St Bruno Weather Records (CA007026920)

Record envelope, standing records and threshold days for St Bruno (CA007026920), Quebec, Canada, with 33 years of record.

Key Facts for St Bruno

St Bruno (CA007026920) is a weather station in Quebec, Canada at 45.55 latitude and -73.35 longitude, 61 m (200 ft) above sea level.
The station reports from 1926 to 1958, 33 years of record.
1,464 records set at St Bruno still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
St Bruno set a daily record precipitation of 7.1 mm (0.28 in) on 20 August 1958.

About the Station

Location: Quebec, Canada, 45.55 latitude, -73.35 longitude.
Elevation: 61 m (200 ft).
Period of record: 1926 to 1958, 33 years.
Eligible elements: tmax, tmin, 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 Bruno. 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 Bruno, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	12.2 C (54.0 F)	-35.6 C (-32.1 F)	n/a	n/a
Feb	11.1 C (52.0 F)	-36.1 C (-33.0 F)	n/a	n/a
Mar	23.9 C (75.0 F)	-29.4 C (-20.9 F)	n/a	n/a
Apr	28.3 C (82.9 F)	-13.9 C (7.0 F)	n/a	n/a
May	33.9 C (93.0 F)	-6.1 C (21.0 F)	n/a	n/a
Jun	35.0 C (95.0 F)	-0.6 C (30.9 F)	n/a	n/a
Jul	35.0 C (95.0 F)	5.0 C (41.0 F)	n/a	n/a
Aug	34.4 C (93.9 F)	3.9 C (39.0 F)	n/a	n/a
Sep	33.3 C (91.9 F)	-5.0 C (23.0 F)	n/a	n/a
Oct	29.4 C (84.9 F)	-10.6 C (12.9 F)	n/a	n/a
Nov	22.2 C (72.0 F)	-18.9 C (-2.0 F)	n/a	n/a
Dec	16.7 C (62.1 F)	-36.1 C (-33.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at St Bruno still stand. 1933 holds the most, with 71.

Standing records at St Bruno by the year they were set
Year set	Standing records
1926	33
1927	43
1928	24
1929	57
1930	52
1931	47
1932	46
1933	71
1934	61
1935	28
1936	55
1937	35
1938	33
1939	41
1940	40
1941	44
1942	43
1943	47
1944	58
1945	66
1946	63
1947	47
1948	42
1949	45
1950	59
1951	39
1952	29
1953	42
1954	34
1955	34
1956	44
1957	44
1958	18

All-Time Record Progression

2 new records

2 all-time records were set at St Bruno between 16 February 1958 and 5 July 1958. Each dot is a new record.

When St Bruno set new all-time records
Date	Kind	Detail
1958-02-16	Record daily snowfall	Record daily snowfall 43.2 cm (17.0 in)
1958-07-05	Record daily precipitation	Record daily precipitation 77.7 mm (3.1 in)

Wettest Day of Each Month

Jul: 77.7 mm (3.1 in)

The wettest day on record for each calendar month at St Bruno. The most was 77.7 mm (3.1 in) on 5 July 1958.

Record daily precipitation for each month at St Bruno
Month	Record daily precipitation (mm)	Date
Jan	38.9 mm (1.5 in)	20 January 1947
Feb	43.2 mm (1.7 in)	16 February 1958
Mar	37.1 mm (1.5 in)	8 March 1950
Apr	35.8 mm (1.4 in)	5 April 1937
May	40.1 mm (1.6 in)	18 May 1945
Jun	74.4 mm (2.9 in)	15 June 1943
Jul	77.7 mm (3.1 in)	5 July 1958
Aug	68.8 mm (2.7 in)	7 August 1926
Sep	68.1 mm (2.7 in)	29 September 1946
Oct	72.4 mm (2.9 in)	6 October 1932
Nov	66.0 mm (2.6 in)	17 November 1927
Dec	43.9 mm (1.7 in)	5 December 1952

Period of Record Coverage

1926 to 1958

33 years of record at St Bruno, 1926 to 1958. 5 years have data for under 90 percent of days and are left out of rankings: 1926, 1945, 1953, 1954, 1958.

