Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Montreal/St-Hubert A. 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 Montreal/St-Hubert A, 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)
-36.1 C (-33.0 F)
n/a
n/a
Feb
15.3 C (59.5 F)
-37.2 C (-35.0 F)
n/a
n/a
Mar
23.7 C (74.7 F)
-36.1 C (-33.0 F)
n/a
n/a
Apr
30.6 C (87.1 F)
-15.0 C (5.0 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)
1.3 C (34.3 F)
n/a
n/a
Jul
35.6 C (96.1 F)
4.9 C (40.8 F)
n/a
n/a
Aug
35.6 C (96.1 F)
1.7 C (35.1 F)
n/a
n/a
Sep
32.8 C (91.0 F)
-4.9 C (23.2 F)
n/a
n/a
Oct
28.9 C (84.0 F)
-8.9 C (16.0 F)
n/a
n/a
Nov
22.8 C (73.0 F)
-22.8 C (-9.0 F)
n/a
n/a
Dec
15.0 C (59.0 F)
-37.2 C (-35.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Montreal/St-Hubert A still stand. 1933 holds the most, with 50.
Standing records at Montreal/St-Hubert A by the year they were set
Year set
Standing records
1928
10
1929
39
1930
43
1931
41
1932
36
1933
50
1934
50
1935
39
1936
44
1937
30
1938
28
1939
31
1940
35
1941
14
1949
21
1950
39
1951
28
1952
13
1953
38
1954
26
1955
32
1956
22
1957
36
1958
16
1959
29
1960
18
1961
20
1962
17
1963
29
1964
33
1965
23
1966
29
1967
18
1968
34
1969
17
1970
27
1971
22
1972
24
1973
26
1974
30
1975
22
1976
36
1977
43
1978
28
1979
45
1980
22
1981
49
1982
37
1983
25
All-Time Record Progression
3 new records
3 all-time records were set at Montreal/St-Hubert A between 23 January 1966 and 4 March 1971. Each dot is a new record.
When Montreal/St-Hubert A set new all-time records
Date
Kind
Detail
1966-01-23
Record daily snowfall
Record daily snowfall 37.8 cm (14.9 in)
1969-12-27
Record daily snowfall
Record daily snowfall 46.7 cm (18.4 in)
1971-03-04
Record daily snowfall
Record daily snowfall 51.1 cm (20.1 in)
Wettest Day of Each Month
Jun: 77.7 mm (3.1 in)
The wettest day on record for each calendar month at Montreal/St-Hubert A. The most was 77.7 mm (3.1 in) on 25 June 1929.
Record daily precipitation for each month at Montreal/St-Hubert A
Month
Record daily precipitation (mm)
Date
Jan
37.3 mm (1.5 in)
23 January 1966
Feb
33.0 mm (1.3 in)
2 February 1973
Mar
52.3 mm (2.1 in)
4 March 1971
Apr
45.7 mm (1.8 in)
16 April 1954
May
49.0 mm (1.9 in)
20 May 1938
Jun
77.7 mm (3.1 in)
25 June 1929
Jul
73.4 mm (2.9 in)
5 July 1958
Aug
74.4 mm (2.9 in)
31 August 1954
Sep
73.6 mm (2.9 in)
14 September 1979
Oct
67.3 mm (2.6 in)
6 October 1932
Nov
46.2 mm (1.8 in)
4 November 1950
Dec
58.7 mm (2.3 in)
27 December 1969
Period of Record Coverage
1928 to 1983
Complete yearUnder 90 percent of days
49 years of record at Montreal/St-Hubert A, 1928 to 1983. 3 years have data for under 90 percent of days and are left out of rankings: 1928, 1941, 1949.
