Walma Threshold Days by Year (ASN00052027)

4 fixed thresholds counted per year at Walma (ASN00052027): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Walma Thresholds

Walma: days with 10 mm (0.39 in) or more of precipitation in 81 years, most in 1950 with 28.
Walma: days with 25 mm (0.98 in) or more of precipitation in 78 years, most in 1955 with 11.
Walma: days with 50 mm (1.97 in) or more of precipitation in 48 years, most in 1950 with 4.
Walma: days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1898 with 1.
4 fixed thresholds have at least one qualifying day at Walma.

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

81 years with a qualifying day

Days per year at Walma with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 28 in 1950.

Days with 10 mm (0.39 in) or more of precipitation per year at Walma
Year	Days	Decade average
1886	21	17.3
1887	26	17.3
1888	5	17.3
1890	26	15.9
1892	14	15.9
1893	22	15.9
1894	19	15.9
1896	13	15.9
1897	12	15.9
1898	9	15.9
1899	12	15.9
1900	11	13.8
1901	13	13.8
1902	3	13.8
1903	18	13.8
1904	14	13.8
1905	10	13.8
1906	20	13.8
1907	18	13.8
1908	15	13.8
1909	16	13.8
1910	12	13.6
1911	13	13.6
1912	12	13.6
1913	13	13.6
1914	14	13.6
1915	10	13.6
1916	25	13.6
1917	14	13.6
1918	11	13.6
1919	12	13.6
1920	19	13
1921	22	13
1922	12	13
1923	7	13
1924	10	13
1925	14	13
1926	16	13
1927	13	13
1928	9	13
1929	8	13
1930	12	14.3
1931	22	14.3
1932	9	14.3
1933	22	14.3
1934	18	14.3
1935	9	14.3
1936	14	14.3
1937	10	14.3
1938	12	14.3
1939	15	14.3
1940	10	12.4
1941	14	12.4
1942	17	12.4
1943	9	12.4
1944	7	12.4
1945	10	12.4
1946	8	12.4
1947	21	12.4
1948	14	12.4
1949	14	12.4
1950	28	15.7
1951	11	15.7
1952	11	15.7
1953	13	15.7
1954	14	15.7
1955	18	15.7
1956	20	15.7
1957	8	15.7
1958	13	15.7
1959	21	15.7
1960	14	14
1961	20	14
1962	19	14
1963	18	14
1964	14	14
1965	6	14
1966	13	14
1967	7	14
1968	15	14
1969	14	14

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

First to last qualifying date each year at Walma
Year	First date	Last date
1886	1886-04-12	1886-12-26
1887	1887-01-20	1887-12-31
1888	1888-01-26	1888-05-13
1890	1890-01-12	1890-11-20
1892	1892-01-08	1892-12-28
1893	1893-01-13	1893-12-15
1894	1894-01-06	1894-12-30
1896	1896-01-07	1896-11-27
1897	1897-01-01	1897-11-12
1898	1898-01-02	1898-12-23
1899	1899-01-10	1899-09-11
1900	1900-01-04	1900-12-24
1901	1901-02-16	1901-11-20
1902	1902-02-02	1902-11-29
1903	1903-01-27	1903-12-25
1904	1904-01-02	1904-12-16
1905	1905-02-17	1905-10-14
1906	1906-02-01	1906-11-13
1907	1907-01-09	1907-12-28
1908	1908-02-01	1908-12-13
1909	1909-01-20	1909-12-26
1910	1910-01-11	1910-12-12
1911	1911-01-12	1911-12-02
1912	1912-03-01	1912-12-23
1913	1913-01-07	1913-12-26
1914	1914-01-19	1914-12-21
1915	1915-04-04	1915-12-15
1916	1916-01-29	1916-12-24
1917	1917-01-23	1917-12-13
1918	1918-01-11	1918-12-02
1919	1919-01-20	1919-12-29
1920	1920-01-05	1920-12-13
1921	1921-01-04	1921-12-24
1922	1922-01-13	1922-12-17
1923	1923-06-04	1923-12-26
1924	1924-02-07	1924-12-06
1925	1925-01-17	1925-12-31
1926	1926-01-02	1926-12-20
1927	1927-01-06	1927-12-10
1928	1928-01-20	1928-07-16
1929	1929-02-05	1929-11-17
1930	1930-01-24	1930-12-17
1931	1931-01-25	1931-12-08
1932	1932-03-17	1932-09-17
1933	1933-01-27	1933-12-06
1934	1934-01-30	1934-12-22
1935	1935-01-06	1935-12-01
1936	1936-01-06	1936-12-16
1937	1937-01-02	1937-10-16
1938	1938-01-24	1938-10-24
1939	1939-01-01	1939-11-04
1940	1940-02-05	1940-12-31
1941	1941-01-03	1941-11-09
1942	1942-01-16	1942-12-27
1943	1943-01-01	1943-11-19
1944	1944-02-07	1944-08-23
1945	1945-02-27	1945-10-01
1946	1946-01-06	1946-11-25
1947	1947-01-07	1947-12-25
1948	1948-01-02	1948-11-08
1949	1949-02-21	1949-11-22
1950	1950-01-16	1950-11-23
1951	1951-01-16	1951-11-27
1952	1952-02-19	1952-10-25
1953	1953-01-06	1953-11-06
1954	1954-01-01	1954-12-13
1955	1955-01-22	1955-11-26
1956	1956-01-19	1956-12-14
1957	1957-02-19	1957-12-31
1958	1958-01-31	1958-12-16
1959	1959-01-02	1959-12-25
1960	1960-01-20	1960-12-26
1961	1961-01-03	1961-12-19
1962	1962-01-01	1962-12-31
1963	1963-01-10	1963-12-07
1964	1964-01-14	1964-12-02
1965	1965-02-26	1965-12-15
1966	1966-01-07	1966-11-08
1967	1967-01-26	1967-12-08
1968	1968-01-13	1968-12-24
1969	1969-03-16	1969-11-12

Every Fixed Threshold

Fixed thresholds at Walma
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	81	28	1950	14
25 mm (0.98 in): Days with 25 mm or more rain	78	11	1955	4
50 mm (1.97 in): Days with 50 mm or more rain	48	4	1950	4
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1898	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1886.

Download the Data

Data for Walma 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).

Walma Threshold Days by Year (ASN00052027)

Key Facts for Walma Thresholds

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

Every Fixed Threshold

Download the Data

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