Days with data per year at St Bruno
Year	Days with data	Share of year	Complete
1926	305	84%	No
1927	363	99%	Yes
1928	364	99%	Yes
1929	365	100%	Yes
1930	364	100%	Yes
1931	364	100%	Yes
1932	365	100%	Yes
1933	365	100%	Yes
1934	363	99%	Yes
1935	365	100%	Yes
1936	365	100%	Yes
1937	360	99%	Yes
1938	361	99%	Yes
1939	350	96%	Yes
1940	356	97%	Yes
1941	365	100%	Yes
1942	365	100%	Yes
1943	365	100%	Yes
1944	364	99%	Yes
1945	273	75%	No
1946	361	99%	Yes
1947	363	99%	Yes
1948	366	100%	Yes
1949	362	99%	Yes
1950	352	96%	Yes
1951	349	96%	Yes
1952	356	97%	Yes
1953	319	87%	No
1954	324	89%	No
1955	351	96%	Yes
1956	359	98%	Yes
1957	364	100%	Yes
1958	234	64%	No

Latest Records

Latest records at St Bruno
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 August 1958	St Bruno, CA	daily rain	7.1 mm (0.28 in)	2.0 mm (0.08 in)	19 years	9 of 100 (Routine)
19 August 1958	St Bruno, CA	daily low min	8.3 C (46.9 F)	0.6 C (1.1 F)	28 years	12 of 100 (Routine)
18 August 1958	St Bruno, CA	daily low max (Tie)	15.6 C (60.1 F)	tie	7 years	1 of 100 (Routine)
1 August 1958	St Bruno, CA	daily high min	21.1 C (70.0 F)	1.1 C (2.0 F)	20 years	11 of 100 (Routine)
21 July 1958	St Bruno, CA	daily low min (Tie)	9.4 C (48.9 F)	tie	28 years	2 of 100 (Routine)
20 July 1958	St Bruno, CA	daily low max	20.6 C (69.1 F)	2.2 C (4.0 F)	31 years	18 of 100 (Routine)
18 July 1958	St Bruno, CA	daily rain	24.6 mm (1.0 in)	8.1 mm (0.32 in)	25 years	19 of 100 (Routine)
16 July 1958	St Bruno, CA	daily rain	13.5 mm (0.5 in)	1.8 mm (0.07 in)	20 years	11 of 100 (Routine)
6 July 1958	St Bruno, CA	monthly low max (Tie)	16.1 C (61.0 F)	tie	31 years	5 of 100 (Routine)
5 July 1958	St Bruno, CA	all-time rain	77.7 mm (3.1 in)	3.3 mm (0.13 in)	15 years	30 of 100 (Routine)
5 July 1958	St Bruno, CA	daily low max	18.3 C (64.9 F)	0.6 C (1.1 F)	7 years	6 of 100 (Routine)
2 July 1958	St Bruno, CA	daily rain	21.1 mm (0.8 in)	14.7 mm (0.6 in)	8 years	20 of 100 (Routine)
18 June 1958	St Bruno, CA	daily low min (Tie)	4.4 C (39.9 F)	tie	1 year	0 of 100 (Routine)
17 June 1958	St Bruno, CA	daily low min	6.7 C (44.1 F)	0.5 C (0.9 F)	11 years	7 of 100 (Routine)
16 June 1958	St Bruno, CA	daily low max	12.2 C (54.0 F)	4.5 C (8.1 F)	11 years	16 of 100 (Routine)
15 June 1958	St Bruno, CA	daily low min (Tie)	7.2 C (45.0 F)	tie	32 years	3 of 100 (Routine)
13 June 1958	St Bruno, CA	daily rain	17.0 mm (0.7 in)	3.0 mm (0.12 in)	11 years	9 of 100 (Routine)
7 June 1958	St Bruno, CA	daily low min (Tie)	2.2 C (36.0 F)	tie	25 years	2 of 100 (Routine)
6 June 1958	St Bruno, CA	daily low min	1.7 C (35.1 F)	2.2 C (4.0 F)	9 years	10 of 100 (Routine)
6 May 1958	St Bruno, CA	daily low min	-1.1 C (30.0 F)	2.8 C (5.0 F)	21 years	15 of 100 (Routine)

Climate Trend

24 complete years, 1927 to 1957

One stripe for each of 24 complete years at St Bruno, 1927 to 1957. Blue stripes are years cooler than the station's own mean of 6.2 C (43.2 F); red stripes are warmer. The coolest year was 1943, at 4.6 C (40.2 F), and the warmest was 1931, at 8.0 C (46.4 F). The strongest colour marks a difference of 1.8 C (3.2 F).

