915-12-16
1916	1916-01-01	1916-12-14
1917	1917-01-14	1917-12-21
1918	1918-01-01	1918-12-12
1919	1919-02-19	1919-12-16
1920	1920-01-02	1920-12-08
1921	1921-01-14	1921-12-31
1922	1922-01-01	1922-12-21
1923	1923-01-07	1923-12-27
1924	1924-01-07	1924-12-17
1925	1925-01-02	1925-12-30
1926	1926-01-02	1926-12-29
1927	1927-01-05	1927-12-28
1928	1928-02-08	1928-12-31
1929	1929-01-20	1929-12-31
1930	1930-01-25	1930-12-18
1931	1931-02-05	1931-12-09
1932	1932-04-05	1932-12-21
1933	1933-01-28	1933-12-15
1934	1934-02-01	1934-12-27
1935	1935-01-05	1935-12-26
1936	1936-01-09	1936-12-24
1937	1937-01-03	1937-12-15
1938	1938-01-20	1938-12-30
1939	1939-01-19	1939-12-27
1940	1940-02-02	1940-12-18
1941	1941-01-06	1941-12-26
1942	1942-01-01	1942-12-31
1943	1943-01-02	1943-12-18
1944	1944-01-02	1944-12-31
1949	1949-01-10	1949-12-15
1953	1953-02-09	1953-12-27
1954	1954-01-05	1954-11-21
1955	1955-01-20	1955-12-18
1956	1956-01-13	1956-12-22
1957	1957-01-10	1957-11-26
1958	1958-01-19	1958-12-26
1959	1959-01-03	1959-12-25
1960	1960-01-22	1960-12-16
1961	1961-02-17	1961-12-20
1962	1962-01-03	1962-12-30
1963	1963-01-08	1963-12-31
1964	1964-01-12	1964-12-07
1965	1965-01-07	1965-12-15
1967	1967-01-02	1967-12-25
1968	1968-01-05	1968-12-25
1969	1969-01-02	1969-12-24
1970	1970-01-08	1970-12-30
1971	1971-01-19	1971-12-28
1972	1972-01-04	1972-12-31
1973	1973-01-13	1973-12-29
1974	1974-01-01	1974-12-29
1975	1975-01-09	1975-12-24
1976	1976-01-14	1976-12-23
1977	1977-01-16	1977-11-21
1978	1978-01-10	1978-12-04
1979	1979-01-16	1979-12-20
1980	1980-01-28	1980-12-31
1981	1981-02-05	1981-12-24
1982	1982-01-19	1982-12-04
1983	1983-01-03	1983-12-07
1984	1984-01-03	1984-12-29
1985	1985-01-09	1985-12-08
1986	1986-01-26	1986-12-25
1987	1987-01-06	1987-12-25
1988	1988-01-04	1988-12-27
1989	1989-01-02	1989-12-27

Every Fixed Threshold

Fixed thresholds at Somerset
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	70	32	1956	26
25 mm (0.98 in): Days with 25 mm or more rain	70	14	1956	7
50 mm (1.97 in): Days with 50 mm or more rain	52	7	1983	1
100 mm (3.94 in): Days with 100 mm or more rain	12	4	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 1912.

Download the Data

Data for Somerset 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).

Somerset Threshold Days by Year (ASN00042089)

Key Facts for Somerset Thresholds

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

Every Fixed Threshold

Download the Data

Related