St Mathieu Laprairie Weather Records (CA007027560)

Record envelope, standing records and threshold days for St Mathieu Laprairie (CA007027560), Quebec, Canada, with 35 years of record.

Key Facts for St Mathieu Laprairie

St Mathieu Laprairie (CA007027560) is a weather station in Quebec, Canada at 45.35 latitude and -73.53 longitude, 31 m (102 ft) above sea level.
The station reports from 1948 to 1982, 35 years of record.
1,464 records set at St Mathieu Laprairie still stand.
Records are tracked for prcp, snow: an element needs 30 years of data to be eligible.
St Mathieu Laprairie set a daily record snowfall of 12.5 cm (4.9 in) on 6 December 1981.

About the Station

Location: Quebec, Canada, 45.35 latitude, -73.53 longitude.
Elevation: 31 m (102 ft).
Period of record: 1948 to 1982, 35 years.
Eligible elements: prcp, snow.

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 St Mathieu Laprairie. 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 St Mathieu Laprairie, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	10.0 C (50.0 F)	-41.1 C (-42.0 F)	n/a	n/a
Feb	16.1 C (61.0 F)	-35.0 C (-31.0 F)	n/a	n/a
Mar	23.3 C (73.9 F)	-25.0 C (-13.0 F)	n/a	n/a
Apr	30.0 C (86.0 F)	-15.0 C (5.0 F)	n/a	n/a
May	32.8 C (91.0 F)	-4.4 C (24.1 F)	n/a	n/a
Jun	34.4 C (93.9 F)	1.7 C (35.1 F)	n/a	n/a
Jul	35.6 C (96.1 F)	5.6 C (42.1 F)	n/a	n/a
Aug	35.6 C (96.1 F)	1.1 C (34.0 F)	n/a	n/a
Sep	33.3 C (91.9 F)	-3.3 C (26.1 F)	n/a	n/a
Oct	27.8 C (82.0 F)	-7.8 C (18.0 F)	n/a	n/a
Nov	22.2 C (72.0 F)	-18.9 C (-2.0 F)	n/a	n/a
Dec	14.4 C (57.9 F)	-31.7 C (-25.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at St Mathieu Laprairie still stand. 1979 holds the most, with 78.

Standing records at St Mathieu Laprairie by the year they were set
Year set	Standing records
1953	49
1954	44
1955	57
1956	72
1957	62
1958	43
1959	74
1960	39
1961	40
1962	54
1963	54
1964	45
1965	60
1966	58
1967	45
1968	55
1969	20
1970	47
1971	38
1972	44
1973	55
1974	40
1975	29
1976	59
1977	46
1978	34
1979	78
1980	42
1981	68
1982	13

Wettest Day of Each Month

Aug: 74.7 mm (2.9 in)

The wettest day on record for each calendar month at St Mathieu Laprairie. The most was 74.7 mm (2.9 in) on 31 August 1954.

Record daily precipitation for each month at St Mathieu Laprairie
Month	Record daily precipitation (mm)	Date
Jan	43.2 mm (1.7 in)	23 January 1966
Feb	37.1 mm (1.5 in)	7 February 1965
Mar	35.8 mm (1.4 in)	31 March 1976
Apr	38.1 mm (1.5 in)	24 April 1968
May	32.8 mm (1.3 in)	25 May 1979
Jun	59.7 mm (2.4 in)	22 June 1981
Jul	50.3 mm (2.0 in)	6 July 1953
Aug	74.7 mm (2.9 in)	31 August 1954
Sep	48.3 mm (1.9 in)	2 September 1957
Oct	56.6 mm (2.2 in)	22 October 1970
Nov	49.5 mm (1.9 in)	21 November 1954
Dec	66.0 mm (2.6 in)	5 December 1952

Period of Record Coverage

1953 to 1982

30 years of record at St Mathieu Laprairie, 1953 to 1982. 6 years have data for under 90 percent of days and are left out of rankings: 1953, 1963, 1964, 1969, 1977, 1982.

Days with data per year at St Mathieu Laprairie
Year	Days with data	Share of year	Complete
1953	245	67%	No
1954	365	100%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	333	91%	Yes
1959	365	100%	Yes
1960	366	100%	Yes
1961	364	100%	Yes
1962	361	99%	Yes
1963	319	87%	No
1964	274	75%	No
1965	361	99%	Yes
1966	360	99%	Yes
1967	337	92%	Yes
1968	350	96%	Yes
1969	204	56%	No
1970	339	93%	Yes
1971	365	100%	Yes
1972	360	98%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	342	94%	Yes
1976	365	100%	Yes
1977	318	87%	No
1978	357	98%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	358	98%	Yes
1982	79	22%	No