Cooler than the station meanWarmer than the station mean
One stripe for each of 46 complete years at Montreal/St-Hubert A, 1929 to 1983. Blue stripes are years cooler than the station's own mean of 5.9 C (42.6 F); red stripes are warmer. The coolest year was 1934, at 4.7 C (40.4 F), and the warmest was 1953, at 7.7 C (45.9 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Montreal/St-Hubert A as warming stripes, 1929 to 1983
Year
Annual mean temperature
Difference from the station mean
1929
5.1 C
-0.82 C
1930
6.0 C
+0.04 C
1931
6.8 C
+0.87 C
1932
6.1 C
+0.17 C
1933
5.3 C
-0.60 C
1934
4.7 C
-1.24 C
1935
5.1 C
-0.79 C
1936
5.0 C
-0.94 C
1937
6.6 C
+0.71 C
1938
6.2 C
+0.24 C
1939
5.2 C
-0.70 C
1940
4.9 C
-0.97 C
1950
5.7 C
-0.20 C
1951
6.2 C
+0.26 C
1952
6.9 C
+0.99 C
1953
7.7 C
+1.83 C
1954
6.0 C
+0.09 C
1955
6.6 C
+0.66 C
1956
5.8 C
-0.10 C
1957
6.8 C
+0.86 C
1958
5.7 C
-0.25 C
1959
6.6 C
+0.67 C
1960
6.9 C
+0.95 C
1961
6.6 C
+0.64 C
1962
5.6 C
-0.29 C
1963
5.6 C
-0.29 C
1964
6.6 C
+0.71 C
1965
5.9 C
+0.01 C
1966
6.4 C
+0.51 C
1967
5.8 C
-0.11 C
1968
5.9 C
-0.01 C
1969
6.3 C
+0.39 C
1970
5.9 C
-0.04 C
1971
5.9 C
+0.01 C
1972
4.9 C
-0.98 C
1973
6.7 C
+0.74 C
1974
5.1 C
-0.81 C
1975
6.2 C
+0.26 C
1976
5.0 C
-0.93 C
1977
5.8 C
-0.13 C
1978
4.9 C
-1.00 C
1979
6.4 C
+0.44 C
1980
5.0 C
-0.88 C
1981
6.1 C
+0.21 C
1982
5.3 C
-0.62 C
1983
6.5 C
+0.55 C
The fitted trend in annual mean temperature here over 1929 to 1983 is 0.02 C (-0.10 to 0.15) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.04 F (-0.19 to 0.26) per decade. The slope is a straight line fitted to 46 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Montreal/St-Hubert A
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.02 C (-0.10 to 0.15) per decade
0.04 F (-0.19 to 0.26) per decade
1929 to 1983
46
Not clearly different from zero
Mean daily maximum
0.08 C (-0.04 to 0.19) per decade
0.1 F (-0.1 to 0.3) per decade
1929 to 1983
46
Not clearly different from zero
Mean daily minimum
-0.03 C (-0.18 to 0.12) per decade
-0.1 F (-0.3 to 0.2) per decade
1929 to 1983
46
Not clearly different from zero
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
1928 to 1983
Yearly extremes at Montreal/St-Hubert A: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
35.6 C (96.1 F)
1955
33.3 C (91.9 F)
49
Coldest night (TNn)
-37.2 C (-35.0 F)
1933
-30.0 C (-22.0 F)
49
Wettest day (Rx1day)
77.7 mm (3.1 in)
1929
42.9 mm (1.7 in)
49
Wettest five days (Rx5day)
115.9 mm (4.6 in)
1958
65.3 mm (2.6 in)
49
Longest dry spell (CDD)
24 days
1941
15 days
49
Hottest day (TXx)
The hottest day of the year at Montreal/St-Hubert A, 1928 to 1983. The record is 35.6 C (96.1 F) in 1955, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at Montreal/St-Hubert A by year
