Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Trois Rivieres. 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 Trois Rivieres, 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)
-38.3 C (-36.9 F)
n/a
n/a
Feb
11.1 C (52.0 F)
-38.9 C (-38.0 F)
n/a
n/a
Mar
20.0 C (68.0 F)
-30.0 C (-22.0 F)
n/a
n/a
Apr
28.3 C (82.9 F)
-19.4 C (-2.9 F)
n/a
n/a
May
33.3 C (91.9 F)
-7.8 C (18.0 F)
n/a
n/a
Jun
34.4 C (93.9 F)
-1.1 C (30.0 F)
n/a
n/a
Jul
37.8 C (100.0 F)
3.9 C (39.0 F)
n/a
n/a
Aug
35.6 C (96.1 F)
0.0 C (32.0 F)
n/a
n/a
Sep
32.2 C (90.0 F)
-6.7 C (19.9 F)
n/a
n/a
Oct
28.9 C (84.0 F)
-11.7 C (10.9 F)
n/a
n/a
Nov
22.2 C (72.0 F)
-23.9 C (-11.0 F)
n/a
n/a
Dec
13.9 C (57.0 F)
-35.6 C (-32.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Trois Rivieres still stand. 1947 holds the most, with 56.
Standing records at Trois Rivieres by the year they were set
Year set
Standing records
1934
5
1935
34
1936
37
1937
31
1938
37
1939
23
1940
25
1941
24
1942
34
1943
26
1944
23
1945
39
1946
46
1947
56
1948
33
1949
45
1950
38
1951
37
1952
13
1953
28
1954
35
1955
18
1956
35
1957
36
1958
24
1959
34
1960
16
1961
26
1962
25
1963
27
1964
24
1965
33
1966
33
1967
27
1968
32
1969
22
1970
27
1971
23
1972
25
1973
17
1974
30
1975
19
1976
36
1977
34
1978
22
1979
42
1980
22
1981
39
1982
31
1983
16
All-Time Record Progression
4 new records
4 all-time records were set at Trois Rivieres between 12 February 1967 and 3 January 1981. Each dot is a new record.
When Trois Rivieres set new all-time records
Date
Kind
Detail
1967-02-12
Record low maximum temperature
Record low maximum temperature -24.4 C (-11.9 F)
1969-12-26
Record daily snowfall
Record daily snowfall 48.3 cm (19.0 in)
1976-01-23
Record low maximum temperature
Record low maximum temperature -25.0 C (-13.0 F)
1981-01-03
Record low maximum temperature
Record low maximum temperature -28.3 C (-18.9 F)
Wettest Day of Each Month
Aug: 110.5 mm (4.4 in)
The wettest day on record for each calendar month at Trois Rivieres. The most was 110.5 mm (4.4 in) on 22 August 1935.
Record daily precipitation for each month at Trois Rivieres
Month
Record daily precipitation (mm)
Date
Jan
51.4 mm (2.0 in)
8 January 1978
Feb
47.0 mm (1.9 in)
7 February 1951
Mar
44.5 mm (1.8 in)
19 March 1975
Apr
48.3 mm (1.9 in)
24 April 1968
May
38.5 mm (1.5 in)
11 May 1981
Jun
80.5 mm (3.2 in)
25 June 1957
Jul
66.8 mm (2.6 in)
11 July 1942
Aug
110.5 mm (4.4 in)
22 August 1935
Sep
79.8 mm (3.1 in)
14 September 1979
Oct
52.8 mm (2.1 in)
9 October 1976
Nov
47.0 mm (1.9 in)
9 November 1943
Dec
48.3 mm (1.9 in)
26 December 1969
Period of Record Coverage
1934 to 1983
Complete yearUnder 90 percent of days
50 years of record at Trois Rivieres, 1934 to 1983. 2 years have data for under 90 percent of days and are left out of rankings: 1934, 1981.
