Le Bourget Threshold Days by Year (FRM00007150)

12 fixed thresholds counted per year at Le Bourget (FRM00007150): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Le Bourget Thresholds

Le Bourget: days with 10 mm (0.39 in) or more of precipitation in 122 years, most in 2000 with 27.
Le Bourget: nights with a minimum temperature at or below 0 C (32 F) in 102 years, most in 1917 with 82.
Le Bourget: days with a maximum temperature at or above 30 C (86 F) in 99 years, most in 1947 with 39.
Le Bourget: days with 25 mm (0.98 in) or more of precipitation in 91 years, most in 1931 with 5.
12 fixed thresholds have at least one qualifying day at Le Bourget.

Days at or above 30 C (86 F)

99 years with a qualifying day

Days per year at Le Bourget with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 39 in 1947.

Days at or above 30 C (86 F) per year at Le Bourget
Year	Days	Decade average
1900	21	10.5
1901	13	10.5
1902	7	10.5
1903	9	10.5
1904	17	10.5
1905	6	10.5
1906	14	10.5
1907	3	10.5
1908	6	10.5
1909	9	10.5
1911	35	10.4
1912	9	10.4
1913	3	10.4
1914	10	10.4
1915	3	10.4
1916	2	10.4
1917	8	10.4
1918	9	10.4
1919	15	10.4
1920	2	7.8
1921	15	7.8
1922	6	7.8
1923	14	7.8
1924	2	7.8
1925	3	7.8
1926	8	7.8
1927	2	7.8
1928	9	7.8
1929	17	7.8
1930	6	8.3
1931	2	8.3
1932	10	8.3
1933	10	8.3
1934	12	8.3
1935	14	8.3
1936	5	8.3
1937	11	8.3
1938	9	8.3
1939	4	8.3
1940	6	13.8
1941	11	13.8
1942	11	13.8
1943	13	13.8
1944	12	13.8
1945	16	13.8
1946	8	13.8
1947	39	13.8
1948	5	13.8
1949	17	13.8
1950	10	7.1
1951	2	7.1
1952	10	7.1
1953	9	7.1
1954	4	7.1
1955	8	7.1
1956	3	7.1
1957	8	7.1
1958	1	7.1
1959	16	7.1
1960	2	5
1961	12	5
1962	1	5
1963	2	5
1964	13	5
1965	1	5
1966	3	5
1967	7	5
1968	2	5
1969	7	5
1970	3	6.8
1971	5	6.8
1972	1	6.8
1973	12	6.8
1974	4	6.8
1975	11	6.8
1976	23	6.8
1978	1	6.8
1979	1	6.8
1980	2	6.8
1981	7	6.8
1982	10	6.8
1983	13	6.8
1984	7	6.8
1985	2	6.8
1986	10	6.8
1987	5	6.8
1988	3	6.8
1989	9	6.8
1990	16	12.9
1991	10	12.9
1992	13	12.9
1993	3	12.9
1994	16	12.9
1995	23	12.9
1996	7	12.9
1997	16	12.9
1998	11	12.9
1999	14	12.9
2000	8	8