Year
Hottest day (TXx)
1928
33.3 C (91.9 F)
1929
33.3 C (91.9 F)
1930
31.7 C (89.1 F)
1931
35.0 C (95.0 F)
1932
33.3 C (91.9 F)
1933
35.0 C (95.0 F)
1934
33.3 C (91.9 F)
1935
33.3 C (91.9 F)
1936
31.7 C (89.1 F)
1937
31.7 C (89.1 F)
1938
34.4 C (93.9 F)
1939
32.8 C (91.0 F)
1940
32.8 C (91.0 F)
1941
33.9 C (93.0 F)
1949
35.0 C (95.0 F)
1950
32.2 C (90.0 F)
1951
30.0 C (86.0 F)
1952
33.9 C (93.0 F)
1953
35.0 C (95.0 F)
1954
30.6 C (87.1 F)
1955
35.6 C (96.1 F)
1956
32.8 C (91.0 F)
1957
33.9 C (93.0 F)
1958
31.1 C (88.0 F)
1959
35.0 C (95.0 F)
1960
32.2 C (90.0 F)
1961
31.7 C (89.1 F)
1962
33.3 C (91.9 F)
1963
35.0 C (95.0 F)
1964
35.0 C (95.0 F)
1965
33.9 C (93.0 F)
1966
33.9 C (93.0 F)
1967
31.7 C (89.1 F)
1968
33.9 C (93.0 F)
1969
33.3 C (91.9 F)
1970
33.9 C (93.0 F)
1971
34.4 C (93.9 F)
1972
31.7 C (89.1 F)
1973
31.7 C (89.1 F)
1974
31.1 C (88.0 F)
1975
35.6 C (96.1 F)
1976
31.7 C (89.1 F)
1977
33.2 C (91.8 F)
1978
32.9 C (91.2 F)
1979
32.7 C (90.9 F)
1980
31.6 C (88.9 F)
1981
32.4 C (90.3 F)
1982
33.7 C (92.7 F)
1983
34.7 C (94.5 F)
Coldest night (TNn)
The coldest night of the year at Montreal/St-Hubert A, 1928 to 1983. The record is -37.2 C (-35.0 F) in 1933, marked on the chart; the median year is -30.0 C (-22.0 F).
Coldest night (TNn) at Montreal/St-Hubert A by year
Year
Coldest night (TNn)
1928
-18.3 C (-0.9 F)
1929
-30.0 C (-22.0 F)
1930
-31.1 C (-24.0 F)
1931
-36.1 C (-33.0 F)
1932
-29.4 C (-20.9 F)
1933
-37.2 C (-35.0 F)
1934
-37.2 C (-35.0 F)
1935
-30.6 C (-23.1 F)
1936
-29.4 C (-20.9 F)
1937
-28.9 C (-20.0 F)
1938
-36.1 C (-33.0 F)
1939
-27.8 C (-18.0 F)
1940
-31.1 C (-24.0 F)
1941
-28.3 C (-18.9 F)
1949
-22.8 C (-9.0 F)
1950
-28.9 C (-20.0 F)
1951
-33.3 C (-27.9 F)
1952
-30.0 C (-22.0 F)
1953
-24.4 C (-11.9 F)
1954
-30.0 C (-22.0 F)
1955
-30.0 C (-22.0 F)
1956
-25.0 C (-13.0 F)
1957
-35.0 C (-31.0 F)
1958
-26.7 C (-16.1 F)
1959
-30.0 C (-22.0 F)
1960
-28.9 C (-20.0 F)
1961
-26.7 C (-16.1 F)
1962
-32.8 C (-27.0 F)
1963
-33.9 C (-29.0 F)
1964
-27.2 C (-17.0 F)
1965
-28.9 C (-20.0 F)
1966
-28.9 C (-20.0 F)
1967
-30.6 C (-23.1 F)
1968
-29.4 C (-20.9 F)
1969
-24.4 C (-11.9 F)
1970
-27.8 C (-18.0 F)
1971
-30.6 C (-23.1 F)
1972
-30.6 C (-23.1 F)
1973
-30.6 C (-23.1 F)
1974
-31.1 C (-24.0 F)
1975
-30.6 C (-23.1 F)
1976
-34.4 C (-29.9 F)
1977
-27.4 C (-17.3 F)
1978
-28.4 C (-19.1 F)
1979
-29.2 C (-20.6 F)
1980
-30.6 C (-23.1 F)
1981
-32.9 C (-27.2 F)
1982
-31.3 C (-24.3 F)
1983
-27.6 C (-17.7 F)
Wettest day (Rx1day)
The wettest day of the year at Montreal/St-Hubert A, 1928 to 1983. The record is 77.7 mm (3.1 in) in 1929, marked on the chart; the median year is 42.9 mm (1.7 in).