Cooler than the station meanWarmer than the station mean
One stripe for each of 45 complete years at Trois Rivieres, 1935 to 1983. Blue stripes are years cooler than the station's own mean of 4.9 C (40.9 F); red stripes are warmer. The coolest year was 1976, at 3.8 C (38.8 F), and the warmest was 1937, at 6.4 C (43.5 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Trois Rivieres as warming stripes, 1935 to 1983
Year
Annual mean temperature
Difference from the station mean
1935
4.7 C
-0.25 C
1936
4.8 C
-0.14 C
1937
6.4 C
+1.46 C
1938
6.0 C
+1.03 C
1939
5.0 C
+0.05 C
1940
4.6 C
-0.30 C
1941
5.5 C
+0.61 C
1942
6.1 C
+1.13 C
1943
4.5 C
-0.44 C
1944
5.6 C
+0.71 C
1945
5.4 C
+0.49 C
1946
4.7 C
-0.23 C
1947
4.5 C
-0.48 C
1948
4.7 C
-0.24 C
1949
5.8 C
+0.82 C
1950
4.6 C
-0.32 C
1951
4.4 C
-0.55 C
1952
5.1 C
+0.12 C
1953
5.9 C
+1.01 C
1954
4.3 C
-0.64 C
1955
4.8 C
-0.17 C
1956
4.0 C
-0.92 C
1957
4.9 C
-0.03 C
1958
3.9 C
-1.01 C
1959
4.5 C
-0.43 C
1960
5.3 C
+0.39 C
1961
5.0 C
+0.03 C
1963
4.3 C
-0.68 C
1964
5.1 C
+0.21 C
1965
4.5 C
-0.41 C
1966
5.3 C
+0.34 C
1967
4.2 C
-0.70 C
1968
4.5 C
-0.41 C
1969
5.3 C
+0.37 C
1970
4.6 C
-0.36 C
1971
4.6 C
-0.34 C
1973
5.8 C
+0.90 C
1974
4.4 C
-0.54 C
1975
5.5 C
+0.53 C
1976
3.8 C
-1.13 C
1977
5.4 C
+0.42 C
1978
4.4 C
-0.55 C
1980
4.5 C
-0.44 C
1982
4.8 C
-0.10 C
1983
6.0 C
+1.05 C
The fitted trend in annual mean temperature here over 1935 to 1983 is -0.09 C (-0.23 to 0.04) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.2 F (-0.4 to 0.1) per decade. The slope is a straight line fitted to 45 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Trois Rivieres
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.09 C (-0.23 to 0.04) per decade
-0.2 F (-0.4 to 0.1) per decade
1935 to 1983
45
Not clearly different from zero
Mean daily maximum
-0.2 C (-0.3 to -0.1) per decade
-0.4 F (-0.6 to -0.1) per decade
1935 to 1983
45
Fall
Mean daily minimum
0.01 C (-0.17 to 0.20) per decade
0.02 F (-0.31 to 0.36) per decade
1935 to 1983
45
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
1934 to 1983
Yearly extremes at Trois Rivieres: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
37.8 C (100.0 F)
1953
33.3 C (91.9 F)
50
Coldest night (TNn)
-38.9 C (-38.0 F)
1951
-33.0 C (-27.5 F)
50
Wettest day (Rx1day)
110.5 mm (4.4 in)
1935
47.0 mm (1.9 in)
50
Wettest five days (Rx5day)
129.0 mm (5.1 in)
1977
72.0 mm (2.8 in)
50
Longest dry spell (CDD)
32 days
1961
15 days
50
Hottest day (TXx)
The hottest day of the year at Trois Rivieres, 1934 to 1983. The record is 37.8 C (100.0 F) in 1953, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at Trois Rivieres by year
Year
