Chemult Threshold Days by Year (USC00351546)

15 fixed thresholds counted per year at Chemult (USC00351546): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chemult Thresholds

Chemult: days with 10 cm (3.9 in) or more of snowfall in 59 years, most in 1938 with 24.
Chemult: days with 10 mm (0.39 in) or more of precipitation in 57 years, most in 1998 with 30.
Chemult: days with a maximum temperature at or above 30 C (86 F) in 56 years, most in 1967 with 50.
Chemult: days with a maximum temperature at or below 0 C (32 F) in 56 years, most in 1971 with 38.
15 fixed thresholds have at least one qualifying day at Chemult.

Days at or above 30 C (86 F)

56 years with a qualifying day

Days per year at Chemult with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 50 in 1967.

Days at or above 30 C (86 F) per year at Chemult
Year	Days	Decade average
1937	37	39
1938	40	39
1939	40	39
1940	41	30.1
1941	23	30.1
1942	40	30.1
1943	29	30.1
1944	25	30.1
1945	45	30.1
1946	27	30.1
1947	15	30.1
1949	26	30.1
1952	39	26.5
1953	28	26.5
1954	22	26.5
1955	36	26.5
1956	18	26.5
1957	6	26.5
1958	36	26.5
1959	27	26.5
1960	29	24.8
1961	36	24.8
1962	16	24.8
1963	12	24.8
1964	18	24.8
1965	14	24.8
1966	22	24.8
1967	50	24.8
1968	25	24.8
1969	26	24.8
1970	34	28.1
1971	30	28.1
1972	33	28.1
1973	38	28.1
1974	39	28.1
1975	17	28.1
1976	10	28.1
1977	34	28.1
1978	18	28.1
1979	28	28.1
1980	16	27.5
1981	39	27.5
1996	41	28.5
1997	12	28.5
1998	39	28.5
1999	22	28.5
2001	35	33.8
2002	32	33.8
2005	25	33.8
2007	33	33.8
2009	44	33.8
2010	35	32
2012	23	32
2013	36	32
2014	38	32
2015	28	32

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

First to last qualifying date each year at Chemult
Year	First date	Last date
1937	1937-06-02	1937-09-16
1938	1938-06-03	1938-09-17
1939	1939-06-12	1939-09-19
1940	1940-05-22	1940-08-30
1941	1941-05-22	1941-08-16
1942	1942-06-29	1942-09-27
1943	1943-07-04	1943-09-24
1944	1944-06-29	1944-09-24
1945	1945-06-18	1945-09-13
1946	1946-06-19	1946-08-24
1947	1947-07-16	1947-09-23
1949	1949-06-14	1949-09-22
1952	1952-06-08	1952-10-02
1953	1953-07-04	1953-09-18
1954	1954-05-17	1954-09-26
1955	1955-06-06	1955-09-06
1956	1956-06-26	1956-08-31
1957	1957-06-22	1957-09-15
1958	1958-06-21	1958-10-04
1959	1959-06-18	1959-08-09
1960	1960-06-02	1960-08-19
1961	1961-06-14	1961-08-23
1962	1962-07-20	1962-09-18
1963	1963-06-16	1963-09-08
1964	1964-06-23	1964-09-24
1965	1965-07-05	1965-08-07
1966	1966-06-15	1966-09-05
1967	1967-06-18	1967-09-28
1968	1968-06-16	1968-09-01
1969	1969-06-03	1969-09-07
1970	1970-06-01	1970-08-29
1971	1971-07-14	1971-08-26
1972	1972-05-28	1972-09-03
1973	1973-06-20	1973-09-12
1974	1974-06-11	1974-09-24
1975	1975-07-04	1975-09-06
1976	1976-07-15	1976-09-01
1977	1977-06-05	1977-09-07
1978	1978-07-14	1978-08-10
1979	1979-06-24	1979-09-16
1980	1980-07-18	1980-08-11
1981	1981-06-25	1981-09-18
1996	1996-06-02	1996-10-08
1997	1997-05-11	1997-07-29
1998	1998-07-07	1998-09-15
1999	1999-06-15	1999-09-21
2001	2001-05-12	2001-10-02
2002	2002-06-17	2002-09-24
2005	2005-07-01	2005-09-09
2007	2007-06-01	2007-09-13
2009	2009-05-18	2009-09-28
2010	2010-06-28	2010-10-03
2012	2012-07-07	2012-08-21
2013	2013-06-06	2013-09-15
2014	2014-07-02	2014-09-21
2015	2015-06-08	2015-09-13

Every Fixed Threshold

Fixed thresholds at Chemult
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	56	50	1967	28
35 C (95 F): Days	32	8	1998	4
90 F (32.2 C): Days	53	26	1998	19
100 F (37.8 C): Days	4	3	2002	3
0 C (32 F): Ice days (max	56	38	1971	20
0 C (32 F): Frost days (min	52	308	1949	254
-10 C (14 F): Days with min	52	92	1949	30
-20 C (-4 F): Days with min	47	29	1949	6
-30 C (-22 F): Days with min	9	3	1949	1
10 mm (0.39 in): Days with 10 mm or more rain	57	30	1998	18
25 mm (0.98 in): Days with 25 mm or more rain	55	10	2014	5
50 mm (1.97 in): Days with 50 mm or more rain	24	3	1953	3
10 cm (3.9 in): Days with 10 cm or more snowfall	59	24	1938	16
25 cm (9.8 in): Days with 25 cm or more snowfall	51	10	1942	3
50 cm (19.7 in): Days with 50 cm or more snowfall	9	2	1938	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1937.

Download the Data

Data for Chemult 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).

Chemult Threshold Days by Year (USC00351546)

Key Facts for Chemult Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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