Annual mean temperature at St Bruno as warming stripes, 1927 to 1957
Year	Annual mean temperature	Difference from the station mean
1927	6.6 C	+0.36 C
1928	6.3 C	+0.06 C
1930	7.2 C	+0.98 C
1931	8.0 C	+1.77 C
1932	7.1 C	+0.87 C
1933	6.7 C	+0.46 C
1934	5.7 C	-0.51 C
1935	5.3 C	-0.98 C
1936	5.2 C	-0.99 C
1937	6.7 C	+0.48 C
1938	6.1 C	-0.09 C
1940	4.9 C	-1.30 C
1941	6.3 C	+0.02 C
1942	6.3 C	+0.08 C
1943	4.6 C	-1.65 C
1944	5.6 C	-0.62 C
1946	6.7 C	+0.43 C
1948	6.3 C	+0.05 C
1949	7.0 C	+0.80 C
1951	5.8 C	-0.43 C
1952	6.4 C	+0.19 C
1955	6.5 C	+0.29 C
1956	5.6 C	-0.62 C
1957	6.6 C	+0.37 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

1926 to 1958

Yearly extremes at St Bruno: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	35.0 C (95.0 F)	1931	32.8 C (91.0 F)	33
Coldest night (TNn)	-36.1 C (-33.0 F)	1933	-27.2 C (-17.0 F)	33
Wettest day (Rx1day)	77.7 mm (3.1 in)	1958	42.9 mm (1.7 in)	33
Wettest five days (Rx5day)	120.9 mm (4.8 in)	1943	67.3 mm (2.6 in)	33
Longest dry spell (CDD)	27 days	1930	16 days	33

Hottest day (TXx)

The hottest day of the year at St Bruno, 1926 to 1958. The record is 35.0 C (95.0 F) in 1931, marked on the chart; the median year is 32.8 C (91.0 F).

Hottest day (TXx) at St Bruno by year
Year	Hottest day (TXx)
1926	32.8 C (91.0 F)
1927	28.9 C (84.0 F)
1928	33.9 C (93.0 F)
1929	33.9 C (93.0 F)
1930	31.7 C (89.1 F)
1931	35.0 C (95.0 F)
1932	33.9 C (93.0 F)
1933	35.0 C (95.0 F)
1934	33.9 C (93.0 F)
1935	33.3 C (91.9 F)
1936	32.8 C (91.0 F)
1937	32.2 C (90.0 F)
1938	33.9 C (93.0 F)
1939	32.8 C (91.0 F)
1940	32.2 C (90.0 F)
1941	34.4 C (93.9 F)
1942	32.8 C (91.0 F)
1943	32.2 C (90.0 F)
1944	34.4 C (93.9 F)
1945	32.8 C (91.0 F)
1946	33.3 C (91.9 F)
1947	33.3 C (91.9 F)
1948	33.9 C (93.0 F)
1949	35.0 C (95.0 F)
1950	32.2 C (90.0 F)
1951	28.9 C (84.0 F)
1952	32.2 C (90.0 F)
1953	34.4 C (93.9 F)
1954	31.7 C (89.1 F)
1955	35.0 C (95.0 F)
1956	32.2 C (90.0 F)
1957	32.8 C (91.0 F)
1958	29.4 C (84.9 F)

Coldest night (TNn)

The coldest night of the year at St Bruno, 1926 to 1958. The record is -36.1 C (-33.0 F) in 1933, marked on the chart; the median year is -27.2 C (-17.0 F).

Coldest night (TNn) at St Bruno by year
Year	Coldest night (TNn)
1926	-22.2 C (-8.0 F)
1927	-27.8 C (-18.0 F)
1928	-25.6 C (-14.1 F)
1929	-26.7 C (-16.1 F)
1930	-28.3 C (-18.9 F)
1931	-28.3 C (-18.9 F)
1932	-26.1 C (-15.0 F)
1933	-36.1 C (-33.0 F)
1934	-33.9 C (-29.0 F)
1935	-33.9 C (-29.0 F)
1936	-26.1 C (-15.0 F)
1937	-22.8 C (-9.0 F)
1938	-25.0 C (-13.0 F)
1939	-26.1 C (-15.0 F)
1940	-26.7 C (-16.1 F)
1941	-27.2 C (-17.0 F)
1942	-32.8 C (-27.0 F)
1943	-36.1 C (-33.0 F)
1944	-26.1 C (-15.0 F)
1945	-28.9 C (-20.0 F)
1946	-28.3 C (-18.9 F)
1947	-24.4 C (-11.9 F)
1948	-28.9 C (-20.0 F)
1949	-21.7 C (-7.1 F)
1950	-29.4 C (-20.9 F)
1951	-32.2 C (-26.0 F)
1952	-26.1 C (-15.0 F)
1953	-23.9 C (-11.0 F)
1954	-27.8 C (-18.0 F)
1955	-30.0 C (-22.0 F)
1956	-25.0 C (-13.0 F)
1957	-35.6 C (-32.1 F)
1958	-25.0 C (-13.0 F)

Wettest day (Rx1day)

The wettest day of the year at St Bruno, 1926 to 1958. The record is 77.7 mm (3.1 in) in 1958, marked on the chart; the median year is 42.9 mm (1.7 in).