Wettest day (Rx1day) at Montreal/St-Hubert A by year
Year
Wettest day (Rx1day)
1928
30.2 mm (1.2 in)
1929
77.7 mm (3.1 in)
1930
40.6 mm (1.6 in)
1931
27.9 mm (1.1 in)
1932
67.3 mm (2.6 in)
1933
53.6 mm (2.1 in)
1934
41.9 mm (1.6 in)
1935
29.5 mm (1.2 in)
1936
31.8 mm (1.3 in)
1937
36.1 mm (1.4 in)
1938
49.3 mm (1.9 in)
1939
38.9 mm (1.5 in)
1940
44.7 mm (1.8 in)
1941
28.2 mm (1.1 in)
1949
49.8 mm (2.0 in)
1950
46.2 mm (1.8 in)
1951
41.9 mm (1.6 in)
1952
63.8 mm (2.5 in)
1953
39.9 mm (1.6 in)
1954
74.4 mm (2.9 in)
1955
34.8 mm (1.4 in)
1956
36.6 mm (1.4 in)
1957
53.8 mm (2.1 in)
1958
73.4 mm (2.9 in)
1959
29.7 mm (1.2 in)
1960
34.3 mm (1.4 in)
1961
59.4 mm (2.3 in)
1962
34.8 mm (1.4 in)
1963
64.5 mm (2.5 in)
1964
32.5 mm (1.3 in)
1965
57.7 mm (2.3 in)
1966
38.4 mm (1.5 in)
1967
47.5 mm (1.9 in)
1968
41.1 mm (1.6 in)
1969
58.7 mm (2.3 in)
1970
35.8 mm (1.4 in)
1971
52.3 mm (2.1 in)
1972
44.2 mm (1.7 in)
1973
42.4 mm (1.7 in)
1974
72.1 mm (2.8 in)
1975
60.5 mm (2.4 in)
1976
40.6 mm (1.6 in)
1977
27.3 mm (1.1 in)
1978
35.0 mm (1.4 in)
1979
73.6 mm (2.9 in)
1980
64.6 mm (2.5 in)
1981
42.9 mm (1.7 in)
1982
67.2 mm (2.6 in)
1983
49.2 mm (1.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Montreal/St-Hubert A, 1928 to 1983. The record is 115.9 mm (4.6 in) in 1958, marked on the chart; the median year is 65.3 mm (2.6 in).
