Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Lac Bouchette. 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 Lac Bouchette, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
8.9 C (48.0 F)
-47.8 C (-54.0 F)
n/a
n/a
Feb
11.1 C (52.0 F)
-46.1 C (-51.0 F)
n/a
n/a
Mar
16.7 C (62.1 F)
-37.2 C (-35.0 F)
n/a
n/a
Apr
23.3 C (73.9 F)
-30.0 C (-22.0 F)
n/a
n/a
May
32.2 C (90.0 F)
-12.2 C (10.0 F)
n/a
n/a
Jun
32.2 C (90.0 F)
-9.4 C (15.1 F)
n/a
n/a
Jul
34.4 C (93.9 F)
-1.1 C (30.0 F)
n/a
n/a
Aug
36.1 C (97.0 F)
-1.1 C (30.0 F)
n/a
n/a
Sep
30.6 C (87.1 F)
-7.8 C (18.0 F)
n/a
n/a
Oct
26.1 C (79.0 F)
-15.0 C (5.0 F)
n/a
n/a
Nov
15.6 C (60.1 F)
-27.2 C (-17.0 F)
n/a
n/a
Dec
11.1 C (52.0 F)
-43.9 C (-47.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Lac Bouchette still stand. 1964 holds the most, with 71.
Standing records at Lac Bouchette by the year they were set
Year set
Standing records
1949
18
1950
67
1951
37
1952
33
1953
54
1954
43
1955
35
1956
56
1957
53
1958
36
1959
42
1960
20
1961
41
1962
30
1963
36
1964
71
1965
33
1966
44
1967
46
1968
62
1969
31
1970
49
1971
30
1972
44
1973
47
1974
44
1975
30
1976
45
1977
42
1978
35
1979
55
1980
27
1981
45
1982
43
1983
40
All-Time Record Progression
2 new records
2 all-time records were set at Lac Bouchette between 3 January 1981 and 22 June 1981. Each dot is a new record.
When Lac Bouchette set new all-time records
Date
Kind
Detail
1981-01-03
Record low maximum temperature
Record low maximum temperature -32.0 C (-25.6 F)
1981-06-22
Record daily precipitation
Record daily precipitation 92.8 mm (3.7 in)
Wettest Day of Each Month
Jun: 92.8 mm (3.7 in)
The wettest day on record for each calendar month at Lac Bouchette. The most was 92.8 mm (3.7 in) on 22 June 1981.
Record daily precipitation for each month at Lac Bouchette
Month
Record daily precipitation (mm)
Date
Jan
40.6 mm (1.6 in)
20 January 1951
Feb
38.1 mm (1.5 in)
13 February 1952
Mar
47.8 mm (1.9 in)
4 March 1971
Apr
26.2 mm (1.0 in)
22 April 1960
May
42.4 mm (1.7 in)
11 May 1981
Jun
92.8 mm (3.7 in)
22 June 1981
Jul
54.9 mm (2.2 in)
20 July 1970
Aug
53.3 mm (2.1 in)
31 August 1954
Sep
78.2 mm (3.1 in)
4 September 1970
Oct
44.2 mm (1.7 in)
24 October 1957
Nov
34.5 mm (1.4 in)
27 November 1965
Dec
60.7 mm (2.4 in)
17 December 1978
Period of Record Coverage
1949 to 1983
Complete yearUnder 90 percent of days
35 years of record at Lac Bouchette, 1949 to 1983. 5 years have data for under 90 percent of days and are left out of rankings: 1949, 1951, 1952, 1962, 1975.
Cooler than the station meanWarmer than the station mean
One stripe for each of 26 complete years at Lac Bouchette, 1953 to 1983. Blue stripes are years cooler than the station's own mean of 1.1 C (34.0 F); red stripes are warmer. The coolest year was 1972, at -0.4 C (31.4 F), and the warmest was 1981, at 3.0 C (37.4 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Lac Bouchette as warming stripes, 1953 to 1983
Year
Annual mean temperature
Difference from the station mean
1953
2.6 C
+1.51 C
1954
0.7 C
-0.45 C
1955
1.0 C
-0.11 C
1956
0.1 C
-0.99 C
1957
0.6 C
-0.56 C
1958
0.4 C
-0.70 C
1959
0.3 C
-0.84 C
1960
0.9 C
-0.25 C
1961
1.0 C
-0.17 C
1965
0.5 C
-0.65 C
1966
2.1 C
+1.00 C
1967
0.6 C
-0.56 C
1968
1.1 C
-0.07 C
1969
1.6 C
+0.43 C
1970
1.1 C
-0.04 C
1971
1.0 C
-0.12 C
1972
-0.4 C
-1.49 C
1973
2.3 C
+1.16 C
1974
0.3 C
-0.86 C
1976
0.6 C
-0.57 C
1977
1.9 C
+0.80 C
1978
0.6 C
-0.55 C
1979
2.1 C
+0.95 C
1981
3.0 C
+1.87 C
1982
1.2 C
+0.02 C
1983
2.3 C
+1.13 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
1949 to 1983
Yearly extremes at Lac Bouchette: 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
30.0 C (86.0 F)
35
Coldest night (TNn)
-47.8 C (-54.0 F)
1957
-40.6 C (-41.1 F)
35
Wettest day (Rx1day)
92.8 mm (3.7 in)
1981
40.4 mm (1.6 in)
35
Wettest five days (Rx5day)
119.0 mm (4.7 in)
1981
68.7 mm (2.7 in)
34
Longest dry spell (CDD)
28 days
1965
15 days
34
Hottest day (TXx)
The hottest day of the year at Lac Bouchette, 1949 to 1983. The record is 36.1 C (97.0 F) in 1975, marked on the chart; the median year is 30.0 C (86.0 F).
