St Laurent (College) Weather Records (CA007027440)

Record envelope, standing records and threshold days for St Laurent (College) (CA007027440), Quebec, Canada, with 37 years of record.

Key Facts for St Laurent (College)

St Laurent (College) (CA007027440) is a weather station in Quebec, Canada at 45.52 latitude and -73.67 longitude, 38 m (125 ft) above sea level.
The station reports from 1931 to 1967, 37 years of record.
1,464 records set at St Laurent (College) still stand.
Records are tracked for prcp, snow: an element needs 30 years of data to be eligible.
St Laurent (College) tied a daily record snowfall of 10.2 cm (4.0 in) on 27 February 1967.

About the Station

Location: Quebec, Canada, 45.52 latitude, -73.67 longitude.
Elevation: 38 m (125 ft).
Period of record: 1931 to 1967, 37 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 Laurent (College). 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 Laurent (College), with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	16.7 C (62.1 F)	-35.0 C (-31.0 F)	n/a	n/a
Feb	16.1 C (61.0 F)	-36.1 C (-33.0 F)	n/a	n/a
Mar	25.6 C (78.1 F)	-33.3 C (-27.9 F)	n/a	n/a
Apr	29.4 C (84.9 F)	-13.9 C (7.0 F)	n/a	n/a
May	33.3 C (91.9 F)	-4.4 C (24.1 F)	n/a	n/a
Jun	35.0 C (95.0 F)	-3.3 C (26.1 F)	n/a	n/a
Jul	36.1 C (97.0 F)	4.4 C (39.9 F)	n/a	n/a
Aug	36.1 C (97.0 F)	3.3 C (37.9 F)	n/a	n/a
Sep	32.8 C (91.0 F)	-2.2 C (28.0 F)	n/a	n/a
Oct	28.9 C (84.0 F)	-8.3 C (17.1 F)	n/a	n/a
Nov	23.9 C (75.0 F)	-21.7 C (-7.1 F)	n/a	n/a
Dec	15.6 C (60.1 F)	-35.6 C (-32.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at St Laurent (College) still stand. 1933 holds the most, with 69.

Standing records at St Laurent (College) by the year they were set
Year set	Standing records
1931	38
1932	43
1933	69
1934	68
1935	58
1936	62
1937	44
1938	63
1939	51
1940	53
1941	45
1942	48
1943	67
1944	49
1945	57
1946	67
1947	59
1948	46
1949	58
1950	51
1951	48
1952	11
1959	4
1960	29
1961	29
1962	38
1963	36
1964	60
1965	47
1966	45
1967	21

Wettest Day of Each Month

Jul: 89.4 mm (3.5 in)

The wettest day on record for each calendar month at St Laurent (College). The most was 89.4 mm (3.5 in) on 5 July 1958.

Record daily precipitation for each month at St Laurent (College)
Month	Record daily precipitation (mm)	Date
Jan	39.4 mm (1.6 in)	20 January 1964
Feb	53.3 mm (2.1 in)	18 February 1954
Mar	40.6 mm (1.6 in)	27 March 1955
Apr	47.0 mm (1.9 in)	12 April 1934
May	38.6 mm (1.5 in)	28 May 1939
Jun	65.5 mm (2.6 in)	21 June 1961
Jul	89.4 mm (3.5 in)	5 July 1958
Aug	73.7 mm (2.9 in)	17 August 1938
Sep	61.7 mm (2.4 in)	12 September 1963
Oct	61.5 mm (2.4 in)	6 October 1932
Nov	51.6 mm (2.0 in)	4 November 1950
Dec	43.4 mm (1.7 in)	26 December 1957

Period of Record Coverage

1931 to 1967

31 years of record at St Laurent (College), 1931 to 1967. 8 years have data for under 90 percent of days and are left out of rankings: 1931, 1932, 1945, 1952, 1959, 1960, 1961, 1967.

