St Ambroise Weather Records (CA007066820)

Record envelope, standing records and threshold days for St Ambroise (CA007066820), Quebec, Canada, with 71 years of record.

Key Facts for St Ambroise

St Ambroise (CA007066820) is a weather station in Quebec, Canada at 48.57 latitude and -71.33 longitude, 122 m (400 ft) above sea level.
The station reports from 1954 to 2024, 71 years of record.
1,464 records set at St Ambroise 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, 48.57 latitude, -71.33 longitude.
Elevation: 122 m (400 ft).
Period of record: 1954 to 2024, 71 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 St Ambroise. 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 Ambroise, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	7.2 C (45.0 F)	-47.2 C (-53.0 F)	n/a	n/a
Feb	10.0 C (50.0 F)	-48.9 C (-56.0 F)	n/a	n/a
Mar	20.0 C (68.0 F)	-38.9 C (-38.0 F)	n/a	n/a
Apr	26.0 C (78.8 F)	-28.3 C (-18.9 F)	n/a	n/a
May	35.0 C (95.0 F)	-12.2 C (10.0 F)	n/a	n/a
Jun	33.0 C (91.4 F)	-6.1 C (21.0 F)	n/a	n/a
Jul	35.0 C (95.0 F)	-1.1 C (30.0 F)	n/a	n/a
Aug	36.1 C (97.0 F)	-3.9 C (25.0 F)	n/a	n/a
Sep	30.6 C (87.1 F)	-7.2 C (19.0 F)	n/a	n/a
Oct	26.7 C (80.1 F)	-15.6 C (3.9 F)	n/a	n/a
Nov	20.6 C (69.1 F)	-27.8 C (-18.0 F)	n/a	n/a
Dec	12.5 C (54.5 F)	-42.5 C (-44.5 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at St Ambroise still stand. 1956 holds the most, with 91.

Standing records at St Ambroise by the year they were set
Year set	Standing records
1954	7
1955	24
1956	91
1957	54
1958	34
1959	50
1960	40
1961	47
1962	57
1963	53
1964	53
1965	48
1966	66
1967	52
1968	38
1969	46
1970	44
1971	37
1972	63
1973	33
1974	20
1975	43
1976	62
1977	53
1978	50
1979	70
1980	56
1981	61
1982	63
1983	49

Wettest Day of Each Month

May: 58.2 mm (2.3 in)

The wettest day on record for each calendar month at St Ambroise. The most was 58.2 mm (2.3 in) on 20 May 1971.

Record daily precipitation for each month at St Ambroise
Month	Record daily precipitation (mm)	Date
Jan	37.9 mm (1.5 in)	9 January 1978
Feb	31.0 mm (1.2 in)	19 February 1981
Mar	35.6 mm (1.4 in)	23 March 1972
Apr	25.1 mm (1.0 in)	8 April 1982
May	58.2 mm (2.3 in)	20 May 1971
Jun	51.8 mm (2.0 in)	21 June 1972
Jul	54.1 mm (2.1 in)	1 July 1963
Aug	45.7 mm (1.8 in)	23 August 1971
Sep	56.1 mm (2.2 in)	11 September 1974
Oct	44.2 mm (1.7 in)	9 October 1958
Nov	39.4 mm (1.6 in)	4 November 1982
Dec	50.0 mm (2.0 in)	25 December 1964

Period of Record Coverage

1954 to 1983

30 years of record at St Ambroise, 1954 to 1983. 7 years have data for under 90 percent of days and are left out of rankings: 1954, 1958, 1968, 1969, 1973, 1974, 1979.

Days with data per year at St Ambroise
Year	Days with data	Share of year	Complete
1954	122	33%	No
1955	363	99%	Yes
1956	359	98%	Yes
1957	345	95%	Yes
1958	326	89%	No
1959	364	100%	Yes
1960	351	96%	Yes
1961	365	100%	Yes
1962	331	91%	Yes
1963	333	91%	Yes
1964	365	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	361	99%	Yes
1968	309	84%	No
1969	298	82%	No
1970	359	98%	Yes
1971	362	99%	Yes
1972	366	100%	Yes
1973	316	87%	No
1974	157	43%	No
1975	360	99%	Yes
1976	343	94%	Yes
1977	356	98%	Yes
1978	345	95%	Yes
1979	327	90%	No
1980	354	97%	Yes
1981	348	95%	Yes
1982	352	96%	Yes
1983	360	99%	Yes

Latest Records

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

Climate Trend

16 complete years, 1959 to 1983

One stripe for each of 16 complete years at St Ambroise, 1959 to 1983. Blue stripes are years cooler than the station's own mean of 1.6 C (34.9 F); red stripes are warmer. The coolest year was 1972, at 0.5 C (32.8 F), and the warmest was 1981, at 3.4 C (38.2 F). The strongest colour marks a difference of 1.9 C (3.4 F).

