Magog Weather Records (CA007024440)

Record envelope, standing records and threshold days for Magog (CA007024440), Quebec, Canada, with 77 years of record.

Key Facts for Magog

Magog (CA007024440) is a weather station in Quebec, Canada at 45.27 latitude and -72.12 longitude, 274 m (899 ft) above sea level.
The station reports from 1948 to 2024, 77 years of record.
1,464 records set at Magog still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Magog set a daily record low maximum temperature of -20.0 C (-4.0 F) on 20 December 1983.

About the Station

Location: Quebec, Canada, 45.27 latitude, -72.12 longitude.
Elevation: 274 m (899 ft).
Period of record: 1948 to 2024, 77 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 Magog. 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 Magog, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	13.9 C (57.0 F)	-37.2 C (-35.0 F)	n/a	n/a
Feb	15.0 C (59.0 F)	-35.6 C (-32.1 F)	n/a	n/a
Mar	22.8 C (73.0 F)	-31.7 C (-25.1 F)	n/a	n/a
Apr	27.8 C (82.0 F)	-17.2 C (1.0 F)	n/a	n/a
May	33.9 C (93.0 F)	-6.1 C (21.0 F)	n/a	n/a
Jun	32.2 C (90.0 F)	-0.6 C (30.9 F)	n/a	n/a
Jul	34.4 C (93.9 F)	2.0 C (35.6 F)	n/a	n/a
Aug	33.3 C (91.9 F)	0.6 C (33.1 F)	n/a	n/a
Sep	30.6 C (87.1 F)	-5.0 C (23.0 F)	n/a	n/a
Oct	27.2 C (81.0 F)	-8.9 C (16.0 F)	n/a	n/a
Nov	22.8 C (73.0 F)	-20.6 C (-5.1 F)	n/a	n/a
Dec	15.5 C (59.9 F)	-32.0 C (-25.6 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Magog still stand. 1959 holds the most, with 69.

Standing records at Magog by the year they were set
Year set	Standing records
1949	6
1950	52
1951	40
1952	25
1953	60
1954	37
1955	54
1956	49
1957	58
1958	33
1959	69
1960	30
1961	14
1962	18
1963	39
1964	42
1965	40
1966	52
1967	38
1968	50
1969	30
1970	38
1971	41
1972	25
1973	50
1974	51
1975	39
1976	62
1977	42
1978	40
1979	57
1980	38
1981	60
1982	48
1983	37

Wettest Day of Each Month

Oct: 70.9 mm (2.8 in)

The wettest day on record for each calendar month at Magog. The most was 70.9 mm (2.8 in) on 6 October 1962.

Record daily precipitation for each month at Magog
Month	Record daily precipitation (mm)	Date
Jan	62.2 mm (2.4 in)	27 January 1963
Feb	38.1 mm (1.5 in)	18 February 1965
Mar	35.6 mm (1.4 in)	8 March 1956
Apr	44.0 mm (1.7 in)	17 April 1982
May	47.0 mm (1.9 in)	19 May 1969
Jun	43.2 mm (1.7 in)	4 June 1981
Jul	61.5 mm (2.4 in)	6 July 1953
Aug	63.8 mm (2.5 in)	26 August 1975
Sep	67.8 mm (2.7 in)	12 September 1960
Oct	70.9 mm (2.8 in)	6 October 1962
Nov	41.4 mm (1.6 in)	27 November 1959
Dec	51.3 mm (2.0 in)	26 December 1969

Period of Record Coverage

1949 to 1983

35 years of record at Magog, 1949 to 1983. 4 years have data for under 90 percent of days and are left out of rankings: 1949, 1961, 1962, 1963.

Days with data per year at Magog
Year	Days with data	Share of year	Complete
1949	49	13%	No
1950	364	100%	Yes
1951	357	98%	Yes
1952	366	100%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	364	100%	Yes
1956	365	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	364	100%	Yes
1960	366	100%	Yes
1961	116	32%	No
1962	113	31%	No
1963	275	75%	No
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	364	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	364	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	361	99%	Yes
1981	364	100%	Yes
1982	363	99%	Yes
1983	359	98%	Yes

