Riviere Au Tonnerre Weather Records (CA00704FEG0)

Record envelope, standing records and threshold days for Riviere Au Tonnerre (CA00704FEG0), Quebec, Canada, with 60 years of record.

Key Facts for Riviere Au Tonnerre

Riviere Au Tonnerre (CA00704FEG0) is a weather station in Quebec, Canada at 50.28 latitude and -64.78 longitude, 15 m (49 ft) above sea level.
The station reports from 1965 to 2024, 60 years of record.
1,464 records set at Riviere Au Tonnerre still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Quebec, Canada, 50.28 latitude, -64.78 longitude.
Elevation: 15 m (49 ft).
Period of record: 1965 to 2024, 60 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Riviere Au Tonnerre. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Riviere Au Tonnerre, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	8.9 C (48.0 F)	-40.0 C (-40.0 F)	n/a	n/a
Feb	7.0 C (44.6 F)	-33.9 C (-29.0 F)	n/a	n/a
Mar	10.6 C (51.1 F)	-31.7 C (-25.1 F)	n/a	n/a
Apr	15.6 C (60.1 F)	-20.0 C (-4.0 F)	n/a	n/a
May	22.8 C (73.0 F)	-11.1 C (12.0 F)	n/a	n/a
Jun	27.0 C (80.6 F)	-3.3 C (26.1 F)	n/a	n/a
Jul	28.5 C (83.3 F)	-1.0 C (30.2 F)	n/a	n/a
Aug	27.5 C (81.5 F)	-1.1 C (30.0 F)	n/a	n/a
Sep	25.6 C (78.1 F)	-5.6 C (21.9 F)	n/a	n/a
Oct	19.4 C (66.9 F)	-15.0 C (5.0 F)	n/a	n/a
Nov	12.2 C (54.0 F)	-22.2 C (-8.0 F)	n/a	n/a
Dec	8.5 C (47.3 F)	-37.0 C (-34.6 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Riviere Au Tonnerre still stand. 1972 holds the most, with 116.

Standing records at Riviere Au Tonnerre by the year they were set
Year set	Standing records
1965	17
1966	92
1967	113
1968	97
1969	110
1970	64
1971	76
1972	116
1973	69
1974	72
1975	51
1976	59
1977	70
1978	90
1979	92
1980	62
1981	88
1982	78
1983	48

Wettest Day of Each Month

Jan: 99.8 mm (3.9 in)

The wettest day on record for each calendar month at Riviere Au Tonnerre. The most was 99.8 mm (3.9 in) on 9 January 1978.

Record daily precipitation for each month at Riviere Au Tonnerre
Month	Record daily precipitation (mm)	Date
Jan	99.8 mm (3.9 in)	9 January 1978
Feb	56.6 mm (2.2 in)	3 February 1968
Mar	67.8 mm (2.7 in)	20 March 1975
Apr	56.9 mm (2.2 in)	25 April 1968
May	51.6 mm (2.0 in)	19 May 1976
Jun	59.0 mm (2.3 in)	20 June 1982
Jul	56.9 mm (2.2 in)	14 July 1971
Aug	52.1 mm (2.1 in)	19 August 1969
Sep	91.4 mm (3.6 in)	4 September 1972
Oct	82.8 mm (3.3 in)	20 October 1966
Nov	90.2 mm (3.6 in)	3 November 1966
Dec	52.8 mm (2.1 in)	17 December 1973

Period of Record Coverage

1965 to 1983

19 years of record at Riviere Au Tonnerre, 1965 to 1983. 5 years have data for under 90 percent of days and are left out of rankings: 1965, 1974, 1975, 1976, 1979.

Days with data per year at Riviere Au Tonnerre
Year	Days with data	Share of year	Complete
1965	61	17%	No
1966	365	100%	Yes
1967	364	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	365	100%	Yes
1973	362	99%	Yes
1974	303	83%	No
1975	212	58%	No
1976	282	77%	No
1977	340	93%	Yes
1978	362	99%	Yes
1979	327	90%	No
1980	361	99%	Yes
1981	346	95%	Yes
1982	355	97%	Yes
1983	359	98%	Yes

Latest Records

No records were set at this station in the latest data.

Climate Trend

14 complete years, 1966 to 1983

One stripe for each of 14 complete years at Riviere Au Tonnerre, 1966 to 1983. Blue stripes are years cooler than the station's own mean of 1.3 C (34.4 F); red stripes are warmer. The coolest year was 1972, at -1.1 C (30.0 F), and the warmest was 1981, at 3.3 C (37.9 F). The strongest colour marks a difference of 2.5 C (4.5 F).

Annual mean temperature at Riviere Au Tonnerre as warming stripes, 1966 to 1983
Year	Annual mean temperature	Difference from the station mean
1966	2.4 C	+1.05 C
1967	0.9 C	-0.38 C
1968	1.4 C	+0.07 C
1969	2.3 C	+0.97 C
1970	1.2 C	-0.11 C
1971	1.1 C	-0.18 C
1972	-1.1 C	-2.40 C
1973	1.7 C	+0.36 C
1977	2.0 C	+0.72 C
1978	0.2 C	-1.12 C
1980	1.2 C	-0.09 C
1981	3.3 C	+1.96 C
1982	0.1 C	-1.23 C
1983	1.8 C	+0.44 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1965 to 1983

Yearly extremes at Riviere Au Tonnerre: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	28.5 C (83.3 F)	1981	26.7 C (80.1 F)	19
Coldest night (TNn)	-40.0 C (-40.0 F)	1973	-32.2 C (-26.0 F)	19
Wettest day (Rx1day)	99.8 mm (3.9 in)	1978	56.6 mm (2.2 in)	19
Wettest five days (Rx5day)	130.5 mm (5.1 in)	1972	89.7 mm (3.5 in)	19
Longest dry spell (CDD)	22 days	1972	16 days	19

Hottest day (TXx)

The hottest day of the year at Riviere Au Tonnerre, 1965 to 1983. The record is 28.5 C (83.3 F) in 1981, marked on the chart; the median year is 26.7 C (80.1 F).