Days with data per year at St Laurent (College)
Year	Days with data	Share of year	Complete
1931	213	58%	No
1932	328	90%	No
1933	364	100%	Yes
1934	354	97%	Yes
1935	365	100%	Yes
1936	335	92%	Yes
1937	361	99%	Yes
1938	365	100%	Yes
1939	365	100%	Yes
1940	365	100%	Yes
1941	363	99%	Yes
1942	365	100%	Yes
1943	365	100%	Yes
1944	360	98%	Yes
1945	289	79%	No
1946	364	100%	Yes
1947	364	100%	Yes
1948	357	98%	Yes
1949	364	100%	Yes
1950	363	99%	Yes
1951	365	100%	Yes
1952	272	74%	No
1959	52	14%	No
1960	325	89%	No
1961	301	82%	No
1962	362	99%	Yes
1963	357	98%	Yes
1964	366	100%	Yes
1965	362	99%	Yes
1966	361	99%	Yes
1967	149	41%	No

Latest Records

Latest records at St Laurent (College)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 February 1967	St Laurent (College), CA	daily snowfall (Tie)	10.2 cm (4.0 in)	tie	20 years	2 of 100 (Routine)
20 February 1967	St Laurent (College), CA	daily snowfall	10.2 cm (4.0 in)	2.6 cm (1.0 in)	20 years	13 of 100 (Routine)
20 February 1967	St Laurent (College), CA	daily rain	10.2 mm (0.4 in)	2.6 mm (0.10 in)	20 years	12 of 100 (Routine)
2 February 1967	St Laurent (College), CA	daily rain (Tie)	10.2 mm (0.4 in)	tie	11 years	1 of 100 (Routine)
2 February 1967	St Laurent (College), CA	daily snowfall (Tie)	10.2 cm (4.0 in)	tie	11 years	1 of 100 (Routine)
27 January 1967	St Laurent (College), CA	daily snowfall	20.3 cm (8.0 in)	3.8 cm (1.5 in)	4 years	11 of 100 (Routine)
27 January 1967	St Laurent (College), CA	daily rain	20.3 mm (0.8 in)	3.8 mm (0.15 in)	4 years	9 of 100 (Routine)
28 December 1966	St Laurent (College), CA	daily snowfall	13.7 cm (5.4 in)	8.6 cm (3.4 in)	15 years	22 of 100 (Routine)
24 December 1966	St Laurent (College), CA	daily snowfall	20.3 cm (8.0 in)	10.1 cm (4.0 in)	28 years	29 of 100 (Routine)
24 December 1966	St Laurent (College), CA	daily rain	20.3 mm (0.8 in)	10.1 mm (0.4 in)	28 years	20 of 100 (Routine)
6 December 1966	St Laurent (College), CA	daily rain	20.8 mm (0.8 in)	0.5 mm (0.02 in)	28 years	11 of 100 (Routine)
16 November 1966	St Laurent (College), CA	daily snowfall	5.1 cm (2.0 in)	0.5 cm (0.2 in)	25 years	10 of 100 (Routine)
19 October 1966	St Laurent (College), CA	daily rain	18.8 mm (0.7 in)	8.4 mm (0.33 in)	19 years	18 of 100 (Routine)
22 September 1966	St Laurent (College), CA	daily rain	15.0 mm (0.6 in)	1.3 mm (0.05 in)	8 years	6 of 100 (Routine)
16 August 1966	St Laurent (College), CA	daily rain	43.7 mm (1.7 in)	21.6 mm (0.9 in)	23 years	28 of 100 (Routine)
2 August 1966	St Laurent (College), CA	daily rain	22.1 mm (0.9 in)	11.2 mm (0.4 in)	24 years	20 of 100 (Routine)
5 May 1966	St Laurent (College), CA	monthly snowfall	2.5 cm (1.0 in)	2.5 cm (1.0 in)	34 years	20 of 100 (Routine)
5 May 1966	St Laurent (College), CA	daily rain (Tie)	2.5 mm (0.10 in)	tie	20 years	2 of 100 (Routine)
5 March 1966	St Laurent (College), CA	daily rain	17.3 mm (0.7 in)	10.2 mm (0.4 in)	32 years	20 of 100 (Routine)
28 February 1966	St Laurent (College), CA	daily rain	34.3 mm (1.4 in)	14.0 mm (0.6 in)	8 years	26 of 100 (Routine)