Latest Records

Latest records at St Mathieu Laprairie
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
6 December 1981	St Mathieu Laprairie, CA	daily snowfall	12.5 cm (4.9 in)	1.1 cm (0.4 in)	4 years	5 of 100 (Routine)
20 November 1981	St Mathieu Laprairie, CA	daily snowfall	11.4 cm (4.5 in)	6.3 cm (2.5 in)	20 years	20 of 100 (Routine)
6 November 1981	St Mathieu Laprairie, CA	daily snowfall	4.1 cm (1.6 in)	2.8 cm (1.1 in)	10 years	11 of 100 (Routine)
27 October 1981	St Mathieu Laprairie, CA	daily rain	35.6 mm (1.4 in)	24.2 mm (1.0 in)	19 years	40 of 100 (Notable)
21 October 1981	St Mathieu Laprairie, CA	daily rain	9.2 mm (0.36 in)	1.1 mm (0.04 in)	14 years	8 of 100 (Routine)
10 September 1981	St Mathieu Laprairie, CA	daily rain	16.6 mm (0.7 in)	4.2 mm (0.17 in)	4 years	8 of 100 (Routine)
8 September 1981	St Mathieu Laprairie, CA	daily rain	16.2 mm (0.6 in)	4.8 mm (0.19 in)	16 years	13 of 100 (Routine)
16 August 1981	St Mathieu Laprairie, CA	daily rain	64.6 mm (2.5 in)	36.7 mm (1.4 in)	15 years	40 of 100 (Notable)
22 June 1981	St Mathieu Laprairie, CA	monthly rain	59.7 mm (2.4 in)	5.3 mm (0.21 in)	23 years	26 of 100 (Routine)
11 May 1981	St Mathieu Laprairie, CA	daily rain	23.4 mm (0.9 in)	5.1 mm (0.20 in)	27 years	19 of 100 (Routine)
17 April 1981	St Mathieu Laprairie, CA	daily rain	11.9 mm (0.5 in)	0.2 mm (0.01 in)	14 years	7 of 100 (Routine)
24 February 1981	St Mathieu Laprairie, CA	daily rain	25.2 mm (1.0 in)	10.5 mm (0.4 in)	6 years	20 of 100 (Routine)
8 December 1980	St Mathieu Laprairie, CA	daily rain	17.5 mm (0.7 in)	3.5 mm (0.14 in)	30 years	16 of 100 (Routine)
2 December 1980	St Mathieu Laprairie, CA	daily rain	22.6 mm (0.9 in)	11.2 mm (0.4 in)	6 years	19 of 100 (Routine)
24 November 1980	St Mathieu Laprairie, CA	daily rain	16.5 mm (0.6 in)	0.8 mm (0.03 in)	7 years	6 of 100 (Routine)
13 September 1980	St Mathieu Laprairie, CA	daily rain	30.5 mm (1.2 in)	5.1 mm (0.20 in)	3 years	8 of 100 (Routine)
9 September 1980	St Mathieu Laprairie, CA	daily rain	20.9 mm (0.8 in)	5.9 mm (0.23 in)	32 years	18 of 100 (Routine)
14 August 1980	St Mathieu Laprairie, CA	daily rain	27.4 mm (1.1 in)	17.0 mm (0.7 in)	7 years	20 of 100 (Routine)
11 August 1980	St Mathieu Laprairie, CA	daily rain	27.2 mm (1.1 in)	9.9 mm (0.39 in)	16 years	15 of 100 (Routine)
21 July 1980	St Mathieu Laprairie, CA	daily rain	46.7 mm (1.8 in)	28.2 mm (1.1 in)	16 years	37 of 100 (Notable)

Climate Trend

18 complete years, 1954 to 1981

One stripe for each of 18 complete years at St Mathieu Laprairie, 1954 to 1981. Blue stripes are years cooler than the station's own mean of 6.1 C (42.9 F); red stripes are warmer. The coolest year was 1972, at 5.1 C (41.1 F), and the warmest was 1973, at 7.1 C (44.9 F). The strongest colour marks a difference of 1.1 C (2.0 F).