Wettest day (Rx1day) at St Bruno by year
Year	Wettest day (Rx1day)
1926	68.8 mm (2.7 in)
1927	66.0 mm (2.6 in)
1928	57.7 mm (2.3 in)
1929	58.4 mm (2.3 in)
1930	35.8 mm (1.4 in)
1931	28.7 mm (1.1 in)
1932	72.4 mm (2.9 in)
1933	32.3 mm (1.3 in)
1934	49.3 mm (1.9 in)
1935	35.6 mm (1.4 in)
1936	32.0 mm (1.3 in)
1937	37.1 mm (1.5 in)
1938	49.5 mm (1.9 in)
1939	36.3 mm (1.4 in)
1940	40.4 mm (1.6 in)
1941	25.9 mm (1.0 in)
1942	35.6 mm (1.4 in)
1943	74.4 mm (2.9 in)
1944	27.9 mm (1.1 in)
1945	40.1 mm (1.6 in)
1946	68.1 mm (2.7 in)
1947	41.1 mm (1.6 in)
1948	35.6 mm (1.4 in)
1949	58.9 mm (2.3 in)
1950	57.7 mm (2.3 in)
1951	42.9 mm (1.7 in)
1952	62.0 mm (2.4 in)
1953	44.5 mm (1.8 in)
1954	66.3 mm (2.6 in)
1955	29.7 mm (1.2 in)
1956	41.4 mm (1.6 in)
1957	54.4 mm (2.1 in)
1958	77.7 mm (3.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at St Bruno, 1926 to 1958. The record is 120.9 mm (4.8 in) in 1943, marked on the chart; the median year is 67.3 mm (2.6 in).

Wettest five days (Rx5day) at St Bruno by year
Year	Wettest five days (Rx5day)
1926	108.7 mm (4.3 in)
1927	118.5 mm (4.7 in)
1928	76.3 mm (3.0 in)
1929	81.3 mm (3.2 in)
1930	70.1 mm (2.8 in)
1931	62.2 mm (2.4 in)
1932	117.9 mm (4.6 in)
1933	64.6 mm (2.5 in)
1934	63.8 mm (2.5 in)
1935	53.3 mm (2.1 in)
1936	52.3 mm (2.1 in)
1937	73.0 mm (2.9 in)
1938	74.3 mm (2.9 in)
1939	63.7 mm (2.5 in)
1940	43.7 mm (1.7 in)
1941	50.9 mm (2.0 in)
1942	52.6 mm (2.1 in)
1943	120.9 mm (4.8 in)
1944	37.9 mm (1.5 in)
1945	65.0 mm (2.6 in)
1946	104.7 mm (4.1 in)
1947	66.6 mm (2.6 in)
1948	65.9 mm (2.6 in)
1949	99.2 mm (3.9 in)
1950	70.4 mm (2.8 in)
1951	75.5 mm (3.0 in)
1952	65.8 mm (2.6 in)
1953	67.3 mm (2.6 in)
1954	90.2 mm (3.6 in)
1955	62.5 mm (2.5 in)
1956	63.1 mm (2.5 in)
1957	96.9 mm (3.8 in)
1958	104.1 mm (4.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at St Bruno, 1926 to 1958. The record is 27 days in 1930, marked on the chart; the median year is 16 days.

Longest dry spell (CDD) at St Bruno by year
Year	Longest dry spell (CDD)
1926	13 days
1927	15 days
1928	25 days
1929	13 days
1930	27 days
1931	14 days
1932	19 days
1933	14 days
1934	14 days
1935	18 days
1936	27 days
1937	15 days
1938	12 days
1939	23 days
1940	19 days
1941	21 days
1942	14 days
1943	13 days
1944	17 days
1945	17 days
1946	10 days
1947	16 days
1948	16 days
1949	17 days
1950	17 days
1951	16 days
1952	18 days
1953	15 days
1954	14 days
1955	10 days
1956	15 days
1957	17 days
1958	8 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 St Bruno falls on 5 May and the median first autumn frost on 2 October, which leaves a median of 150 days between them.

Frost dates and growing season at St Bruno
Measure	Median, all years	Earliest period	Recent period (1927 to 1957)	Recent against earliest	Fitted trend
Last spring frost	5 May	n/a	5 May	n/a	n/a
First autumn frost	2 October	n/a	2 October	n/a	n/a
Growing days	150 days	n/a	150 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 St Bruno standing records by year: CSV or JSON. Field meanings are on the data page.
Data for St Bruno 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).