Annual mean temperature at St Ambroise as warming stripes, 1959 to 1983
Year	Annual mean temperature	Difference from the station mean
1959	1.4 C	-0.26 C
1961	2.2 C	+0.61 C
1964	1.7 C	+0.11 C
1965	0.9 C	-0.69 C
1966	2.8 C	+1.15 C
1967	1.3 C	-0.36 C
1970	1.3 C	-0.31 C
1971	1.4 C	-0.23 C
1972	0.5 C	-1.15 C
1976	0.6 C	-1.02 C
1977	2.4 C	+0.81 C
1978	1.0 C	-0.60 C
1980	0.9 C	-0.72 C
1981	3.4 C	+1.82 C
1982	1.2 C	-0.39 C
1983	2.8 C	+1.23 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

1954 to 1983

Yearly extremes at St Ambroise: 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	32.2 C (90.0 F)	30
Coldest night (TNn)	-48.9 C (-56.0 F)	1955	-41.7 C (-43.1 F)	30
Wettest day (Rx1day)	58.2 mm (2.3 in)	1971	40.2 mm (1.6 in)	30
Wettest five days (Rx5day)	100.0 mm (3.9 in)	1964	77.7 mm (3.1 in)	30
Longest dry spell (CDD)	25 days	1958	14 days	30

Hottest day (TXx)

The hottest day of the year at St Ambroise, 1954 to 1983. The record is 36.1 C (97.0 F) in 1975, marked on the chart; the median year is 32.2 C (90.0 F).

Hottest day (TXx) at St Ambroise by year
Year	Hottest day (TXx)
1954	24.4 C (75.9 F)
1955	35.0 C (95.0 F)
1956	32.2 C (90.0 F)
1957	31.1 C (88.0 F)
1958	28.3 C (82.9 F)
1959	32.2 C (90.0 F)
1960	32.2 C (90.0 F)
1961	31.1 C (88.0 F)
1962	30.0 C (86.0 F)
1963	32.8 C (91.0 F)
1964	32.2 C (90.0 F)
1965	31.7 C (89.1 F)
1966	31.7 C (89.1 F)
1967	32.8 C (91.0 F)
1968	35.0 C (95.0 F)
1969	32.8 C (91.0 F)
1970	32.2 C (90.0 F)
1971	31.7 C (89.1 F)
1972	31.7 C (89.1 F)
1973	31.1 C (88.0 F)
1974	31.1 C (88.0 F)
1975	36.1 C (97.0 F)
1976	33.9 C (93.0 F)
1977	32.2 C (90.0 F)
1978	35.0 C (95.0 F)
1979	33.0 C (91.4 F)
1980	30.0 C (86.0 F)
1981	32.0 C (89.6 F)
1982	32.0 C (89.6 F)
1983	34.0 C (93.2 F)

Coldest night (TNn)

The coldest night of the year at St Ambroise, 1954 to 1983. The record is -48.9 C (-56.0 F) in 1955, marked on the chart; the median year is -41.7 C (-43.1 F).

Coldest night (TNn) at St Ambroise by year
Year	Coldest night (TNn)
1954	-28.9 C (-20.0 F)
1955	-48.9 C (-56.0 F)
1956	-37.2 C (-35.0 F)
1957	-46.7 C (-52.1 F)
1958	-37.8 C (-36.0 F)
1959	-41.7 C (-43.1 F)
1960	-41.7 C (-43.1 F)
1961	-43.3 C (-45.9 F)
1962	-43.3 C (-45.9 F)
1963	-41.1 C (-42.0 F)
1964	-37.2 C (-35.0 F)
1965	-37.8 C (-36.0 F)
1966	-41.1 C (-42.0 F)
1967	-44.4 C (-47.9 F)
1968	-37.2 C (-35.0 F)
1969	-32.8 C (-27.0 F)
1970	-42.2 C (-44.0 F)
1971	-43.9 C (-47.0 F)
1972	-43.3 C (-45.9 F)
1973	-43.3 C (-45.9 F)
1974	-17.8 C (0.0 F)
1975	-38.9 C (-38.0 F)
1976	-43.9 C (-47.0 F)
1977	-43.3 C (-45.9 F)
1978	-40.6 C (-41.1 F)
1979	-47.2 C (-53.0 F)
1980	-42.5 C (-44.5 F)
1981	-40.0 C (-40.0 F)
1982	-42.0 C (-43.6 F)
1983	-40.0 C (-40.0 F)