Annual mean temperature at St Mathieu Laprairie as warming stripes, 1954 to 1981
Year	Annual mean temperature	Difference from the station mean
1954	5.8 C	-0.30 C
1955	6.3 C	+0.25 C
1956	5.3 C	-0.77 C
1957	6.3 C	+0.25 C
1959	6.4 C	+0.38 C
1960	6.6 C	+0.53 C
1961	6.2 C	+0.15 C
1962	5.4 C	-0.62 C
1965	5.9 C	-0.19 C
1966	6.4 C	+0.35 C
1971	5.7 C	-0.34 C
1972	5.1 C	-0.98 C
1973	7.1 C	+1.08 C
1974	5.7 C	-0.33 C
1978	5.3 C	-0.79 C
1979	6.8 C	+0.74 C
1980	5.6 C	-0.47 C
1981	7.1 C	+1.01 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

1948 to 1982

Yearly extremes at St Mathieu Laprairie: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	35.6 C (96.1 F)	1953	32.8 C (91.0 F)	30
Coldest night (TNn)	-41.1 C (-42.0 F)	1957	-30.8 C (-23.5 F)	30
Wettest day (Rx1day)	74.7 mm (2.9 in)	1954	45.2 mm (1.8 in)	35
Wettest five days (Rx5day)	106.5 mm (4.2 in)	1978	63.6 mm (2.5 in)	35
Longest dry spell (CDD)	35 days	1957	15 days	35

Hottest day (TXx)

The hottest day of the year at St Mathieu Laprairie, 1948 to 1982. The record is 35.6 C (96.1 F) in 1953, marked on the chart; the median year is 32.8 C (91.0 F).

Hottest day (TXx) at St Mathieu Laprairie by year
Year	Hottest day (TXx)
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	35.6 C (96.1 F)
1954	30.0 C (86.0 F)
1955	35.6 C (96.1 F)
1956	32.8 C (91.0 F)
1957	33.3 C (91.9 F)
1958	31.1 C (88.0 F)
1959	34.4 C (93.9 F)
1960	33.9 C (93.0 F)
1961	31.7 C (89.1 F)
1962	32.8 C (91.0 F)
1963	34.4 C (93.9 F)
1964	35.6 C (96.1 F)
1965	34.4 C (93.9 F)
1966	33.9 C (93.0 F)
1967	32.2 C (90.0 F)
1968	33.3 C (91.9 F)
1969	32.8 C (91.0 F)
1970	33.9 C (93.0 F)
1971	33.9 C (93.0 F)
1972	31.7 C (89.1 F)
1973	32.2 C (90.0 F)
1974	31.7 C (89.1 F)
1975	35.6 C (96.1 F)
1976	32.2 C (90.0 F)
1977	34.4 C (93.9 F)
1978	32.2 C (90.0 F)
1979	32.8 C (91.0 F)
1980	32.2 C (90.0 F)
1981	32.2 C (90.0 F)
1982	7.0 C (44.6 F)

Coldest night (TNn)

The coldest night of the year at St Mathieu Laprairie, 1948 to 1982. The record is -41.1 C (-42.0 F) in 1957, marked on the chart; the median year is -30.8 C (-23.5 F).

Coldest night (TNn) at St Mathieu Laprairie by year
Year	Coldest night (TNn)
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	-21.1 C (-6.0 F)
1954	-32.8 C (-27.0 F)
1955	-30.6 C (-23.1 F)
1956	-27.8 C (-18.0 F)
1957	-41.1 C (-42.0 F)
1958	-29.4 C (-20.9 F)
1959	-32.8 C (-27.0 F)
1960	-30.6 C (-23.1 F)
1961	-30.6 C (-23.1 F)
1962	-35.0 C (-31.0 F)
1963	-33.9 C (-29.0 F)
1964	-18.3 C (-0.9 F)
1965	-28.9 C (-20.0 F)
1966	-30.6 C (-23.1 F)
1967	-28.9 C (-20.0 F)
1968	-30.6 C (-23.1 F)
1969	-26.7 C (-16.1 F)
1970	-31.1 C (-24.0 F)
1971	-33.3 C (-27.9 F)
1972	-33.3 C (-27.9 F)
1973	-31.7 C (-25.1 F)
1974	-32.2 C (-26.0 F)
1975	-30.0 C (-22.0 F)
1976	-35.0 C (-31.0 F)
1977	-32.2 C (-26.0 F)
1978	-28.9 C (-20.0 F)
1979	-30.0 C (-22.0 F)
1980	-31.7 C (-25.1 F)
1981	-35.0 C (-31.0 F)
1982	-31.5 C (-24.7 F)

Wettest day (Rx1day)

The wettest day of the year at St Mathieu Laprairie, 1948 to 1982. The record is 74.7 mm (2.9 in) in 1954, marked on the chart; the median year is 45.2 mm (1.8 in).

