Lac Ste Croix Weather Records (CA007063690)

Record envelope, standing records and threshold days for Lac Ste Croix (CA007063690), Quebec, Canada, with 60 years of record.

Key Facts for Lac Ste Croix

Lac Ste Croix (CA007063690) is a weather station in Quebec, Canada at 48.42 latitude and -71.75 longitude, 152 m (499 ft) above sea level.
The station reports from 1958 to 2017, 60 years of record.
1,464 records set at Lac Ste Croix 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, 48.42 latitude, -71.75 longitude.
Elevation: 152 m (499 ft).
Period of record: 1958 to 2017, 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 Lac Ste Croix. 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 Lac Ste Croix, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	8.3 C (46.9 F)	-40.0 C (-40.0 F)	n/a	n/a
Feb	10.5 C (50.9 F)	-40.0 C (-40.0 F)	n/a	n/a
Mar	15.6 C (60.1 F)	-32.0 C (-25.6 F)	n/a	n/a
Apr	22.2 C (72.0 F)	-23.3 C (-9.9 F)	n/a	n/a
May	33.3 C (91.9 F)	-12.2 C (10.0 F)	n/a	n/a
Jun	32.2 C (90.0 F)	-2.2 C (28.0 F)	n/a	n/a
Jul	33.0 C (91.4 F)	1.1 C (34.0 F)	n/a	n/a
Aug	36.1 C (97.0 F)	0.0 C (32.0 F)	n/a	n/a
Sep	30.5 C (86.9 F)	-5.6 C (21.9 F)	n/a	n/a
Oct	26.1 C (79.0 F)	-12.8 C (9.0 F)	n/a	n/a
Nov	18.9 C (66.0 F)	-26.1 C (-15.0 F)	n/a	n/a
Dec	12.0 C (53.6 F)	-38.5 C (-37.3 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Lac Ste Croix still stand. 1982 holds the most, with 76.

Standing records at Lac Ste Croix by the year they were set
Year set	Standing records
1958	15
1959	60
1960	39
1961	48
1962	61
1963	66
1964	60
1965	46
1966	57
1967	54
1968	62
1969	69
1970	50
1971	56
1972	63
1973	44
1974	63
1975	48
1976	63
1977	60
1978	50
1979	68
1980	55
1981	71
1982	76
1983	60

Wettest Day of Each Month

Jun: 108.7 mm (4.3 in)

The wettest day on record for each calendar month at Lac Ste Croix. The most was 108.7 mm (4.3 in) on 22 June 1981.

Record daily precipitation for each month at Lac Ste Croix
Month	Record daily precipitation (mm)	Date
Jan	22.9 mm (0.9 in)	30 January 1966
Feb	30.0 mm (1.2 in)	8 February 1965
Mar	29.2 mm (1.1 in)	22 March 1972
Apr	25.9 mm (1.0 in)	21 April 1973
May	37.2 mm (1.5 in)	11 May 1981
Jun	108.7 mm (4.3 in)	22 June 1981
Jul	52.1 mm (2.1 in)	17 July 1975
Aug	78.5 mm (3.1 in)	23 August 1971
Sep	53.1 mm (2.1 in)	4 September 1970
Oct	43.7 mm (1.7 in)	9 October 1958
Nov	36.6 mm (1.4 in)	4 November 1982
Dec	32.0 mm (1.3 in)	6 December 1983

Period of Record Coverage

1958 to 1983

26 years of record at Lac Ste Croix, 1958 to 1983. 1 years have data for under 90 percent of days and are left out of rankings: 1958.

Days with data per year at Lac Ste Croix
Year	Days with data	Share of year	Complete
1958	180	49%	No
1959	363	99%	Yes
1960	363	99%	Yes
1961	363	99%	Yes
1962	361	99%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
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	366	100%	Yes
1973	350	96%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	363	99%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes

Latest Records

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

Climate Trend

24 complete years, 1959 to 1983

One stripe for each of 24 complete years at Lac Ste Croix, 1959 to 1983. Blue stripes are years cooler than the station's own mean of 2.0 C (35.5 F); red stripes are warmer. The coolest year was 1972, at 0.7 C (33.3 F), and the warmest was 1981, at 3.4 C (38.1 F). The strongest colour marks a difference of 1.5 C (2.7 F).