Wettest day (Rx1day)

The wettest day of the year at St Ambroise, 1954 to 1983. The record is 58.2 mm (2.3 in) in 1971, marked on the chart; the median year is 40.2 mm (1.6 in).

Wettest day (Rx1day) at St Ambroise by year
Year	Wettest day (Rx1day)
1954	35.8 mm (1.4 in)
1955	39.4 mm (1.6 in)
1956	43.2 mm (1.7 in)
1957	38.4 mm (1.5 in)
1958	44.2 mm (1.7 in)
1959	37.6 mm (1.5 in)
1960	34.8 mm (1.4 in)
1961	35.6 mm (1.4 in)
1962	45.2 mm (1.8 in)
1963	54.1 mm (2.1 in)
1964	50.0 mm (2.0 in)
1965	28.2 mm (1.1 in)
1966	43.7 mm (1.7 in)
1967	27.7 mm (1.1 in)
1968	38.6 mm (1.5 in)
1969	40.9 mm (1.6 in)
1970	45.7 mm (1.8 in)
1971	58.2 mm (2.3 in)
1972	51.8 mm (2.0 in)
1973	41.9 mm (1.6 in)
1974	56.1 mm (2.2 in)
1975	33.5 mm (1.3 in)
1976	30.2 mm (1.2 in)
1977	35.6 mm (1.4 in)
1978	39.1 mm (1.5 in)
1979	45.2 mm (1.8 in)
1980	43.0 mm (1.7 in)
1981	41.0 mm (1.6 in)
1982	39.4 mm (1.6 in)
1983	26.4 mm (1.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at St Ambroise, 1954 to 1983. The record is 100.0 mm (3.9 in) in 1964, marked on the chart; the median year is 77.7 mm (3.1 in).

Wettest five days (Rx5day) at St Ambroise by year
Year	Wettest five days (Rx5day)
1954	62.2 mm (2.4 in)
1955	88.6 mm (3.5 in)
1956	55.8 mm (2.2 in)
1957	72.4 mm (2.9 in)
1958	91.5 mm (3.6 in)
1959	57.1 mm (2.2 in)
1960	56.8 mm (2.2 in)
1961	83.1 mm (3.3 in)
1962	75.5 mm (3.0 in)
1963	76.7 mm (3.0 in)
1964	100.0 mm (3.9 in)
1965	49.3 mm (1.9 in)
1966	90.4 mm (3.6 in)
1967	60.0 mm (2.4 in)
1968	79.7 mm (3.1 in)
1969	55.3 mm (2.2 in)
1970	81.3 mm (3.2 in)
1971	79.9 mm (3.1 in)
1972	83.4 mm (3.3 in)
1973	79.8 mm (3.1 in)
1974	88.6 mm (3.5 in)
1975	65.3 mm (2.6 in)
1976	59.4 mm (2.3 in)
1977	53.4 mm (2.1 in)
1978	80.7 mm (3.2 in)
1979	64.8 mm (2.6 in)
1980	86.6 mm (3.4 in)
1981	78.7 mm (3.1 in)
1982	88.0 mm (3.5 in)
1983	53.4 mm (2.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at St Ambroise, 1954 to 1983. The record is 25 days in 1958, marked on the chart; the median year is 14 days.

Longest dry spell (CDD) at St Ambroise by year
Year	Longest dry spell (CDD)
1954	13 days
1955	13 days
1956	19 days
1957	12 days
1958	25 days
1959	17 days
1960	17 days
1961	20 days
1962	17 days
1963	13 days
1964	14 days
1965	16 days
1966	7 days
1967	11 days
1968	14 days
1969	17 days
1970	12 days
1971	9 days
1972	20 days
1973	13 days
1974	8 days
1975	18 days
1976	14 days
1977	9 days
1978	14 days
1979	14 days
1980	21 days
1981	12 days
1982	12 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.

Download the Data

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