Tonoloway Threshold Days by Year (USC00188855)

17 fixed thresholds counted per year at Tonoloway (USC00188855): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tonoloway Thresholds

Tonoloway: days with a maximum temperature at or above 30 C (86 F) in 31 years, most in 1930 with 91.
Tonoloway: days with a maximum temperature at or above 90 F (32.2 C) in 31 years, most in 1930 with 55.
Tonoloway: days with a maximum temperature at or below 0 C (32 F) in 31 years, most in 1940 with 27.
Tonoloway: days with a maximum temperature at or above 35 C (95 F) in 30 years, most in 1930 with 25.
17 fixed thresholds have at least one qualifying day at Tonoloway.

Days at or above 30 C (86 F)

31 years with a qualifying day

Days per year at Tonoloway with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 91 in 1930.

Days at or above 30 C (86 F) per year at Tonoloway
Year	Days	Decade average
1925	74	60
1926	57	60
1927	42	60
1928	56	60
1929	71	60
1930	91	76.3
1931	74	76.3
1932	80	76.3
1933	73	76.3
1934	79	76.3
1935	65	76.3
1936	78	76.3
1937	67	76.3
1938	73	76.3
1939	83	76.3
1940	46	57.9
1941	76	57.9
1942	56	57.9
1943	76	57.9
1944	70	57.9
1945	51	57.9
1946	41	57.9
1947	46	57.9
1948	50	57.9
1949	67	57.9
1950	33	59.8
1951	68	59.8
1952	69	59.8
1953	81	59.8
1955	60	59.8
1956	48	59.8

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

First to last qualifying date each year at Tonoloway
Year	First date	Last date
1925	1925-04-23	1925-09-27
1926	1926-05-01	1926-10-05
1927	1927-05-10	1927-10-02
1928	1928-05-04	1928-10-17
1929	1929-04-06	1929-09-29
1930	1930-04-11	1930-10-15
1931	1931-05-28	1931-10-07
1932	1932-05-06	1932-10-03
1933	1933-05-20	1933-10-01
1934	1934-05-05	1934-09-25
1935	1935-03-16	1935-11-05
1936	1936-04-30	1936-09-27
1937	1937-04-18	1937-09-24
1938	1938-04-20	1938-10-19
1939	1939-04-24	1939-10-10
1940	1940-05-06	1940-09-21
1941	1941-04-14	1941-10-07
1942	1942-04-25	1942-09-19
1943	1943-05-08	1943-09-23
1944	1944-05-04	1944-09-04
1945	1945-03-16	1945-09-29
1946	1946-04-23	1946-09-10
1947	1947-05-19	1947-10-23
1948	1948-03-21	1948-09-14
1949	1949-03-27	1949-10-12
1950	1950-05-05	1950-08-31
1951	1951-05-02	1951-10-05
1952	1952-04-22	1952-09-13
1953	1953-05-10	1953-10-01
1955	1955-05-04	1955-09-21
1956	1956-04-28	1956-09-23

Every Fixed Threshold

Fixed thresholds at Tonoloway
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	31	91	1930	48
35 C (95 F): Days	30	25	1930	1
40 C (104 F): Days	4	3	1930	2
90 F (32.2 C): Days	31	55	1930	18
100 F (37.8 C): Days	13	12	1930	10
0 C (32 F): Ice days (max	31	27	1940	6
0 C (32 F): Frost days (min	30	154	1943	137
-10 C (14 F): Days with min	30	35	1936	11
-20 C (-4 F): Days with min	8	6	1936	1
20 C (68 F): Tropical nights (min	30	21	1955	5
25 C (77 F): Days with min	1	1	1931	1
10 mm (0.39 in): Days with 10 mm or more rain	29	40	1940	40
25 mm (0.98 in): Days with 25 mm or more rain	29	13	1936	10
50 mm (1.97 in): Days with 50 mm or more rain	17	3	1929	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1936	1
10 cm (3.9 in): Days with 10 cm or more snowfall	8	4	1944	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1946	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1925.

Download the Data

Data for Tonoloway 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).

Tonoloway Threshold Days by Year (USC00188855)

Key Facts for Tonoloway Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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