Climate Trend

21 complete years, 1933 to 1966

One stripe for each of 21 complete years at St Laurent (College), 1933 to 1966. Blue stripes are years cooler than the station's own mean of 6.1 C (43.0 F); red stripes are warmer. The coolest year was 1943, at 5.0 C (41.0 F), and the warmest was 1964, at 7.4 C (45.2 F). The strongest colour marks a difference of 1.3 C (2.3 F).

Annual mean temperature at St Laurent (College) as warming stripes, 1933 to 1966
Year	Annual mean temperature	Difference from the station mean
1933	5.7 C	-0.49 C
1934	5.1 C	-1.05 C
1935	5.2 C	-0.97 C
1937	6.8 C	+0.70 C
1938	6.4 C	+0.28 C
1939	5.4 C	-0.71 C
1940	5.1 C	-1.05 C
1941	6.3 C	+0.11 C
1942	6.5 C	+0.36 C
1943	5.0 C	-1.15 C
1944	6.2 C	+0.02 C
1946	6.6 C	+0.49 C
1948	6.3 C	+0.19 C
1949	7.2 C	+1.08 C
1950	5.6 C	-0.53 C
1951	6.1 C	-0.08 C
1962	6.2 C	+0.08 C
1963	6.2 C	+0.09 C
1964	7.4 C	+1.21 C
1965	6.5 C	+0.32 C
1966	7.2 C	+1.06 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

1931 to 1967

Yearly extremes at St Laurent (College): 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)	1931	33.3 C (91.9 F)	31
Coldest night (TNn)	-36.1 C (-33.0 F)	1934	-29.4 C (-20.9 F)	31
Wettest day (Rx1day)	89.4 mm (3.5 in)	1958	46.2 mm (1.8 in)	37
Wettest five days (Rx5day)	125.5 mm (4.9 in)	1958	67.5 mm (2.7 in)	37
Longest dry spell (CDD)	36 days	1961	15 days	37

Hottest day (TXx)

The hottest day of the year at St Laurent (College), 1931 to 1967. The record is 36.1 C (97.0 F) in 1931, marked on the chart; the median year is 33.3 C (91.9 F).

Hottest day (TXx) at St Laurent (College) by year
Year	Hottest day (TXx)
1931	36.1 C (97.0 F)
1932	32.8 C (91.0 F)
1933	34.4 C (93.9 F)
1934	33.3 C (91.9 F)
1935	33.9 C (93.0 F)
1936	32.8 C (91.0 F)
1937	32.2 C (90.0 F)
1938	33.3 C (91.9 F)
1939	33.9 C (93.0 F)
1940	32.8 C (91.0 F)
1941	34.4 C (93.9 F)
1942	33.9 C (93.0 F)
1943	32.2 C (90.0 F)
1944	36.1 C (97.0 F)
1945	32.8 C (91.0 F)
1946	33.9 C (93.0 F)
1947	34.4 C (93.9 F)
1948	33.9 C (93.0 F)
1949	35.6 C (96.1 F)
1950	32.2 C (90.0 F)
1951	30.0 C (86.0 F)
1952	32.8 C (91.0 F)
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	17.2 C (63.0 F)
1960	33.3 C (91.9 F)
1961	32.8 C (91.0 F)
1962	33.3 C (91.9 F)
1963	35.0 C (95.0 F)
1964	35.0 C (95.0 F)
1965	33.3 C (91.9 F)
1966	34.4 C (93.9 F)
1967	26.7 C (80.1 F)

Coldest night (TNn)

The coldest night of the year at St Laurent (College), 1931 to 1967. The record is -36.1 C (-33.0 F) in 1934, marked on the chart; the median year is -29.4 C (-20.9 F).