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

First to last qualifying date each year at Le Bourget
Year	First date	Last date
1900	1900-06-10	1900-08-19
1901	1901-06-22	1901-09-08
1902	1902-06-30	1902-08-16
1903	1903-06-27	1903-09-02
1904	1904-06-24	1904-08-17
1905	1905-06-04	1905-08-15
1906	1906-06-27	1906-09-04
1907	1907-08-04	1907-08-09
1908	1908-06-03	1908-08-20
1909	1909-05-21	1909-08-16
1911	1911-07-07	1911-09-12
1912	1912-05-11	1912-07-17
1913	1913-05-30	1913-08-27
1914	1914-05-22	1914-08-14
1915	1915-06-07	1915-08-09
1916	1916-08-01	1916-08-02
1917	1917-06-05	1917-07-28
1918	1918-05-21	1918-08-23
1919	1919-06-07	1919-09-12
1920	1920-06-29	1920-07-17
1921	1921-06-25	1921-09-15
1922	1922-05-21	1922-06-01
1923	1923-07-05	1923-09-12
1924	1924-06-27	1924-07-12
1925	1925-06-12	1925-08-09
1926	1926-07-14	1926-09-19
1927	1927-06-16	1927-07-05
1928	1928-07-12	1928-09-09
1929	1929-07-11	1929-09-05
1930	1930-06-12	1930-08-30
1931	1931-06-05	1931-06-14
1932	1932-05-20	1932-08-20
1933	1933-07-06	1933-08-29
1934	1934-06-17	1934-09-08
1935	1935-06-10	1935-08-22
1936	1936-06-18	1936-07-17
1937	1937-05-24	1937-08-12
1938	1938-06-07	1938-08-04
1939	1939-06-05	1939-07-29
1940	1940-06-10	1940-09-06
1941	1941-06-18	1941-07-25
1942	1942-06-05	1942-09-12
1943	1943-05-14	1943-08-20
1944	1944-05-28	1944-08-19
1945	1945-05-11	1945-08-28
1946	1946-07-01	1946-08-05
1947	1947-05-29	1947-09-19
1948	1948-06-08	1948-07-29
1949	1949-04-16	1949-09-05
1950	1950-06-05	1950-08-22
1951	1951-07-28	1951-07-30
1952	1952-06-28	1952-08-12
1953	1953-05-24	1953-09-01
1954	1954-05-27	1954-09-01
1955	1955-07-11	1955-08-23
1956	1956-07-08	1956-07-27
1957	1957-06-15	1957-07-06
1958	1958-09-05	1958-09-05
1959	1959-06-04	1959-09-12
1960	1960-06-18	1960-08-22
1961	1961-06-25	1961-09-18
1962	1962-07-25	1962-07-25
1963	1963-07-22	1963-07-23
1964	1964-06-12	1964-09-14
1965	1965-08-05	1965-08-05
1966	1966-06-15	1966-08-13
1967	1967-07-01	1967-08-01
1968	1968-06-30	1968-07-01
1969	1969-07-15	1969-08-11
1970	1970-07-07	1970-08-04
1971	1971-07-08	1971-07-12
1972	1972-07-18	1972-07-18
1973	1973-06-26	1973-09-15
1974	1974-08-13	1974-08-16
1975	1975-07-30	1975-08-14
1976	1976-05-08	1976-08-25
1978	1978-07-29	1978-07-29
1979	1979-07-27	1979-07-27
1980	1980-07-25	1980-08-02
1981	1981-06-15	1981-08-15
1982	1982-07-02	1982-09-17
1983	1983-07-09	1983-09-24
1984	1984-07-08	1984-09-02
1985	1985-07-13	1985-07-25
1986	1986-06-20	1986-08-03
1987	1987-06-29	1987-09-20
1988	1988-08-07	1988-08-18
1989	1989-06-20	1989-08-21
1990	1990-06-26	1990-08-29
1991	1991-07-05	1991-09-04
1992	1992-05-14	1992-08-18
1993	1993-06-09	1993-08-21
1994	1994-06-24	1994-08-04
1995	1995-06-28	1995-08-22
1996	1996-06-06	1996-08-19
1997	1997-08-04	1997-08-31
1998	1998-05-12	1998-08-11
1999	1999-07-02	1999-09-11
2000	2000-06-18	2000-08-25

Every Fixed Threshold

Fixed thresholds at Le Bourget
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	99	39	1947	8
35 C (95 F): Days	26	11	1911	4
40 C (104 F): Days	1	1	1947	1
90 F (32.2 C): Days	74	31	1947	1
100 F (37.8 C): Days	3	2	1947	1
0 C (32 F): Ice days (max	87	25	1917	1
0 C (32 F): Frost days (min	102	82	1917	3
-10 C (14 F): Days with min	27	11	1956	1
20 C (68 F): Tropical nights (min	55	16	1976	2
10 mm (0.39 in): Days with 10 mm or more rain	122	27	2000	2
25 mm (0.98 in): Days with 25 mm or more rain	91	5	1931	1
50 mm (1.97 in): Days with 50 mm or more rain	15	1	1901	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1900.

Download the Data

Data for Le Bourget 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).

Le Bourget Threshold Days by Year (FRM00007150)

Key Facts for Le Bourget Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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