Tionesta 2 SE Lake Threshold Days by Year (USC00368873)

16 fixed thresholds counted per year at Tionesta 2 SE Lake (USC00368873): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tionesta 2 SE Lake Thresholds

Tionesta 2 SE Lake: days with 10 mm (0.39 in) or more of precipitation in 81 years, most in 2011 with 51.
Tionesta 2 SE Lake: days with 25 mm (0.98 in) or more of precipitation in 81 years, most in 2006 with 17.
Tionesta 2 SE Lake: days with a maximum temperature at or above 30 C (86 F) in 75 years, most in 2012 with 58.
Tionesta 2 SE Lake: days with a maximum temperature at or below 0 C (32 F) in 75 years, most in 1960 with 71.
16 fixed thresholds have at least one qualifying day at Tionesta 2 SE Lake.

Days at or above 30 C (86 F)

75 years with a qualifying day

Days per year at Tionesta 2 SE Lake with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 58 in 2012.

Days at or above 30 C (86 F) per year at Tionesta 2 SE Lake
Year	Days	Decade average
1944	42	29.5
1946	22	29.5
1948	16	29.5
1949	38	29.5
1950	7	21.2
1951	18	21.2
1952	39	21.2
1953	31	21.2
1954	15	21.2
1955	36	21.2
1956	9	21.2
1957	13	21.2
1958	5	21.2
1959	39	21.2
1960	5	17.9
1961	17	17.9
1962	20	17.9
1963	16	17.9
1964	29	17.9
1965	16	17.9
1966	31	17.9
1967	10	17.9
1968	24	17.9
1969	11	17.9
1970	13	13.2
1971	11	13.2
1972	10	13.2
1973	21	13.2
1974	11	13.2
1975	16	13.2
1976	11	13.2
1977	18	13.2
1978	14	13.2
1979	7	13.2
1980	10	12
1981	10	12
1982	7	12
1983	28	12
1984	11	12
1985	6	12
1992	13	27.9
1993	39	27.9
1994	24	27.9
1995	35	27.9
1996	14	27.9
1997	20	27.9
1998	38	27.9
1999	40	27.9
2000	14	19.2
2001	36	19.2
2002	36	19.2
2003	11	19.2
2004	2	19.2
2005	29	19.2
2006	17	19.2
2007	23	19.2
2008	17	19.2
2009	7	19.2
2010	34	35.1
2011	39	35.1
2012	58	35.1
2013	31	35.1
2014	15	35.1
2015	23	35.1
2016	41	35.1
2017	28	35.1
2018	43	35.1
2019	39	35.1
2020	36	28
2021	30	28
2022	29	28
2023	14	28
2024	30	28
2025	36	28
2026	21	28

For each year, a bar from the first to the last day at Tionesta 2 SE Lake meeting 30 C (86 F).

First to last qualifying date each year at Tionesta 2 SE Lake
Year	First date	Last date
1944	1944-05-04	1944-09-02
1946	1946-06-24	1946-09-19
1948	1948-06-29	1948-09-05
1949	1949-05-05	1949-08-28
1950	1950-05-06	1950-08-29
1951	1951-06-25	1951-10-06
1952	1952-06-09	1952-09-15
1953	1953-06-06	1953-10-01
1954	1954-06-12	1954-09-30
1955	1955-06-07	1955-09-20
1956	1956-06-13	1956-09-02
1957	1957-06-14	1957-09-03
1958	1958-07-03	1958-07-29
1959	1959-05-07	1959-09-30
1960	1960-07-27	1960-09-10
1961	1961-06-13	1961-09-25
1962	1962-05-15	1962-09-01
1963	1963-06-11	1963-07-29
1964	1964-05-20	1964-09-11
1965	1965-06-29	1965-09-23
1966	1966-06-14	1966-09-01
1967	1967-06-11	1967-07-10
1968	1968-06-06	1968-08-24
1969	1969-05-30	1969-08-25
1970	1970-06-10	1970-09-25
1971	1971-05-20	1971-09-11
1972	1972-05-25	1972-08-25
1973	1973-06-11	1973-09-06
1974	1974-05-15	1974-08-22
1975	1975-06-23	1975-08-27
1976	1976-04-19	1976-09-10
1977	1977-05-18	1977-09-02
1978	1978-05-27	1978-09-21
1979	1979-05-09	1979-08-01
1980	1980-06-26	1980-09-02
1981	1981-06-16	1981-07-20
1982	1982-07-08	1982-08-08
1983	1983-06-13	1983-09-11
1984	1984-06-09	1984-08-11
1985	1985-04-24	1985-09-08
1992	1992-05-23	1992-08-27
1993	1993-05-10	1993-09-15
1994	1994-06-14	1994-08-21
1995	1995-06-08	1995-09-07
1996	1996-05-19	1996-08-24
1997	1997-06-21	1997-08-13
1998	1998-05-15	1998-09-27
1999	1999-05-31	1999-09-04
2000	2000-05-10	2000-09-12
2001	2001-05-05	2001-09-10
2002	2002-04-19	2002-09-21
2003	2003-06-25	2003-08-31
2004	2004-05-14	2004-06-10
2005	2005-06-06	2005-08-19
2006	2006-05-30	2006-08-04
2007	2007-05-24	2007-09-26
2008	2008-06-07	2008-09-06
2009	2009-04-27	2009-08-18
2010	2010-05-27	2010-09-25
2011	2011-05-13	2011-09-04
2012	2012-05-04	2012-09-08
2013	2013-05-21	2013-09-12
2014	2014-05-09	2014-09-06
2015	2015-05-09	2015-09-09
2016	2016-05-28	2016-09-11
2017	2017-05-18	2017-09-28
2018	2018-05-03	2018-10-10
2019	2019-05-20	2019-10-02
2020	2020-05-26	2020-09-10
2021	2021-05-21	2021-08-30
2022	2022-05-13	2022-08-30
2023	2023-05-30	2023-09-06
2024	2024-05-04	2024-08-31
2025	2025-04-25	2025-08-20
2026	2026-05-19	2026-09-10

Every Fixed Threshold

Fixed thresholds at Tionesta 2 SE Lake
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	75	58	2012	21
35 C (95 F): Days	17	7	1952	1
90 F (32.2 C): Days	59	24	1952	6
100 F (37.8 C): Days	1	2	2011	2
0 C (32 F): Ice days (max	75	71	1960	34
0 C (32 F): Frost days (min	70	178	1969	85
-10 C (14 F): Days with min	70	74	1969	32
-20 C (-4 F): Days with min	58	22	1970	7
-30 C (-22 F): Days with min	7	5	1963	1
20 C (68 F): Tropical nights (min	44	28	2018	6
10 mm (0.39 in): Days with 10 mm or more rain	81	51	2011	36
25 mm (0.98 in): Days with 25 mm or more rain	81	17	2006	7
50 mm (1.97 in): Days with 50 mm or more rain	47	4	1953	3
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1954	1
10 cm (3.9 in): Days with 10 cm or more snowfall	65	10	1960	2
25 cm (9.8 in): Days with 25 cm or more snowfall	13	2	1961	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1944.

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Data for Tionesta 2 SE Lake 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).

Tionesta 2 SE Lake Threshold Days by Year (USC00368873)

Key Facts for Tionesta 2 SE Lake Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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