Montmagny Weather Records (CA007055210)

Record envelope, standing records and threshold days for Montmagny (CA007055210), Quebec, Canada, with 42 years of record.

Key Facts for Montmagny

Montmagny (CA007055210) is a weather station in Quebec, Canada at 46.97 latitude and -70.58 longitude, 15 m (49 ft) above sea level.
The station reports from 1963 to 2004, 42 years of record.
1,464 records set at Montmagny 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, 46.97 latitude, -70.58 longitude.
Elevation: 15 m (49 ft).
Period of record: 1963 to 2004, 42 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 Montmagny. 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 Montmagny, 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)	-37.0 C (-34.6 F)	n/a	n/a
Feb	13.0 C (55.4 F)	-31.7 C (-25.1 F)	n/a	n/a
Mar	16.7 C (62.1 F)	-30.0 C (-22.0 F)	n/a	n/a
Apr	22.8 C (73.0 F)	-19.0 C (-2.2 F)	n/a	n/a
May	32.2 C (90.0 F)	-6.1 C (21.0 F)	n/a	n/a
Jun	34.0 C (93.2 F)	-2.5 C (27.5 F)	n/a	n/a
Jul	36.0 C (96.8 F)	2.0 C (35.6 F)	n/a	n/a
Aug	33.3 C (91.9 F)	1.0 C (33.8 F)	n/a	n/a
Sep	30.5 C (86.9 F)	-4.5 C (23.9 F)	n/a	n/a
Oct	24.5 C (76.1 F)	-7.8 C (18.0 F)	n/a	n/a
Nov	18.9 C (66.0 F)	-20.0 C (-4.0 F)	n/a	n/a
Dec	13.3 C (55.9 F)	-32.0 C (-25.6 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Montmagny still stand. 1982 holds the most, with 106.

Standing records at Montmagny by the year they were set
Year set	Standing records
1963	76
1964	71
1965	50
1966	66
1967	71
1968	67
1969	58
1970	60
1971	62
1972	79
1973	64
1974	61
1975	64
1976	86
1977	67
1978	46
1979	68
1980	71
1981	85
1982	106
1983	86

Wettest Day of Each Month

Aug: 80.0 mm (3.1 in)

The wettest day on record for each calendar month at Montmagny. The most was 80.0 mm (3.1 in) on 5 August 1981.

Record daily precipitation for each month at Montmagny
Month	Record daily precipitation (mm)	Date
Jan	37.1 mm (1.5 in)	8 January 1978
Feb	29.2 mm (1.1 in)	19 February 1972
Mar	51.0 mm (2.0 in)	19 March 1983
Apr	32.3 mm (1.3 in)	1 April 1976
May	63.2 mm (2.5 in)	8 May 1969
Jun	40.6 mm (1.6 in)	11 June 1979
Jul	59.7 mm (2.4 in)	12 July 1976
Aug	80.0 mm (3.1 in)	5 August 1981
Sep	61.7 mm (2.4 in)	5 September 1973
Oct	64.8 mm (2.6 in)	9 October 1976
Nov	40.9 mm (1.6 in)	2 November 1963
Dec	41.1 mm (1.6 in)	27 December 1969

Period of Record Coverage

1963 to 1983

21 years of record at Montmagny, 1963 to 1983. Every year has data for at least 90 percent of its days.

Days with data per year at Montmagny
Year	Days with data	Share of year	Complete
1963	363	99%	Yes
1964	365	100%	Yes
1965	364	100%	Yes
1966	365	100%	Yes
1967	364	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	364	100%	Yes
1972	366	100%	Yes
1973	364	100%	Yes
1974	364	100%	Yes
1975	353	97%	Yes
1976	366	100%	Yes
1977	361	99%	Yes
1978	361	99%	Yes
1979	356	98%	Yes
1980	365	100%	Yes
1981	364	100%	Yes
1982	362	99%	Yes
1983	365	100%	Yes

Latest Records

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

Climate Trend

20 complete years, 1963 to 1983

One stripe for each of 20 complete years at Montmagny, 1963 to 1983. Blue stripes are years cooler than the station's own mean of 4.2 C (39.5 F); red stripes are warmer. The coolest year was 1982, at 2.5 C (36.5 F), and the warmest was 1973, at 5.3 C (41.5 F). The strongest colour marks a difference of 1.8 C (3.2 F).

