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Built 2026-10-17 (17 October 2026)

Coteau du Lac Weather Records (CA007011947)

Record envelope, standing records and threshold days for Coteau du Lac (CA007011947), Quebec, Canada, with 59 years of record.

Key Facts for Coteau du Lac

  • Coteau du Lac (CA007011947) is a weather station in Quebec, Canada at 45.32 latitude and -74.17 longitude, 49 m (161 ft) above sea level.
  • The station reports from 1966 to 2024, 59 years of record.
  • 1,464 records set at Coteau du Lac 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, 45.32 latitude, -74.17 longitude.
  • Elevation: 49 m (161 ft).
  • Period of record: 1966 to 2024, 59 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Coteau du Lac, with 2026 drawn through them The band shows the record high and record low for each calendar day at Coteau du Lac. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Coteau du Lac. 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 Coteau du Lac, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan12.0 C (53.6 F)-36.0 C (-32.8 F)n/an/a
Feb15.0 C (59.0 F)-37.2 C (-35.0 F)n/an/a
Mar18.3 C (64.9 F)-30.0 C (-22.0 F)n/an/a
Apr28.9 C (84.0 F)-14.0 C (6.8 F)n/an/a
May32.2 C (90.0 F)-4.0 C (24.8 F)n/an/a
Jun32.2 C (90.0 F)0.0 C (32.0 F)n/an/a
Jul33.9 C (93.0 F)4.4 C (39.9 F)n/an/a
Aug35.0 C (95.0 F)0.6 C (33.1 F)n/an/a
Sep31.7 C (89.1 F)-6.0 C (21.2 F)n/an/a
Oct27.8 C (82.0 F)-8.3 C (17.1 F)n/an/a
Nov22.8 C (73.0 F)-21.7 C (-7.1 F)n/an/a
Dec16.0 C (60.8 F)-33.0 C (-27.4 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Coteau du Lac by the year they were set 1,464 records at Coteau du Lac still stand. 1971 holds the most, with 110. 0501001501966: 431967: 901968: 941969: 771970: 1011971: 1101972: 751973: 881974: 751975: 631976: 791977: 781978: 681979: 971980: 701981: 911982: 881983: 77196619681970197219741976197819801982
1,464 records at Coteau du Lac still stand. 1971 holds the most, with 110.
Standing records at Coteau du Lac by the year they were set
Year setStanding records
196643
196790
196894
196977
1970101
1971110
197275
197388
197475
197563
197679
197778
197868
197997
198070
198191
198288
198377

Wettest Day of Each Month

Aug: 83.0 mm (3.3 in)
Record daily precipitation for each month at Coteau du Lac The wettest day on record for each calendar month at Coteau du Lac. The most was 83.0 mm (3.3 in) on 25 August 1982. 0255075100 Jan: 26.9 mm (1.1 in), 30 January 1969 Jan Feb: 28.4 mm (1.1 in), 13 February 1971 Feb Mar: 44.5 mm (1.8 in), 20 March 1975 Mar Apr: 46.0 mm (1.8 in), 1 April 1973 Apr May: 33.5 mm (1.3 in), 9 May 1974 May Jun: 47.6 mm (1.9 in), 3 June 1981 Jun Jul: 56.1 mm (2.2 in), 28 July 1974 Jul Aug: 83.0 mm (3.3 in), 25 August 1982 Aug Sep: 59.9 mm (2.4 in), 14 September 1979 Sep Oct: 49.5 mm (1.9 in), 9 October 1976 Oct Nov: 33.8 mm (1.3 in), 28 November 1968 Nov Dec: 38.1 mm (1.5 in), 7 December 1974 Dec
The wettest day on record for each calendar month at Coteau du Lac. The most was 83.0 mm (3.3 in) on 25 August 1982.
Record daily precipitation for each month at Coteau du Lac
MonthRecord daily precipitation (mm)Date
Jan26.9 mm (1.1 in)30 January 1969
Feb28.4 mm (1.1 in)13 February 1971
Mar44.5 mm (1.8 in)20 March 1975
Apr46.0 mm (1.8 in)1 April 1973
May33.5 mm (1.3 in)9 May 1974
Jun47.6 mm (1.9 in)3 June 1981
Jul56.1 mm (2.2 in)28 July 1974
Aug83.0 mm (3.3 in)25 August 1982
Sep59.9 mm (2.4 in)14 September 1979
Oct49.5 mm (1.9 in)9 October 1976
Nov33.8 mm (1.3 in)28 November 1968
Dec38.1 mm (1.5 in)7 December 1974

