Riviere Au Tonnerre Threshold Days by Year (CA00704FEG0)

11 fixed thresholds counted per year at Riviere Au Tonnerre (CA00704FEG0): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Riviere Au Tonnerre Thresholds

Riviere Au Tonnerre: days with 10 cm (3.9 in) or more of snowfall in 16 years, most in 1971 with 16.
Riviere Au Tonnerre: nights with a minimum temperature at or below 0 C (32 F) in 15 years, most in 1972 with 229.
Riviere Au Tonnerre: nights with a minimum temperature at or below -10 C (14 F) in 15 years, most in 1972 with 119.
Riviere Au Tonnerre: nights with a minimum temperature at or below -20 C (-4 F) in 15 years, most in 1972 with 62.
11 fixed thresholds have at least one qualifying day at Riviere Au Tonnerre.

Nights at or below 0 C (32 F)

15 years with a qualifying day

Days per year at Riviere Au Tonnerre with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 229 in 1972.

Nights at or below 0 C (32 F) per year at Riviere Au Tonnerre
Year	Days	Decade average
1966	204	200.5
1967	206	200.5
1968	191	200.5
1969	201	200.5
1970	205	202.3
1971	198	202.3
1972	229	202.3
1973	210	202.3
1977	177	202.3
1978	224	202.3
1979	173	202.3
1980	207	196.8
1981	187	196.8
1982	202	196.8
1983	191	196.8

For each year, a bar from the first to the last day at Riviere Au Tonnerre meeting 0 C (32 F).

First to last qualifying date each year at Riviere Au Tonnerre
Year	First date	Last date
1966	1966-01-01	1966-12-31
1967	1967-01-01	1967-12-31
1968	1968-01-01	1968-12-31
1969	1969-01-01	1969-12-31
1970	1970-01-01	1970-12-31
1971	1971-01-01	1971-12-31
1972	1972-01-01	1972-12-31
1973	1973-01-01	1973-12-31
1977	1977-01-01	1977-12-31
1978	1978-01-01	1978-12-31
1979	1979-01-01	1979-12-31
1980	1980-01-01	1980-12-31
1981	1981-01-07	1981-12-31
1982	1982-01-04	1982-12-31
1983	1983-01-01	1983-12-31

Every Fixed Threshold

Fixed thresholds at Riviere Au Tonnerre
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
0 C (32 F): Ice days (max	14	130	1972	109
0 C (32 F): Frost days (min	15	229	1972	191
-10 C (14 F): Days with min	15	119	1972	90
-20 C (-4 F): Days with min	15	62	1972	35
-30 C (-22 F): Days with min	12	17	1972	3
-40 C (-40 F): Days with min	1	1	1973	1
10 mm (0.39 in): Days with 10 mm or more rain	15	50	1983	50
25 mm (0.98 in): Days with 25 mm or more rain	15	14	1966	6
50 mm (1.97 in): Days with 50 mm or more rain	11	3	1971	2
10 cm (3.9 in): Days with 10 cm or more snowfall	16	16	1971	6
25 cm (9.8 in): Days with 25 cm or more snowfall	4	2	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 1966.

Download the Data

Data for Riviere Au Tonnerre 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).

Riviere Au Tonnerre Threshold Days by Year (CA00704FEG0)

Key Facts for Riviere Au Tonnerre Thresholds

Nights at or below 0 C (32 F)

Every Fixed Threshold

Download the Data

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