Sterling Threshold Days by Year (USC00198154)

7 fixed thresholds counted per year at Sterling (USC00198154): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sterling Thresholds

Sterling: days with 10 mm (0.39 in) or more of precipitation in 46 years, most in 1983 with 55.
Sterling: days with 25 mm (0.98 in) or more of precipitation in 46 years, most in 1983 with 26.
Sterling: days with 50 mm (1.97 in) or more of precipitation in 41 years, most in 1920 with 8.
Sterling: days with 10 cm (3.9 in) or more of snowfall in 36 years, most in 1945 with 11.
7 fixed thresholds have at least one qualifying day at Sterling.

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

46 years with a qualifying day

Days per year at Sterling with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 55 in 1983.

Days with 10 mm (0.39 in) or more of precipitation per year at Sterling
Year	Days	Decade average
1896	44	42
1897	40	42
1910	28	31.6
1911	35	31.6
1912	33	31.6
1913	29	31.6
1914	34	31.6
1915	32	31.6
1916	33	31.6
1917	33	31.6
1918	27	31.6
1920	40	37
1921	37	37
1922	42	37
1923	35	37
1924	32	37
1927	39	37
1928	34	37
1931	35	34.5
1932	35	34.5
1935	27	34.5
1936	38	34.5
1938	36	34.5
1939	36	34.5
1940	34	33.9
1941	26	33.9
1942	41	33.9
1943	31	33.9
1944	29	33.9
1945	43	33.9
1946	33	33.9
1947	38	33.9
1948	30	33.9
1955	21	23.7
1956	28	23.7
1957	22	23.7
1974	29	26
1976	21	26
1977	27	26
1978	27	26
1980	26	41
1981	36	41
1982	40	41
1983	55	41
1984	46	41
1985	43	41

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

First to last qualifying date each year at Sterling
Year	First date	Last date
1896	1896-01-10	1896-12-16
1897	1897-01-05	1897-12-31
1910	1910-01-07	1910-12-24
1911	1911-01-04	1911-12-23
1912	1912-01-09	1912-12-30
1913	1913-01-03	1913-12-26
1914	1914-01-21	1914-12-29
1915	1915-01-07	1915-12-26
1916	1916-01-02	1916-12-22
1917	1917-01-04	1917-12-14
1918	1918-01-07	1918-12-25
1920	1920-01-09	1920-12-27
1921	1921-01-06	1921-12-25
1922	1922-01-11	1922-12-29
1923	1923-01-01	1923-12-28
1924	1924-01-03	1924-12-09
1927	1927-01-11	1927-12-31
1928	1928-01-20	1928-12-28
1931	1931-01-06	1931-12-25
1932	1932-01-03	1932-12-28
1935	1935-01-01	1935-12-15
1936	1936-01-03	1936-12-31
1938	1938-01-07	1938-12-27
1939	1939-01-06	1939-12-20
1940	1940-01-13	1940-12-30
1941	1941-01-04	1941-12-24
1942	1942-01-02	1942-12-30
1943	1943-01-19	1943-12-27
1944	1944-01-07	1944-12-28
1945	1945-01-02	1945-12-31
1946	1946-01-10	1946-12-30
1947	1947-01-04	1947-12-27
1948	1948-01-03	1948-11-11
1955	1955-01-06	1955-11-14
1956	1956-02-07	1956-12-12
1957	1957-01-07	1957-12-21
1974	1974-01-09	1974-12-26
1976	1976-01-04	1976-12-29
1977	1977-01-08	1977-12-01
1978	1978-01-09	1978-12-25
1980	1980-01-12	1980-12-16
1981	1981-02-03	1981-12-28
1982	1982-01-01	1982-12-24
1983	1983-01-06	1983-12-29
1984	1984-01-11	1984-12-21
1985	1985-01-02	1985-12-13

Every Fixed Threshold

Fixed thresholds at Sterling
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	46	55	1983	43
25 mm (0.98 in): Days with 25 mm or more rain	46	26	1983	13
50 mm (1.97 in): Days with 50 mm or more rain	41	8	1920	3
100 mm (3.94 in): Days with 100 mm or more rain	10	2	1932	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1938	1
10 cm (3.9 in): Days with 10 cm or more snowfall	36	11	1945	6
25 cm (9.8 in): Days with 25 cm or more snowfall	18	4	1945	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1896.

Download the Data

Data for Sterling 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).

Sterling Threshold Days by Year (USC00198154)

Key Facts for Sterling Thresholds

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

Every Fixed Threshold

Download the Data

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