Coldest night (TNn) at St Laurent (College) by year
Year	Coldest night (TNn)
1931	-21.1 C (-6.0 F)
1932	-30.6 C (-23.1 F)
1933	-35.6 C (-32.1 F)
1934	-36.1 C (-33.0 F)
1935	-33.9 C (-29.0 F)
1936	-30.0 C (-22.0 F)
1937	-29.4 C (-20.9 F)
1938	-35.0 C (-31.0 F)
1939	-28.3 C (-18.9 F)
1940	-29.4 C (-20.9 F)
1941	-27.2 C (-17.0 F)
1942	-32.8 C (-27.0 F)
1943	-34.4 C (-29.9 F)
1944	-26.1 C (-15.0 F)
1945	-29.4 C (-20.9 F)
1946	-30.6 C (-23.1 F)
1947	-27.2 C (-17.0 F)
1948	-30.6 C (-23.1 F)
1949	-22.8 C (-9.0 F)
1950	-29.4 C (-20.9 F)
1951	-32.2 C (-26.0 F)
1952	-27.2 C (-17.0 F)
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	-18.9 C (-2.0 F)
1960	-28.9 C (-20.0 F)
1961	-25.6 C (-14.1 F)
1962	-31.7 C (-25.1 F)
1963	-25.0 C (-13.0 F)
1964	-23.3 C (-9.9 F)
1965	-29.4 C (-20.9 F)
1966	-26.1 C (-15.0 F)
1967	-30.0 C (-22.0 F)

Wettest day (Rx1day)

The wettest day of the year at St Laurent (College), 1931 to 1967. The record is 89.4 mm (3.5 in) in 1958, marked on the chart; the median year is 46.2 mm (1.8 in).

Wettest day (Rx1day) at St Laurent (College) by year
Year	Wettest day (Rx1day)
1931	27.2 mm (1.1 in)
1932	61.5 mm (2.4 in)
1933	54.6 mm (2.1 in)
1934	47.0 mm (1.9 in)
1935	47.8 mm (1.9 in)
1936	35.6 mm (1.4 in)
1937	32.5 mm (1.3 in)
1938	73.7 mm (2.9 in)
1939	51.1 mm (2.0 in)
1940	27.4 mm (1.1 in)
1941	32.8 mm (1.3 in)
1942	44.2 mm (1.7 in)
1943	51.1 mm (2.0 in)
1944	27.4 mm (1.1 in)
1945	46.2 mm (1.8 in)
1946	54.1 mm (2.1 in)
1947	49.5 mm (1.9 in)
1948	27.4 mm (1.1 in)
1949	71.1 mm (2.8 in)
1950	51.6 mm (2.0 in)
1951	50.0 mm (2.0 in)
1952	61.0 mm (2.4 in)
1953	41.1 mm (1.6 in)
1954	70.4 mm (2.8 in)
1955	40.6 mm (1.6 in)
1956	42.9 mm (1.7 in)
1957	49.8 mm (2.0 in)
1958	89.4 mm (3.5 in)
1959	29.2 mm (1.1 in)
1960	41.1 mm (1.6 in)
1961	65.5 mm (2.6 in)
1962	29.5 mm (1.2 in)
1963	61.7 mm (2.4 in)
1964	39.4 mm (1.6 in)
1965	32.5 mm (1.3 in)
1966	43.7 mm (1.7 in)
1967	20.3 mm (0.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at St Laurent (College), 1931 to 1967. The record is 125.5 mm (4.9 in) in 1958, marked on the chart; the median year is 67.5 mm (2.7 in).

