Robertsons Mount Threshold Days by Year

4 fixed thresholds counted per year at Robertsons Mount (ASN00055299): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Robertsons Mount Thresholds

Robertsons Mount: days with 10 mm (0.39 in) or more of precipitation in 38 years, most in 1890 with 34.
Robertsons Mount: days with 25 mm (0.98 in) or more of precipitation in 38 years, most in 1890 with 15.
Robertsons Mount: days with 50 mm (1.97 in) or more of precipitation in 17 years, most in 1890 with 5.
Robertsons Mount: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1882 with 1.
4 fixed thresholds have at least one qualifying day at Robertsons Mount.

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

38 years with a qualifying day

Days per year at Robertsons Mount with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 1890.

Days with 10 mm (0.39 in) or more of precipitation per year at Robertsons Mount
Year	Days	Decade average
1881	18	16.8
1882	23	16.8
1883	14	16.8
1884	17	16.8
1885	13	16.8
1886	22	16.8
1888	11	16.8
1889	16	16.8
1890	34	20.9
1891	23	20.9
1892	22	20.9
1893	26	20.9
1894	27	20.9
1895	17	20.9
1896	18	20.9
1897	13	20.9
1898	11	20.9
1899	18	20.9
1900	15	18.4
1901	15	18.4
1902	11	18.4
1903	21	18.4
1904	18	18.4
1905	22	18.4
1906	24	18.4
1907	16	18.4
1908	19	18.4
1909	23	18.4
1910	19	15.4
1911	10	15.4
1912	11	15.4
1913	20	15.4
1914	13	15.4
1915	11	15.4
1916	24	15.4
1917	23	15.4
1918	12	15.4
1919	11	15.4

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

First to last qualifying date each year at Robertsons Mount
Year	First date	Last date
1881	1881-01-12	1881-11-16
1882	1882-01-15	1882-12-31
1883	1883-01-13	1883-11-27
1884	1884-02-01	1884-12-11
1885	1885-01-18	1885-12-24
1886	1886-04-12	1886-12-14
1888	1888-01-25	1888-10-09
1889	1889-01-27	1889-11-13
1890	1890-01-11	1890-12-22
1891	1891-01-11	1891-12-28
1892	1892-01-11	1892-12-27
1893	1893-01-22	1893-12-15
1894	1894-01-05	1894-12-29
1895	1895-01-16	1895-12-17
1896	1896-01-21	1896-12-18
1897	1897-01-01	1897-12-19
1898	1898-01-02	1898-12-31
1899	1899-01-11	1899-11-07
1900	1900-01-20	1900-12-04
1901	1901-03-06	1901-11-30
1902	1902-01-02	1902-12-16
1903	1903-03-19	1903-12-25
1904	1904-02-24	1904-11-13
1905	1905-01-22	1905-12-31
1906	1906-01-09	1906-11-29
1907	1907-01-09	1907-12-27
1908	1908-01-31	1908-12-11
1909	1909-01-20	1909-12-23
1910	1910-01-10	1910-12-10
1911	1911-01-11	1911-12-29
1912	1912-01-05	1912-10-22
1913	1913-01-11	1913-12-18
1914	1914-01-19	1914-12-31
1915	1915-04-03	1915-12-15
1916	1916-01-28	1916-12-12
1917	1917-01-12	1917-12-28
1918	1918-01-11	1918-11-26
1919	1919-01-07	1919-12-28

Every Fixed Threshold

Fixed thresholds at Robertsons Mount
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	38	34	1890	11
25 mm (0.98 in): Days with 25 mm or more rain	38	15	1890	1
50 mm (1.97 in): Days with 50 mm or more rain	17	5	1890	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1882	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1881.

Download the Data

Data for Robertsons Mount 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).

Robertsons Mount Threshold Days by Year

Key Facts for Robertsons Mount Thresholds

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

Every Fixed Threshold

Download the Data

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