Andrews Threshold Days by Year (USC00310184)

16 fixed thresholds counted per year at Andrews (USC00310184): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Andrews Thresholds

Andrews: days with a maximum temperature at or above 30 C (86 F) in 76 years, most in 1936 with 125.
Andrews: days with 10 mm (0.39 in) or more of precipitation in 76 years, most in 1989 with 75.
Andrews: days with 25 mm (0.98 in) or more of precipitation in 76 years, most in 1994 with 34.
Andrews: days with a maximum temperature at or above 90 F (32.2 C) in 73 years, most in 1936 with 81.
16 fixed thresholds have at least one qualifying day at Andrews.

Days at or above 30 C (86 F)

76 years with a qualifying day

Days per year at Andrews with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 125 in 1936.

Days at or above 30 C (86 F) per year at Andrews
Year	Days	Decade average
1910	59	73.7
1911	117	73.7
1912	50	73.7
1913	83	73.7
1914	83	73.7
1915	50	73.7
1921	84	66.3
1923	49	66.3
1926	77	66.3
1927	55	66.3
1930	63	77
1931	68	77
1932	48	77
1936	125	77
1938	74	77
1939	84	77
1940	52	63.7
1941	81	63.7
1942	44	63.7
1943	56	63.7
1944	62	63.7
1945	84	63.7
1946	75	63.7
1947	65	63.7
1948	70	63.7
1949	48	63.7
1950	23	62.9
1951	66	62.9
1952	56	62.9
1953	74	62.9
1954	94	62.9
1955	70	62.9
1956	67	62.9
1957	63	62.9
1958	53	62.9
1959	63	62.9
1960	62	40.8
1961	35	40.8
1962	65	40.8
1963	25	40.8
1964	37	40.8
1965	28	40.8
1966	38	40.8
1967	17	40.8
1968	46	40.8
1969	55	40.8
1970	70	48.7
1971	38	48.7
1972	30	48.7
1973	39	48.7
1974	27	48.7
1975	51	48.7
1976	46	48.7
1977	75	48.7
1978	77	48.7
1979	34	48.7
1980	88	48.1
1981	69	48.1
1982	35	48.1
1984	30	48.1
1985	39	48.1
1986	56	48.1
1987	44	48.1
1988	52	48.1
1989	20	48.1
1990	50	52.7
1991	63	52.7
1992	38	52.7
1993	64	52.7
1994	27	52.7
1995	43	52.7
1996	45	52.7
1997	48	52.7
1998	88	52.7
1999	61	52.7
2002	68	68

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

First to last qualifying date each year at Andrews
Year	First date	Last date
1910	1910-03-24	1910-10-22
1911	1911-05-10	1911-10-07
1912	1912-05-23	1912-10-11
1913	1913-05-02	1913-09-09
1914	1914-04-28	1914-09-23
1915	1915-04-24	1915-10-17
1921	1921-05-19	1921-09-29
1923	1923-06-03	1923-09-28
1926	1926-05-24	1926-10-04
1927	1927-04-20	1927-11-01
1930	1930-06-04	1930-09-22
1931	1931-05-19	1931-09-25
1932	1932-06-05	1932-09-18
1936	1936-04-29	1936-09-30
1938	1938-04-27	1938-10-19
1939	1939-05-07	1939-10-10
1940	1940-04-02	1940-09-23
1941	1941-05-16	1941-10-09
1942	1942-04-27	1942-09-19
1943	1943-05-18	1943-09-02
1944	1944-05-16	1944-09-21
1945	1945-05-14	1945-09-30
1946	1946-04-03	1946-09-26
1947	1947-05-24	1947-09-22
1948	1948-04-25	1948-09-21
1949	1949-05-04	1949-09-18
1950	1950-05-05	1950-09-05
1951	1951-05-18	1951-10-07
1952	1952-06-06	1952-09-02
1953	1953-05-23	1953-10-02
1954	1954-05-31	1954-10-07
1955	1955-04-18	1955-09-25
1956	1956-05-14	1956-09-18
1957	1957-05-14	1957-09-23
1958	1958-05-18	1958-09-27
1959	1959-05-04	1959-10-06
1960	1960-04-24	1960-09-20
1961	1961-07-02	1961-09-26
1962	1962-05-01	1962-09-15
1963	1963-05-10	1963-09-22
1964	1964-05-27	1964-09-10
1965	1965-04-25	1965-09-11
1966	1966-06-23	1966-09-05
1967	1967-05-28	1967-08-27
1968	1968-05-25	1968-08-26
1969	1969-05-06	1969-09-08
1970	1970-04-30	1970-09-26
1971	1971-06-04	1971-09-16
1972	1972-06-06	1972-09-16
1973	1973-06-12	1973-09-25
1974	1974-05-19	1974-09-14
1975	1975-05-21	1975-09-11
1976	1976-04-20	1976-09-09
1977	1977-04-18	1977-09-10
1978	1978-04-10	1978-09-23
1979	1979-05-12	1979-10-02
1980	1980-05-13	1980-09-24
1981	1981-04-14	1981-09-23
1982	1982-05-12	1982-08-15
1984	1984-04-27	1984-09-15
1985	1985-04-22	1985-09-12
1986	1986-04-27	1986-10-03
1987	1987-06-04	1987-09-04
1988	1988-05-31	1988-08-28
1989	1989-06-02	1989-08-29
1990	1990-06-08	1990-09-12
1991	1991-05-16	1991-09-19
1992	1992-06-17	1992-09-18
1993	1993-06-07	1993-09-02
1994	1994-06-03	1994-09-17
1995	1995-04-11	1995-09-02
1996	1996-05-19	1996-09-09
1997	1997-06-21	1997-09-21
1998	1998-05-14	1998-09-28
1999	1999-06-08	1999-09-14
2002	2002-04-19	2002-09-13

Every Fixed Threshold

Fixed thresholds at Andrews
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	76	125	1936	68
35 C (95 F): Days	31	30	1936	2
90 F (32.2 C): Days	73	81	1936	24
100 F (37.8 C): Days	1	2	1936	2
0 C (32 F): Ice days (max	67	15	1977	1
0 C (32 F): Frost days (min	73	142	1966	105
-10 C (14 F): Days with min	72	41	1963	5
-20 C (-4 F): Days with min	7	4	1940	1
20 C (68 F): Tropical nights (min	40	9	1926	3
10 mm (0.39 in): Days with 10 mm or more rain	76	75	1989	40
25 mm (0.98 in): Days with 25 mm or more rain	76	34	1994	20
50 mm (1.97 in): Days with 50 mm or more rain	69	10	1994	7
100 mm (3.94 in): Days with 100 mm or more rain	15	3	1990	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1982	1
10 cm (3.9 in): Days with 10 cm or more snowfall	30	3	1936	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1932	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 Andrews 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).

Andrews Threshold Days by Year (USC00310184)

Key Facts for Andrews Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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