Border 3 N Threshold Days by Year (USC00480915)

16 fixed thresholds counted per year at Border 3 N (USC00480915): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Border 3 N Thresholds

Border 3 N: days with a maximum temperature at or above 30 C (86 F) in 88 years, most in 1919 with 59.
Border 3 N: days with a maximum temperature at or below 0 C (32 F) in 88 years, most in 1985 with 106.
Border 3 N: nights with a minimum temperature at or below 0 C (32 F) in 88 years, most in 1955 with 280.
Border 3 N: nights with a minimum temperature at or below -10 C (14 F) in 88 years, most in 1952 with 148.
16 fixed thresholds have at least one qualifying day at Border 3 N.

Days at or above 30 C (86 F)

88 years with a qualifying day

Days per year at Border 3 N with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 59 in 1919.

Days at or above 30 C (86 F) per year at Border 3 N
Year	Days	Decade average
1902	24	18.4
1903	18	18.4
1904	14	18.4
1905	20	18.4
1906	15	18.4
1907	13	18.4
1908	20	18.4
1909	23	18.4
1910	39	28.7
1911	27	28.7
1912	9	28.7
1913	19	28.7
1914	25	28.7
1915	30	28.7
1916	29	28.7
1917	26	28.7
1918	24	28.7
1919	59	28.7
1920	29	24.2
1921	32	24.2
1922	28	24.2
1923	17	24.2
1924	31	24.2
1925	20	24.2
1926	17	24.2
1927	18	24.2
1928	11	24.2
1929	39	24.2
1930	25	25.1
1931	47	25.1
1932	19	25.1
1933	36	25.1
1936	24	25.1
1937	19	25.1
1938	7	25.1
1939	24	25.1
1940	57	24.7
1941	15	24.7
1942	36	24.7
1943	15	24.7
1944	20	24.7
1945	14	24.7
1946	23	24.7
1947	22	24.7
1948	26	24.7
1949	19	24.7
1950	9	20.4
1951	11	20.4
1952	17	20.4
1953	18	20.4
1954	36	20.4
1955	32	20.4
1956	22	20.4
1957	20	20.4
1958	18	20.4
1959	21	20.4
1960	28	21.6
1961	28	21.6
1962	9	21.6
1963	12	21.6
1964	21	21.6
1965	7	21.6
1966	32	21.6
1967	22	21.6
1968	19	21.6
1969	38	21.6
1970	35	25.2
1971	33	25.2
1972	13	25.2
1973	26	25.2
1974	34	25.2
1975	21	25.2
1976	21	25.2
1977	19	25.2
1978	21	25.2
1979	29	25.2
1980	9	15.7
1981	32	15.7
1982	16	15.7
1983	15	15.7
1984	12	15.7
1985	23	15.7
1986	9	15.7
1987	2	15.7
1989	23	15.7
1990	28	20.7
1991	18	20.7
1992	16	20.7

For each year, a bar from the first to the last day at Border 3 N meeting 30 C (86 F).

