Anderson Threshold Days by Year (USC00230165)

20 fixed thresholds counted per year at Anderson (USC00230165): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Anderson Thresholds

Anderson: days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 1927 with 53.
Anderson: days with 25 mm (0.98 in) or more of precipitation in 42 years, most in 1927 with 23.
Anderson: days with 50 mm (1.97 in) or more of precipitation in 41 years, most in 1908 with 7.
Anderson: days with a maximum temperature at or above 30 C (86 F) in 37 years, most in 1936 with 125.
20 fixed thresholds have at least one qualifying day at Anderson.

Days at or above 30 C (86 F)

37 years with a qualifying day

Days per year at Anderson 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 Anderson
Year	Days	Decade average
1899	114	114
1900	109	89.7
1901	121	89.7
1902	95	89.7
1903	72	89.7
1904	71	89.7
1905	83	89.7
1906	74	89.7
1907	93	89.7
1908	86	89.7
1909	93	89.7
1910	85	87.1
1911	110	87.1
1912	91	87.1
1913	95	87.1
1915	63	87.1
1916	99	87.1
1917	67	87.1
1919	87	87.1
1921	111	95.1
1922	105	95.1
1925	96	95.1
1926	75	95.1
1927	93	95.1
1928	92	95.1
1929	94	95.1
1930	98	104.8
1931	76	104.8
1932	106	104.8
1934	107	104.8
1935	88	104.8
1936	125	104.8
1937	106	104.8
1938	119	104.8
1939	118	104.8
1940	68	80
1941	92	80

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

First to last qualifying date each year at Anderson
Year	First date	Last date
1899	1899-04-28	1899-10-22
1900	1900-03-11	1900-10-24
1901	1901-04-25	1901-10-01
1902	1902-04-20	1902-10-16
1903	1903-04-09	1903-10-20
1904	1904-03-21	1904-10-10
1905	1905-04-08	1905-09-27
1906	1906-04-10	1906-10-07
1907	1907-03-18	1907-10-02
1908	1908-03-17	1908-10-18
1909	1909-04-17	1909-11-04
1910	1910-03-22	1910-10-16
1911	1911-02-01	1911-10-11
1912	1912-05-01	1912-10-09
1913	1913-04-17	1913-10-09
1915	1915-04-28	1915-09-28
1916	1916-03-21	1916-10-08
1917	1917-05-18	1917-10-16
1919	1919-04-22	1919-09-19
1921	1921-03-18	1921-10-17
1922	1922-04-06	1922-10-30
1925	1925-04-15	1925-10-06
1926	1926-05-23	1926-10-02
1927	1927-04-03	1927-10-29
1928	1928-05-01	1928-10-15
1929	1929-03-23	1929-09-29
1930	1930-04-09	1930-10-10
1931	1931-05-16	1931-10-07
1932	1932-04-04	1932-09-21
1934	1934-05-07	1934-09-25
1935	1935-05-08	1935-09-24
1936	1936-04-13	1936-09-21
1937	1937-04-17	1937-10-30
1938	1938-04-30	1938-10-17
1939	1939-04-26	1939-10-25
1940	1940-04-01	1940-10-13
1941	1941-05-14	1941-10-21

Every Fixed Threshold

Fixed thresholds at Anderson
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	37	125	1936	92
35 C (95 F): Days	35	89	1936	20
40 C (104 F): Days	14	50	1936	5
45 C (113 F): Days	2	6	1936	6
90 F (32.2 C): Days	37	101	1936	55
100 F (37.8 C): Days	25	61	1936	2
110 F (43.3 C): Days	5	16	1934	15
0 C (32 F): Ice days (max	35	21	1940	1
0 C (32 F): Frost days (min	33	127	1912	101
-10 C (14 F): Days with min	33	31	1917	9
-20 C (-4 F): Days with min	20	8	1917	5
-30 C (-22 F): Days with min	4	1	1899	1
20 C (68 F): Tropical nights (min	33	41	1936	20
25 C (77 F): Days with min	8	3	1909	2
10 mm (0.39 in): Days with 10 mm or more rain	42	53	1927	39
25 mm (0.98 in): Days with 25 mm or more rain	42	23	1927	13
50 mm (1.97 in): Days with 50 mm or more rain	41	7	1908	3
100 mm (3.94 in): Days with 100 mm or more rain	6	2	1941	1
10 cm (3.9 in): Days with 10 cm or more snowfall	11	4	1930	1
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1911	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1899.

Download the Data

Data for Anderson 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).

Anderson Threshold Days by Year (USC00230165)

Key Facts for Anderson Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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