Latest Records

Latest records at Magog
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 December 1983	Magog, CA	daily low max	-20.0 C (-4.0 F)	1.7 C (3.1 F)	20 years	11 of 100 (Routine)
15 December 1983	Magog, CA	daily high min	1.0 C (33.8 F)	2.1 C (3.8 F)	29 years	13 of 100 (Routine)
14 December 1983	Magog, CA	daily high min	1.0 C (33.8 F)	1.0 C (1.8 F)	14 years	8 of 100 (Routine)
13 December 1983	Magog, CA	daily rain	25.6 mm (1.0 in)	14.2 mm (0.6 in)	29 years	31 of 100 (Routine)
12 December 1983	Magog, CA	daily rain	33.0 mm (1.3 in)	4.8 mm (0.19 in)	24 years	16 of 100 (Routine)
18 November 1983	Magog, CA	daily low max	-4.0 C (24.8 F)	0.7 C (1.3 F)	32 years	13 of 100 (Routine)
15 November 1983	Magog, CA	daily snowfall	12.0 cm (4.7 in)	4.9 cm (1.9 in)	14 years	16 of 100 (Routine)
15 November 1983	Magog, CA	daily rain	12.0 mm (0.5 in)	1.6 mm (0.06 in)	22 years	11 of 100 (Routine)
11 November 1983	Magog, CA	daily rain	20.5 mm (0.8 in)	11.1 mm (0.4 in)	18 years	20 of 100 (Routine)
13 October 1983	Magog, CA	daily high max	23.5 C (74.3 F)	0.2 C (0.4 F)	9 years	5 of 100 (Routine)
10 October 1983	Magog, CA	daily low min	-4.0 C (24.8 F)	1.0 C (1.8 F)	2 years	5 of 100 (Routine)
5 October 1983	Magog, CA	daily rain	23.7 mm (0.9 in)	1.9 mm (0.07 in)	9 years	7 of 100 (Routine)
4 October 1983	Magog, CA	daily rain	24.0 mm (0.9 in)	14.9 mm (0.6 in)	33 years	20 of 100 (Routine)
2 October 1983	Magog, CA	daily high min	15.5 C (59.9 F)	1.1 C (2.0 F)	14 years	9 of 100 (Routine)
20 September 1983	Magog, CA	daily high max	28.5 C (83.3 F)	0.2 C (0.4 F)	14 years	7 of 100 (Routine)
15 September 1983	Magog, CA	daily low min	1.0 C (33.8 F)	0.1 C (0.2 F)	20 years	9 of 100 (Routine)
11 September 1983	Magog, CA	daily high max (Tie)	26.0 C (78.8 F)	tie	0 years	0 of 100 (Routine)
6 September 1983	Magog, CA	daily high min	19.0 C (66.2 F)	1.8 C (3.2 F)	26 years	14 of 100 (Routine)
6 September 1983	Magog, CA	daily high max	29.0 C (84.2 F)	1.8 C (3.2 F)	24 years	13 of 100 (Routine)
13 August 1983	Magog, CA	daily low min	5.5 C (41.9 F)	1.7 C (3.1 F)	32 years	16 of 100 (Routine)

Climate Trend

28 complete years, 1952 to 1983

One stripe for each of 28 complete years at Magog, 1952 to 1983. Blue stripes are years cooler than the station's own mean of 5.4 C (41.8 F); red stripes are warmer. The coolest year was 1980, at 4.5 C (40.0 F), and the warmest was 1953, at 7.3 C (45.1 F). The strongest colour marks a difference of 1.9 C (3.4 F).

Annual mean temperature at Magog as warming stripes, 1952 to 1983
Year	Annual mean temperature	Difference from the station mean
1952	6.0 C	+0.55 C
1953	7.3 C	+1.84 C
1954	5.3 C	-0.11 C
1955	5.7 C	+0.24 C
1956	4.9 C	-0.53 C
1957	5.8 C	+0.36 C
1958	4.8 C	-0.70 C
1959	5.9 C	+0.46 C
1960	5.9 C	+0.44 C
1964	5.7 C	+0.24 C
1965	5.0 C	-0.41 C
1966	5.7 C	+0.22 C
1967	5.2 C	-0.26 C
1968	5.2 C	-0.30 C
1969	5.7 C	+0.27 C
1970	4.9 C	-0.54 C
1971	4.9 C	-0.57 C
1973	6.3 C	+0.81 C
1974	4.8 C	-0.62 C
1975	6.0 C	+0.59 C
1976	4.7 C	-0.78 C
1977	5.5 C	+0.05 C
1978	4.6 C	-0.86 C
1979	5.8 C	+0.38 C
1980	4.5 C	-0.98 C
1981	5.7 C	+0.25 C
1982	5.0 C	-0.46 C
1983	5.8 C	+0.31 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 1983

Yearly extremes at Magog: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	34.4 C (93.9 F)	1959	31.7 C (89.1 F)	35
Coldest night (TNn)	-37.2 C (-35.0 F)	1957	-31.1 C (-24.0 F)	35
Wettest day (Rx1day)	70.9 mm (2.8 in)	1962	41.8 mm (1.6 in)	36
Wettest five days (Rx5day)	103.9 mm (4.1 in)	1975	74.1 mm (2.9 in)	36
Longest dry spell (CDD)	21 days	1949	14 days	36

Hottest day (TXx)

The hottest day of the year at Magog, 1948 to 1983. The record is 34.4 C (93.9 F) in 1959, marked on the chart; the median year is 31.7 C (89.1 F).

