Castledene Threshold Days by Year (ASN00009517)

4 fixed thresholds counted per year at Castledene (ASN00009517): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Castledene Thresholds

Castledene: days with 10 mm (0.39 in) or more of precipitation in 34 years, most in 1926 with 48.
Castledene: days with 25 mm (0.98 in) or more of precipitation in 34 years, most in 1963 with 16.
Castledene: days with 50 mm (1.97 in) or more of precipitation in 20 years, most in 1945 with 4.
Castledene: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1962 with 1.
4 fixed thresholds have at least one qualifying day at Castledene.

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

34 years with a qualifying day

Days per year at Castledene with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 48 in 1926.

Days with 10 mm (0.39 in) or more of precipitation per year at Castledene
Year	Days	Decade average
1920	30	33.9
1921	34	33.9
1922	35	33.9
1923	39	33.9
1924	33	33.9
1925	24	33.9
1926	48	33.9
1927	38	33.9
1928	33	33.9
1929	25	33.9
1930	34	33.7
1931	29	33.7
1932	27	33.7
1933	39	33.7
1934	32	33.7
1935	33	33.7
1939	42	33.7
1941	41	35.3
1942	44	35.3
1943	31	35.3
1944	26	35.3
1945	38	35.3
1946	41	35.3
1947	34	35.3
1948	27	35.3
1961	36	32.8
1962	31	32.8
1963	46	32.8
1964	39	32.8
1965	39	32.8
1966	22	32.8
1967	39	32.8
1968	22	32.8
1969	21	32.8

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

First to last qualifying date each year at Castledene
Year	First date	Last date
1920	1920-03-28	1920-10-09
1921	1921-02-19	1921-12-08
1922	1922-02-23	1922-12-06
1923	1923-01-20	1923-09-24
1924	1924-02-02	1924-11-10
1925	1925-01-16	1925-11-10
1926	1926-02-24	1926-11-27
1927	1927-01-11	1927-10-24
1928	1928-01-09	1928-12-21
1929	1929-03-17	1929-11-10
1930	1930-03-27	1930-11-01
1931	1931-03-11	1931-10-06
1932	1932-03-28	1932-10-29
1933	1933-04-09	1933-10-19
1934	1934-03-04	1934-09-26
1935	1935-04-05	1935-10-25
1939	1939-01-21	1939-11-25
1941	1941-03-15	1941-11-16
1942	1942-03-01	1942-10-22
1943	1943-01-31	1943-10-20
1944	1944-04-29	1944-12-07
1945	1945-03-26	1945-12-24
1946	1946-03-20	1946-12-23
1947	1947-02-17	1947-11-26
1948	1948-04-22	1948-12-24
1961	1961-01-26	1961-12-15
1962	1962-02-14	1962-12-06
1963	1963-01-10	1963-10-16
1964	1964-05-04	1964-12-19
1965	1965-03-26	1965-12-20
1966	1966-01-03	1966-12-27
1967	1967-03-15	1967-11-27
1968	1968-04-14	1968-12-01
1969	1969-03-13	1969-11-23

Every Fixed Threshold

Fixed thresholds at Castledene
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	34	48	1926	21
25 mm (0.98 in): Days with 25 mm or more rain	34	16	1963	9
50 mm (1.97 in): Days with 50 mm or more rain	20	4	1945	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1962	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1920.

Download the Data

Data for Castledene 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).

Castledene Threshold Days by Year (ASN00009517)

Key Facts for Castledene Thresholds

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

Every Fixed Threshold

Download the Data

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