Magnolia Threshold Days by Year

17 fixed thresholds counted per year at Magnolia (USC00225397): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Magnolia Thresholds

Magnolia: nights with a minimum temperature at or below 0 C (32 F) in 52 years, most in 1903 with 57.
Magnolia: nights with a minimum temperature at or above 20 C (68 F) in 52 years, most in 1900 with 133.
Magnolia: days with a maximum temperature at or above 30 C (86 F) in 50 years, most in 1935 with 171.
Magnolia: days with a maximum temperature at or above 90 F (32.2 C) in 50 years, most in 1937 with 128.
17 fixed thresholds have at least one qualifying day at Magnolia.

Days at or above 30 C (86 F)

50 years with a qualifying day

Days per year at Magnolia with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 171 in 1935.

Days at or above 30 C (86 F) per year at Magnolia
Year	Days	Decade average
1896	161	144.5
1897	153	144.5
1898	113	144.5
1899	151	144.5
1900	139	136
1901	128	136
1902	137	136
1903	123	136
1904	159	136
1906	132	136
1907	137	136
1908	138	136
1909	131	136
1910	149	129.3
1911	139	129.3
1912	117	129.3
1913	114	129.3
1914	131	129.3
1915	151	129.3
1916	137	129.3
1917	112	129.3
1918	127	129.3
1919	116	129.3
1920	121	133.1
1921	134	133.1
1922	125	133.1
1923	106	133.1
1924	133	133.1
1925	141	133.1
1926	145	133.1
1927	148	133.1
1928	134	133.1
1929	144	133.1
1930	133	146.5
1931	132	146.5
1932	128	146.5
1933	155	146.5
1934	139	146.5
1935	171	146.5
1936	158	146.5
1937	148	146.5
1938	153	146.5
1939	148	146.5
1940	119	136
1941	151	136
1942	124	136
1943	144	136
1944	145	136
1946	117	136
1948	152	136

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

First to last qualifying date each year at Magnolia
Year	First date	Last date
1896	1896-04-18	1896-11-11
1897	1897-03-20	1897-11-06
1898	1898-05-14	1898-10-10
1899	1899-03-27	1899-10-21
1900	1900-04-09	1900-10-29
1901	1901-04-26	1901-10-27
1902	1902-04-26	1902-10-03
1903	1903-04-09	1903-11-16
1904	1904-03-22	1904-12-23
1906	1906-04-27	1906-09-29
1907	1907-03-19	1907-10-27
1908	1908-03-15	1908-09-23
1909	1909-04-29	1909-10-20
1910	1910-03-23	1910-10-20
1911	1911-02-15	1911-09-30
1912	1912-05-08	1912-10-12
1913	1913-03-23	1913-11-17
1914	1914-05-05	1914-11-08
1915	1915-04-17	1915-11-21
1916	1916-05-06	1916-10-15
1917	1917-04-17	1917-10-18
1918	1918-03-09	1918-10-08
1919	1919-05-16	1919-10-31
1920	1920-03-27	1920-11-10
1921	1921-03-22	1921-10-27
1922	1922-04-14	1922-11-03
1923	1923-04-24	1923-10-04
1924	1924-05-19	1924-10-21
1925	1925-04-14	1925-10-16
1926	1926-04-23	1926-10-19
1927	1927-04-03	1927-10-26
1928	1928-03-13	1928-10-13
1929	1929-03-23	1929-10-20
1930	1930-04-07	1930-10-15
1931	1931-04-17	1931-10-27
1932	1932-02-29	1932-10-18
1933	1933-03-14	1933-10-21
1934	1934-04-02	1934-10-30
1935	1935-03-21	1935-11-03
1936	1936-03-15	1936-11-03
1937	1937-04-16	1937-10-09
1938	1938-03-21	1938-10-16
1939	1939-03-23	1939-10-27
1940	1940-04-02	1940-10-27
1941	1941-04-11	1941-10-24
1942	1942-04-29	1942-10-18
1943	1943-04-06	1943-10-11
1944	1944-03-07	1944-10-30
1946	1946-03-30	1946-10-19
1948	1948-03-20	1948-11-04

Every Fixed Threshold

Fixed thresholds at Magnolia
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	50	171	1935	152
35 C (95 F): Days	49	72	1948	72
40 C (104 F): Days	12	8	1930	1
90 F (32.2 C): Days	50	128	1937	115
100 F (37.8 C): Days	36	30	1930	13
0 C (32 F): Ice days (max	12	5	1940	1
0 C (32 F): Frost days (min	52	57	1903	43
-10 C (14 F): Days with min	15	4	1940	2
20 C (68 F): Tropical nights (min	52	133	1900	98
25 C (77 F): Days with min	24	9	1942	8
10 mm (0.39 in): Days with 10 mm or more rain	41	62	1898	49
25 mm (0.98 in): Days with 25 mm or more rain	41	30	1923	29
50 mm (1.97 in): Days with 50 mm or more rain	41	11	1900	5
100 mm (3.94 in): Days with 100 mm or more rain	16	2	1900	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1900	1
10 cm (3.9 in): Days with 10 cm or more snowfall	1	1	1948	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1948	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1896.

Download the Data

Data for Magnolia 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).

Magnolia Threshold Days by Year

Key Facts for Magnolia Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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