Diamond Springs Threshold Days by Year (USC00442368)

17 fixed thresholds counted per year at Diamond Springs (USC00442368): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Diamond Springs Thresholds

Diamond Springs: days with a maximum temperature at or above 30 C (86 F) in 70 years, most in 1941 with 105.
Diamond Springs: days with a maximum temperature at or above 90 F (32.2 C) in 70 years, most in 1941 with 70.
Diamond Springs: nights with a minimum temperature at or below 0 C (32 F) in 69 years, most in 1912 with 81.
Diamond Springs: nights with a minimum temperature at or above 20 C (68 F) in 69 years, most in 1959 with 93.
17 fixed thresholds have at least one qualifying day at Diamond Springs.

Days at or above 30 C (86 F)

70 years with a qualifying day

Days per year at Diamond Springs with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 105 in 1941.

Days at or above 30 C (86 F) per year at Diamond Springs
Year	Days	Decade average
1910	56	66.2
1911	87	66.2
1912	66	66.2
1913	52	66.2
1914	81	66.2
1915	74	66.2
1916	58	66.2
1917	61	66.2
1919	61	66.2
1920	46	55.2
1921	76	55.2
1922	44	55.2
1923	53	55.2
1924	44	55.2
1925	60	55.2
1926	71	55.2
1927	51	55.2
1928	48	55.2
1929	59	55.2
1930	77	74.8
1931	82	74.8
1932	80	74.8
1933	91	74.8
1934	87	74.8
1935	36	74.8
1936	60	74.8
1937	56	74.8
1938	77	74.8
1939	102	74.8
1940	66	81.6
1941	105	81.6
1942	96	81.6
1943	101	81.6
1944	85	81.6
1945	89	81.6
1946	69	81.6
1947	79	81.6
1948	65	81.6
1949	61	81.6
1950	51	71.3
1951	62	71.3
1952	84	71.3
1953	70	71.3
1954	84	71.3
1955	64	71.3
1956	79	71.3
1957	83	71.3
1958	66	71.3
1959	70	71.3
1960	62	53.1
1961	65	53.1
1962	47	53.1
1963	53	53.1
1964	48	53.1
1965	65	53.1
1966	51	53.1
1967	36	53.1
1968	54	53.1
1969	50	53.1
1970	60	52.1
1971	40	52.1
1972	31	52.1
1973	54	52.1
1974	37	52.1
1975	61	52.1
1976	52	52.1
1977	77	52.1
1978	59	52.1
1979	50	52.1
1980	72	72

For each year, a bar from the first to the last day at Diamond Springs meeting 30 C (86 F).

First to last qualifying date each year at Diamond Springs
Year	First date	Last date
1910	1910-03-30	1910-10-06
1911	1911-05-11	1911-10-07
1912	1912-05-06	1912-10-13
1913	1913-05-03	1913-09-08
1914	1914-04-29	1914-10-11
1915	1915-04-20	1915-09-21
1916	1916-04-13	1916-10-20
1917	1917-04-19	1917-09-09
1919	1919-04-15	1919-10-28
1920	1920-06-02	1920-09-26
1921	1921-03-21	1921-09-30
1922	1922-04-08	1922-10-05
1923	1923-06-02	1923-09-20
1924	1924-05-22	1924-09-02
1925	1925-04-25	1925-09-21
1926	1926-04-22	1926-10-05
1927	1927-04-20	1927-10-02
1928	1928-05-04	1928-10-12
1929	1929-04-06	1929-09-14
1930	1930-04-11	1930-09-27
1931	1931-06-05	1931-10-07
1932	1932-05-07	1932-09-23
1933	1933-05-13	1933-10-17
1934	1934-05-06	1934-09-30
1935	1935-06-11	1935-09-22
1936	1936-04-28	1936-10-10
1937	1937-04-18	1937-09-05
1938	1938-03-22	1938-10-20
1939	1939-03-25	1939-10-27
1940	1940-05-07	1940-10-15
1941	1941-04-14	1941-10-23
1942	1942-04-05	1942-09-27
1943	1943-04-28	1943-10-09
1944	1944-04-10	1944-10-07
1945	1945-03-16	1945-10-19
1946	1946-04-20	1946-10-31
1947	1947-04-06	1947-10-23
1948	1948-03-21	1948-09-21
1949	1949-05-06	1949-09-20
1950	1950-05-06	1950-11-01
1951	1951-04-15	1951-10-07
1952	1952-04-20	1952-10-02
1953	1953-04-25	1953-09-15
1954	1954-04-08	1954-10-13
1955	1955-04-19	1955-09-20
1956	1956-04-30	1956-09-24
1957	1957-04-21	1957-09-22
1958	1958-04-20	1958-10-10
1959	1959-04-08	1959-10-06
1960	1960-04-14	1960-09-20
1961	1961-04-24	1961-09-26
1962	1962-05-07	1962-09-15
1963	1963-04-03	1963-09-11
1964	1964-04-19	1964-09-12
1965	1965-05-03	1965-09-25
1966	1966-05-23	1966-09-07
1967	1967-04-03	1967-10-06
1968	1968-05-04	1968-09-26
1969	1969-05-09	1969-09-17
1970	1970-04-22	1970-10-04
1971	1971-05-20	1971-09-17
1972	1972-06-29	1972-09-28
1973	1973-05-29	1973-10-06
1974	1974-04-30	1974-09-30
1975	1975-05-25	1975-10-15
1976	1976-04-17	1976-09-10
1977	1977-04-13	1977-10-03
1978	1978-04-12	1978-09-23
1979	1979-06-01	1979-09-15
1980	1980-05-13	1980-09-24

Every Fixed Threshold

Fixed thresholds at Diamond Springs
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	70	105	1941	72
35 C (95 F): Days	64	34	1941	23
40 C (104 F): Days	4	1	1940	1
90 F (32.2 C): Days	70	70	1941	48
100 F (37.8 C): Days	20	8	1942	2
0 C (32 F): Ice days (max	45	15	1936	11
0 C (32 F): Frost days (min	69	81	1912	73
-10 C (14 F): Days with min	38	9	1970	3
20 C (68 F): Tropical nights (min	69	93	1959	67
25 C (77 F): Days with min	44	13	1951	1
10 mm (0.39 in): Days with 10 mm or more rain	67	56	1924	24
25 mm (0.98 in): Days with 25 mm or more rain	67	28	1979	5
50 mm (1.97 in): Days with 50 mm or more rain	64	7	1920	3
100 mm (3.94 in): Days with 100 mm or more rain	20	2	1933	2
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1964	1
10 cm (3.9 in): Days with 10 cm or more snowfall	16	4	1980	4
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1948	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1910.

Download the Data

Data for Diamond Springs 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).

Diamond Springs Threshold Days by Year (USC00442368)

Key Facts for Diamond Springs Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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