Calaveras Big Trees Threshold Days by Year

17 fixed thresholds counted per year at Calaveras Big Trees (USC00041277): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Calaveras Big Trees Thresholds

Calaveras Big Trees: days with 10 mm (0.39 in) or more of precipitation in 85 years, most in 1983 with 67.
Calaveras Big Trees: days with 25 mm (0.98 in) or more of precipitation in 85 years, most in 1983 with 39.
Calaveras Big Trees: days with 50 mm (1.97 in) or more of precipitation in 85 years, most in 1983 with 19.
Calaveras Big Trees: nights with a minimum temperature at or below 0 C (32 F) in 80 years, most in 1971 with 201.
17 fixed thresholds have at least one qualifying day at Calaveras Big Trees.

Days at or above 30 C (86 F)

79 years with a qualifying day

Days per year at Calaveras Big Trees with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 102 in 1932.

Days at or above 30 C (86 F) per year at Calaveras Big Trees
Year	Days	Decade average
1930	86	65.6
1931	87	65.6
1932	102	65.6
1933	73	65.6
1934	52	65.6
1936	48	65.6
1937	50	65.6
1938	32	65.6
1939	60	65.6
1940	48	39.8
1941	30	39.8
1942	60	39.8
1943	69	39.8
1944	36	39.8
1945	45	39.8
1946	38	39.8
1947	21	39.8
1948	17	39.8
1949	34	39.8
1950	32	20.7
1951	21	20.7
1952	6	20.7
1953	15	20.7
1954	18	20.7
1955	24	20.7
1956	11	20.7
1957	21	20.7
1958	16	20.7
1959	43	20.7
1960	47	30.9
1961	45	30.9
1962	20	30.9
1963	12	30.9
1964	38	30.9
1965	12	30.9
1966	27	30.9
1967	45	30.9
1968	29	30.9
1969	34	30.9
1970	43	33.4
1971	34	33.4
1972	28	33.4
1973	36	33.4
1974	34	33.4
1975	26	33.4
1976	20	33.4
1977	53	33.4
1978	32	33.4
1979	28	33.4
1980	27	24.6
1981	49	24.6
1982	13	24.6
1983	19	24.6
1984	37	24.6
1985	28	24.6
1986	11	24.6
1987	17	24.6
1988	38	24.6
1989	7	24.6
1990	18	9.9
1991	9	9.9
1992	11	9.9
1993	2	9.9
1994	14	9.9
1995	7	9.9
1996	13	9.9
1997	5	9.9
1998	17	9.9
1999	3	9.9
2000	7	10.1
2001	9	10.1
2002	13	10.1
2003	12	10.1
2004	5	10.1
2005	13	10.1
2006	17	10.1
2007	5	10.1
2015	19	19
2026	7	7

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

First to last qualifying date each year at Calaveras Big Trees
Year	First date	Last date
1930	1930-05-26	1930-11-04
1931	1931-04-20	1931-11-03
1932	1932-06-20	1932-11-19
1933	1933-05-27	1933-10-24
1934	1934-06-29	1934-10-13
1936	1936-06-21	1936-09-24
1937	1937-06-25	1937-09-19
1938	1938-06-25	1938-09-16
1939	1939-06-12	1939-09-23
1940	1940-06-10	1940-08-22
1941	1941-07-03	1941-08-23
1942	1942-06-14	1942-08-23
1943	1943-05-26	1943-10-02
1944	1944-05-25	1944-09-10
1945	1945-06-17	1945-09-13
1946	1946-06-19	1946-08-10
1947	1947-06-18	1947-09-23
1948	1948-06-29	1948-09-16
1949	1949-06-10	1949-09-23
1950	1950-05-30	1950-09-05
1951	1951-07-09	1951-09-16
1952	1952-07-06	1952-09-02
1953	1953-07-07	1953-09-16
1954	1954-06-22	1954-09-10
1955	1955-06-09	1955-09-07
1956	1956-06-27	1956-09-02
1957	1957-06-05	1957-09-08
1958	1958-07-10	1958-09-07
1959	1959-06-20	1959-10-26
1960	1960-06-01	1960-09-27
1961	1961-06-14	1961-08-23
1962	1962-06-20	1962-09-18
1963	1963-07-14	1963-10-02
1964	1964-06-24	1964-10-08
1965	1965-07-06	1965-10-09
1966	1966-06-14	1966-09-07
1967	1967-06-30	1967-09-02
1968	1968-06-17	1968-09-27
1969	1969-07-17	1969-09-04
1970	1970-06-02	1970-10-03
1971	1971-07-14	1971-09-17
1972	1972-06-30	1972-08-26
1973	1973-05-30	1973-08-21
1974	1974-06-29	1974-09-25
1975	1975-06-14	1975-09-08
1976	1976-05-14	1976-09-10
1977	1977-06-01	1977-09-11
1978	1978-06-07	1978-09-03
1979	1979-06-11	1979-09-16
1980	1980-07-18	1980-10-04
1981	1981-06-05	1981-09-12
1982	1982-07-23	1982-09-08
1983	1983-05-28	1983-09-13
1984	1984-05-28	1984-09-19
1985	1985-06-12	1985-08-26
1986	1986-06-24	1986-09-06
1987	1987-06-26	1987-09-22
1988	1988-06-21	1988-09-08
1989	1989-06-22	1989-07-21
1990	1990-06-21	1990-09-12
1991	1991-07-03	1991-09-05
1992	1992-08-11	1992-08-21
1993	1993-08-02	1993-08-03
1994	1994-06-29	1994-08-18
1995	1995-06-26	1995-08-04
1996	1996-07-26	1996-08-31
1997	1997-07-10	1997-08-09
1998	1998-07-17	1998-09-03
1999	1999-07-02	1999-07-13
2000	2000-06-14	2000-08-03
2001	2001-07-03	2001-08-29
2002	2002-07-10	2002-08-17
2003	2003-07-17	2003-09-04
2004	2004-08-10	2004-08-19
2005	2005-07-14	2005-08-10
2006	2006-06-24	2006-07-28
2007	2007-07-05	2007-08-30
2015	2015-06-25	2015-09-11
2026	2026-07-11	2026-08-10

Every Fixed Threshold

Fixed thresholds at Calaveras Big Trees
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	79	102	1932	7
35 C (95 F): Days	27	37	1932	1
40 C (104 F): Days	3	7	1931	6
90 F (32.2 C): Days	69	80	1932	5
100 F (37.8 C): Days	6	21	1931	1
0 C (32 F): Ice days (max	73	19	2006	7
0 C (32 F): Frost days (min	80	201	1971	20
-10 C (14 F): Days with min	53	16	1949	2
20 C (68 F): Tropical nights (min	4	2	1931	5
10 mm (0.39 in): Days with 10 mm or more rain	85	67	1983	18
25 mm (0.98 in): Days with 25 mm or more rain	85	39	1983	8
50 mm (1.97 in): Days with 50 mm or more rain	85	19	1983	2
100 mm (3.94 in): Days with 100 mm or more rain	39	5	1982	2
200 mm (7.87 in): Days with 200 mm or more rain	2	1	1937	1
10 cm (3.9 in): Days with 10 cm or more snowfall	62	27	1967	4
25 cm (9.8 in): Days with 25 cm or more snowfall	56	11	1967	3
50 cm (19.7 in): Days with 50 cm or more snowfall	8	3	1952	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1930.

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Data for Calaveras Big Trees 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Calaveras Big Trees Threshold Days by Year

Key Facts for Calaveras Big Trees Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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