Addison Threshold Days by Year (USC00300023)

17 fixed thresholds counted per year at Addison (USC00300023): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Addison Thresholds

Addison: nights with a minimum temperature at or below 0 C (32 F) in 89 years, most in 1997 with 189.
Addison: nights with a minimum temperature at or below -10 C (14 F) in 89 years, most in 2003 with 65.
Addison: days with 10 mm (0.39 in) or more of precipitation in 87 years, most in 1945 with 48.
Addison: days with 25 mm (0.98 in) or more of precipitation in 87 years, most in 1946 with 13.
17 fixed thresholds have at least one qualifying day at Addison.

Days at or above 30 C (86 F)

86 years with a qualifying day

Days per year at Addison with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 57 in 1908.

Days at or above 30 C (86 F) per year at Addison
Year	Days	Decade average
1893	25	30.3
1894	32	30.3
1895	37	30.3
1896	31	30.3
1897	18	30.3
1898	38	30.3
1899	31	30.3
1900	52	35.6
1901	39	35.6
1902	17	35.6
1903	16	35.6
1904	22	35.6
1905	33	35.6
1906	47	35.6
1907	26	35.6
1908	57	35.6
1909	47	35.6
1910	45	35.9
1911	52	35.9
1912	35	35.9
1913	54	35.9
1914	39	35.9
1915	18	35.9
1916	34	35.9
1917	18	35.9
1918	30	35.9
1919	34	35.9
1920	10	35.9
1921	39	35.9
1922	46	35.9
1923	40	35.9
1924	27	35.9
1925	40	35.9
1926	33	35.9
1927	37	35.9
1929	51	35.9
1931	49	44.7
1932	53	44.7
1933	32	44.7
1940	15	31.2
1941	40	31.2
1942	26	31.2
1943	40	31.2
1944	45	31.2
1945	29	31.2
1946	27	31.2
1947	18	31.2
1948	21	31.2
1949	51	31.2
1950	9	31.4
1951	28	31.4
1952	49	31.4
1953	47	31.4
1954	34	31.4
1955	52	31.4
1956	19	31.4
1957	28	31.4
1958	9	31.4
1959	39	31.4
1960	13	22.6
1961	21	22.6
1962	21	22.6
1963	16	22.6
1964	23	22.6
1965	28	22.6
1966	41	22.6
1967	16	22.6
1968	29	22.6
1969	18	22.6
1970	7	14.5
1979	22	14.5
1997	14	23
1998	18	23
1999	37	23
2000	7	21.9
2001	30	21.9
2002	39	21.9
2003	9	21.9
2004	4	21.9
2005	41	21.9
2007	37	21.9
2008	22	21.9
2009	8	21.9
2010	42	34.7
2011	31	34.7
2012	31	34.7

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

First to last qualifying date each year at Addison
Year	First date	Last date
1893	1893-05-23	1893-08-27
1894	1894-06-10	1894-09-03
1895	1895-05-04	1895-09-23
1896	1896-04-16	1896-09-12
1897	1897-06-24	1897-10-15
1898	1898-06-07	1898-09-04
1899	1899-05-01	1899-09-03
1900	1900-05-12	1900-10-06
1901	1901-06-05	1901-09-07
1902	1902-04-22	1902-08-31
1903	1903-05-17	1903-09-13
1904	1904-05-13	1904-09-18
1905	1905-06-15	1905-10-09
1906	1906-05-16	1906-09-19
1907	1907-05-14	1907-09-20
1908	1908-05-25	1908-10-16
1909	1909-05-06	1909-09-14
1910	1910-06-14	1910-10-06
1911	1911-05-11	1911-09-24
1912	1912-05-21	1912-10-06
1913	1913-04-25	1913-09-07
1914	1914-05-21	1914-09-23
1915	1915-04-25	1915-09-16
1916	1916-07-07	1916-09-14
1917	1917-06-13	1917-08-22
1918	1918-05-06	1918-08-25
1919	1919-05-29	1919-10-04
1920	1920-06-01	1920-08-30
1921	1921-04-25	1921-09-12
1922	1922-05-16	1922-10-06
1923	1923-04-21	1923-09-26
1924	1924-06-17	1924-09-01
1925	1925-04-24	1925-09-28
1926	1926-05-02	1926-10-05
1927	1927-05-22	1927-10-07
1929	1929-04-06	1929-09-28
1931	1931-05-06	1931-10-03
1932	1932-05-15	1932-09-22
1933	1933-05-20	1933-09-08
1940	1940-06-04	1940-08-05
1941	1941-04-20	1941-10-07
1942	1942-04-26	1942-09-17
1943	1943-05-06	1943-09-06
1944	1944-05-04	1944-09-03
1945	1945-04-13	1945-09-26
1946	1946-04-24	1946-10-31
1947	1947-06-11	1947-10-15
1948	1948-05-12	1948-09-19
1949	1949-05-05	1949-10-12
1950	1950-06-08	1950-08-18
1951	1951-06-01	1951-10-06
1952	1952-06-09	1952-09-14
1953	1953-05-10	1953-09-05
1954	1954-04-21	1954-10-12
1955	1955-05-04	1955-09-19
1956	1956-05-14	1956-09-01
1957	1957-04-27	1957-09-03
1958	1958-06-01	1958-08-31
1959	1959-05-06	1959-09-29
1960	1960-04-24	1960-09-09
1961	1961-06-12	1961-09-24
1962	1962-04-26	1962-09-01
1963	1963-06-25	1963-07-29
1964	1964-05-23	1964-09-11
1965	1965-05-03	1965-09-22
1966	1966-05-27	1966-09-02
1967	1967-06-03	1967-08-04
1968	1968-06-06	1968-08-25
1969	1969-05-28	1969-09-01
1970	1970-06-01	1970-09-24
1979	1979-05-10	1979-09-03
1997	1997-06-11	1997-08-17
1998	1998-05-17	1998-09-15
1999	1999-05-31	1999-09-07
2000	2000-05-08	2000-09-02
2001	2001-04-24	2001-09-10
2002	2002-04-17	2002-09-11
2003	2003-06-25	2003-08-30
2004	2004-05-13	2004-08-28
2005	2005-06-06	2005-08-21
2007	2007-05-16	2007-10-06
2008	2008-04-20	2008-09-03
2009	2009-04-26	2009-08-19
2010	2010-05-02	2010-09-25
2011	2011-05-27	2011-09-04
2012	2012-04-17	2012-09-07

Every Fixed Threshold

Fixed thresholds at Addison
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	86	57	1908	31
35 C (95 F): Days	55	17	1911	1
40 C (104 F): Days	1	2	1911	2
90 F (32.2 C): Days	83	39	1911	11
100 F (37.8 C): Days	12	6	1911	3
0 C (32 F): Ice days (max	86	79	1940	12
0 C (32 F): Frost days (min	89	189	1997	152
-10 C (14 F): Days with min	89	65	2003	16
-20 C (-4 F): Days with min	78	23	1948	10
-30 C (-22 F): Days with min	16	3	1944	3
20 C (68 F): Tropical nights (min	64	11	1901	1
10 mm (0.39 in): Days with 10 mm or more rain	87	48	1945	27
25 mm (0.98 in): Days with 25 mm or more rain	87	13	1946	8
50 mm (1.97 in): Days with 50 mm or more rain	51	3	1955	1
10 cm (3.9 in): Days with 10 cm or more snowfall	38	10	1958	3
25 cm (9.8 in): Days with 25 cm or more snowfall	13	2	1950	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1961	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 Addison 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).

Addison Threshold Days by Year (USC00300023)

Key Facts for Addison Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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