Louisiana Threshold Days by Year (USC00235098)

6 fixed thresholds counted per year at Louisiana (USC00235098): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Louisiana Thresholds

Louisiana: days with 10 mm (0.39 in) or more of precipitation in 77 years, most in 1973 with 48.
Louisiana: days with 25 mm (0.98 in) or more of precipitation in 77 years, most in 1970 with 18.
Louisiana: days with 50 mm (1.97 in) or more of precipitation in 60 years, most in 1961 with 6.
Louisiana: days with 10 cm (3.9 in) or more of snowfall in 31 years, most in 1951 with 4.
6 fixed thresholds have at least one qualifying day at Louisiana.

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

77 years with a qualifying day

Days per year at Louisiana with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 48 in 1973.

Days with 10 mm (0.39 in) or more of precipitation per year at Louisiana
Year	Days	Decade average
1940	18	32.5
1941	40	32.5
1942	39	32.5
1943	33	32.5
1944	28	32.5
1945	34	32.5
1946	31	32.5
1947	39	32.5
1948	28	32.5
1949	35	32.5
1951	35	27.6
1952	23	27.6
1953	22	27.6
1954	26	27.6
1955	28	27.6
1956	25	27.6
1957	35	27.6
1958	27	27.6
1959	27	27.6
1960	32	29.8
1961	32	29.8
1962	23	29.8
1963	18	29.8
1964	26	29.8
1965	24	29.8
1966	29	29.8
1967	45	29.8
1968	31	29.8
1969	38	29.8
1970	44	32.4
1971	26	32.4
1972	22	32.4
1973	48	32.4
1974	40	32.4
1975	30	32.4
1976	23	32.4
1977	33	32.4
1978	33	32.4
1979	25	32.4
1980	30	31.3
1981	48	31.3
1982	35	31.3
1983	31	31.3
1984	31	31.3
1985	44	31.3
1986	24	31.3
1987	26	31.3
1988	23	31.3
1989	21	31.3
1990	34	32.1
1991	34	32.1
1992	28	32.1
1993	44	32.1
1994	33	32.1
1995	35	32.1
1996	30	32.1
1997	29	32.1
1998	35	32.1
1999	19	32.1
2000	28	29.5
2001	28	29.5
2002	28	29.5
2003	35	29.5
2004	27	29.5
2005	23	29.5
2006	28	29.5
2007	16	29.5
2008	39	29.5
2009	43	29.5
2010	33	26.6
2014	29	26.6
2016	18	26.6
2017	24	26.6
2018	29	26.6
2020	31	28
2021	32	28
2022	21	28

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

First to last qualifying date each year at Louisiana
Year	First date	Last date
1940	1940-01-07	1940-12-16
1941	1941-01-01	1941-12-26
1942	1942-01-31	1942-12-29
1943	1943-02-03	1943-12-29
1944	1944-02-11	1944-12-10
1945	1945-01-09	1945-12-25
1946	1946-01-05	1946-12-29
1947	1947-01-30	1947-12-04
1948	1948-01-01	1948-12-29
1949	1949-01-10	1949-12-21
1951	1951-01-02	1951-12-25
1952	1952-01-26	1952-12-20
1953	1953-01-17	1953-12-22
1954	1954-01-20	1954-12-30
1955	1955-01-04	1955-11-23
1956	1956-02-02	1956-12-08
1957	1957-01-22	1957-12-25
1958	1958-01-22	1958-11-17
1959	1959-01-21	1959-12-28
1960	1960-01-15	1960-12-20
1961	1961-02-03	1961-12-19
1962	1962-01-15	1962-11-17
1963	1963-02-24	1963-11-23
1964	1964-01-31	1964-12-04
1965	1965-01-02	1965-12-25
1966	1966-02-02	1966-12-28
1967	1967-01-07	1967-12-21
1968	1968-01-30	1968-12-28
1969	1969-01-16	1969-12-23
1970	1970-02-14	1970-12-21
1971	1971-01-03	1971-12-30
1972	1972-01-28	1972-12-12
1973	1973-01-04	1973-12-31
1974	1974-01-19	1974-12-12
1975	1975-01-10	1975-12-15
1976	1976-01-14	1976-10-30
1977	1977-01-05	1977-12-01
1978	1978-02-13	1978-12-31
1979	1979-01-01	1979-12-25
1980	1980-01-20	1980-12-08
1981	1981-02-01	1981-12-28
1982	1982-01-29	1982-12-24
1983	1983-02-01	1983-12-10
1984	1984-02-17	1984-12-30
1985	1985-01-01	1985-12-11
1986	1986-02-04	1986-12-02
1987	1987-01-19	1987-12-20
1988	1988-02-04	1988-12-28
1989	1989-01-06	1989-12-30
1990	1990-02-15	1990-12-30
1991	1991-01-05	1991-12-21
1992	1992-02-15	1992-12-16
1993	1993-01-04	1993-11-26
1994	1994-02-20	1994-12-07
1995	1995-01-13	1995-12-19
1996	1996-01-18	1996-11-30
1997	1997-01-25	1997-12-25
1998	1998-01-05	1998-11-10
1999	1999-01-22	1999-12-12
2000	2000-02-18	2000-12-26
2001	2001-01-29	2001-12-13
2002	2002-01-31	2002-12-25
2003	2003-02-15	2003-12-23
2004	2004-01-18	2004-12-07
2005	2005-01-03	2005-12-25
2006	2006-01-21	2006-12-31
2007	2007-01-13	2007-12-23
2008	2008-01-08	2008-12-28
2009	2009-02-11	2009-12-25
2010	2010-01-24	2010-12-31
2014	2014-01-11	2014-11-24
2016	2016-01-20	2016-11-03
2017	2017-02-21	2017-11-15
2018	2018-01-22	2018-12-31
2020	2020-01-18	2020-12-12
2021	2021-01-31	2021-12-28
2022	2022-01-15	2022-10-26

Every Fixed Threshold

Fixed thresholds at Louisiana
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	77	48	1973	21
25 mm (0.98 in): Days with 25 mm or more rain	77	18	1970	9
50 mm (1.97 in): Days with 50 mm or more rain	60	6	1961	5
100 mm (3.94 in): Days with 100 mm or more rain	6	1	1941	1
10 cm (3.9 in): Days with 10 cm or more snowfall	31	4	1951	2
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	2006	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1940.

Download the Data

Data for Louisiana 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).

Louisiana Threshold Days by Year (USC00235098)

Key Facts for Louisiana Thresholds

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

Every Fixed Threshold

Download the Data

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