Mons Mari Threshold Days by Year

5 fixed thresholds counted per year at Mons Mari (ASN00040032): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mons Mari Thresholds

Mons Mari: days with 10 mm (0.39 in) or more of precipitation in 36 years, most in 1950 with 69.
Mons Mari: days with 25 mm (0.98 in) or more of precipitation in 36 years, most in 1958 with 32.
Mons Mari: days with 50 mm (1.97 in) or more of precipitation in 36 years, most in 1974 with 17.
Mons Mari: days with 100 mm (3.94 in) or more of precipitation in 29 years, most in 1956 with 7.
5 fixed thresholds have at least one qualifying day at Mons Mari.

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

36 years with a qualifying day

Days per year at Mons Mari with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 69 in 1950.

Days with 10 mm (0.39 in) or more of precipitation per year at Mons Mari
Year	Days	Decade average
1945	48	44.8
1946	37	44.8
1947	48	44.8
1948	40	44.8
1949	51	44.8
1950	69	49.6
1951	33	49.6
1952	46	49.6
1953	45	49.6
1954	51	49.6
1955	52	49.6
1956	52	49.6
1957	27	49.6
1958	64	49.6
1959	57	49.6
1960	37	46.8
1961	47	46.8
1962	55	46.8
1963	54	46.8
1964	57	46.8
1965	44	46.8
1966	42	46.8
1967	50	46.8
1968	33	46.8
1969	49	46.8
1970	50	50.6
1971	49	50.6
1972	58	50.6
1973	58	50.6
1974	56	50.6
1975	54	50.6
1976	65	50.6
1977	31	50.6
1978	53	50.6
1979	32	50.6
1980	37	37

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

First to last qualifying date each year at Mons Mari
Year	First date	Last date
1945	1945-01-03	1945-12-20
1946	1946-01-14	1946-12-16
1947	1947-01-01	1947-12-21
1948	1948-01-02	1948-12-19
1949	1949-01-01	1949-12-17
1950	1950-01-18	1950-12-20
1951	1951-01-02	1951-12-20
1952	1952-01-09	1952-12-25
1953	1953-01-01	1953-12-28
1954	1954-01-04	1954-12-19
1955	1955-01-21	1955-12-29
1956	1956-01-01	1956-12-30
1957	1957-01-10	1957-12-17
1958	1958-01-02	1958-12-29
1959	1959-01-02	1959-12-27
1960	1960-01-02	1960-12-07
1961	1961-01-04	1961-12-20
1962	1962-01-03	1962-12-31
1963	1963-01-01	1963-12-18
1964	1964-01-01	1964-12-29
1965	1965-01-04	1965-12-23
1966	1966-01-23	1966-12-31
1967	1967-01-02	1967-12-24
1968	1968-01-07	1968-11-30
1969	1969-01-01	1969-12-29
1970	1970-01-02	1970-12-27
1971	1971-01-14	1971-12-28
1972	1972-01-08	1972-12-29
1973	1973-01-08	1973-12-21
1974	1974-01-01	1974-12-30
1975	1975-01-04	1975-12-23
1976	1976-01-11	1976-12-25
1977	1977-01-03	1977-12-23
1978	1978-01-18	1978-12-31
1979	1979-01-20	1979-12-28
1980	1980-01-06	1980-12-16

Every Fixed Threshold

Fixed thresholds at Mons Mari
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	36	69	1950	37
25 mm (0.98 in): Days with 25 mm or more rain	36	32	1958	20
50 mm (1.97 in): Days with 50 mm or more rain	36	17	1974	7
100 mm (3.94 in): Days with 100 mm or more rain	29	7	1956	1
200 mm (7.87 in): Days with 200 mm or more rain	14	2	1951	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1945.

Download the Data

Data for Mons Mari 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).

Mons Mari Threshold Days by Year

Key Facts for Mons Mari Thresholds

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

Every Fixed Threshold

Download the Data

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