Miva Threshold Days by Year

5 fixed thresholds counted per year at Miva (ASN00040132): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Miva Thresholds

Miva: days with 10 mm (0.39 in) or more of precipitation in 66 years, most in 1956 with 43.
Miva: days with 25 mm (0.98 in) or more of precipitation in 66 years, most in 1921 with 19.
Miva: days with 50 mm (1.97 in) or more of precipitation in 61 years, most in 1956 with 9.
Miva: days with 100 mm (3.94 in) or more of precipitation in 27 years, most in 1934 with 3.
5 fixed thresholds have at least one qualifying day at Miva.

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

66 years with a qualifying day

Days per year at Miva with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 43 in 1956.

Days with 10 mm (0.39 in) or more of precipitation per year at Miva
Year	Days	Decade average
1907	31	29.7
1908	30	29.7
1909	28	29.7
1910	31	28.4
1911	24	28.4
1912	32	28.4
1913	38	28.4
1914	26	28.4
1915	23	28.4
1916	34	28.4
1917	26	28.4
1918	22	28.4
1920	23	28
1921	35	28
1922	25	28
1923	26	28
1926	20	28
1927	34	28
1928	30	28
1929	31	28
1930	31	26.9
1931	26	26.9
1932	15	26.9
1933	34	26.9
1934	30	26.9
1935	33	26.9
1936	24	26.9
1937	24	26.9
1938	26	26.9
1939	26	26.9
1940	27	27.7
1941	22	27.7
1942	28	27.7
1943	37	27.7
1944	19	27.7
1945	25	27.7
1946	25	27.7
1947	33	27.7
1948	28	27.7
1949	33	27.7
1950	38	31.7
1951	17	31.7
1952	28	31.7
1953	29	31.7
1954	34	31.7
1955	35	31.7
1956	43	31.7
1957	16	31.7
1958	37	31.7
1959	40	31.7
1960	17	27
1961	35	27
1962	34	27
1963	26	27
1964	34	27
1965	20	27
1966	25	27
1967	30	27
1968	25	27
1969	24	27
1970	28	31.8
1971	32	31.8
1972	23	31.8
1973	35	31.8
1974	41	31.8
1975	32	31.8

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

First to last qualifying date each year at Miva
Year	First date	Last date
1907	1907-01-11	1907-12-28
1908	1908-01-03	1908-12-28
1909	1909-01-16	1909-12-31
1910	1910-01-13	1910-12-19
1911	1911-01-11	1911-12-08
1912	1912-01-01	1912-12-31
1913	1913-01-01	1913-12-20
1914	1914-01-12	1914-12-30
1915	1915-01-02	1915-12-29
1916	1916-02-27	1916-12-28
1917	1917-01-23	1917-12-26
1918	1918-01-04	1918-11-22
1920	1920-01-01	1920-12-09
1921	1921-01-14	1921-12-31
1922	1922-01-08	1922-12-25
1923	1923-01-06	1923-12-24
1926	1926-01-06	1926-12-31
1927	1927-01-11	1927-12-25
1928	1928-01-09	1928-12-20
1929	1929-01-19	1929-12-31
1930	1930-01-01	1930-12-18
1931	1931-01-20	1931-12-23
1932	1932-02-17	1932-12-22
1933	1933-01-19	1933-12-29
1934	1934-01-31	1934-12-28
1935	1935-01-03	1935-12-29
1936	1936-01-10	1936-12-25
1937	1937-01-11	1937-12-15
1938	1938-01-17	1938-12-02
1939	1939-01-24	1939-12-19
1940	1940-01-19	1940-12-22
1941	1941-01-15	1941-12-29
1942	1942-01-16	1942-12-31
1943	1943-01-12	1943-12-31
1944	1944-01-26	1944-12-28
1945	1945-01-01	1945-12-29
1946	1946-01-07	1946-12-31
1947	1947-01-01	1947-12-21
1948	1948-02-11	1948-12-26
1949	1949-01-08	1949-12-17
1950	1950-01-03	1950-12-18
1951	1951-01-17	1951-12-14
1952	1952-01-09	1952-12-23
1953	1953-01-24	1953-12-28
1954	1954-01-15	1954-12-16
1955	1955-01-22	1955-12-31
1956	1956-01-02	1956-12-23
1957	1957-01-11	1957-12-17
1958	1958-01-24	1958-12-20
1959	1959-01-03	1959-12-26
1960	1960-01-22	1960-12-07
1961	1961-01-04	1961-12-19
1962	1962-01-06	1962-12-31
1963	1963-01-01	1963-12-16
1964	1964-01-01	1964-12-26
1965	1965-01-27	1965-12-19
1966	1966-01-23	1966-12-31
1967	1967-01-01	1967-12-19
1968	1968-01-03	1968-12-30
1969	1969-01-01	1969-12-31
1970	1970-01-02	1970-12-26
1971	1971-01-15	1971-12-28
1972	1972-01-16	1972-11-10
1973	1973-01-08	1973-12-27
1974	1974-01-06	1974-12-28
1975	1975-01-04	1975-12-23

Every Fixed Threshold

Fixed thresholds at Miva
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	66	43	1956	32
25 mm (0.98 in): Days with 25 mm or more rain	66	19	1921	14
50 mm (1.97 in): Days with 50 mm or more rain	61	9	1956	3
100 mm (3.94 in): Days with 100 mm or more rain	27	3	1934	1
200 mm (7.87 in): Days with 200 mm or more rain	3	1	1947	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1907.

Download the Data

Data for Miva 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Miva Threshold Days by Year

Key Facts for Miva Thresholds

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

Every Fixed Threshold

Download the Data

Related