First to last qualifying date each year at Border 3 N
Year	First date	Last date
1902	1902-06-09	1902-09-03
1903	1903-07-12	1903-09-04
1904	1904-07-11	1904-09-08
1905	1905-07-10	1905-09-22
1906	1906-07-20	1906-08-18
1907	1907-07-19	1907-08-23
1908	1908-07-12	1908-09-06
1909	1909-06-30	1909-08-25
1910	1910-05-31	1910-09-09
1911	1911-06-11	1911-08-31
1912	1912-06-26	1912-08-27
1913	1913-06-22	1913-09-07
1914	1914-07-06	1914-09-04
1915	1915-06-16	1915-09-02
1916	1916-06-17	1916-08-23
1917	1917-06-27	1917-09-03
1918	1918-06-09	1918-08-29
1919	1919-05-28	1919-09-14
1920	1920-07-02	1920-08-24
1921	1921-06-12	1921-08-30
1922	1922-06-18	1922-09-22
1923	1923-07-01	1923-08-16
1924	1924-06-14	1924-09-05
1925	1925-06-26	1925-08-22
1926	1926-06-25	1926-08-26
1927	1927-06-23	1927-09-20
1928	1928-07-24	1928-09-06
1929	1929-06-25	1929-08-28
1930	1930-06-15	1930-08-21
1931	1931-06-14	1931-09-08
1932	1932-06-22	1932-08-23
1933	1933-07-11	1933-09-06
1936	1936-06-19	1936-08-15
1937	1937-06-21	1937-09-19
1938	1938-07-31	1938-08-23
1939	1939-05-29	1939-08-26
1940	1940-06-12	1940-09-03
1941	1941-06-22	1941-08-30
1942	1942-05-22	1942-09-28
1943	1943-07-06	1943-09-11
1944	1944-06-30	1944-09-10
1945	1945-07-21	1945-09-02
1946	1946-07-15	1946-08-21
1947	1947-07-05	1947-09-06
1948	1948-07-09	1948-09-12
1949	1949-07-08	1949-08-21
1950	1950-07-01	1950-09-06
1951	1951-07-13	1951-08-01
1952	1952-07-04	1952-09-03
1953	1953-07-08	1953-08-22
1954	1954-06-22	1954-09-01
1955	1955-06-22	1955-09-07
1956	1956-06-28	1956-09-19
1957	1957-07-09	1957-08-18
1958	1958-06-27	1958-09-06
1959	1959-06-12	1959-09-11
1960	1960-07-13	1960-08-30
1961	1961-06-18	1961-08-28
1962	1962-06-25	1962-08-16
1963	1963-07-01	1963-08-15
1964	1964-07-02	1964-08-18
1965	1965-07-15	1965-08-11
1966	1966-06-27	1966-08-25
1967	1967-07-13	1967-09-05
1968	1968-07-14	1968-08-12
1969	1969-07-12	1969-09-01
1970	1970-06-22	1970-08-31
1971	1971-06-21	1971-09-13
1972	1972-07-24	1972-08-13
1973	1973-06-09	1973-08-20
1974	1974-06-14	1974-08-28
1975	1975-07-02	1975-08-10
1976	1976-06-30	1976-09-05
1977	1977-06-05	1977-09-07
1978	1978-07-14	1978-09-05
1979	1979-06-25	1979-09-08
1980	1980-06-11	1980-09-06
1981	1981-06-25	1981-09-19
1982	1982-07-12	1982-08-23
1983	1983-07-05	1983-08-11
1984	1984-06-28	1984-08-10
1985	1985-07-02	1985-08-30
1986	1986-08-03	1986-08-27
1987	1987-06-27	1987-07-15
1989	1989-06-15	1989-08-01
1990	1990-06-22	1990-09-14
1991	1991-07-04	1991-09-02
1992	1992-06-23	1992-08-21

Every Fixed Threshold

Fixed thresholds at Border 3 N
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	88	59	1919	16
35 C (95 F): Days	16	7	1931	1
90 F (32.2 C): Days	79	31	1919	4
100 F (37.8 C): Days	2	2	1931	2
0 C (32 F): Ice days (max	88	106	1985	72
0 C (32 F): Frost days (min	88	280	1955	246
-10 C (14 F): Days with min	88	148	1952	98
-20 C (-4 F): Days with min	88	73	1985	58
-30 C (-22 F): Days with min	82	21	1903	6
-40 C (-40 F): Days with min	20	3	1903	3
20 C (68 F): Tropical nights (min	4	4	1908	1
10 mm (0.39 in): Days with 10 mm or more rain	88	14	1912	4
25 mm (0.98 in): Days with 25 mm or more rain	34	4	1909	1
50 mm (1.97 in): Days with 50 mm or more rain	1	1	1923	1
10 cm (3.9 in): Days with 10 cm or more snowfall	69	21	1936	1
25 cm (9.8 in): Days with 25 cm or more snowfall	8	1	1914	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1902.

Download the Data

Data for Border 3 N 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).

Border 3 N Threshold Days by Year (USC00480915)

Key Facts for Border 3 N Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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