Umbercollie Threshold Days by Year (ASN00041105)

4 fixed thresholds counted per year at Umbercollie (ASN00041105): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Umbercollie Thresholds

Umbercollie: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 1947 with 29.
Umbercollie: days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 1950 with 13.
Umbercollie: days with 50 mm (1.97 in) or more of precipitation in 29 years, most in 1917 with 4.
Umbercollie: days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1910 with 1.
4 fixed thresholds have at least one qualifying day at Umbercollie.

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

48 years with a qualifying day

Days per year at Umbercollie with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 29 in 1947.

Days with 10 mm (0.39 in) or more of precipitation per year at Umbercollie
Year	Days	Decade average
1909	14	14
1910	23	17.2
1911	18	17.2
1913	15	17.2
1914	23	17.2
1915	5	17.2
1916	25	17.2
1917	27	17.2
1918	9	17.2
1919	10	17.2
1920	23	17
1921	24	17
1922	10	17
1923	12	17
1924	25	17
1925	17	17
1926	20	17
1927	16	17
1928	10	17
1929	13	17
1930	16	16.5
1931	19	16.5
1932	17	16.5
1933	20	16.5
1934	20	16.5
1935	14	16.5
1936	15	16.5
1937	13	16.5
1938	14	16.5
1939	17	16.5
1940	15	16
1941	15	16
1942	16	16
1943	17	16
1944	9	16
1945	15	16
1946	12	16
1947	29	16
1948	18	16
1949	14	16
1950	29	18.6
1951	16	18.6
1952	19	18.6
1953	20	18.6
1954	17	18.6
1955	14	18.6
1956	20	18.6
1957	14	18.6

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

First to last qualifying date each year at Umbercollie
Year	First date	Last date
1909	1909-02-21	1909-12-28
1910	1910-01-11	1910-12-12
1911	1911-01-09	1911-11-02
1913	1913-01-21	1913-12-19
1914	1914-02-25	1914-12-31
1915	1915-05-05	1915-12-11
1916	1916-02-01	1916-12-14
1917	1917-01-20	1917-12-25
1918	1918-01-02	1918-12-15
1919	1919-02-19	1919-12-02
1920	1920-01-01	1920-12-02
1921	1921-02-17	1921-12-26
1922	1922-01-13	1922-12-18
1923	1923-02-09	1923-12-27
1924	1924-01-05	1924-11-23
1925	1925-01-06	1925-11-20
1926	1926-01-01	1926-12-28
1927	1927-01-23	1927-12-11
1928	1928-01-06	1928-08-09
1929	1929-01-20	1929-12-03
1930	1930-01-25	1930-12-09
1931	1931-01-09	1931-12-09
1932	1932-01-04	1932-12-24
1933	1933-01-20	1933-12-06
1934	1934-01-04	1934-12-27
1935	1935-01-05	1935-12-09
1936	1936-01-09	1936-12-15
1937	1937-01-02	1937-12-29
1938	1938-01-04	1938-11-23
1939	1939-01-26	1939-12-27
1940	1940-01-29	1940-12-21
1941	1941-01-04	1941-11-12
1942	1942-01-11	1942-12-31
1943	1943-01-01	1943-12-28
1944	1944-01-12	1944-12-21
1945	1945-01-14	1945-12-19
1946	1946-01-19	1946-12-13
1947	1947-01-02	1947-12-20
1948	1948-01-02	1948-12-31
1949	1949-01-09	1949-11-28
1950	1950-01-18	1950-12-31
1951	1951-01-16	1951-12-20
1952	1952-02-20	1952-12-31
1953	1953-01-01	1953-11-24
1954	1954-01-15	1954-12-28
1955	1955-01-22	1955-12-20
1956	1956-01-20	1956-12-14
1957	1957-01-03	1957-11-03

Every Fixed Threshold

Fixed thresholds at Umbercollie
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	48	29	1947	14
25 mm (0.98 in): Days with 25 mm or more rain	48	13	1950	5
50 mm (1.97 in): Days with 50 mm or more rain	29	4	1917	1
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1910	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 Umbercollie 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).

Umbercollie Threshold Days by Year (ASN00041105)

Key Facts for Umbercollie Thresholds

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

Every Fixed Threshold

Download the Data

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