Annual mean temperature at Montmagny as warming stripes, 1963 to 1983
Year	Annual mean temperature	Difference from the station mean
1963	4.1 C	-0.04 C
1964	5.0 C	+0.85 C
1965	4.0 C	-0.17 C
1966	5.2 C	+1.01 C
1967	4.1 C	-0.05 C
1968	4.3 C	+0.07 C
1969	5.1 C	+0.89 C
1970	4.4 C	+0.24 C
1971	4.3 C	+0.13 C
1972	3.2 C	-0.99 C
1973	5.3 C	+1.08 C
1974	4.1 C	-0.13 C
1975	4.8 C	+0.58 C
1976	3.5 C	-0.68 C
1977	4.5 C	+0.36 C
1978	3.9 C	-0.25 C
1980	3.3 C	-0.92 C
1981	4.0 C	-0.14 C
1982	2.5 C	-1.70 C
1983	4.1 C	-0.06 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

1963 to 1983

Yearly extremes at Montmagny: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	36.0 C (96.8 F)	1983	31.7 C (89.1 F)	21
Coldest night (TNn)	-37.0 C (-34.6 F)	1981	-28.9 C (-20.0 F)	21
Wettest day (Rx1day)	80.0 mm (3.1 in)	1981	43.0 mm (1.7 in)	21
Wettest five days (Rx5day)	142.0 mm (5.6 in)	1976	75.0 mm (3.0 in)	21
Longest dry spell (CDD)	27 days	1970	16 days	21

Hottest day (TXx)

The hottest day of the year at Montmagny, 1963 to 1983. The record is 36.0 C (96.8 F) in 1983, marked on the chart; the median year is 31.7 C (89.1 F).

Hottest day (TXx) at Montmagny by year
Year	Hottest day (TXx)
1963	33.3 C (91.9 F)
1964	31.7 C (89.1 F)
1965	30.6 C (87.1 F)
1966	31.7 C (89.1 F)
1967	31.7 C (89.1 F)
1968	32.8 C (91.0 F)
1969	30.6 C (87.1 F)
1970	31.7 C (89.1 F)
1971	30.0 C (86.0 F)
1972	31.7 C (89.1 F)
1973	31.7 C (89.1 F)
1974	30.6 C (87.1 F)
1975	33.3 C (91.9 F)
1976	31.1 C (88.0 F)
1977	32.2 C (90.0 F)
1978	32.8 C (91.0 F)
1979	32.8 C (91.0 F)
1980	30.5 C (86.9 F)
1981	33.5 C (92.3 F)
1982	31.0 C (87.8 F)
1983	36.0 C (96.8 F)

Coldest night (TNn)

The coldest night of the year at Montmagny, 1963 to 1983. The record is -37.0 C (-34.6 F) in 1981, marked on the chart; the median year is -28.9 C (-20.0 F).

Coldest night (TNn) at Montmagny by year
Year	Coldest night (TNn)
1963	-30.0 C (-22.0 F)
1964	-24.4 C (-11.9 F)
1965	-28.9 C (-20.0 F)
1966	-28.3 C (-18.9 F)
1967	-30.6 C (-23.1 F)
1968	-28.3 C (-18.9 F)
1969	-21.7 C (-7.1 F)
1970	-26.1 C (-15.0 F)
1971	-28.9 C (-20.0 F)
1972	-31.7 C (-25.1 F)
1973	-28.9 C (-20.0 F)
1974	-30.6 C (-23.1 F)
1975	-28.9 C (-20.0 F)
1976	-27.8 C (-18.0 F)
1977	-25.0 C (-13.0 F)
1978	-25.0 C (-13.0 F)
1979	-28.0 C (-18.4 F)
1980	-32.0 C (-25.6 F)
1981	-37.0 C (-34.6 F)
1982	-35.0 C (-31.0 F)
1983	-27.0 C (-16.6 F)