Wettest five days (Rx5day) at St Laurent (College) by year
Year	Wettest five days (Rx5day)
1931	41.4 mm (1.6 in)
1932	110.5 mm (4.4 in)
1933	86.6 mm (3.4 in)
1934	85.3 mm (3.4 in)
1935	62.3 mm (2.5 in)
1936	58.0 mm (2.3 in)
1937	48.3 mm (1.9 in)
1938	90.7 mm (3.6 in)
1939	73.5 mm (2.9 in)
1940	46.2 mm (1.8 in)
1941	84.0 mm (3.3 in)
1942	54.1 mm (2.1 in)
1943	79.3 mm (3.1 in)
1944	48.8 mm (1.9 in)
1945	91.5 mm (3.6 in)
1946	116.3 mm (4.6 in)
1947	76.9 mm (3.0 in)
1948	56.0 mm (2.2 in)
1949	114.3 mm (4.5 in)
1950	57.1 mm (2.2 in)
1951	59.9 mm (2.4 in)
1952	79.5 mm (3.1 in)
1953	67.5 mm (2.7 in)
1954	87.7 mm (3.5 in)
1955	52.3 mm (2.1 in)
1956	68.3 mm (2.7 in)
1957	86.9 mm (3.4 in)
1958	125.5 mm (4.9 in)
1959	61.2 mm (2.4 in)
1960	69.7 mm (2.7 in)
1961	78.5 mm (3.1 in)
1962	54.4 mm (2.1 in)
1963	65.4 mm (2.6 in)
1964	58.5 mm (2.3 in)
1965	58.3 mm (2.3 in)
1966	58.7 mm (2.3 in)
1967	33.8 mm (1.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at St Laurent (College), 1931 to 1967. The record is 36 days in 1961, marked on the chart; the median year is 15 days.

Longest dry spell (CDD) at St Laurent (College) by year
Year	Longest dry spell (CDD)
1931	17 days
1932	17 days
1933	13 days
1934	14 days
1935	14 days
1936	9 days
1937	13 days
1938	11 days
1939	19 days
1940	12 days
1941	23 days
1942	14 days
1943	14 days
1944	16 days
1945	12 days
1946	17 days
1947	21 days
1948	16 days
1949	11 days
1950	14 days
1951	15 days
1952	11 days
1953	15 days
1954	9 days
1955	17 days
1956	15 days
1957	23 days
1958	13 days
1959	17 days
1960	14 days
1961	36 days
1962	16 days
1963	19 days
1964	16 days
1965	19 days
1966	16 days
1967	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

21 years with a frost

Across 21 years with a frost, the median last spring frost at St Laurent (College) falls on 3 May and the median first autumn frost on 3 October, which leaves a median of 159 days between them.

Frost dates and growing season at St Laurent (College)
Measure	Median, all years	Earliest period	Recent period (1933 to 1966)	Recent against earliest	Fitted trend
Last spring frost	3 May	n/a	3 May	n/a	n/a
First autumn frost	3 October	n/a	3 October	n/a	n/a
Growing days	159 days	n/a	159 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.

Rainfall Return Levels

32 years, 1934 to 1966

A day with at least 44.8 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 96.1 mm (3.8 in) of rain is expected about once in 100 years.

Rainfall return levels at St Laurent (College): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	44.8 mm (1.8 in)
5 years	58.8 mm (2.3 in)
10 years	68.0 mm (2.7 in)
25 years	79.4 mm (3.1 in)
50 years	87.8 mm (3.5 in)	Longer than the 32 years of record
100 years	96.1 mm (3.8 in)	Longer than the 32 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, 32 years of values from 1934 to 1966.

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: 89.4 mm (3.5 in) in 1958; 73.7 mm (2.9 in) in 1938; 71.1 mm (2.8 in) in 1949.

Download the Data

Data for St Laurent (College) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for St Laurent (College) 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).