Suntop Threshold Days by Year

4 fixed thresholds counted per year at Suntop (ASN00065029): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Suntop Thresholds

Suntop: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 1916 with 35.
Suntop: days with 25 mm (0.98 in) or more of precipitation in 43 years, most in 1890 with 15.
Suntop: days with 50 mm (1.97 in) or more of precipitation in 30 years, most in 1890 with 3.
Suntop: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1890 with 1.
4 fixed thresholds have at least one qualifying day at Suntop.

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

44 years with a qualifying day

Days per year at Suntop with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 35 in 1916.

Days with 10 mm (0.39 in) or more of precipitation per year at Suntop
Year	Days	Decade average
1890	28	21.1
1892	24	21.1
1893	28	21.1
1896	19	21.1
1897	15	21.1
1898	20	21.1
1899	14	21.1
1900	27	17.4
1901	20	17.4
1902	12	17.4
1903	20	17.4
1904	17	17.4
1905	15	17.4
1907	14	17.4
1908	14	17.4
1909	18	17.4
1911	26	20.2
1912	13	20.2
1913	18	20.2
1914	15	20.2
1915	14	20.2
1916	35	20.2
1920	22	17
1921	24	17
1922	6	17
1923	13	17
1924	20	17
1925	18	17
1926	18	17
1927	13	17
1928	22	17
1929	14	17
1930	22	16.4
1931	21	16.4
1934	23	16.4
1935	14	16.4
1936	14	16.4
1937	13	16.4
1938	11	16.4
1939	13	16.4
1940	7	12
1941	16	12
1942	13	12
1943	12	12

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

First to last qualifying date each year at Suntop
Year	First date	Last date
1890	1890-02-02	1890-12-19
1892	1892-01-12	1892-12-30
1893	1893-01-22	1893-12-27
1896	1896-02-11	1896-12-03
1897	1897-01-03	1897-12-20
1898	1898-01-13	1898-12-24
1899	1899-01-18	1899-11-05
1900	1900-01-11	1900-12-04
1901	1901-01-02	1901-10-28
1902	1902-03-11	1902-12-18
1903	1903-01-05	1903-12-22
1904	1904-01-03	1904-12-13
1905	1905-02-17	1905-10-23
1907	1907-01-27	1907-12-18
1908	1908-01-09	1908-12-13
1909	1909-01-21	1909-12-25
1911	1911-01-10	1911-12-05
1912	1912-01-05	1912-08-27
1913	1913-01-03	1913-10-28
1914	1914-02-25	1914-12-31
1915	1915-01-01	1915-12-29
1916	1916-02-22	1916-12-26
1920	1920-01-05	1920-12-25
1921	1921-02-25	1921-12-27
1922	1922-01-04	1922-12-10
1923	1923-06-04	1923-12-27
1924	1924-01-06	1924-11-23
1925	1925-01-05	1925-11-20
1926	1926-01-25	1926-12-28
1927	1927-01-07	1927-12-09
1928	1928-01-19	1928-11-05
1929	1929-02-06	1929-12-27
1930	1930-01-24	1930-12-17
1931	1931-01-25	1931-12-03
1934	1934-01-19	1934-12-20
1935	1935-01-05	1935-12-01
1936	1936-01-05	1936-12-15
1937	1937-01-11	1937-11-01
1938	1938-01-16	1938-11-09
1939	1939-01-04	1939-11-02
1940	1940-04-12	1940-12-21
1941	1941-01-02	1941-09-23
1942	1942-02-02	1942-11-22
1943	1943-02-03	1943-11-18

Every Fixed Threshold

Fixed thresholds at Suntop
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	44	35	1916	12
25 mm (0.98 in): Days with 25 mm or more rain	43	15	1890	4
50 mm (1.97 in): Days with 50 mm or more rain	30	3	1890	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1890	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1890.

Download the Data

Data for Suntop 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).

Suntop Threshold Days by Year

Key Facts for Suntop Thresholds

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

Every Fixed Threshold

Download the Data

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