Boonville Threshold Days by Year (USC00230812)

5 fixed thresholds counted per year at Boonville (USC00230812): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Boonville Thresholds

Boonville: days with 10 mm (0.39 in) or more of precipitation in 54 years, most in 1900 with 50.
Boonville: days with 25 mm (0.98 in) or more of precipitation in 54 years, most in 1898 with 19.
Boonville: days with 50 mm (1.97 in) or more of precipitation in 44 years, most in 1904 with 6.
Boonville: days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1942 with 2.
5 fixed thresholds have at least one qualifying day at Boonville.

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

54 years with a qualifying day

Days per year at Boonville with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 50 in 1900.

Days with 10 mm (0.39 in) or more of precipitation per year at Boonville
Year	Days	Decade average
1895	34	38.6
1896	40	38.6
1897	35	38.6
1898	49	38.6
1899	35	38.6
1900	50	34.7
1901	26	34.7
1902	34	34.7
1903	30	34.7
1904	39	34.7
1905	32	34.7
1906	27	34.7
1907	33	34.7
1908	40	34.7
1909	36	34.7
1910	31	31.2
1911	30	31.2
1912	34	31.2
1913	36	31.2
1914	24	31.2
1915	41	31.2
1916	32	31.2
1917	24	31.2
1918	26	31.2
1919	34	31.2
1920	24	34.1
1921	40	34.1
1922	32	34.1
1923	37	34.1
1924	36	34.1
1925	35	34.1
1926	31	34.1
1927	38	34.1
1928	33	34.1
1929	35	34.1
1930	25	28.4
1931	28	28.4
1932	24	28.4
1933	27	28.4
1934	23	28.4
1935	40	28.4
1936	19	28.4
1937	30	28.4
1938	35	28.4
1939	33	28.4
1940	25	35
1941	40	35
1942	37	35
1943	33	35
1944	34	35
1945	38	35
1946	32	35
1947	37	35
1949	39	35

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

First to last qualifying date each year at Boonville
Year	First date	Last date
1895	1895-01-21	1895-12-25
1896	1896-01-23	1896-12-18
1897	1897-01-02	1897-12-14
1898	1898-01-11	1898-12-22
1899	1899-02-11	1899-12-12
1900	1900-01-17	1900-11-25
1901	1901-01-10	1901-12-19
1902	1902-02-27	1902-12-20
1903	1903-01-02	1903-11-11
1904	1904-01-21	1904-12-27
1905	1905-01-11	1905-11-19
1906	1906-01-03	1906-12-30
1907	1907-01-15	1907-12-23
1908	1908-02-05	1908-12-30
1909	1909-01-28	1909-12-05
1910	1910-01-05	1910-12-28
1911	1911-02-18	1911-12-26
1912	1912-02-26	1912-12-02
1913	1913-01-07	1913-12-23
1914	1914-01-29	1914-12-29
1915	1915-01-31	1915-12-25
1916	1916-01-12	1916-11-23
1917	1917-03-13	1917-10-18
1918	1918-02-28	1918-12-24
1919	1919-02-14	1919-11-29
1920	1920-03-12	1920-10-25
1921	1921-01-14	1921-12-02
1922	1922-01-04	1922-12-31
1923	1923-01-14	1923-12-13
1924	1924-01-16	1924-12-18
1925	1925-01-16	1925-12-05
1926	1926-01-03	1926-12-07
1927	1927-01-13	1927-12-28
1928	1928-01-24	1928-12-17
1929	1929-01-05	1929-11-28
1930	1930-01-01	1930-11-30
1931	1931-02-07	1931-12-31
1932	1932-01-01	1932-12-24
1933	1933-03-06	1933-12-20
1934	1934-01-04	1934-11-30
1935	1935-01-08	1935-11-27
1936	1936-02-26	1936-12-31
1937	1937-01-08	1937-12-04
1938	1938-01-24	1938-12-03
1939	1939-01-24	1939-12-24
1940	1940-01-07	1940-12-31
1941	1941-01-01	1941-12-23
1942	1942-02-06	1942-12-27
1943	1943-02-03	1943-12-10
1944	1944-02-11	1944-12-10
1945	1945-02-17	1945-12-25
1946	1946-01-05	1946-11-10
1947	1947-01-30	1947-12-04
1949	1949-01-11	1949-12-22

Every Fixed Threshold

Fixed thresholds at Boonville
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	54	50	1900	39
25 mm (0.98 in): Days with 25 mm or more rain	54	19	1898	12
50 mm (1.97 in): Days with 50 mm or more rain	44	6	1904	4
100 mm (3.94 in): Days with 100 mm or more rain	4	2	1942	2
10 cm (3.9 in): Days with 10 cm or more snowfall	1	1	1949	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1895.

Download the Data

Data for Boonville 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).

Boonville Threshold Days by Year (USC00230812)

Key Facts for Boonville Thresholds

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

Every Fixed Threshold

Download the Data

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