Mt Airy 2 W Threshold Days by Year (USC00315890)

18 fixed thresholds counted per year at Mt Airy 2 W (USC00315890): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mt Airy 2 W Thresholds

Mt Airy 2 W: days with 10 mm (0.39 in) or more of precipitation in 126 years, most in 2003 with 61.
Mt Airy 2 W: days with 25 mm (0.98 in) or more of precipitation in 126 years, most in 1942 with 26.
Mt Airy 2 W: days with a maximum temperature at or above 30 C (86 F) in 124 years, most in 1911 with 111.
Mt Airy 2 W: days with a maximum temperature at or above 90 F (32.2 C) in 124 years, most in 1954 with 74.
18 fixed thresholds have at least one qualifying day at Mt Airy 2 W.

Days at or above 30 C (86 F)

124 years with a qualifying day

Days per year at Mt Airy 2 W with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 111 in 1911.

Days at or above 30 C (86 F) per year at Mt Airy 2 W
Year	Days	Decade average
1893	59	65
1896	71	65
1900	72	56.3
1901	42	56.3
1902	57	56.3
1903	49	56.3
1906	70	56.3
1907	72	56.3
1908	73	56.3
1909	15	56.3
1910	76	78.4
1911	111	78.4
1912	66	78.4
1914	94	78.4
1915	85	78.4
1916	62	78.4
1917	83	78.4
1918	50	78.4
1919	79	78.4
1920	63	73.3
1921	57	73.3
1924	64	73.3
1925	99	73.3
1926	86	73.3
1927	56	73.3
1928	83	73.3
1929	78	73.3
1930	96	83.3
1931	94	83.3
1932	63	83.3
1933	95	83.3
1934	70	83.3
1935	47	83.3
1936	104	83.3
1937	82	83.3
1938	75	83.3
1939	107	83.3
1940	59	78
1941	91	78
1942	90	78
1943	91	78
1944	94	78
1945	85	78
1946	58	78
1947	80	78
1948	71	78
1949	61	78
1950	68	86.4
1951	83	86.4
1952	99	86.4
1953	109	86.4
1954	110	86.4
1955	79	86.4
1956	86	86.4
1957	79	86.4
1958	74	86.4
1959	77	86.4
1960	75	65.2
1961	59	65.2
1962	69	65.2
1963	77	65.2
1964	66	65.2
1965	68	65.2
1966	62	65.2
1967	50	65.2
1968	62	65.2
1969	64	65.2
1970	87	63.6
1971	48	63.6
1972	53	63.6
1973	60	63.6
1974	53	63.6
1975	64	63.6
1976	59	63.6
1977	90	63.6
1978	80	63.6
1979	42	63.6
1980	90	77.5
1981	89	77.5
1982	65	77.5
1983	85	77.5
1984	64	77.5
1985	69	77.5
1986	92	77.5
1987	81	77.5
1988	85	77.5
1989	55	77.5
1990	65	58.6
1991	66	58.6
1992	38	58.6
1993	67	58.6
1994	50	58.6
1995	51	58.6
1996	50	58.6
1997	54	58.6
1998	83	58.6
1999	62	58.6
2000	51	57.2
2001	51	57.2
2002	77	57.2
2003	39	57.2
2004	38	57.2
2005	58	57.2
2006	61	57.2
2007	91	57.2
2008	57	57.2
2009	49	57.2
2010	93	71.4
2011	89	71.4
2012	63	71.4
2013	52	71.4
2014	56	71.4
2015	72	71.4
2016	76	71.4
2017	55	71.4
2018	71	71.4
2019	87	71.4
2020	57	66.3
2021	66	66.3
2022	73	66.3
2023	51	66.3
2024	65	66.3
2025	59	66.3
2026	93	66.3

For each year, a bar from the first to the last day at Mt Airy 2 W meeting 30 C (86 F).