Hottest day (TXx)
1934
14.4 C (57.9 F)
1935
33.9 C (93.0 F)
1936
31.7 C (89.1 F)
1937
33.3 C (91.9 F)
1938
34.4 C (93.9 F)
1939
33.3 C (91.9 F)
1940
31.7 C (89.1 F)
1941
34.4 C (93.9 F)
1942
33.3 C (91.9 F)
1943
33.3 C (91.9 F)
1944
35.6 C (96.1 F)
1945
35.0 C (95.0 F)
1946
33.9 C (93.0 F)
1947
35.6 C (96.1 F)
1948
34.4 C (93.9 F)
1949
35.6 C (96.1 F)
1950
33.3 C (91.9 F)
1951
31.1 C (88.0 F)
1952
33.3 C (91.9 F)
1953
37.8 C (100.0 F)
1954
30.6 C (87.1 F)
1955
36.1 C (97.0 F)
1956
32.2 C (90.0 F)
1957
31.7 C (89.1 F)
1958
29.4 C (84.9 F)
1959
33.3 C (91.9 F)
1960
31.7 C (89.1 F)
1961
30.6 C (87.1 F)
1962
33.3 C (91.9 F)
1963
34.4 C (93.9 F)
1964
33.9 C (93.0 F)
1965
31.1 C (88.0 F)
1966
33.3 C (91.9 F)
1967
30.6 C (87.1 F)
1968
35.0 C (95.0 F)
1969
31.7 C (89.1 F)
1970
33.3 C (91.9 F)
1971
33.3 C (91.9 F)
1972
31.1 C (88.0 F)
1973
31.7 C (89.1 F)
1974
30.6 C (87.1 F)
1975
35.6 C (96.1 F)
1976
31.1 C (88.0 F)
1977
32.8 C (91.0 F)
1978
32.2 C (90.0 F)
1979
31.7 C (89.1 F)
1980
31.1 C (88.0 F)
1981
34.5 C (94.1 F)
1982
32.0 C (89.6 F)
1983
33.5 C (92.3 F)
Coldest night (TNn)
The coldest night of the year at Trois Rivieres, 1934 to 1983. The record is -38.9 C (-38.0 F) in 1951, marked on the chart; the median year is -33.0 C (-27.5 F).
Coldest night (TNn) at Trois Rivieres by year
Year
Coldest night (TNn)
1934
-24.4 C (-11.9 F)
1935
-31.7 C (-25.1 F)
1936
-29.4 C (-20.9 F)
1937
-24.4 C (-11.9 F)
1938
-30.0 C (-22.0 F)
1939
-27.2 C (-17.0 F)
1940
-28.9 C (-20.0 F)
1941
-28.3 C (-18.9 F)
1942
-31.1 C (-24.0 F)
1943
-31.7 C (-25.1 F)
1944
-29.4 C (-20.9 F)
1945
-32.2 C (-26.0 F)
1946
-34.4 C (-29.9 F)
1947
-32.2 C (-26.0 F)
1948
-35.6 C (-32.1 F)
1949
-30.6 C (-23.1 F)
1950
-31.7 C (-25.1 F)
1951
-38.9 C (-38.0 F)
1952
-35.6 C (-32.1 F)
1953
-28.3 C (-18.9 F)
1954
-32.8 C (-27.0 F)
1955
-33.3 C (-27.9 F)
1956
-31.7 C (-25.1 F)
1957
-38.3 C (-36.9 F)
1958
-33.3 C (-27.9 F)
1959
-36.1 C (-33.0 F)
1960
-37.2 C (-35.0 F)
1961
-34.4 C (-29.9 F)
1962
-38.9 C (-38.0 F)
1963
-35.6 C (-32.1 F)
1964
-31.7 C (-25.1 F)
1965
-33.3 C (-27.9 F)
1966
-34.4 C (-29.9 F)
1967
-35.6 C (-32.1 F)
1968
-35.6 C (-32.1 F)
1969
-27.8 C (-18.0 F)
1970
-35.6 C (-32.1 F)
1971
-36.7 C (-34.1 F)
1972
-37.2 C (-35.0 F)
1973
-35.0 C (-31.0 F)
1974
-32.8 C (-27.0 F)
1975
-35.0 C (-31.0 F)
1976
-37.8 C (-36.0 F)
1977
-31.7 C (-25.1 F)
1978
-31.1 C (-24.0 F)
1979
-33.9 C (-29.0 F)
1980
-32.8 C (-27.0 F)
1981
-35.6 C (-32.1 F)
1982
-37.0 C (-34.6 F)
1983
-30.5 C (-22.9 F)
Wettest day (Rx1day)
The wettest day of the year at Trois Rivieres, 1934 to 1983. The record is 110.5 mm (4.4 in) in 1935, marked on the chart; the median year is 47.0 mm (1.9 in).
