Rosedale Threshold Days by Year

3 fixed thresholds counted per year at Rosedale (ASN00023019): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rosedale Thresholds

Rosedale: days with 10 mm (0.39 in) or more of precipitation in 62 years, most in 1910 with 26.
Rosedale: days with 25 mm (0.98 in) or more of precipitation in 49 years, most in 1941 with 5.
Rosedale: days with 50 mm (1.97 in) or more of precipitation in 8 years, most in 1946 with 2.
3 fixed thresholds have at least one qualifying day at Rosedale.

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

62 years with a qualifying day

Days per year at Rosedale with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1910.

Days with 10 mm (0.39 in) or more of precipitation per year at Rosedale
Year	Days	Decade average
1900	13	12.9
1901	9	12.9
1902	7	12.9
1903	16	12.9
1904	9	12.9
1905	17	12.9
1906	14	12.9
1907	14	12.9
1908	11	12.9
1909	19	12.9
1910	26	14.1
1911	7	14.1
1912	14	14.1
1913	12	14.1
1914	5	14.1
1915	18	14.1
1916	18	14.1
1917	24	14.1
1918	9	14.1
1919	8	14.1
1920	16	13
1921	11	13
1922	14	13
1923	24	13
1924	16	13
1925	9	13
1926	16	13
1927	10	13
1928	10	13
1929	4	13
1930	11	11.1
1931	10	11.1
1932	18	11.1
1934	8	11.1
1935	14	11.1
1936	7	11.1
1937	15	11.1
1938	5	11.1
1939	12	11.1
1940	9	11.9
1941	12	11.9
1942	17	11.9
1943	10	11.9
1944	8	11.9
1945	14	11.9
1946	14	11.9
1947	15	11.9
1948	11	11.9
1949	9	11.9
1950	12	15.6
1951	20	15.6
1952	24	15.6
1953	13	15.6
1954	9	15.6
1961	9	11.9
1962	16	11.9
1963	16	11.9
1964	12	11.9
1965	7	11.9
1966	10	11.9
1967	3	11.9
1968	22	11.9

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

First to last qualifying date each year at Rosedale
Year	First date	Last date
1900	1900-03-15	1900-11-17
1901	1901-04-03	1901-12-31
1902	1902-02-01	1902-12-18
1903	1903-02-15	1903-12-27
1904	1904-01-03	1904-11-02
1905	1905-01-03	1905-10-30
1906	1906-03-24	1906-11-19
1907	1907-02-06	1907-11-23
1908	1908-05-14	1908-10-17
1909	1909-02-25	1909-11-13
1910	1910-01-06	1910-12-23
1911	1911-03-19	1911-12-05
1912	1912-02-23	1912-12-08
1913	1913-02-14	1913-12-23
1914	1914-02-28	1914-11-25
1915	1915-04-09	1915-10-22
1916	1916-03-07	1916-11-25
1917	1917-02-06	1917-12-12
1918	1918-02-07	1918-10-04
1919	1919-02-16	1919-12-27
1920	1920-03-07	1920-12-27
1921	1921-01-02	1921-12-03
1922	1922-01-06	1922-12-28
1923	1923-05-08	1923-12-18
1924	1924-02-16	1924-11-11
1925	1925-04-05	1925-09-28
1926	1926-02-25	1926-10-14
1927	1927-03-23	1927-12-02
1928	1928-01-26	1928-10-06
1929	1929-06-06	1929-12-28
1930	1930-02-04	1930-10-21
1931	1931-03-13	1931-09-03
1932	1932-01-09	1932-12-15
1934	1934-07-04	1934-12-08
1935	1935-01-05	1935-10-20
1936	1936-01-10	1936-12-19
1937	1937-01-19	1937-12-11
1938	1938-04-15	1938-08-28
1939	1939-02-25	1939-11-29
1940	1940-01-05	1940-12-19
1941	1941-01-24	1941-11-19
1942	1942-01-20	1942-11-03
1943	1943-02-17	1943-12-17
1944	1944-05-02	1944-12-21
1945	1945-01-31	1945-11-19
1946	1946-01-16	1946-12-26
1947	1947-03-11	1947-12-25
1948	1948-04-11	1948-12-25
1949	1949-02-20	1949-11-20
1950	1950-02-01	1950-11-03
1951	1951-04-21	1951-12-20
1952	1952-01-16	1952-11-27
1953	1953-05-19	1953-12-06
1954	1954-04-11	1954-12-05
1961	1961-02-08	1961-11-17
1962	1962-01-17	1962-12-30
1963	1963-01-14	1963-09-12
1964	1964-04-08	1964-12-25
1965	1965-04-17	1965-11-11
1966	1966-03-16	1966-12-04
1967	1967-06-14	1967-08-13
1968	1968-01-20	1968-11-06

Every Fixed Threshold

Fixed thresholds at Rosedale
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	62	26	1910	22
25 mm (0.98 in): Days with 25 mm or more rain	49	5	1941	1
50 mm (1.97 in): Days with 50 mm or more rain	8	2	1946	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 Rosedale 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).

Rosedale Threshold Days by Year

Key Facts for Rosedale Thresholds

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

Every Fixed Threshold

Download the Data

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