Hottest day (TXx) at Riviere Au Tonnerre by year
Year	Hottest day (TXx)
1965	5.0 C (41.0 F)
1966	26.7 C (80.1 F)
1967	27.8 C (82.0 F)
1968	27.8 C (82.0 F)
1969	26.7 C (80.1 F)
1970	24.4 C (75.9 F)
1971	25.0 C (77.0 F)
1972	24.4 C (75.9 F)
1973	26.1 C (79.0 F)
1974	26.7 C (80.1 F)
1975	26.7 C (80.1 F)
1976	26.7 C (80.1 F)
1977	25.6 C (78.1 F)
1978	28.3 C (82.9 F)
1979	25.6 C (78.1 F)
1980	27.5 C (81.5 F)
1981	28.5 C (83.3 F)
1982	26.0 C (78.8 F)
1983	27.0 C (80.6 F)

Coldest night (TNn)

The coldest night of the year at Riviere Au Tonnerre, 1965 to 1983. The record is -40.0 C (-40.0 F) in 1973, marked on the chart; the median year is -32.2 C (-26.0 F).

Coldest night (TNn) at Riviere Au Tonnerre by year
Year	Coldest night (TNn)
1965	-26.7 C (-16.1 F)
1966	-31.1 C (-24.0 F)
1967	-32.2 C (-26.0 F)
1968	-32.2 C (-26.0 F)
1969	-28.3 C (-18.9 F)
1970	-36.1 C (-33.0 F)
1971	-39.4 C (-38.9 F)
1972	-34.4 C (-29.9 F)
1973	-40.0 C (-40.0 F)
1974	-35.6 C (-32.1 F)
1975	-23.3 C (-9.9 F)
1976	-31.7 C (-25.1 F)
1977	-31.7 C (-25.1 F)
1978	-35.0 C (-31.0 F)
1979	-27.8 C (-18.0 F)
1980	-37.0 C (-34.6 F)
1981	-29.0 C (-20.2 F)
1982	-37.0 C (-34.6 F)
1983	-31.5 C (-24.7 F)

Wettest day (Rx1day)

The wettest day of the year at Riviere Au Tonnerre, 1965 to 1983. The record is 99.8 mm (3.9 in) in 1978, marked on the chart; the median year is 56.6 mm (2.2 in).

Wettest day (Rx1day) at Riviere Au Tonnerre by year
Year	Wettest day (Rx1day)
1965	29.5 mm (1.2 in)
1966	90.2 mm (3.6 in)
1967	33.5 mm (1.3 in)
1968	56.9 mm (2.2 in)
1969	52.1 mm (2.1 in)
1970	49.3 mm (1.9 in)
1971	56.9 mm (2.2 in)
1972	91.4 mm (3.6 in)
1973	52.8 mm (2.1 in)
1974	31.2 mm (1.2 in)
1975	67.8 mm (2.7 in)
1976	51.6 mm (2.0 in)
1977	81.0 mm (3.2 in)
1978	99.8 mm (3.9 in)
1979	57.9 mm (2.3 in)
1980	47.3 mm (1.9 in)
1981	44.2 mm (1.7 in)
1982	59.0 mm (2.3 in)
1983	56.6 mm (2.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Riviere Au Tonnerre, 1965 to 1983. The record is 130.5 mm (5.1 in) in 1972, marked on the chart; the median year is 89.7 mm (3.5 in).

Wettest five days (Rx5day) at Riviere Au Tonnerre by year
Year	Wettest five days (Rx5day)
1965	58.2 mm (2.3 in)
1966	108.0 mm (4.3 in)
1967	53.9 mm (2.1 in)
1968	74.4 mm (2.9 in)
1969	65.1 mm (2.6 in)
1970	99.6 mm (3.9 in)
1971	108.7 mm (4.3 in)
1972	130.5 mm (5.1 in)
1973	54.9 mm (2.2 in)
1974	56.1 mm (2.2 in)
1975	73.0 mm (2.9 in)
1976	89.7 mm (3.5 in)
1977	88.9 mm (3.5 in)
1978	125.7 mm (4.9 in)
1979	69.3 mm (2.7 in)
1980	93.6 mm (3.7 in)
1981	99.0 mm (3.9 in)
1982	97.5 mm (3.8 in)
1983	105.4 mm (4.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Riviere Au Tonnerre, 1965 to 1983. The record is 22 days in 1972, marked on the chart; the median year is 16 days.

Longest dry spell (CDD) at Riviere Au Tonnerre by year
Year	Longest dry spell (CDD)
1965	8 days
1966	13 days
1967	16 days
1968	12 days
1969	15 days
1970	16 days
1971	11 days
1972	22 days
1973	21 days
1974	20 days
1975	18 days
1976	18 days
1977	18 days
1978	10 days
1979	20 days
1980	17 days
1981	16 days
1982	12 days
1983	9 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Download the Data

Data for Riviere Au Tonnerre standing records by year: CSV or JSON. Field meanings are on the data page.
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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).