Period of Record Coverage

1966 to 1983
Days with data per year at Coteau du Lac 18 years of record at Coteau du Lac, 1966 to 1983. 6 years have data for under 90 percent of days and are left out of rankings: 1966, 1967, 1973, 1975, 1976, 1977. 1966: 177 of 365 days1967: 325 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 364 of 365 days1972: 366 of 366 days1973: 310 of 365 days1974: 339 of 365 days1975: 292 of 365 days1976: 323 of 366 days1977: 323 of 365 days1978: 355 of 365 days1979: 365 of 365 days1980: 350 of 366 days1981: 356 of 365 days1982: 365 of 365 days1983: 363 of 365 days197019751980
18 years of record at Coteau du Lac, 1966 to 1983. 6 years have data for under 90 percent of days and are left out of rankings: 1966, 1967, 1973, 1975, 1976, 1977.
Days with data per year at Coteau du Lac
YearDays with dataShare of yearComplete
196617748%No
196732589%No
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971364100%Yes
1972366100%Yes
197331085%No
197433993%Yes
197529280%No
197632388%No
197732388%No
197835597%Yes
1979365100%Yes
198035096%Yes
198135698%Yes
1982365100%Yes
198336399%Yes

Latest Records

0

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

Climate Trend

11 complete years, 1968 to 1983
Annual mean temperature at Coteau du Lac as warming stripes, 1968 to 1983 One stripe for each of 11 complete years at Coteau du Lac, 1968 to 1983. Blue stripes are years cooler than the station's own mean of 5.3 C (41.6 F); red stripes are warmer. The coolest year was 1978, at 4.6 C (40.4 F), and the warmest was 1981, at 6.2 C (43.1 F). The strongest colour marks a difference of 0.9 C (1.6 F). 1968: 5.2 C, -0.1 C from the station mean1969: 5.7 C, +0.4 C from the station mean1970: 5.0 C, -0.3 C from the station mean1971: 5.3 C, -0.1 C from the station mean1972: 4.7 C, -0.6 C from the station mean1978: 4.6 C, -0.7 C from the station mean1979: 6.0 C, +0.6 C from the station mean1980: 4.8 C, -0.5 C from the station mean1981: 6.2 C, +0.9 C from the station mean1982: 4.9 C, -0.4 C from the station mean1983: 6.1 C, +0.8 C from the station mean19681970197219741976197819801982
One stripe for each of 11 complete years at Coteau du Lac, 1968 to 1983. Blue stripes are years cooler than the station's own mean of 5.3 C (41.6 F); red stripes are warmer. The coolest year was 1978, at 4.6 C (40.4 F), and the warmest was 1981, at 6.2 C (43.1 F). The strongest colour marks a difference of 0.9 C (1.6 F).
Annual mean temperature at Coteau du Lac as warming stripes, 1968 to 1983
YearAnnual mean temperatureDifference from the station mean
19685.2 C-0.13 C
19695.7 C+0.38 C
19705.0 C-0.31 C
19715.3 C-0.06 C
19724.7 C-0.64 C
19784.6 C-0.67 C
19796.0 C+0.64 C
19804.8 C-0.53 C
19816.2 C+0.87 C
19824.9 C-0.39 C
19836.1 C+0.81 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

1966 to 1983
Yearly extremes at Coteau du Lac: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)35.0 C (95.0 F)197532.0 C (89.6 F)18
Coldest night (TNn)-37.2 C (-35.0 F)1972-31.8 C (-25.3 F)18
Wettest day (Rx1day)83.0 mm (3.3 in)198247.4 mm (1.9 in)18
Wettest five days (Rx5day)102.9 mm (4.1 in)197362.9 mm (2.5 in)18
Longest dry spell (CDD)30 days198016 days18

Hottest day (TXx)

Hottest day (TXx) at Coteau du Lac by year The hottest day of the year at Coteau du Lac, 1966 to 1983. The record is 35.0 C (95.0 F) in 1975, marked on the chart; the median year is 32.0 C (89.6 F). 2830323436197019751980Record: 35.0 C (95.0 F) in 1975
The hottest day of the year at Coteau du Lac, 1966 to 1983. The record is 35.0 C (95.0 F) in 1975, marked on the chart; the median year is 32.0 C (89.6 F).
Hottest day (TXx) at Coteau du Lac by year
YearHottest day (TXx)
196632.2 C (90.0 F)
196729.4 C (84.9 F)
196832.2 C (90.0 F)
196931.7 C (89.1 F)
197032.2 C (90.0 F)
197132.2 C (90.0 F)
197231.7 C (89.1 F)
197331.1 C (88.0 F)
197433.9 C (93.0 F)
197535.0 C (95.0 F)
197630.0 C (86.0 F)
197732.2 C (90.0 F)
197831.7 C (89.1 F)
197931.7 C (89.1 F)
198031.0 C (87.8 F)
198132.0 C (89.6 F)
198232.0 C (89.6 F)
198332.0 C (89.6 F)

