Normandy Threshold Days by Year (ASN00043026)

5 fixed thresholds counted per year at Normandy (ASN00043026): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Normandy Thresholds

Normandy: days with 10 mm (0.39 in) or more of precipitation in 80 years, most in 1950 with 35.
Normandy: days with 25 mm (0.98 in) or more of precipitation in 79 years, most in 1950 with 15.
Normandy: days with 50 mm (1.97 in) or more of precipitation in 52 years, most in 1950 with 5.
Normandy: days with 100 mm (3.94 in) or more of precipitation in 8 years, most in 1931 with 1.
5 fixed thresholds have at least one qualifying day at Normandy.

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

80 years with a qualifying day

Days per year at Normandy with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 35 in 1950.

Days with 10 mm (0.39 in) or more of precipitation per year at Normandy
Year	Days	Decade average
1929	15	15
1930	11	15.9
1931	21	15.9
1932	16	15.9
1933	25	15.9
1934	18	15.9
1935	9	15.9
1936	19	15.9
1937	9	15.9
1938	13	15.9
1939	18	15.9
1940	14	18.1
1941	21	18.1
1942	18	18.1
1943	22	18.1
1944	15	18.1
1945	17	18.1
1946	10	18.1
1947	24	18.1
1948	16	18.1
1949	24	18.1
1950	35	20.5
1951	9	20.5
1952	17	20.5
1953	15	20.5
1954	30	20.5
1955	24	20.5
1956	29	20.5
1957	7	20.5
1958	20	20.5
1959	19	20.5
1960	11	16.1
1961	20	16.1
1962	16	16.1
1963	22	16.1
1964	17	16.1
1965	15	16.1
1966	16	16.1
1967	11	16.1
1968	17	16.1
1969	16	16.1
1970	20	17.2
1971	16	17.2
1972	14	17.2
1973	16	17.2
1974	17	17.2
1975	23	17.2
1976	18	17.2
1977	15	17.2
1978	24	17.2
1979	9	17.2
1980	12	18.2
1981	19	18.2
1982	16	18.2
1983	27	18.2
1984	22	18.2
1985	25	18.2
1986	15	18.2
1987	10	18.2
1988	20	18.2
1989	16	18.2
1990	19	17.1
1991	10	17.1
1992	15	17.1
1993	14	17.1
1994	17	17.1
1995	16	17.1
1996	19	17.1
1997	17	17.1
1998	21	17.1
1999	23	17.1
2000	16	14.3
2001	11	14.3
2003	16	14.3
2020	10	14
2021	20	14
2022	14	14
2023	14	14
2024	18	14
2025	8	14

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

First to last qualifying date each year at Normandy
Year	First date	Last date
1929	1929-01-12	1929-12-30
1930	1930-01-25	1930-11-24
1931	1931-01-09	1931-12-07
1932	1932-01-15	1932-11-25
1933	1933-01-22	1933-12-14
1934	1934-01-08	1934-11-30
1935	1935-01-04	1935-10-22
1936	1936-01-07	1936-12-25
1937	1937-01-13	1937-11-05
1938	1938-01-07	1938-11-30
1939	1939-01-19	1939-11-22
1940	1940-02-02	1940-12-29
1941	1941-01-04	1941-12-25
1942	1942-02-09	1942-12-30
1943	1943-01-08	1943-11-19
1944	1944-02-17	1944-12-19
1945	1945-01-11	1945-12-08
1946	1946-01-19	1946-12-20
1947	1947-02-10	1947-12-22
1948	1948-01-02	1948-12-31
1949	1949-01-09	1949-12-10
1950	1950-01-02	1950-11-25
1951	1951-01-01	1951-12-27
1952	1952-02-19	1952-12-31
1953	1953-01-24	1953-11-27
1954	1954-01-01	1954-12-19
1955	1955-01-09	1955-12-19
1956	1956-01-21	1956-12-22
1957	1957-01-10	1957-07-01
1958	1958-01-01	1958-12-29
1959	1959-01-03	1959-12-18
1960	1960-01-06	1960-11-22
1961	1961-01-03	1961-12-16
1962	1962-01-02	1962-12-24
1963	1963-01-09	1963-12-08
1964	1964-02-09	1964-12-23
1965	1965-01-23	1965-12-15
1966	1966-01-07	1966-12-31
1967	1967-01-12	1967-12-30
1968	1968-01-04	1968-12-25
1969	1969-01-12	1969-12-12
1970	1970-01-27	1970-12-26
1971	1971-01-14	1971-12-27
1972	1972-02-11	1972-12-08
1973	1973-01-13	1973-12-05
1974	1974-01-06	1974-11-18
1975	1975-01-01	1975-12-27
1976	1976-01-12	1976-12-23
1977	1977-01-06	1977-12-09
1978	1978-01-16	1978-12-27
1979	1979-02-01	1979-11-21
1980	1980-01-31	1980-12-16
1981	1981-01-18	1981-12-14
1982	1982-01-08	1982-12-02
1983	1983-01-03	1983-11-29
1984	1984-01-01	1984-10-04
1985	1985-01-09	1985-12-23
1986	1986-01-05	1986-11-30
1987	1987-01-02	1987-12-23
1988	1988-01-04	1988-12-27
1989	1989-03-16	1989-12-06
1990	1990-01-16	1990-12-09
1991	1991-01-05	1991-12-13
1992	1992-01-26	1992-12-16
1993	1993-02-22	1993-12-23
1994	1994-01-15	1994-12-25
1995	1995-01-19	1995-12-27
1996	1996-01-03	1996-12-07
1997	1997-01-26	1997-12-10
1998	1998-01-15	1998-12-31
1999	1999-01-01	1999-12-28
2000	2000-01-09	2000-11-22
2001	2001-01-11	2001-12-18
2003	2003-02-08	2003-12-25
2020	2020-01-17	2020-10-24
2021	2021-02-07	2021-12-18
2022	2022-01-15	2022-10-20
2023	2023-01-24	2023-12-26
2024	2024-01-28	2024-12-01
2025	2025-02-13	2025-08-09

Every Fixed Threshold

Fixed thresholds at Normandy
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	80	35	1950	8
25 mm (0.98 in): Days with 25 mm or more rain	79	15	1950	3
50 mm (1.97 in): Days with 50 mm or more rain	52	5	1950	1
100 mm (3.94 in): Days with 100 mm or more rain	8	1	1931	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1971	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1929.

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Data for Normandy 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).

Normandy Threshold Days by Year (ASN00043026)

Key Facts for Normandy Thresholds

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

Every Fixed Threshold

Download the Data

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