Sixprong Threshold Days by Year (USC00457680)

17 fixed thresholds counted per year at Sixprong (USC00457680): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sixprong Thresholds

Sixprong: days with a maximum temperature at or above 30 C (86 F) in 31 years, most in 1922 with 100.
Sixprong: days with a maximum temperature at or above 35 C (95 F) in 31 years, most in 1925 with 41.
Sixprong: days with a maximum temperature at or above 90 F (32.2 C) in 31 years, most in 1917 with 64.
Sixprong: days with a maximum temperature at or above 100 F (37.8 C) in 31 years, most in 1925 with 17.
17 fixed thresholds have at least one qualifying day at Sixprong.

Days at or above 30 C (86 F)

31 years with a qualifying day

Days per year at Sixprong with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 100 in 1922.

Days at or above 30 C (86 F) per year at Sixprong
Year	Days	Decade average
1907	48	56.7
1908	66	56.7
1909	56	56.7
1910	63	64.5
1911	60	64.5
1912	52	64.5
1913	61	64.5
1914	66	64.5
1915	55	64.5
1916	54	64.5
1917	77	64.5
1918	81	64.5
1919	76	64.5
1920	60	68.5
1921	62	68.5
1922	100	68.5
1923	74	68.5
1924	86	68.5
1925	79	68.5
1926	73	68.5
1927	35	68.5
1928	58	68.5
1929	58	68.5
1931	72	71.2
1936	67	71.2
1937	67	71.2
1938	82	71.2
1939	68	71.2
1940	76	63
1941	54	63
1942	59	63

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

First to last qualifying date each year at Sixprong
Year	First date	Last date
1907	1907-05-15	1907-09-11
1908	1908-05-06	1908-09-30
1909	1909-05-03	1909-09-16
1910	1910-04-18	1910-09-19
1911	1911-04-24	1911-09-02
1912	1912-05-08	1912-09-14
1913	1913-05-23	1913-09-27
1914	1914-05-13	1914-09-24
1915	1915-05-07	1915-09-18
1916	1916-06-02	1916-09-21
1917	1917-06-08	1917-10-05
1918	1918-05-02	1918-09-29
1919	1919-05-18	1919-10-07
1920	1920-05-07	1920-09-17
1921	1921-05-24	1921-09-17
1922	1922-05-13	1922-09-25
1923	1923-05-07	1923-10-03
1924	1924-05-09	1924-09-16
1925	1925-05-05	1925-09-25
1926	1926-04-14	1926-09-05
1927	1927-05-14	1927-08-23
1928	1928-05-18	1928-09-23
1929	1929-05-19	1929-09-17
1931	1931-04-29	1931-09-05
1936	1936-04-16	1936-09-24
1937	1937-05-02	1937-09-16
1938	1938-05-22	1938-09-22
1939	1939-04-28	1939-09-22
1940	1940-05-10	1940-09-26
1941	1941-05-10	1941-08-22
1942	1942-05-21	1942-09-26

Every Fixed Threshold

Fixed thresholds at Sixprong
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	31	100	1922	59
35 C (95 F): Days	31	41	1925	31
40 C (104 F): Days	25	7	1924	2
45 C (113 F): Days	1	2	1928	2
90 F (32.2 C): Days	31	64	1917	41
100 F (37.8 C): Days	31	17	1925	13
110 F (43.3 C): Days	2	3	1928	3
0 C (32 F): Ice days (max	31	44	1916	26
0 C (32 F): Frost days (min	30	119	1911	106
-10 C (14 F): Days with min	29	34	1916	10
-20 C (-4 F): Days with min	10	8	1924	6
20 C (68 F): Tropical nights (min	28	30	1914	8
25 C (77 F): Days with min	11	8	1914	1
10 mm (0.39 in): Days with 10 mm or more rain	24	7	1907	5
25 mm (0.98 in): Days with 25 mm or more rain	5	3	1921	3
10 cm (3.9 in): Days with 10 cm or more snowfall	2	4	1921	4
25 cm (9.8 in): Days with 25 cm or more snowfall	1	3	1921	3

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1907.

Download the Data

Data for Sixprong 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).

Sixprong Threshold Days by Year (USC00457680)

Key Facts for Sixprong Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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