Tupper Lake Sunmount Threshold Days by Year (USC00308631)

16 fixed thresholds counted per year at Tupper Lake Sunmount (USC00308631): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tupper Lake Sunmount Thresholds

Tupper Lake Sunmount: days with 10 mm (0.39 in) or more of precipitation in 85 years, most in 2003 with 47.
Tupper Lake Sunmount: days with a maximum temperature at or below 0 C (32 F) in 84 years, most in 1926 with 115.
Tupper Lake Sunmount: days with 25 mm (0.98 in) or more of precipitation in 84 years, most in 2002 with 15.
Tupper Lake Sunmount: nights with a minimum temperature at or below 0 C (32 F) in 83 years, most in 1926 with 220.
16 fixed thresholds have at least one qualifying day at Tupper Lake Sunmount.

Days at or above 30 C (86 F)

77 years with a qualifying day

Days per year at Tupper Lake Sunmount with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 24 in 1937.

Days at or above 30 C (86 F) per year at Tupper Lake Sunmount
Year	Days	Decade average
1901	11	5.3
1902	1	5.3
1905	4	5.3
1912	7	7
1925	10	4.3
1926	2	4.3
1927	1	4.3
1931	13	11.3
1932	2	11.3
1933	7	11.3
1934	7	11.3
1935	7	11.3
1936	6	11.3
1937	24	11.3
1938	23	11.3
1939	13	11.3
1941	8	8.8
1942	3	8.8
1943	2	8.8
1944	15	8.8
1945	8	8.8
1946	6	8.8
1947	15	8.8
1948	7	8.8
1949	15	8.8
1950	4	9.9
1952	20	9.9
1953	13	9.9
1955	20	9.9
1956	3	9.9
1957	2	9.9
1959	7	9.9
1960	2	5.7
1961	2	5.7
1962	5	5.7
1963	11	5.7
1964	6	5.7
1965	7	5.7
1966	10	5.7
1967	4	5.7
1968	5	5.7
1969	5	5.7
1970	6	5.2
1971	5	5.2
1972	2	5.2
1973	9	5.2
1974	2	5.2
1975	9	5.2
1976	1	5.2
1977	6	5.2
1978	8	5.2
1979	4	5.2
1980	1	4.1
1981	3	4.1
1982	1	4.1
1984	6	4.1
1986	2	4.1
1987	11	4.1
1989	5	4.1
1990	4	4.7
1993	7	4.7
1998	3	4.7
2000	1	7.8
2001	10	7.8
2002	14	7.8
2003	5	7.8
2005	14	7.8
2006	9	7.8
2007	11	7.8
2008	4	7.8
2009	2	7.8
2015	5	7.4
2016	8	7.4
2017	7	7.4
2018	15	7.4
2019	2	7.4
2026	5	5

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

First to last qualifying date each year at Tupper Lake Sunmount
Year	First date	Last date
1901	1901-06-26	1901-09-06
1902	1902-07-30	1902-07-30
1905	1905-06-15	1905-07-12
1912	1912-07-03	1912-07-15
1925	1925-06-03	1925-09-01
1926	1926-07-10	1926-07-21
1927	1927-06-30	1927-06-30
1931	1931-05-19	1931-09-13
1932	1932-08-02	1932-09-01
1933	1933-06-09	1933-07-23
1934	1934-06-02	1934-08-08
1935	1935-07-05	1935-08-18
1936	1936-07-08	1936-08-16
1937	1937-05-31	1937-09-24
1938	1938-04-28	1938-08-21
1939	1939-05-07	1939-09-16
1941	1941-06-20	1941-07-31
1942	1942-06-30	1942-07-19
1943	1943-07-10	1943-07-13
1944	1944-05-03	1944-08-16
1945	1945-06-24	1945-09-08
1946	1946-06-25	1946-07-19
1947	1947-06-10	1947-08-25
1948	1948-06-29	1948-08-28
1949	1949-06-12	1949-08-26
1950	1950-06-09	1950-07-09
1952	1952-06-17	1952-09-12
1953	1953-06-20	1953-09-03
1955	1955-06-18	1955-08-22
1956	1956-06-13	1956-06-15
1957	1957-06-17	1957-06-18
1959	1959-06-30	1959-09-10
1960	1960-06-29	1960-09-09
1961	1961-09-02	1961-09-05
1962	1962-05-17	1962-09-01
1963	1963-06-05	1963-07-30
1964	1964-07-01	1964-07-29
1965	1965-06-29	1965-09-23
1966	1966-05-24	1966-08-10
1967	1967-06-04	1967-06-12
1968	1968-07-14	1968-07-19
1969	1969-06-13	1969-07-18
1970	1970-07-25	1970-08-16
1971	1971-05-20	1971-08-20
1972	1972-07-13	1972-07-16
1973	1973-06-12	1973-09-06
1974	1974-06-11	1974-07-15
1975	1975-05-21	1975-08-04
1976	1976-07-07	1976-07-07
1977	1977-05-21	1977-08-29
1978	1978-05-28	1978-07-22
1979	1979-07-14	1979-07-26
1980	1980-07-16	1980-07-16
1981	1981-07-01	1981-07-10
1982	1982-08-17	1982-08-17
1984	1984-06-08	1984-08-15
1986	1986-07-07	1986-07-20
1987	1987-05-31	1987-08-18
1989	1989-07-04	1989-07-28
1990	1990-04-29	1990-07-31
1993	1993-06-26	1993-08-28
1998	1998-06-22	1998-07-16
2000	2000-06-27	2000-06-27
2001	2001-06-15	2001-08-10
2002	2002-06-22	2002-09-11
2003	2003-06-24	2003-07-05
2005	2005-06-07	2005-08-11
2006	2006-05-31	2006-08-03
2007	2007-06-09	2007-09-08
2008	2008-06-10	2008-07-09
2009	2009-06-26	2009-08-18
2015	2015-07-20	2015-08-19
2016	2016-05-28	2016-08-13
2017	2017-06-12	2017-09-27
2018	2018-07-02	2018-09-06
2019	2019-07-21	2019-07-30
2026	2026-05-19	2026-07-24

Every Fixed Threshold

Fixed thresholds at Tupper Lake Sunmount
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	77	24	1937	5
35 C (95 F): Days	7	3	1937	1
90 F (32.2 C): Days	38	9	1937	1
0 C (32 F): Ice days (max	84	115	1926	16
0 C (32 F): Frost days (min	83	220	1926	43
-10 C (14 F): Days with min	83	121	1926	23
-20 C (-4 F): Days with min	83	56	1980	11
-30 C (-22 F): Days with min	67	15	1912	3
20 C (68 F): Tropical nights (min	39	4	1955	1
25 C (77 F): Days with min	1	1	1925	1
10 mm (0.39 in): Days with 10 mm or more rain	85	47	2003	18
25 mm (0.98 in): Days with 25 mm or more rain	84	15	2002	1
50 mm (1.97 in): Days with 50 mm or more rain	38	4	1989	1
10 cm (3.9 in): Days with 10 cm or more snowfall	64	16	2007	3
25 cm (9.8 in): Days with 25 cm or more snowfall	28	5	1993	1
50 cm (19.7 in): Days with 50 cm or more snowfall	3	1	1971	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1901.

Download the Data

Data for Tupper Lake Sunmount 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).

Tupper Lake Sunmount Threshold Days by Year (USC00308631)

Key Facts for Tupper Lake Sunmount Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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