Wettest day (Rx1day)

The wettest day of the year at Montmagny, 1963 to 1983. The record is 80.0 mm (3.1 in) in 1981, marked on the chart; the median year is 43.0 mm (1.7 in).

Wettest day (Rx1day) at Montmagny by year
Year	Wettest day (Rx1day)
1963	45.2 mm (1.8 in)
1964	40.4 mm (1.6 in)
1965	34.3 mm (1.4 in)
1966	35.3 mm (1.4 in)
1967	36.8 mm (1.4 in)
1968	37.3 mm (1.5 in)
1969	63.2 mm (2.5 in)
1970	35.1 mm (1.4 in)
1971	68.6 mm (2.7 in)
1972	38.1 mm (1.5 in)
1973	61.7 mm (2.4 in)
1974	49.8 mm (2.0 in)
1975	33.0 mm (1.3 in)
1976	64.8 mm (2.6 in)
1977	40.6 mm (1.6 in)
1978	48.0 mm (1.9 in)
1979	55.6 mm (2.2 in)
1980	43.0 mm (1.7 in)
1981	80.0 mm (3.1 in)
1982	29.0 mm (1.1 in)
1983	51.0 mm (2.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Montmagny, 1963 to 1983. The record is 142.0 mm (5.6 in) in 1976, marked on the chart; the median year is 75.0 mm (3.0 in).

Wettest five days (Rx5day) at Montmagny by year
Year	Wettest five days (Rx5day)
1963	79.1 mm (3.1 in)
1964	70.2 mm (2.8 in)
1965	61.7 mm (2.4 in)
1966	64.0 mm (2.5 in)
1967	94.7 mm (3.7 in)
1968	48.8 mm (1.9 in)
1969	88.4 mm (3.5 in)
1970	56.1 mm (2.2 in)
1971	79.3 mm (3.1 in)
1972	63.5 mm (2.5 in)
1973	89.9 mm (3.5 in)
1974	118.6 mm (4.7 in)
1975	62.0 mm (2.4 in)
1976	142.0 mm (5.6 in)
1977	75.2 mm (3.0 in)
1978	61.0 mm (2.4 in)
1979	78.7 mm (3.1 in)
1980	75.0 mm (3.0 in)
1981	120.0 mm (4.7 in)
1982	59.0 mm (2.3 in)
1983	73.0 mm (2.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Montmagny, 1963 to 1983. The record is 27 days in 1970, marked on the chart; the median year is 16 days.

Longest dry spell (CDD) at Montmagny by year
Year	Longest dry spell (CDD)
1963	14 days
1964	16 days
1965	18 days
1966	11 days
1967	16 days
1968	11 days
1969	26 days
1970	27 days
1971	16 days
1972	13 days
1973	15 days
1974	12 days
1975	16 days
1976	19 days
1977	17 days
1978	15 days
1979	19 days
1980	16 days
1981	12 days
1982	12 days
1983	14 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

20 years with a frost

Across 20 years with a frost, the median last spring frost at Montmagny falls on 10 May and the median first autumn frost on 2 October, which leaves a median of 142 days between them.

Frost dates and growing season at Montmagny
Measure	Median, all years	Earliest period	Recent period (1963 to 1983)	Recent against earliest	Fitted trend
Last spring frost	10 May	n/a	10 May	n/a	n/a
First autumn frost	2 October	n/a	2 October	n/a	n/a
Growing days	142 days	n/a	142 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 Montmagny standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Montmagny 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).