Waterfall Threshold Days by Year (SF000956350)

4 fixed thresholds counted per year at Waterfall (SF000956350): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Waterfall Thresholds

Waterfall: days with 10 mm (0.39 in) or more of precipitation in 59 years, most in 1939 with 27.
Waterfall: days with 25 mm (0.98 in) or more of precipitation in 56 years, most in 1931 with 7.
Waterfall: days with 50 mm (1.97 in) or more of precipitation in 27 years, most in 1913 with 2.
Waterfall: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1913 with 1.
4 fixed thresholds have at least one qualifying day at Waterfall.

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

59 years with a qualifying day

Days per year at Waterfall with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 27 in 1939.

Days with 10 mm (0.39 in) or more of precipitation per year at Waterfall
Year	Days	Decade average
1913	23	12.9
1914	12	12.9
1915	10	12.9
1916	9	12.9
1917	16	12.9
1918	14	12.9
1919	6	12.9
1920	18	12.8
1921	18	12.8
1922	15	12.8
1923	10	12.8
1924	7	12.8
1925	20	12.8
1926	8	12.8
1927	5	12.8
1928	12	12.8
1929	15	12.8
1930	13	14.9
1931	16	14.9
1932	12	14.9
1933	12	14.9
1934	22	14.9
1935	15	14.9
1936	7	14.9
1937	12	14.9
1938	13	14.9
1939	27	14.9
1940	15	10.6
1944	12	10.6
1945	8	10.6
1946	4	10.6
1947	9	10.6
1948	17	10.6
1949	9	10.6
1950	20	13.2
1951	9	13.2
1952	13	13.2
1953	16	13.2
1954	14	13.2
1955	12	13.2
1956	14	13.2
1957	12	13.2
1958	9	13.2
1959	13	13.2
1960	4	12.9
1961	12	12.9
1962	12	12.9
1963	25	12.9
1965	20	12.9
1966	8	12.9
1967	17	12.9
1968	6	12.9
1969	12	12.9
1970	10	13
1971	15	13
1972	6	13
1973	11	13
1974	22	13
1975	14	13

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

First to last qualifying date each year at Waterfall
Year	First date	Last date
1913	1913-01-01	1913-11-07
1914	1914-01-23	1914-12-03
1915	1915-01-04	1915-12-30
1916	1916-01-19	1916-12-18
1917	1917-01-03	1917-11-28
1918	1918-01-01	1918-12-03
1919	1919-03-12	1919-11-22
1920	1920-01-29	1920-12-25
1921	1921-02-02	1921-12-27
1922	1922-01-07	1922-12-19
1923	1923-02-10	1923-12-27
1924	1924-01-11	1924-09-23
1925	1925-01-20	1925-12-06
1926	1926-01-26	1926-12-27
1927	1927-03-16	1927-11-20
1928	1928-01-08	1928-12-20
1929	1929-01-18	1929-12-30
1930	1930-01-16	1930-10-04
1931	1931-01-11	1931-12-31
1932	1932-02-03	1932-11-10
1933	1933-02-22	1933-12-29
1934	1934-01-02	1934-12-24
1935	1935-01-29	1935-12-01
1936	1936-03-09	1936-11-14
1937	1937-01-27	1937-12-20
1938	1938-01-22	1938-12-31
1939	1939-01-21	1939-12-04
1940	1940-01-14	1940-11-10
1944	1944-01-15	1944-10-20
1945	1945-01-30	1945-07-12
1946	1946-03-15	1946-11-25
1947	1947-02-09	1947-12-23
1948	1948-01-28	1948-12-20
1949	1949-01-30	1949-12-11
1950	1950-01-08	1950-12-30
1951	1951-01-01	1951-10-21
1952	1952-01-31	1952-12-14
1953	1953-02-12	1953-12-19
1954	1954-01-18	1954-11-19
1955	1955-01-04	1955-12-18
1956	1956-01-09	1956-12-21
1957	1957-01-30	1957-12-30
1958	1958-01-17	1958-12-14
1959	1959-01-24	1959-12-03
1960	1960-01-24	1960-09-21
1961	1961-01-19	1961-12-16
1962	1962-01-19	1962-11-19
1963	1963-01-03	1963-12-12
1965	1965-01-29	1965-11-16
1966	1966-01-30	1966-11-05
1967	1967-01-30	1967-11-23
1968	1968-03-12	1968-11-14
1969	1969-02-25	1969-10-26
1970	1970-01-30	1970-12-24
1971	1971-01-29	1971-10-23
1972	1972-01-20	1972-06-23
1973	1973-02-18	1973-12-22
1974	1974-01-16	1974-11-29
1975	1975-01-23	1975-12-22

Every Fixed Threshold

Fixed thresholds at Waterfall
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	59	27	1939	14
25 mm (0.98 in): Days with 25 mm or more rain	56	7	1931	5
50 mm (1.97 in): Days with 50 mm or more rain	27	2	1913	2
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1913	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1913.

Download the Data

Data for Waterfall 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).

Waterfall Threshold Days by Year (SF000956350)

Key Facts for Waterfall Thresholds

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

Every Fixed Threshold

Download the Data

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