Onley 1 S Threshold Days by Year (USC00446362)

16 fixed thresholds counted per year at Onley 1 S (USC00446362): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Onley 1 S Thresholds

Onley 1 S: days with a maximum temperature at or above 30 C (86 F) in 33 years, most in 1941 with 87.
Onley 1 S: days with a maximum temperature at or above 90 F (32.2 C) in 33 years, most in 1925 with 51.
Onley 1 S: nights with a minimum temperature at or below 0 C (32 F) in 33 years, most in 1923 with 87.
Onley 1 S: nights with a minimum temperature at or above 20 C (68 F) in 33 years, most in 1949 with 72.
16 fixed thresholds have at least one qualifying day at Onley 1 S.

Days at or above 30 C (86 F)

33 years with a qualifying day

Days per year at Onley 1 S with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 87 in 1941.

Days at or above 30 C (86 F) per year at Onley 1 S
Year	Days	Decade average
1921	71	57
1922	64	57
1923	53	57
1924	41	57
1925	86	57
1926	69	57
1927	37	57
1928	35	57
1930	74	57.3
1931	73	57.3
1932	65	57.3
1933	65	57.3
1934	57	57.3
1935	42	57.3
1936	56	57.3
1937	48	57.3
1938	37	57.3
1939	56	57.3
1940	47	61.4
1941	87	61.4
1942	82	61.4
1943	82	61.4
1944	73	61.4
1945	59	61.4
1946	27	61.4
1947	51	61.4
1948	49	61.4
1949	57	61.4
1950	40	56.8
1951	52	56.8
1952	72	56.8
1953	58	56.8
1954	62	56.8

For each year, a bar from the first to the last day at Onley 1 S meeting 30 C (86 F).

First to last qualifying date each year at Onley 1 S
Year	First date	Last date
1921	1921-03-27	1921-09-30
1922	1922-04-11	1922-10-08
1923	1923-06-02	1923-09-21
1924	1924-06-08	1924-09-13
1925	1925-04-25	1925-10-17
1926	1926-04-22	1926-10-05
1927	1927-05-11	1927-10-01
1928	1928-05-04	1928-09-17
1930	1930-04-11	1930-09-26
1931	1931-05-16	1931-10-07
1932	1932-05-07	1932-09-06
1933	1933-05-13	1933-09-28
1934	1934-05-06	1934-09-27
1935	1935-06-14	1935-08-17
1936	1936-05-08	1936-09-13
1937	1937-04-18	1937-09-05
1938	1938-06-07	1938-09-15
1939	1939-05-11	1939-10-10
1940	1940-05-07	1940-09-25
1941	1941-04-14	1941-10-08
1942	1942-04-06	1942-09-20
1943	1943-04-28	1943-09-17
1944	1944-05-13	1944-10-07
1945	1945-03-17	1945-09-26
1946	1946-04-20	1946-09-10
1947	1947-05-13	1947-09-19
1948	1948-03-21	1948-09-20
1949	1949-05-19	1949-09-19
1950	1950-05-06	1950-11-01
1951	1951-04-26	1951-09-22
1952	1952-04-23	1952-09-14
1953	1953-05-15	1953-09-06
1954	1954-04-27	1954-10-13

Every Fixed Threshold

Fixed thresholds at Onley 1 S
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	33	87	1941	62
35 C (95 F): Days	30	15	1925	9
90 F (32.2 C): Days	33	51	1925	28
100 F (37.8 C): Days	9	4	1930	4
0 C (32 F): Ice days (max	27	17	1936	4
0 C (32 F): Frost days (min	33	87	1923	61
-10 C (14 F): Days with min	25	15	1936	2
20 C (68 F): Tropical nights (min	33	72	1949	65
25 C (77 F): Days with min	22	6	1926	4
10 mm (0.39 in): Days with 10 mm or more rain	33	54	1946	34
25 mm (0.98 in): Days with 25 mm or more rain	33	18	1945	14
50 mm (1.97 in): Days with 50 mm or more rain	25	7	1938	2
100 mm (3.94 in): Days with 100 mm or more rain	8	2	1938	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1953	1
10 cm (3.9 in): Days with 10 cm or more snowfall	16	4	1930	1
25 cm (9.8 in): Days with 25 cm or more snowfall	3	1	1934	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1921.

Download the Data

Data for Onley 1 S 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).

Onley 1 S Threshold Days by Year (USC00446362)

Key Facts for Onley 1 S Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related