Ballantine Threshold Days by Year (USC00240432)

18 fixed thresholds counted per year at Ballantine (USC00240432): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ballantine Thresholds

Ballantine: days with 10 mm (0.39 in) or more of precipitation in 77 years, most in 1978 with 17.
Ballantine: days with a maximum temperature at or above 30 C (86 F) in 74 years, most in 1936 with 96.
Ballantine: days with a maximum temperature at or above 90 F (32.2 C) in 74 years, most in 1936 with 85.
Ballantine: days with a maximum temperature at or below 0 C (32 F) in 74 years, most in 1978 with 72.
18 fixed thresholds have at least one qualifying day at Ballantine.

Days at or above 30 C (86 F)

74 years with a qualifying day

Days per year at Ballantine with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 96 in 1936.

Days at or above 30 C (86 F) per year at Ballantine
Year	Days	Decade average
1920	54	59.3
1921	72	59.3
1922	70	59.3
1923	61	59.3
1924	50	59.3
1925	62	59.3
1926	61	59.3
1927	40	59.3
1929	64	59.3
1930	72	69.9
1931	65	69.9
1932	63	69.9
1933	79	69.9
1934	71	69.9
1935	63	69.9
1936	96	69.9
1937	68	69.9
1938	54	69.9
1939	68	69.9
1940	76	60.1
1941	51	60.1
1942	41	60.1
1943	59	60.1
1944	23	60.1
1945	64	60.1
1946	67	60.1
1947	68	60.1
1948	74	60.1
1949	78	60.1
1950	51	63.2
1951	41	63.2
1952	73	63.2
1953	81	63.2
1954	60	63.2
1955	59	63.2
1956	75	63.2
1957	55	63.2
1958	64	63.2
1959	73	63.2
1962	50	60.6
1963	71	60.6
1965	38	60.6
1966	81	60.6
1967	78	60.6
1968	37	60.6
1969	69	60.6
1970	79	63.8
1971	68	63.8
1972	63	63.8
1973	60	63.8
1974	53	63.8
1975	50	63.8
1976	56	63.8
1977	60	63.8
1978	63	63.8
1979	86	63.8
1980	78	66.9
1981	67	66.9
1982	58	66.9
1983	68	66.9
1984	73	66.9
1985	53	66.9
1986	57	66.9
1987	67	66.9
1988	90	66.9
1989	58	66.9
1990	70	70
2000	61	57
2001	68	57
2002	60	57
2003	70	57
2004	35	57
2005	46	57
2006	59	57

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

First to last qualifying date each year at Ballantine
Year	First date	Last date
1920	1920-05-28	1920-10-04
1921	1921-06-13	1921-10-20
1922	1922-06-04	1922-10-04
1923	1923-05-25	1923-09-21
1924	1924-05-03	1924-09-30
1925	1925-05-19	1925-09-05
1926	1926-04-15	1926-08-31
1927	1927-04-27	1927-09-07
1929	1929-05-22	1929-09-20
1930	1930-04-07	1930-09-17
1931	1931-05-13	1931-09-07
1932	1932-05-12	1932-09-08
1933	1933-05-29	1933-10-08
1934	1934-05-05	1934-09-12
1935	1935-06-08	1935-10-01
1936	1936-04-18	1936-10-08
1937	1937-05-18	1937-09-22
1938	1938-05-27	1938-09-24
1939	1939-04-28	1939-09-21
1940	1940-05-11	1940-09-12
1941	1941-05-12	1941-08-23
1942	1942-07-02	1942-10-09
1943	1943-04-23	1943-10-03
1944	1944-05-14	1944-08-13
1945	1945-05-04	1945-10-02
1946	1946-04-26	1946-10-01
1947	1947-05-02	1947-10-19
1948	1948-04-29	1948-09-22
1949	1949-04-28	1949-09-24
1950	1950-05-17	1950-10-12
1951	1951-05-23	1951-09-10
1952	1952-04-25	1952-09-27
1953	1953-05-07	1953-10-10
1954	1954-05-19	1954-10-07
1955	1955-06-21	1955-10-18
1956	1956-05-17	1956-09-26
1957	1957-05-02	1957-09-28
1958	1958-05-10	1958-10-15
1959	1959-06-02	1959-09-14
1962	1962-04-16	1962-09-27
1963	1963-05-31	1963-10-04
1965	1965-06-12	1965-08-16
1966	1966-05-04	1966-09-24
1967	1967-05-17	1967-09-30
1968	1968-06-02	1968-09-12
1969	1969-05-24	1969-09-19
1970	1970-05-05	1970-10-04
1971	1971-05-13	1971-09-13
1972	1972-05-14	1972-09-18
1973	1973-05-18	1973-10-01
1974	1974-04-26	1974-09-27
1975	1975-05-16	1975-10-04
1976	1976-05-14	1976-09-18
1977	1977-04-26	1977-09-15
1978	1978-03-30	1978-09-25
1979	1979-05-16	1979-10-10
1980	1980-04-19	1980-10-08
1981	1981-05-02	1981-10-03
1982	1982-05-03	1982-09-10
1983	1983-05-26	1983-09-27
1984	1984-05-15	1984-09-19
1985	1985-05-02	1985-09-15
1986	1986-05-04	1986-08-31
1987	1987-04-18	1987-10-04
1988	1988-05-12	1988-09-06
1989	1989-04-21	1989-09-30
1990	1990-06-09	1990-10-01
2000	2000-06-06	2000-09-18
2001	2001-04-28	2001-10-02
2002	2002-05-22	2002-09-17
2003	2003-05-27	2003-10-22
2004	2004-06-04	2004-09-12
2005	2005-06-18	2005-10-02
2006	2006-05-18	2006-09-14

Every Fixed Threshold

Fixed thresholds at Ballantine
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	74	96	1936	59
35 C (95 F): Days	73	60	1936	18
40 C (104 F): Days	30	13	1936	1
90 F (32.2 C): Days	74	85	1936	40
100 F (37.8 C): Days	67	29	1936	4
110 F (43.3 C): Days	2	1	1933	1
0 C (32 F): Ice days (max	74	72	1978	16
0 C (32 F): Frost days (min	74	198	1951	145
-10 C (14 F): Days with min	74	100	1978	45
-20 C (-4 F): Days with min	74	39	1985	18
-30 C (-22 F): Days with min	56	10	1922	2
-40 C (-40 F): Days with min	7	4	1936	2
20 C (68 F): Tropical nights (min	21	4	2003	1
10 mm (0.39 in): Days with 10 mm or more rain	77	17	1978	15
25 mm (0.98 in): Days with 25 mm or more rain	51	5	1923	2
50 mm (1.97 in): Days with 50 mm or more rain	7	1	1922	1
10 cm (3.9 in): Days with 10 cm or more snowfall	18	10	1989	3
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1949	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1920.

Download the Data

Data for Ballantine 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).

Ballantine Threshold Days by Year (USC00240432)

Key Facts for Ballantine Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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