Annual mean temperature at Lac Ste Croix as warming stripes, 1959 to 1983
Year	Annual mean temperature	Difference from the station mean
1959	1.6 C	-0.36 C
1960	2.6 C	+0.64 C
1961	2.3 C	+0.31 C
1962	1.2 C	-0.76 C
1963	1.6 C	-0.39 C
1964	2.2 C	+0.23 C
1965	1.3 C	-0.62 C
1966	3.0 C	+1.08 C
1967	1.8 C	-0.16 C
1968	2.3 C	+0.32 C
1969	2.7 C	+0.72 C
1970	1.7 C	-0.25 C
1971	1.8 C	-0.15 C
1972	0.7 C	-1.25 C
1974	0.9 C	-1.06 C
1975	2.4 C	+0.41 C
1976	1.4 C	-0.53 C
1977	2.6 C	+0.63 C
1978	1.2 C	-0.71 C
1979	2.8 C	+0.88 C
1980	1.3 C	-0.66 C
1981	3.4 C	+1.45 C
1982	1.5 C	-0.49 C
1983	2.8 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

1958 to 1983

Yearly extremes at Lac Ste Croix: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	36.1 C (97.0 F)	1975	31.1 C (88.0 F)	26
Coldest night (TNn)	-40.0 C (-40.0 F)	1973	-37.2 C (-35.0 F)	26
Wettest day (Rx1day)	108.7 mm (4.3 in)	1981	39.8 mm (1.6 in)	26
Wettest five days (Rx5day)	131.5 mm (5.2 in)	1981	66.2 mm (2.6 in)	26
Longest dry spell (CDD)	26 days	1967	16 days	26

Hottest day (TXx)

The hottest day of the year at Lac Ste Croix, 1958 to 1983. The record is 36.1 C (97.0 F) in 1975, marked on the chart; the median year is 31.1 C (88.0 F).

Hottest day (TXx) at Lac Ste Croix by year
Year	Hottest day (TXx)
1958	27.8 C (82.0 F)
1959	31.1 C (88.0 F)
1960	31.7 C (89.1 F)
1961	31.1 C (88.0 F)
1962	31.1 C (88.0 F)
1963	31.7 C (89.1 F)
1964	30.6 C (87.1 F)
1965	31.1 C (88.0 F)
1966	30.6 C (87.1 F)
1967	31.7 C (89.1 F)
1968	32.2 C (90.0 F)
1969	32.2 C (90.0 F)
1970	31.1 C (88.0 F)
1971	30.6 C (87.1 F)
1972	30.6 C (87.1 F)
1973	30.0 C (86.0 F)
1974	31.1 C (88.0 F)
1975	36.1 C (97.0 F)
1976	33.3 C (91.9 F)
1977	32.2 C (90.0 F)
1978	33.3 C (91.9 F)
1979	30.6 C (87.1 F)
1980	30.0 C (86.0 F)
1981	30.0 C (86.0 F)
1982	31.5 C (88.7 F)
1983	33.0 C (91.4 F)

Coldest night (TNn)

The coldest night of the year at Lac Ste Croix, 1958 to 1983. The record is -40.0 C (-40.0 F) in 1973, marked on the chart; the median year is -37.2 C (-35.0 F).

Coldest night (TNn) at Lac Ste Croix by year
Year	Coldest night (TNn)
1958	-33.3 C (-27.9 F)
1959	-35.6 C (-32.1 F)
1960	-36.1 C (-33.0 F)
1961	-37.2 C (-35.0 F)
1962	-38.3 C (-36.9 F)
1963	-39.4 C (-38.9 F)
1964	-31.7 C (-25.1 F)
1965	-34.4 C (-29.9 F)
1966	-36.1 C (-33.0 F)
1967	-39.4 C (-38.9 F)
1968	-34.4 C (-29.9 F)
1969	-27.2 C (-17.0 F)
1970	-38.9 C (-38.0 F)
1971	-38.9 C (-38.0 F)
1972	-36.7 C (-34.1 F)
1973	-40.0 C (-40.0 F)
1974	-38.9 C (-38.0 F)
1975	-37.2 C (-35.0 F)
1976	-37.8 C (-36.0 F)
1977	-40.0 C (-40.0 F)
1978	-32.8 C (-27.0 F)
1979	-39.4 C (-38.9 F)
1980	-37.0 C (-34.6 F)
1981	-35.0 C (-31.0 F)
1982	-38.0 C (-36.4 F)
1983	-38.5 C (-37.3 F)

Wettest day (Rx1day)

The wettest day of the year at Lac Ste Croix, 1958 to 1983. The record is 108.7 mm (4.3 in) in 1981, marked on the chart; the median year is 39.8 mm (1.6 in).

