St Hyacinthe Threshold Days by Year (CA007027360)

16 fixed thresholds counted per year at St Hyacinthe (CA007027360): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for St Hyacinthe Thresholds

St Hyacinthe: days with a maximum temperature at or above 30 C (86 F) in 49 years, most in 1955 with 32.
St Hyacinthe: days with a maximum temperature at or below 0 C (32 F) in 49 years, most in 1940 with 103.
St Hyacinthe: nights with a minimum temperature at or below 0 C (32 F) in 49 years, most in 1940 with 191.
St Hyacinthe: nights with a minimum temperature at or below -10 C (14 F) in 49 years, most in 1939 with 104.
16 fixed thresholds have at least one qualifying day at St Hyacinthe.

Days at or above 30 C (86 F)

49 years with a qualifying day

Days per year at St Hyacinthe with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 32 in 1955.

Days at or above 30 C (86 F) per year at St Hyacinthe
Year	Days	Decade average
1891	9	11
1892	11	11
1893	10	11
1894	14	11
1935	17	18.6
1936	11	18.6
1937	23	18.6
1938	22	18.6
1939	20	18.6
1940	18	18.1
1941	18	18.1
1942	11	18.1
1943	6	18.1
1944	24	18.1
1945	19	18.1
1946	16	18.1
1947	24	18.1
1948	18	18.1
1949	27	18.1
1950	9	12.5
1951	6	12.5
1952	14	12.5
1953	17	12.5
1954	2	12.5
1955	32	12.5
1956	6	12.5
1957	12	12.5
1958	4	12.5
1959	23	12.5
1960	12	11.8
1961	17	11.8
1962	8	11.8
1963	19	11.8
1964	14	11.8
1965	8	11.8
1966	13	11.8
1967	8	11.8
1968	8	11.8
1969	11	11.8
1970	22	12.6
1971	16	12.6
1972	6	12.6
1973	16	12.6
1974	3	12.6
1975	20	12.6
1976	4	12.6
1977	11	12.6
1978	10	12.6
1979	18	12.6

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

First to last qualifying date each year at St Hyacinthe
Year	First date	Last date
1891	1891-06-11	1891-09-25
1892	1892-06-01	1892-08-19
1893	1893-05-12	1893-08-12
1894	1894-06-16	1894-07-29
1935	1935-07-04	1935-08-20
1936	1936-05-08	1936-08-09
1937	1937-05-31	1937-09-03
1938	1938-06-11	1938-08-21
1939	1939-05-08	1939-09-16
1940	1940-06-05	1940-08-30
1941	1941-05-21	1941-08-08
1942	1942-06-10	1942-09-18
1943	1943-06-25	1943-07-14
1944	1944-05-04	1944-08-16
1945	1945-05-22	1945-09-09
1946	1946-06-25	1946-09-20
1947	1947-06-11	1947-09-11
1948	1948-06-29	1948-09-08
1949	1949-06-11	1949-08-27
1950	1950-05-26	1950-07-13
1951	1951-06-19	1951-09-13
1952	1952-07-03	1952-08-28
1953	1953-05-10	1953-09-04
1954	1954-06-22	1954-08-25
1955	1955-06-18	1955-09-19
1956	1956-06-12	1956-08-09
1957	1957-06-15	1957-08-25
1958	1958-07-14	1958-08-31
1959	1959-05-07	1959-09-10
1960	1960-06-17	1960-09-09
1961	1961-05-15	1961-09-25
1962	1962-04-28	1962-08-31
1963	1963-06-03	1963-07-29
1964	1964-05-23	1964-07-29
1965	1965-06-20	1965-09-22
1966	1966-05-24	1966-08-09
1967	1967-06-02	1967-08-17
1968	1968-07-09	1968-07-22
1969	1969-06-12	1969-08-31
1970	1970-06-02	1970-08-16
1971	1971-05-19	1971-08-19
1972	1972-05-23	1972-07-21
1973	1973-07-07	1973-09-05
1974	1974-06-10	1974-07-29
1975	1975-05-20	1975-08-17
1976	1976-06-10	1976-08-21
1977	1977-05-21	1977-08-29
1978	1978-05-27	1978-08-16
1979	1979-05-09	1979-08-04

Every Fixed Threshold

Fixed thresholds at St Hyacinthe
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	49	32	1955	18
35 C (95 F): Days	8	3	1944	2
90 F (32.2 C): Days	42	16	1955	4
0 C (32 F): Ice days (max	49	103	1940	66
0 C (32 F): Frost days (min	49	191	1940	141
-10 C (14 F): Days with min	49	104	1939	60
-20 C (-4 F): Days with min	49	44	1944	23
-30 C (-22 F): Days with min	33	8	1943	3
20 C (68 F): Tropical nights (min	47	23	1973	11
25 C (77 F): Days with min	1	1	1939	1
10 mm (0.39 in): Days with 10 mm or more rain	48	51	1972	30
25 mm (0.98 in): Days with 25 mm or more rain	48	12	1892	6
50 mm (1.97 in): Days with 50 mm or more rain	16	3	1893	1
10 cm (3.9 in): Days with 10 cm or more snowfall	49	12	1939	5
25 cm (9.8 in): Days with 25 cm or more snowfall	22	4	1947	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1968	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1891.

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Data for St Hyacinthe 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).

St Hyacinthe Threshold Days by Year (CA007027360)

Key Facts for St Hyacinthe Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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