Hottest day (TXx) at Magog by year
Year	Hottest day (TXx)
1948	n/a
1949	14.4 C (57.9 F)
1950	31.7 C (89.1 F)
1951	29.4 C (84.9 F)
1952	33.3 C (91.9 F)
1953	33.9 C (93.0 F)
1954	31.7 C (89.1 F)
1955	33.3 C (91.9 F)
1956	31.1 C (88.0 F)
1957	31.1 C (88.0 F)
1958	30.6 C (87.1 F)
1959	34.4 C (93.9 F)
1960	31.1 C (88.0 F)
1961	31.1 C (88.0 F)
1962	29.4 C (84.9 F)
1963	31.7 C (89.1 F)
1964	31.7 C (89.1 F)
1965	31.7 C (89.1 F)
1966	31.7 C (89.1 F)
1967	30.0 C (86.0 F)
1968	31.7 C (89.1 F)
1969	32.2 C (90.0 F)
1970	33.9 C (93.0 F)
1971	31.1 C (88.0 F)
1972	28.9 C (84.0 F)
1973	31.7 C (89.1 F)
1974	29.4 C (84.9 F)
1975	33.3 C (91.9 F)
1976	29.4 C (84.9 F)
1977	33.9 C (93.0 F)
1978	31.1 C (88.0 F)
1979	31.7 C (89.1 F)
1980	29.5 C (85.1 F)
1981	31.0 C (87.8 F)
1982	31.5 C (88.7 F)
1983	34.0 C (93.2 F)

Coldest night (TNn)

The coldest night of the year at Magog, 1948 to 1983. The record is -37.2 C (-35.0 F) in 1957, marked on the chart; the median year is -31.1 C (-24.0 F).

Coldest night (TNn) at Magog by year
Year	Coldest night (TNn)
1948	n/a
1949	-20.0 C (-4.0 F)
1950	-31.7 C (-25.1 F)
1951	-30.0 C (-22.0 F)
1952	-28.3 C (-18.9 F)
1953	-26.7 C (-16.1 F)
1954	-31.1 C (-24.0 F)
1955	-32.8 C (-27.0 F)
1956	-30.0 C (-22.0 F)
1957	-37.2 C (-35.0 F)
1958	-31.1 C (-24.0 F)
1959	-33.3 C (-27.9 F)
1960	-34.4 C (-29.9 F)
1961	-31.7 C (-25.1 F)
1962	-35.6 C (-32.1 F)
1963	-26.7 C (-16.1 F)
1964	-28.9 C (-20.0 F)
1965	-31.1 C (-24.0 F)
1966	-31.1 C (-24.0 F)
1967	-31.1 C (-24.0 F)
1968	-31.7 C (-25.1 F)
1969	-27.8 C (-18.0 F)
1970	-31.1 C (-24.0 F)
1971	-30.6 C (-23.1 F)
1972	-28.9 C (-20.0 F)
1973	-31.1 C (-24.0 F)
1974	-35.6 C (-32.1 F)
1975	-28.9 C (-20.0 F)
1976	-33.3 C (-27.9 F)
1977	-25.6 C (-14.1 F)
1978	-31.1 C (-24.0 F)
1979	-30.6 C (-23.1 F)
1980	-32.0 C (-25.6 F)
1981	-34.0 C (-29.2 F)
1982	-30.0 C (-22.0 F)
1983	-29.5 C (-21.1 F)

Wettest day (Rx1day)

The wettest day of the year at Magog, 1948 to 1983. The record is 70.9 mm (2.8 in) in 1962, marked on the chart; the median year is 41.8 mm (1.6 in).