Wettest day (Rx1day) at St Mathieu Laprairie by year
Year	Wettest day (Rx1day)
1948	32.5 mm (1.3 in)
1949	50.0 mm (2.0 in)
1950	48.8 mm (1.9 in)
1951	33.0 mm (1.3 in)
1952	66.0 mm (2.6 in)
1953	50.3 mm (2.0 in)
1954	74.7 mm (2.9 in)
1955	53.8 mm (2.1 in)
1956	46.7 mm (1.8 in)
1957	54.4 mm (2.1 in)
1958	46.2 mm (1.8 in)
1959	50.0 mm (2.0 in)
1960	37.1 mm (1.5 in)
1961	58.4 mm (2.3 in)
1962	30.5 mm (1.2 in)
1963	40.9 mm (1.6 in)
1964	31.5 mm (1.2 in)
1965	37.1 mm (1.5 in)
1966	43.2 mm (1.7 in)
1967	27.7 mm (1.1 in)
1968	38.1 mm (1.5 in)
1969	51.3 mm (2.0 in)
1970	56.6 mm (2.2 in)
1971	41.1 mm (1.6 in)
1972	68.6 mm (2.7 in)
1973	45.2 mm (1.8 in)
1974	40.6 mm (1.6 in)
1975	32.3 mm (1.3 in)
1976	40.6 mm (1.6 in)
1977	36.1 mm (1.4 in)
1978	42.2 mm (1.7 in)
1979	48.0 mm (1.9 in)
1980	46.7 mm (1.8 in)
1981	64.6 mm (2.5 in)
1982	14.2 mm (0.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at St Mathieu Laprairie, 1948 to 1982. The record is 106.5 mm (4.2 in) in 1978, marked on the chart; the median year is 63.6 mm (2.5 in).

Wettest five days (Rx5day) at St Mathieu Laprairie by year
Year	Wettest five days (Rx5day)
1948	54.9 mm (2.2 in)
1949	102.1 mm (4.0 in)
1950	56.4 mm (2.2 in)
1951	57.6 mm (2.3 in)
1952	73.9 mm (2.9 in)
1953	58.7 mm (2.3 in)
1954	90.4 mm (3.6 in)
1955	71.3 mm (2.8 in)
1956	59.6 mm (2.3 in)
1957	71.3 mm (2.8 in)
1958	77.2 mm (3.0 in)
1959	62.2 mm (2.4 in)
1960	67.0 mm (2.6 in)
1961	62.7 mm (2.5 in)
1962	61.0 mm (2.4 in)
1963	51.1 mm (2.0 in)
1964	49.8 mm (2.0 in)
1965	65.8 mm (2.6 in)
1966	57.2 mm (2.3 in)
1967	45.9 mm (1.8 in)
1968	48.3 mm (1.9 in)
1969	72.4 mm (2.9 in)
1970	61.4 mm (2.4 in)
1971	63.6 mm (2.5 in)
1972	92.7 mm (3.6 in)
1973	87.7 mm (3.5 in)
1974	74.9 mm (2.9 in)
1975	73.1 mm (2.9 in)
1976	55.8 mm (2.2 in)
1977	63.5 mm (2.5 in)
1978	106.5 mm (4.2 in)
1979	77.8 mm (3.1 in)
1980	76.4 mm (3.0 in)
1981	84.5 mm (3.3 in)
1982	26.4 mm (1.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at St Mathieu Laprairie, 1948 to 1982. The record is 35 days in 1957, marked on the chart; the median year is 15 days.

Longest dry spell (CDD) at St Mathieu Laprairie by year
Year	Longest dry spell (CDD)
1948	16 days
1949	11 days
1950	13 days
1951	14 days
1952	12 days
1953	15 days
1954	10 days
1955	17 days
1956	15 days
1957	35 days
1958	8 days
1959	17 days
1960	15 days
1961	35 days
1962	11 days
1963	19 days
1964	16 days
1965	18 days
1966	16 days
1967	17 days
1968	18 days
1969	13 days
1970	18 days
1971	13 days
1972	13 days
1973	10 days
1974	12 days
1975	20 days
1976	10 days
1977	15 days
1978	17 days
1979	19 days
1980	23 days
1981	10 days
1982	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.

Rainfall Return Levels

30 years, 1949 to 1981

A day with at least 45.5 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 81.3 mm (3.2 in) of rain is expected about once in 100 years.

Rainfall return levels at St Mathieu Laprairie: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	45.5 mm (1.8 in)
5 years	56.1 mm (2.2 in)
10 years	62.8 mm (2.5 in)
25 years	70.6 mm (2.8 in)
50 years	76.1 mm (3.0 in)	Longer than the 30 years of record
100 years	81.3 mm (3.2 in)	Longer than the 30 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 30 years of values from 1949 to 1981.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 74.7 mm (2.9 in) in 1954; 68.6 mm (2.7 in) in 1972; 66.0 mm (2.6 in) in 1952.

Download the Data

Data for St Mathieu Laprairie standing records by year: CSV or JSON. Field meanings are on the data page.
Data for St Mathieu Laprairie 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). Records are computed by this site and are not official.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).