Hottest day (TXx) at Lac Bouchette by year
Year
Hottest day (TXx)
1949
26.7 C (80.1 F)
1950
32.2 C (90.0 F)
1951
29.4 C (84.9 F)
1952
32.2 C (90.0 F)
1953
34.4 C (93.9 F)
1954
29.4 C (84.9 F)
1955
32.8 C (91.0 F)
1956
32.2 C (90.0 F)
1957
29.4 C (84.9 F)
1958
27.8 C (82.0 F)
1959
30.0 C (86.0 F)
1960
30.6 C (87.1 F)
1961
30.0 C (86.0 F)
1962
29.4 C (84.9 F)
1963
31.7 C (89.1 F)
1964
29.4 C (84.9 F)
1965
28.3 C (82.9 F)
1966
28.9 C (84.0 F)
1967
30.6 C (87.1 F)
1968
31.7 C (89.1 F)
1969
28.3 C (82.9 F)
1970
30.6 C (87.1 F)
1971
28.3 C (82.9 F)
1972
29.4 C (84.9 F)
1973
29.4 C (84.9 F)
1974
29.4 C (84.9 F)
1975
36.1 C (97.0 F)
1976
32.8 C (91.0 F)
1977
31.7 C (89.1 F)
1978
32.2 C (90.0 F)
1979
30.0 C (86.0 F)
1980
29.0 C (84.2 F)
1981
30.0 C (86.0 F)
1982
30.0 C (86.0 F)
1983
32.0 C (89.6 F)
Coldest night (TNn)
The coldest night of the year at Lac Bouchette, 1949 to 1983. The record is -47.8 C (-54.0 F) in 1957, marked on the chart; the median year is -40.6 C (-41.1 F).
Coldest night (TNn) at Lac Bouchette by year
Year
Coldest night (TNn)
1949
-24.4 C (-11.9 F)
1950
-40.0 C (-40.0 F)
1951
-28.9 C (-20.0 F)
1952
-35.0 C (-31.0 F)
1953
-41.7 C (-43.1 F)
1954
-46.1 C (-51.0 F)
1955
-46.1 C (-51.0 F)
1956
-37.2 C (-35.0 F)
1957
-47.8 C (-54.0 F)
1958
-38.3 C (-36.9 F)
1959
-43.9 C (-47.0 F)
1960
-40.6 C (-41.1 F)
1961
-41.1 C (-42.0 F)
1962
-43.9 C (-47.0 F)
1963
-41.1 C (-42.0 F)
1964
-36.1 C (-33.0 F)
1965
-40.6 C (-41.1 F)
1966
-40.0 C (-40.0 F)
1967
-40.6 C (-41.1 F)
1968
-39.4 C (-38.9 F)
1969
-32.8 C (-27.0 F)
1970
-42.2 C (-44.0 F)
1971
-41.1 C (-42.0 F)
1972
-44.4 C (-47.9 F)
1973
-44.4 C (-47.9 F)
1974
-43.9 C (-47.0 F)
1975
-38.9 C (-38.0 F)
1976
-39.4 C (-38.9 F)
1977
-40.6 C (-41.1 F)
1978
-38.9 C (-38.0 F)
1979
-43.9 C (-47.0 F)
1980
-40.0 C (-40.0 F)
1981
-38.0 C (-36.4 F)
1982
-40.0 C (-40.0 F)
1983
-40.0 C (-40.0 F)
Wettest day (Rx1day)
The wettest day of the year at Lac Bouchette, 1949 to 1983. The record is 92.8 mm (3.7 in) in 1981, marked on the chart; the median year is 40.4 mm (1.6 in).