Wettest day (Rx1day) at Trois Rivieres by year
Year
Wettest day (Rx1day)
1934
20.3 mm (0.8 in)
1935
110.5 mm (4.4 in)
1936
51.6 mm (2.0 in)
1937
80.0 mm (3.1 in)
1938
56.4 mm (2.2 in)
1939
36.8 mm (1.4 in)
1940
47.0 mm (1.9 in)
1941
40.6 mm (1.6 in)
1942
66.8 mm (2.6 in)
1943
47.0 mm (1.9 in)
1944
45.7 mm (1.8 in)
1945
58.2 mm (2.3 in)
1946
53.3 mm (2.1 in)
1947
33.8 mm (1.3 in)
1948
34.3 mm (1.4 in)
1949
49.0 mm (1.9 in)
1950
31.2 mm (1.2 in)
1951
47.0 mm (1.9 in)
1952
44.5 mm (1.8 in)
1953
31.8 mm (1.3 in)
1954
56.1 mm (2.2 in)
1955
61.2 mm (2.4 in)
1956
31.8 mm (1.3 in)
1957
80.5 mm (3.2 in)
1958
35.6 mm (1.4 in)
1959
39.1 mm (1.5 in)
1960
75.7 mm (3.0 in)
1961
50.8 mm (2.0 in)
1962
44.2 mm (1.7 in)
1963
45.2 mm (1.8 in)
1964
33.8 mm (1.3 in)
1965
44.7 mm (1.8 in)
1966
96.5 mm (3.8 in)
1967
40.6 mm (1.6 in)
1968
48.3 mm (1.9 in)
1969
48.3 mm (1.9 in)
1970
38.4 mm (1.5 in)
1971
44.5 mm (1.8 in)
1972
40.6 mm (1.6 in)
1973
54.9 mm (2.2 in)
1974
41.1 mm (1.6 in)
1975
54.1 mm (2.1 in)
1976
52.8 mm (2.1 in)
1977
49.3 mm (1.9 in)
1978
51.4 mm (2.0 in)
1979
79.8 mm (3.1 in)
1980
39.9 mm (1.6 in)
1981
60.6 mm (2.4 in)
1982
42.1 mm (1.7 in)
1983
41.4 mm (1.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Trois Rivieres, 1934 to 1983. The record is 129.0 mm (5.1 in) in 1977, marked on the chart; the median year is 72.0 mm (2.8 in).