Wettest day (Rx1day) at Magog by year
Year	Wettest day (Rx1day)
1948	34.8 mm (1.4 in)
1949	42.7 mm (1.7 in)
1950	50.5 mm (2.0 in)
1951	41.9 mm (1.6 in)
1952	44.7 mm (1.8 in)
1953	61.5 mm (2.4 in)
1954	38.1 mm (1.5 in)
1955	38.9 mm (1.5 in)
1956	39.1 mm (1.5 in)
1957	37.3 mm (1.5 in)
1958	33.3 mm (1.3 in)
1959	41.4 mm (1.6 in)
1960	67.8 mm (2.7 in)
1961	41.9 mm (1.6 in)
1962	70.9 mm (2.8 in)
1963	62.2 mm (2.4 in)
1964	38.4 mm (1.5 in)
1965	41.1 mm (1.6 in)
1966	61.5 mm (2.4 in)
1967	31.0 mm (1.2 in)
1968	36.6 mm (1.4 in)
1969	51.3 mm (2.0 in)
1970	36.6 mm (1.4 in)
1971	55.9 mm (2.2 in)
1972	34.0 mm (1.3 in)
1973	46.2 mm (1.8 in)
1974	41.7 mm (1.6 in)
1975	63.8 mm (2.5 in)
1976	56.6 mm (2.2 in)
1977	43.2 mm (1.7 in)
1978	41.1 mm (1.6 in)
1979	38.9 mm (1.5 in)
1980	28.0 mm (1.1 in)
1981	45.0 mm (1.8 in)
1982	47.0 mm (1.9 in)
1983	33.0 mm (1.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Magog, 1948 to 1983. The record is 103.9 mm (4.1 in) in 1975, marked on the chart; the median year is 74.1 mm (2.9 in).

Wettest five days (Rx5day) at Magog by year
Year	Wettest five days (Rx5day)
1948	65.6 mm (2.6 in)
1949	84.6 mm (3.3 in)
1950	71.3 mm (2.8 in)
1951	66.3 mm (2.6 in)
1952	59.0 mm (2.3 in)
1953	98.6 mm (3.9 in)
1954	65.6 mm (2.6 in)
1955	58.5 mm (2.3 in)
1956	50.5 mm (2.0 in)
1957	74.1 mm (2.9 in)
1958	74.9 mm (2.9 in)
1959	87.7 mm (3.5 in)
1960	92.5 mm (3.6 in)
1961	63.8 mm (2.5 in)
1962	97.5 mm (3.8 in)
1963	99.8 mm (3.9 in)
1964	49.2 mm (1.9 in)
1965	72.6 mm (2.9 in)
1966	90.2 mm (3.6 in)
1967	74.1 mm (2.9 in)
1968	70.5 mm (2.8 in)
1969	85.2 mm (3.4 in)
1970	74.4 mm (2.9 in)
1971	84.4 mm (3.3 in)
1972	65.5 mm (2.6 in)
1973	76.1 mm (3.0 in)
1974	86.7 mm (3.4 in)
1975	103.9 mm (4.1 in)
1976	92.6 mm (3.6 in)
1977	67.6 mm (2.7 in)
1978	65.6 mm (2.6 in)
1979	64.2 mm (2.5 in)
1980	74.4 mm (2.9 in)
1981	80.4 mm (3.2 in)
1982	64.1 mm (2.5 in)
1983	73.4 mm (2.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Magog, 1948 to 1983. The record is 21 days in 1949, marked on the chart; the median year is 14 days.

Longest dry spell (CDD) at Magog by year
Year	Longest dry spell (CDD)
1948	18 days
1949	21 days
1950	12 days
1951	15 days
1952	11 days
1953	20 days
1954	12 days
1955	10 days
1956	19 days
1957	14 days
1958	8 days
1959	19 days
1960	10 days
1961	17 days
1962	15 days
1963	19 days
1964	15 days
1965	12 days
1966	10 days
1967	15 days
1968	12 days
1969	14 days
1970	17 days
1971	12 days
1972	13 days
1973	13 days
1974	12 days
1975	12 days
1976	19 days
1977	14 days
1978	16 days
1979	15 days
1980	21 days
1981	9 days
1982	15 days
1983	13 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

28 years with a frost

Across 28 years with a frost, the median last spring frost at Magog falls on 16 May and the median first autumn frost on 2 October, which leaves a median of 139 days between them.

Fitted over all years, the growing season changes by +3.2 days per decade at this station.

Frost dates and growing season at Magog
Measure	Median, all years	Earliest period	Recent period (1952 to 1983)	Recent against earliest	Fitted trend
Last spring frost	16 May	n/a	16 May	n/a	-2.5 days per decade
First autumn frost	2 October	n/a	2 October	n/a	+0.7 days per decade
Growing days	139 days	n/a	139 days	n/a	+3.2 days per decade

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

34 years, 1950 to 1983

A day with at least 43.0 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 84.9 mm (3.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Magog: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	43.0 mm (1.7 in)
5 years	53.1 mm (2.1 in)
10 years	60.2 mm (2.4 in)
25 years	69.7 mm (2.7 in)
50 years	77.2 mm (3.0 in)	Longer than the 34 years of record
100 years	84.9 mm (3.3 in)	Longer than the 34 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, 34 years of values from 1950 to 1983.

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: 70.9 mm (2.8 in) in 1962; 67.8 mm (2.7 in) in 1960; 63.8 mm (2.5 in) in 1975.

Download the Data

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