Wettest day (Rx1day) at Lac Bouchette by year
Year
Wettest day (Rx1day)
1949
6.4 mm (0.25 in)
1950
21.6 mm (0.9 in)
1951
45.7 mm (1.8 in)
1952
50.8 mm (2.0 in)
1953
35.3 mm (1.4 in)
1954
53.3 mm (2.1 in)
1955
46.5 mm (1.8 in)
1956
36.8 mm (1.4 in)
1957
53.3 mm (2.1 in)
1958
40.9 mm (1.6 in)
1959
40.4 mm (1.6 in)
1960
31.5 mm (1.2 in)
1961
39.6 mm (1.6 in)
1962
43.7 mm (1.7 in)
1963
41.9 mm (1.6 in)
1964
41.9 mm (1.6 in)
1965
34.5 mm (1.4 in)
1966
35.8 mm (1.4 in)
1967
52.1 mm (2.1 in)
1968
29.5 mm (1.2 in)
1969
35.8 mm (1.4 in)
1970
78.2 mm (3.1 in)
1971
47.8 mm (1.9 in)
1972
69.9 mm (2.8 in)
1973
33.5 mm (1.3 in)
1974
35.6 mm (1.4 in)
1975
41.7 mm (1.6 in)
1976
43.7 mm (1.7 in)
1977
28.4 mm (1.1 in)
1978
60.7 mm (2.4 in)
1979
35.1 mm (1.4 in)
1980
35.2 mm (1.4 in)
1981
92.8 mm (3.7 in)
1982
30.8 mm (1.2 in)
1983
37.6 mm (1.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Lac Bouchette, 1949 to 1983. The record is 119.0 mm (4.7 in) in 1981, marked on the chart; the median year is 68.7 mm (2.7 in).
Wettest five days (Rx5day) at Lac Bouchette by year
Year
Wettest five days (Rx5day)
1949
n/a
1950
56.3 mm (2.2 in)
1951
60.9 mm (2.4 in)
1952
96.5 mm (3.8 in)
1953
49.3 mm (1.9 in)
1954
68.6 mm (2.7 in)
1955
66.1 mm (2.6 in)
1956
54.4 mm (2.1 in)
1957
74.8 mm (2.9 in)
1958
76.2 mm (3.0 in)
1959
61.8 mm (2.4 in)
1960
67.4 mm (2.7 in)
1961
64.1 mm (2.5 in)
1962
86.4 mm (3.4 in)
1963
62.7 mm (2.5 in)
1964
77.6 mm (3.1 in)
1965
51.8 mm (2.0 in)
1966
68.5 mm (2.7 in)
1967
84.6 mm (3.3 in)
1968
70.4 mm (2.8 in)
1969
68.8 mm (2.7 in)
1970
107.7 mm (4.2 in)
1971
78.2 mm (3.1 in)
1972
88.1 mm (3.5 in)
1973
86.9 mm (3.4 in)
1974
68.9 mm (2.7 in)
1975
61.9 mm (2.4 in)
1976
96.5 mm (3.8 in)
1977
48.0 mm (1.9 in)
1978
87.9 mm (3.5 in)
1979
64.8 mm (2.6 in)
1980
48.4 mm (1.9 in)
1981
119.0 mm (4.7 in)
1982
74.2 mm (2.9 in)
1983
65.8 mm (2.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Lac Bouchette, 1949 to 1983. The record is 28 days in 1965, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Lac Bouchette by year
Year
Longest dry spell (CDD)
1949
n/a
1950
13 days
1951
20 days
1952
15 days
1953
16 days
1954
16 days
1955
11 days
1956
16 days
1957
19 days
1958
22 days
1959
21 days
1960
14 days
1961
15 days
1962
25 days
1963
12 days
1964
14 days
1965
28 days
1966
21 days
1967
13 days
1968
19 days
1969
15 days
1970
20 days
1971
11 days
1972
12 days
1973
11 days
1974
9 days
1975
12 days
1976
15 days
1977
10 days
1978
12 days
1979
15 days
1980
12 days
1981
16 days
1982
11 days
1983
10 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
26 years with a frost
Across 26 years with a frost, the median last spring frost at Lac Bouchette falls on 7 June and the median first autumn frost on 13 September, which leaves a median of 99 days between them.
Fitted over all years, the growing season changes by +9.9 days per decade at this station.
Frost dates and growing season at Lac Bouchette
Measure
Median, all years
Earliest period
Recent period (1953 to 1983)
Recent against earliest
Fitted trend
Last spring frost
7 June
n/a
7 June
n/a
-2.8 days per decade
First autumn frost
13 September
n/a
13 September
n/a
+7.1 days per decade
Growing days
99 days
n/a
99 days
n/a
+9.9 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
30 years, 1953 to 1983
A day with at least 39.4 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 111.4 mm (4.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Lac Bouchette: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
39.4 mm (1.6 in)
5 years
50.5 mm (2.0 in)
10 years
60.3 mm (2.4 in)
25 years
76.5 mm (3.0 in)
50 years
92.1 mm (3.6 in)
Longer than the 30 years of record
100 years
111.4 mm (4.4 in)
Longer than the 30 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, 30 years of values from 1953 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: 92.8 mm (3.7 in) in 1981; 78.2 mm (3.1 in) in 1970; 69.9 mm (2.8 in) in 1972.
Download the Data
Data for Lac Bouchette standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Lac Bouchette 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.