Wettest day (Rx1day) at Lac Ste Croix by year
Year	Wettest day (Rx1day)
1958	43.7 mm (1.7 in)
1959	42.4 mm (1.7 in)
1960	36.8 mm (1.4 in)
1961	29.2 mm (1.1 in)
1962	26.4 mm (1.0 in)
1963	35.6 mm (1.4 in)
1964	31.8 mm (1.3 in)
1965	30.0 mm (1.2 in)
1966	52.3 mm (2.1 in)
1967	33.3 mm (1.3 in)
1968	35.3 mm (1.4 in)
1969	40.4 mm (1.6 in)
1970	53.1 mm (2.1 in)
1971	78.5 mm (3.1 in)
1972	60.2 mm (2.4 in)
1973	34.0 mm (1.3 in)
1974	43.7 mm (1.7 in)
1975	52.1 mm (2.1 in)
1976	39.6 mm (1.6 in)
1977	29.0 mm (1.1 in)
1978	40.4 mm (1.6 in)
1979	26.9 mm (1.1 in)
1980	48.0 mm (1.9 in)
1981	108.7 mm (4.3 in)
1982	36.6 mm (1.4 in)
1983	40.0 mm (1.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Lac Ste Croix, 1958 to 1983. The record is 131.5 mm (5.2 in) in 1981, marked on the chart; the median year is 66.2 mm (2.6 in).

Wettest five days (Rx5day) at Lac Ste Croix by year
Year	Wettest five days (Rx5day)
1958	79.2 mm (3.1 in)
1959	62.7 mm (2.5 in)
1960	59.4 mm (2.3 in)
1961	61.7 mm (2.4 in)
1962	50.6 mm (2.0 in)
1963	58.9 mm (2.3 in)
1964	58.0 mm (2.3 in)
1965	53.6 mm (2.1 in)
1966	97.2 mm (3.8 in)
1967	78.2 mm (3.1 in)
1968	64.5 mm (2.5 in)
1969	57.7 mm (2.3 in)
1970	79.7 mm (3.1 in)
1971	95.1 mm (3.7 in)
1972	67.8 mm (2.7 in)
1973	78.7 mm (3.1 in)
1974	82.4 mm (3.2 in)
1975	74.8 mm (2.9 in)
1976	63.2 mm (2.5 in)
1977	55.2 mm (2.2 in)
1978	54.6 mm (2.1 in)
1979	57.1 mm (2.2 in)
1980	71.2 mm (2.8 in)
1981	131.5 mm (5.2 in)
1982	78.2 mm (3.1 in)
1983	81.6 mm (3.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Lac Ste Croix, 1958 to 1983. The record is 26 days in 1967, marked on the chart; the median year is 16 days.

Longest dry spell (CDD) at Lac Ste Croix by year
Year	Longest dry spell (CDD)
1958	22 days
1959	17 days
1960	18 days
1961	19 days
1962	16 days
1963	16 days
1964	18 days
1965	19 days
1966	16 days
1967	26 days
1968	19 days
1969	18 days
1970	12 days
1971	13 days
1972	19 days
1973	11 days
1974	12 days
1975	12 days
1976	15 days
1977	14 days
1978	13 days
1979	15 days
1980	12 days
1981	12 days
1982	16 days
1983	11 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.

Frost Dates and Growing Season

24 years with a frost

Across 24 years with a frost, the median last spring frost at Lac Ste Croix falls on 25 May and the median first autumn frost on 20 September, which leaves a median of 115 days between them.

Frost dates and growing season at Lac Ste Croix
Measure	Median, all years	Earliest period	Recent period (1959 to 1983)	Recent against earliest	Fitted trend
Last spring frost	25 May	n/a	25 May	n/a	n/a
First autumn frost	20 September	n/a	20 September	n/a	n/a
Growing days	115 days	n/a	115 days	n/a	n/a

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Download the Data

Data for Lac Ste Croix standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Lac Ste Croix 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).