First to last qualifying date each year at Mt Airy 2 W
Year	First date	Last date
1893	1893-04-09	1893-09-25
1896	1896-04-12	1896-09-19
1900	1900-05-13	1900-10-07
1901	1901-05-01	1901-09-15
1902	1902-05-01	1902-09-08
1903	1903-05-11	1903-09-15
1906	1906-04-27	1906-09-22
1907	1907-03-22	1907-09-24
1908	1908-04-24	1908-09-25
1909	1909-07-02	1909-09-23
1910	1910-03-25	1910-10-17
1911	1911-05-10	1911-09-29
1912	1912-05-24	1912-10-10
1914	1914-04-27	1914-09-23
1915	1915-04-20	1915-10-15
1916	1916-04-13	1916-09-08
1917	1917-04-18	1917-10-16
1918	1918-05-06	1918-10-05
1919	1919-04-09	1919-10-28
1920	1920-05-29	1920-09-29
1921	1921-03-21	1921-10-25
1924	1924-04-25	1924-09-02
1925	1925-04-23	1925-09-21
1926	1926-05-01	1926-10-03
1927	1927-04-29	1927-10-06
1928	1928-05-03	1928-10-13
1929	1929-03-24	1929-09-29
1930	1930-04-11	1930-09-26
1931	1931-05-16	1931-10-08
1932	1932-04-23	1932-09-16
1933	1933-05-13	1933-10-01
1934	1934-04-04	1934-09-27
1935	1935-06-13	1935-10-12
1936	1936-04-15	1936-09-29
1937	1937-04-18	1937-10-06
1938	1938-05-03	1938-10-19
1939	1939-05-11	1939-10-28
1940	1940-05-06	1940-09-23
1941	1941-04-14	1941-10-23
1942	1942-04-04	1942-10-31
1943	1943-05-06	1943-10-02
1944	1944-05-12	1944-10-07
1945	1945-03-17	1945-09-29
1946	1946-04-03	1946-09-11
1947	1947-05-14	1947-09-20
1948	1948-04-24	1948-09-21
1949	1949-05-04	1949-09-18
1950	1950-04-23	1950-11-01
1951	1951-05-02	1951-10-07
1952	1952-04-20	1952-10-02
1953	1953-05-01	1953-10-19
1954	1954-05-02	1954-10-14
1955	1955-04-19	1955-09-27
1956	1956-05-11	1956-09-23
1957	1957-04-21	1957-09-23
1958	1958-04-24	1958-09-27
1959	1959-05-02	1959-10-04
1960	1960-04-23	1960-09-09
1961	1961-06-01	1961-09-26
1962	1962-05-01	1962-09-15
1963	1963-04-03	1963-09-22
1964	1964-05-08	1964-09-11
1965	1965-04-23	1965-09-22
1966	1966-05-29	1966-09-05
1967	1967-04-02	1967-08-27
1968	1968-05-24	1968-09-25
1969	1969-05-04	1969-09-09
1970	1970-04-23	1970-09-27
1971	1971-04-20	1971-09-16
1972	1972-04-16	1972-09-19
1973	1973-06-03	1973-09-29
1974	1974-04-28	1974-09-14
1975	1975-05-20	1975-09-09
1976	1976-04-17	1976-09-10
1977	1977-04-11	1977-09-19
1978	1978-05-20	1978-09-22
1979	1979-06-02	1979-09-07
1980	1980-04-23	1980-09-24
1981	1981-04-27	1981-10-06
1982	1982-05-07	1982-09-18
1983	1983-06-12	1983-10-03
1984	1984-04-26	1984-09-26
1985	1985-03-30	1985-10-12
1986	1986-03-31	1986-10-05
1987	1987-05-17	1987-09-17
1988	1988-05-16	1988-09-25
1989	1989-04-25	1989-09-15
1990	1990-04-24	1990-09-10
1991	1991-05-15	1991-09-18
1992	1992-05-02	1992-09-10
1993	1993-05-29	1993-09-16
1994	1994-04-27	1994-09-16
1995	1995-04-20	1995-09-10
1996	1996-05-05	1996-09-10
1997	1997-05-20	1997-10-06
1998	1998-05-16	1998-09-29
1999	1999-04-23	1999-09-10
2000	2000-05-07	2000-09-25
2001	2001-04-09	2001-09-06
2002	2002-04-17	2002-10-06
2003	2003-05-09	2003-08-31
2004	2004-05-08	2004-09-23
2005	2005-05-13	2005-09-24
2006	2006-04-15	2006-08-31
2007	2007-05-01	2007-10-10
2008	2008-06-01	2008-08-31
2009	2009-04-25	2009-09-25
2010	2010-04-03	2010-10-13
2011	2011-04-25	2011-09-15
2012	2012-05-03	2012-09-08
2013	2013-04-11	2013-10-06
2014	2014-05-09	2014-09-12
2015	2015-05-12	2015-09-20
2016	2016-04-19	2016-10-20
2017	2017-05-11	2017-10-12
2018	2018-05-12	2018-10-08
2019	2019-05-18	2019-10-05
2020	2020-06-03	2020-09-12
2021	2021-05-23	2021-09-20
2022	2022-05-05	2022-09-23
2023	2023-06-03	2023-09-14
2024	2024-04-16	2024-09-23
2025	2025-04-15	2025-09-21
2026	2026-03-12	2026-10-15

Every Fixed Threshold

Fixed thresholds at Mt Airy 2 W
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	124	111	1911	93
35 C (95 F): Days	90	31	1930	8
40 C (104 F): Days	3	2	1952	1
90 F (32.2 C): Days	124	74	1954	46
100 F (37.8 C): Days	23	8	1930	3
0 C (32 F): Ice days (max	104	13	1893	5
0 C (32 F): Frost days (min	120	134	1995	69
-10 C (14 F): Days with min	116	24	1977	8
-20 C (-4 F): Days with min	2	1	1977	1
20 C (68 F): Tropical nights (min	118	38	1987	26
25 C (77 F): Days with min	6	2	1919	1
10 mm (0.39 in): Days with 10 mm or more rain	126	61	2003	27
25 mm (0.98 in): Days with 25 mm or more rain	126	26	1942	8
50 mm (1.97 in): Days with 50 mm or more rain	113	8	1901	2
100 mm (3.94 in): Days with 100 mm or more rain	14	2	1929	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1947	1
10 cm (3.9 in): Days with 10 cm or more snowfall	64	4	1912	1
25 cm (9.8 in): Days with 25 cm or more snowfall	4	1	1915	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1893.

Download the Data

Data for Mt Airy 2 W 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Mt Airy 2 W Threshold Days by Year (USC00315890)

Key Facts for Mt Airy 2 W Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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