Coldest night (TNn)

Coldest night (TNn) at Coteau du Lac by year The coldest night of the year at Coteau du Lac, 1966 to 1983. The record is -37.2 C (-35.0 F) in 1972, marked on the chart; the median year is -31.8 C (-25.3 F). -40-35-30-25-20197019751980Record: -37.2 C (-35.0 F) in 1972
The coldest night of the year at Coteau du Lac, 1966 to 1983. The record is -37.2 C (-35.0 F) in 1972, marked on the chart; the median year is -31.8 C (-25.3 F).
Coldest night (TNn) at Coteau du Lac by year
YearColdest night (TNn)
1966-21.1 C (-6.0 F)
1967-36.1 C (-33.0 F)
1968-31.7 C (-25.1 F)
1969-28.3 C (-18.9 F)
1970-31.7 C (-25.1 F)
1971-35.0 C (-31.0 F)
1972-37.2 C (-35.0 F)
1973-34.4 C (-29.9 F)
1974-31.1 C (-24.0 F)
1975-31.7 C (-25.1 F)
1976-34.4 C (-29.9 F)
1977-28.9 C (-20.0 F)
1978-31.7 C (-25.1 F)
1979-32.2 C (-26.0 F)
1980-33.0 C (-27.4 F)
1981-36.0 C (-32.8 F)
1982-32.0 C (-25.6 F)
1983-30.0 C (-22.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Coteau du Lac by year The wettest day of the year at Coteau du Lac, 1966 to 1983. The record is 83.0 mm (3.3 in) in 1982, marked on the chart; the median year is 47.4 mm (1.9 in). 20406080100197019751980Record: 83.0 mm (3.3 in) in 1982
The wettest day of the year at Coteau du Lac, 1966 to 1983. The record is 83.0 mm (3.3 in) in 1982, marked on the chart; the median year is 47.4 mm (1.9 in).
Wettest day (Rx1day) at Coteau du Lac by year
YearWettest day (Rx1day)
196626.9 mm (1.1 in)
196727.4 mm (1.1 in)
196844.2 mm (1.7 in)
196933.3 mm (1.3 in)
197025.4 mm (1.0 in)
197149.0 mm (1.9 in)
197253.3 mm (2.1 in)
197346.0 mm (1.8 in)
197456.1 mm (2.2 in)
197554.9 mm (2.2 in)
197649.5 mm (1.9 in)
197748.8 mm (1.9 in)
197833.0 mm (1.3 in)
197959.9 mm (2.4 in)
198044.3 mm (1.7 in)
198151.5 mm (2.0 in)
198283.0 mm (3.3 in)
198330.4 mm (1.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Coteau du Lac by year The wettest five days of the year at Coteau du Lac, 1966 to 1983. The record is 102.9 mm (4.1 in) in 1973, marked on the chart; the median year is 62.9 mm (2.5 in). 406080100120197019751980Record: 102.9 mm (4.1 in) in 1973
The wettest five days of the year at Coteau du Lac, 1966 to 1983. The record is 102.9 mm (4.1 in) in 1973, marked on the chart; the median year is 62.9 mm (2.5 in).
Wettest five days (Rx5day) at Coteau du Lac by year
YearWettest five days (Rx5day)
196655.6 mm (2.2 in)
196744.6 mm (1.8 in)
196870.7 mm (2.8 in)
196951.0 mm (2.0 in)
197050.1 mm (2.0 in)
197162.3 mm (2.5 in)
197282.0 mm (3.2 in)
1973102.9 mm (4.1 in)
197473.7 mm (2.9 in)
197576.5 mm (3.0 in)
197658.9 mm (2.3 in)
197761.9 mm (2.4 in)
197845.4 mm (1.8 in)
197971.1 mm (2.8 in)
198056.5 mm (2.2 in)
198163.4 mm (2.5 in)
198295.8 mm (3.8 in)
198369.3 mm (2.7 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Coteau du Lac by year The longest dry spell of the year at Coteau du Lac, 1966 to 1983. The record is 30 days in 1980, marked on the chart; the median year is 16 days. 1015202530197019751980Record: 30 days in 1980
The longest dry spell of the year at Coteau du Lac, 1966 to 1983. The record is 30 days in 1980, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Coteau du Lac by year
YearLongest dry spell (CDD)
196611 days
196717 days
196823 days
196911 days
197018 days
197112 days
197213 days
197316 days
197413 days
197518 days
197611 days
197726 days
197823 days
197918 days
198030 days
198111 days
198216 days
198311 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 Coteau du Lac standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Coteau du Lac 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-15).