Wettest five days (Rx5day) at Montreal/St-Hubert A by year
Year
Wettest five days (Rx5day)
1928
65.0 mm (2.6 in)
1929
90.4 mm (3.6 in)
1930
66.0 mm (2.6 in)
1931
57.4 mm (2.3 in)
1932
107.5 mm (4.2 in)
1933
60.6 mm (2.4 in)
1934
63.5 mm (2.5 in)
1935
58.7 mm (2.3 in)
1936
63.5 mm (2.5 in)
1937
58.7 mm (2.3 in)
1938
71.9 mm (2.8 in)
1939
51.3 mm (2.0 in)
1940
50.5 mm (2.0 in)
1941
45.5 mm (1.8 in)
1949
89.2 mm (3.5 in)
1950
50.6 mm (2.0 in)
1951
61.5 mm (2.4 in)
1952
63.8 mm (2.5 in)
1953
56.7 mm (2.2 in)
1954
84.9 mm (3.3 in)
1955
67.8 mm (2.7 in)
1956
65.3 mm (2.6 in)
1957
79.3 mm (3.1 in)
1958
115.9 mm (4.6 in)
1959
57.9 mm (2.3 in)
1960
63.5 mm (2.5 in)
1961
71.7 mm (2.8 in)
1962
59.7 mm (2.4 in)
1963
64.5 mm (2.5 in)
1964
46.6 mm (1.8 in)
1965
74.6 mm (2.9 in)
1966
59.7 mm (2.4 in)
1967
94.3 mm (3.7 in)
1968
61.8 mm (2.4 in)
1969
97.9 mm (3.9 in)
1970
51.3 mm (2.0 in)
1971
76.4 mm (3.0 in)
1972
71.9 mm (2.8 in)
1973
91.2 mm (3.6 in)
1974
75.8 mm (3.0 in)
1975
75.8 mm (3.0 in)
1976
60.7 mm (2.4 in)
1977
50.0 mm (2.0 in)
1978
91.3 mm (3.6 in)
1979
83.2 mm (3.3 in)
1980
107.2 mm (4.2 in)
1981
75.7 mm (3.0 in)
1982
75.8 mm (3.0 in)
1983
92.6 mm (3.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Montreal/St-Hubert A, 1928 to 1983. The record is 24 days in 1941, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Montreal/St-Hubert A by year
Year
Longest dry spell (CDD)
1928
10 days
1929
14 days
1930
18 days
1931
12 days
1932
18 days
1933
13 days
1934
13 days
1935
13 days
1936
8 days
1937
15 days
1938
11 days
1939
18 days
1940
13 days
1941
24 days
1949
17 days
1950
17 days
1951
15 days
1952
19 days
1953
15 days
1954
9 days
1955
17 days
1956
15 days
1957
18 days
1958
10 days
1959
17 days
1960
15 days
1961
19 days
1962
15 days
1963
20 days
1964
16 days
1965
19 days
1966
11 days
1967
18 days
1968
19 days
1969
12 days
1970
17 days
1971
12 days
1972
13 days
1973
11 days
1974
13 days
1975
13 days
1976
12 days
1977
22 days
1978
23 days
1979
16 days
1980
23 days
1981
14 days
1982
11 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.
Frost Dates and Growing Season
46 years with a frost
Across 46 years with a frost, the median last spring frost at Montreal/St-Hubert A falls on 8 May and the median first autumn frost on 1 October, which leaves a median of 146 days between them.
Fitted over all years, the growing season changes by +1.5 days per decade at this station.
Frost dates and growing season at Montreal/St-Hubert A
Measure
Median, all years
Earliest period
Recent period (1954 to 1983)
Recent against earliest
Fitted trend
Last spring frost
8 May
n/a
7 May
n/a
-1.5 days per decade
First autumn frost
1 October
n/a
2 October
n/a
+0.1 days per decade
Growing days
146 days
n/a
148 days
n/a
+1.5 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
46 years, 1929 to 1983
A day with at least 45.8 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 93.8 mm (3.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Montreal/St-Hubert A: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
45.8 mm (1.8 in)
5 years
59.2 mm (2.3 in)
10 years
67.8 mm (2.7 in)
25 years
78.5 mm (3.1 in)
50 years
86.3 mm (3.4 in)
Longer than the 46 years of record
100 years
93.8 mm (3.7 in)
Longer than the 46 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, 46 years of values from 1929 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: 77.7 mm (3.1 in) in 1929; 74.4 mm (2.9 in) in 1954; 73.6 mm (2.9 in) in 1979.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Montreal/St-Hubert A, at 1955 and 1973. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1955 ran 0.3 C (0.5 F) higher than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1973 ran 0.4 C (0.7 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Montreal/St-Hubert A, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1955
+0.3
+0.5
likely
5
1973
-0.4
-0.7
likely
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Montreal/St-Hubert A standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Montreal/St-Hubert A 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.