Upper Urara (the Knoll) Threshold Days by Year (ASN00059011)

5 fixed thresholds counted per year at Upper Urara (the Knoll) (ASN00059011): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Upper Urara (the Knoll) Thresholds

Upper Urara (the Knoll): days with 10 mm (0.39 in) or more of precipitation in 60 years, most in 1921 with 66.
Upper Urara (the Knoll): days with 25 mm (0.98 in) or more of precipitation in 60 years, most in 1950 with 44.
Upper Urara (the Knoll): days with 50 mm (1.97 in) or more of precipitation in 58 years, most in 1950 with 21.
Upper Urara (the Knoll): days with 100 mm (3.94 in) or more of precipitation in 48 years, most in 1921 with 8.
5 fixed thresholds have at least one qualifying day at Upper Urara (the Knoll).

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

60 years with a qualifying day

Days per year at Upper Urara (the Knoll) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 66 in 1921.

Days with 10 mm (0.39 in) or more of precipitation per year at Upper Urara (the Knoll)
Year	Days	Decade average
1909	33	33
1910	37	37.5
1911	42	37.5
1912	35	37.5
1913	37	37.5
1914	59	37.5
1915	16	37.5
1916	39	37.5
1917	37	37.5
1918	36	37.5
1919	37	37.5
1920	41	43
1921	66	43
1922	41	43
1923	41	43
1924	37	43
1925	51	43
1926	38	43
1927	33	43
1929	39	43
1930	48	42.8
1931	45	42.8
1932	27	42.8
1933	53	42.8
1934	52	42.8
1935	40	42.8
1936	24	42.8
1937	56	42.8
1938	40	42.8
1940	28	33.6
1942	36	33.6
1944	22	33.6
1946	27	33.6
1947	42	33.6
1948	38	33.6
1949	42	33.6
1950	64	45.2
1951	31	45.2
1952	30	45.2
1953	30	45.2
1954	59	45.2
1955	53	45.2
1956	51	45.2
1957	33	45.2
1958	42	45.2
1959	59	45.2
1960	35	44
1961	45	44
1962	61	44
1963	60	44
1964	41	44
1965	32	44
1966	31	44
1967	60	44
1968	33	44
1969	42	44
1970	40	46
1971	46	46
1972	49	46
1973	49	46

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

First to last qualifying date each year at Upper Urara (the Knoll)
Year	First date	Last date
1909	1909-02-17	1909-12-28
1910	1910-01-01	1910-11-18
1911	1911-01-02	1911-12-03
1912	1912-01-06	1912-12-31
1913	1913-01-04	1913-12-20
1914	1914-01-05	1914-12-31
1915	1915-02-07	1915-12-16
1916	1916-01-11	1916-12-27
1917	1917-01-16	1917-12-29
1918	1918-01-03	1918-12-22
1919	1919-01-04	1919-12-31
1920	1920-01-01	1920-12-29
1921	1921-01-06	1921-12-31
1922	1922-01-01	1922-12-15
1923	1923-01-05	1923-12-29
1924	1924-01-22	1924-12-17
1925	1925-01-05	1925-12-31
1926	1926-01-06	1926-12-30
1927	1927-01-10	1927-12-25
1929	1929-01-01	1929-11-19
1930	1930-01-01	1930-12-28
1931	1931-01-09	1931-12-23
1932	1932-01-06	1932-12-06
1933	1933-01-15	1933-12-30
1934	1934-01-04	1934-12-26
1935	1935-01-06	1935-12-20
1936	1936-01-06	1936-12-29
1937	1937-01-04	1937-12-30
1938	1938-01-15	1938-11-27
1940	1940-01-03	1940-12-16
1942	1942-01-10	1942-12-29
1944	1944-01-01	1944-12-27
1946	1946-01-03	1946-12-15
1947	1947-01-04	1947-12-15
1948	1948-01-03	1948-12-30
1949	1949-01-04	1949-12-29
1950	1950-01-18	1950-12-31
1951	1951-01-08	1951-12-19
1952	1952-01-07	1952-12-31
1953	1953-01-17	1953-12-14
1954	1954-01-03	1954-12-18
1955	1955-01-04	1955-12-24
1956	1956-01-20	1956-12-23
1957	1957-01-11	1957-12-10
1958	1958-01-01	1958-12-30
1959	1959-01-06	1959-12-27
1960	1960-01-20	1960-11-23
1961	1961-01-15	1961-12-18
1962	1962-01-01	1962-12-31
1963	1963-01-01	1963-12-31
1964	1964-01-12	1964-12-30
1965	1965-01-14	1965-12-19
1966	1966-02-17	1966-12-07
1967	1967-01-01	1967-12-06
1968	1968-01-05	1968-12-30
1969	1969-01-01	1969-12-31
1970	1970-01-01	1970-12-27
1971	1971-01-13	1971-12-16
1972	1972-01-07	1972-12-27
1973	1973-01-04	1973-12-21

Every Fixed Threshold

Fixed thresholds at Upper Urara (the Knoll)
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	60	66	1921	49
25 mm (0.98 in): Days with 25 mm or more rain	60	44	1950	22
50 mm (1.97 in): Days with 50 mm or more rain	58	21	1950	7
100 mm (3.94 in): Days with 100 mm or more rain	48	8	1921	2
200 mm (7.87 in): Days with 200 mm or more rain	19	2	1921	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1909.

Download the Data

Data for Upper Urara (the Knoll) 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).

Upper Urara (the Knoll) Threshold Days by Year (ASN00059011)

Key Facts for Upper Urara (the Knoll) Thresholds

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

Every Fixed Threshold

Download the Data

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