Tappen Threshold Days by Year (CA001167980)

15 fixed thresholds counted per year at Tappen (CA001167980): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tappen Thresholds

Tappen: days with a maximum temperature at or below 0 C (32 F) in 45 years, most in 1951 with 71.
Tappen: days with a maximum temperature at or above 30 C (86 F) in 44 years, most in 1914 with 64.
Tappen: nights with a minimum temperature at or below 0 C (32 F) in 44 years, most in 1924 with 195.
Tappen: nights with a minimum temperature at or below -10 C (14 F) in 44 years, most in 1916 with 56.
15 fixed thresholds have at least one qualifying day at Tappen.

Days at or above 30 C (86 F)

44 years with a qualifying day

Days per year at Tappen with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 64 in 1914.

Days at or above 30 C (86 F) per year at Tappen
Year	Days	Decade average
1913	35	43
1914	64	43
1915	49	43
1916	26	43
1917	43	43
1918	35	43
1919	49	43
1921	25	37.1
1922	31	37.1
1923	23	37.1
1924	55	37.1
1925	55	37.1
1926	37	37.1
1927	33	37.1
1928	40	37.1
1929	35	37.1
1930	32	29.9
1931	42	29.9
1932	28	29.9
1933	29	29.9
1934	21	29.9
1935	10	29.9
1936	33	29.9
1937	29	29.9
1938	47	29.9
1939	28	29.9
1940	40	33.5
1941	32	33.5
1942	34	33.5
1943	28	33.5
1944	43	33.5
1945	40	33.5
1946	30	33.5
1947	21	33.5
1951	19	18.4
1952	21	18.4
1953	8	18.4
1955	17	18.4
1956	22	18.4
1957	2	18.4
1958	47	18.4
1959	11	18.4
1960	25	31
1961	37	31

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

First to last qualifying date each year at Tappen
Year	First date	Last date
1913	1913-05-23	1913-08-30
1914	1914-05-13	1914-09-03
1915	1915-06-22	1915-09-04
1916	1916-06-14	1916-09-01
1917	1917-05-31	1917-08-29
1918	1918-06-11	1918-08-25
1919	1919-05-18	1919-08-30
1921	1921-06-03	1921-08-15
1922	1922-05-31	1922-08-08
1923	1923-06-28	1923-08-23
1924	1924-05-09	1924-09-07
1925	1925-05-14	1925-08-20
1926	1926-06-04	1926-08-25
1927	1927-06-07	1927-08-22
1928	1928-05-19	1928-09-03
1929	1929-05-21	1929-08-30
1930	1930-06-06	1930-08-22
1931	1931-05-12	1931-09-02
1932	1932-06-10	1932-08-27
1933	1933-06-13	1933-08-28
1934	1934-05-23	1934-08-28
1935	1935-06-07	1935-08-13
1936	1936-05-26	1936-08-29
1937	1937-06-01	1937-09-16
1938	1938-05-22	1938-09-15
1939	1939-05-13	1939-08-27
1940	1940-05-22	1940-09-11
1941	1941-06-11	1941-08-22
1942	1942-06-05	1942-08-23
1943	1943-06-14	1943-08-26
1944	1944-06-09	1944-09-12
1945	1945-05-29	1945-08-29
1946	1946-05-26	1946-09-02
1947	1947-05-25	1947-08-07
1951	1951-07-12	1951-08-22
1952	1952-07-09	1952-08-13
1953	1953-07-07	1953-08-18
1955	1955-06-10	1955-09-02
1956	1956-05-31	1956-08-23
1957	1957-07-22	1957-07-25
1958	1958-05-23	1958-08-25
1959	1959-07-11	1959-08-01
1960	1960-07-05	1960-08-12
1961	1961-06-02	1961-08-26

Every Fixed Threshold

Fixed thresholds at Tappen
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	44	64	1914	37
35 C (95 F): Days	33	24	1925	1
40 C (104 F): Days	4	2	1941	1
90 F (32.2 C): Days	43	47	1914	13
100 F (37.8 C): Days	16	8	1914	3
0 C (32 F): Ice days (max	45	71	1951	39
0 C (32 F): Frost days (min	44	195	1924	139
-10 C (14 F): Days with min	44	56	1916	9
-20 C (-4 F): Days with min	32	24	1916	1
-30 C (-22 F): Days with min	7	3	1957	3
20 C (68 F): Tropical nights (min	9	2	1960	1
10 mm (0.39 in): Days with 10 mm or more rain	43	20	1922	17
25 mm (0.98 in): Days with 25 mm or more rain	21	3	1951	1
10 cm (3.9 in): Days with 10 cm or more snowfall	40	9	1922	3
25 cm (9.8 in): Days with 25 cm or more snowfall	7	2	1951	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1913.

Download the Data

Data for Tappen 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Tappen Threshold Days by Year (CA001167980)

Key Facts for Tappen Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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