Lachute Threshold Days by Year (CA007033650)

14 fixed thresholds counted per year at Lachute (CA007033650): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lachute Thresholds

Lachute: days with a maximum temperature at or above 30 C (86 F) in 21 years, most in 1983 with 24.
Lachute: days with a maximum temperature at or below 0 C (32 F) in 21 years, most in 1978 with 106.
Lachute: nights with a minimum temperature at or below 0 C (32 F) in 21 years, most in 1974 with 196.
Lachute: nights with a minimum temperature at or below -10 C (14 F) in 21 years, most in 1978 with 102.
14 fixed thresholds have at least one qualifying day at Lachute.

Days at or above 30 C (86 F)

21 years with a qualifying day

Days per year at Lachute with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 24 in 1983.

Days at or above 30 C (86 F) per year at Lachute
Year	Days	Decade average
1963	16	8.3
1964	9	8.3
1965	4	8.3
1966	11	8.3
1967	4	8.3
1968	6	8.3
1969	8	8.3
1970	13	10.4
1971	9	10.4
1972	4	10.4
1973	14	10.4
1974	3	10.4
1975	21	10.4
1976	9	10.4
1977	12	10.4
1978	12	10.4
1979	7	10.4
1980	4	10
1981	4	10
1982	8	10
1983	24	10

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

First to last qualifying date each year at Lachute
Year	First date	Last date
1963	1963-06-04	1963-07-29
1964	1964-06-19	1964-07-28
1965	1965-06-28	1965-09-22
1966	1966-05-24	1966-08-09
1967	1967-06-03	1967-07-20
1968	1968-07-14	1968-07-22
1969	1969-06-12	1969-08-31
1970	1970-07-08	1970-08-16
1971	1971-05-19	1971-08-19
1972	1972-07-12	1972-07-21
1973	1973-07-07	1973-09-05
1974	1974-07-14	1974-08-22
1975	1975-05-20	1975-08-26
1976	1976-06-06	1976-08-21
1977	1977-05-17	1977-08-29
1978	1978-05-27	1978-08-16
1979	1979-05-09	1979-07-25
1980	1980-06-24	1980-08-24
1981	1981-06-16	1981-07-10
1982	1982-05-07	1982-07-22
1983	1983-06-12	1983-09-20

Every Fixed Threshold

Fixed thresholds at Lachute
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	21	24	1983	24
35 C (95 F): Days	2	1	1964	1
90 F (32.2 C): Days	14	10	1975	3
0 C (32 F): Ice days (max	21	106	1978	78
0 C (32 F): Frost days (min	21	196	1974	173
-10 C (14 F): Days with min	21	102	1978	72
-20 C (-4 F): Days with min	21	43	1976	21
-30 C (-22 F): Days with min	20	7	1979	2
20 C (68 F): Tropical nights (min	16	9	1973	2
10 mm (0.39 in): Days with 10 mm or more rain	21	46	1981	43
25 mm (0.98 in): Days with 25 mm or more rain	21	13	1972	8
50 mm (1.97 in): Days with 50 mm or more rain	5	3	1973	1
10 cm (3.9 in): Days with 10 cm or more snowfall	21	14	1971	7
25 cm (9.8 in): Days with 25 cm or more snowfall	8	2	1966	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1963.

Download the Data

Data for Lachute 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).

Lachute Threshold Days by Year (CA007033650)

Key Facts for Lachute Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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