Wettest five days (Rx5day) at Trois Rivieres by year
Year
Wettest five days (Rx5day)
1934
53.9 mm (2.1 in)
1935
110.5 mm (4.4 in)
1936
74.2 mm (2.9 in)
1937
89.2 mm (3.5 in)
1938
80.8 mm (3.2 in)
1939
65.2 mm (2.6 in)
1940
54.2 mm (2.1 in)
1941
55.1 mm (2.2 in)
1942
84.1 mm (3.3 in)
1943
60.2 mm (2.4 in)
1944
72.3 mm (2.8 in)
1945
87.4 mm (3.4 in)
1946
80.7 mm (3.2 in)
1947
68.6 mm (2.7 in)
1948
85.0 mm (3.3 in)
1949
92.7 mm (3.6 in)
1950
54.6 mm (2.1 in)
1951
98.8 mm (3.9 in)
1952
58.2 mm (2.3 in)
1953
53.6 mm (2.1 in)
1954
80.3 mm (3.2 in)
1955
120.3 mm (4.7 in)
1956
45.2 mm (1.8 in)
1957
123.6 mm (4.9 in)
1958
49.5 mm (1.9 in)
1959
52.8 mm (2.1 in)
1960
77.2 mm (3.0 in)
1961
69.6 mm (2.7 in)
1962
53.1 mm (2.1 in)
1963
58.4 mm (2.3 in)
1964
51.1 mm (2.0 in)
1965
62.2 mm (2.4 in)
1966
103.4 mm (4.1 in)
1967
76.2 mm (3.0 in)
1968
70.2 mm (2.8 in)
1969
99.8 mm (3.9 in)
1970
65.3 mm (2.6 in)
1971
71.7 mm (2.8 in)
1972
79.1 mm (3.1 in)
1973
83.3 mm (3.3 in)
1974
65.7 mm (2.6 in)
1975
66.6 mm (2.6 in)
1976
72.4 mm (2.9 in)
1977
129.0 mm (5.1 in)
1978
70.6 mm (2.8 in)
1979
96.8 mm (3.8 in)
1980
50.5 mm (2.0 in)
1981
88.5 mm (3.5 in)
1982
68.1 mm (2.7 in)
1983
91.2 mm (3.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Trois Rivieres, 1934 to 1983. The record is 32 days in 1961, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Trois Rivieres by year
Year
Longest dry spell (CDD)
1934
8 days
1935
15 days
1936
11 days
1937
11 days
1938
18 days
1939
25 days
1940
11 days
1941
25 days
1942
13 days
1943
18 days
1944
13 days
1945
17 days
1946
10 days
1947
15 days
1948
16 days
1949
14 days
1950
16 days
1951
15 days
1952
10 days
1953
17 days
1954
10 days
1955
16 days
1956
12 days
1957
16 days
1958
15 days
1959
11 days
1960
15 days
1961
32 days
1962
14 days
1963
14 days
1964
14 days
1965
20 days
1966
12 days
1967
16 days
1968
12 days
1969
14 days
1970
21 days
1971
10 days
1972
13 days
1973
14 days
1974
15 days
1975
18 days
1976
9 days
1977
15 days
1978
18 days
1979
18 days
1980
16 days
1981
13 days
1982
12 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
45 years with a frost
Across 45 years with a frost, the median last spring frost at Trois Rivieres falls on 17 May and the median first autumn frost on 26 September, which leaves a median of 134 days between them.
Fitted over all years, the growing season changes by 0.0 days per decade at this station.
Frost dates and growing season at Trois Rivieres
Measure
Median, all years
Earliest period
Recent period (1950 to 1983)
Recent against earliest
Fitted trend
Last spring frost
17 May
n/a
21 May
n/a
+1.2 days per decade
First autumn frost
26 September
n/a
24 September
n/a
+1.2 days per decade
Growing days
134 days
n/a
130 days
n/a
0.0 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
49 years, 1935 to 1983
A day with at least 46.5 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 116.1 mm (4.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Trois Rivieres: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
46.5 mm (1.8 in)
5 years
59.9 mm (2.4 in)
10 years
70.6 mm (2.8 in)
25 years
86.5 mm (3.4 in)
50 years
100.3 mm (3.9 in)
Longer than the 49 years of record
100 years
116.1 mm (4.6 in)
Longer than the 49 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, 49 years of values from 1935 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: 110.5 mm (4.4 in) in 1935; 96.5 mm (3.8 in) in 1966; 80.5 mm (3.2 in) in 1957.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Trois Rivieres standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Trois Rivieres 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.