Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Trois Pistoles. 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 Pistoles, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
10.0 C (50.0 F)
-34.4 C (-29.9 F)
n/a
n/a
Feb
10.5 C (50.9 F)
-31.7 C (-25.1 F)
n/a
n/a
Mar
17.8 C (64.0 F)
-25.0 C (-13.0 F)
n/a
n/a
Apr
20.0 C (68.0 F)
-16.1 C (3.0 F)
n/a
n/a
May
31.7 C (89.1 F)
-7.2 C (19.0 F)
n/a
n/a
Jun
31.1 C (88.0 F)
1.1 C (34.0 F)
n/a
n/a
Jul
35.0 C (95.0 F)
3.3 C (37.9 F)
n/a
n/a
Aug
33.9 C (93.0 F)
1.7 C (35.1 F)
n/a
n/a
Sep
29.4 C (84.9 F)
-2.8 C (27.0 F)
n/a
n/a
Oct
23.3 C (73.9 F)
-7.8 C (18.0 F)
n/a
n/a
Nov
18.9 C (66.0 F)
-16.7 C (1.9 F)
n/a
n/a
Dec
15.0 C (59.0 F)
-27.5 C (-17.5 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Trois Pistoles still stand. 1972 holds the most, with 76.
Standing records at Trois Pistoles by the year they were set
Year set
Standing records
1951
36
1952
30
1953
58
1954
47
1955
29
1956
37
1957
48
1958
31
1959
50
1960
35
1961
45
1962
49
1963
65
1964
45
1965
39
1966
44
1967
48
1968
46
1969
41
1970
39
1971
40
1972
76
1973
45
1974
38
1975
44
1976
49
1977
46
1978
43
1979
60
1980
36
1981
47
1982
47
1983
31
Wettest Day of Each Month
Oct: 78.7 mm (3.1 in)
The wettest day on record for each calendar month at Trois Pistoles. The most was 78.7 mm (3.1 in) on 3 October 1952.
Record daily precipitation for each month at Trois Pistoles
Month
Record daily precipitation (mm)
Date
Jan
41.9 mm (1.6 in)
28 January 1966
Feb
61.0 mm (2.4 in)
12 February 1952
Mar
58.7 mm (2.3 in)
20 March 1975
Apr
43.9 mm (1.7 in)
1 April 1976
May
44.7 mm (1.8 in)
6 May 1970
Jun
44.2 mm (1.7 in)
14 June 1959
Jul
38.1 mm (1.5 in)
28 July 1969
Aug
64.5 mm (2.5 in)
28 August 1971
Sep
55.1 mm (2.2 in)
11 September 1954
Oct
78.7 mm (3.1 in)
3 October 1952
Nov
43.4 mm (1.7 in)
21 November 1954
Dec
45.2 mm (1.8 in)
16 December 1960
Period of Record Coverage
1951 to 1983
Complete yearUnder 90 percent of days
33 years of record at Trois Pistoles, 1951 to 1983. 1 years have data for under 90 percent of days and are left out of rankings: 1951.
Cooler than the station meanWarmer than the station mean
One stripe for each of 32 complete years at Trois Pistoles, 1952 to 1983. Blue stripes are years cooler than the station's own mean of 3.6 C (38.6 F); red stripes are warmer. The coolest year was 1972, at 2.2 C (36.0 F), and the warmest was 1953, at 4.8 C (40.6 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Trois Pistoles as warming stripes, 1952 to 1983
Year
Annual mean temperature
Difference from the station mean
1952
4.5 C
+0.83 C
1953
4.8 C
+1.12 C
1954
3.6 C
-0.01 C
1955
3.6 C
-0.09 C
1956
3.0 C
-0.65 C
1957
3.5 C
-0.18 C
1958
3.3 C
-0.36 C
1959
3.3 C
-0.39 C
1960
4.1 C
+0.41 C
1961
3.7 C
+0.05 C
1962
3.1 C
-0.51 C
1963
3.5 C
-0.17 C
1964
3.4 C
-0.24 C
1965
3.0 C
-0.66 C
1966
4.6 C
+0.91 C
1967
3.5 C
-0.16 C
1968
3.5 C
-0.18 C
1969
4.2 C
+0.54 C
1970
3.7 C
+0.02 C
1971
3.5 C
-0.14 C
1972
2.2 C
-1.44 C
1973
4.5 C
+0.83 C
1974
3.2 C
-0.40 C
1975
4.3 C
+0.62 C
1976
3.1 C
-0.50 C
1977
3.8 C
+0.20 C
1978
2.9 C
-0.77 C
1979
4.4 C
+0.79 C
1980
3.2 C
-0.44 C
1981
4.7 C
+1.01 C
1982
3.0 C
-0.60 C
1983
4.2 C
+0.53 C
The fitted trend in annual mean temperature here over 1952 to 1983 is -0.01 C (-0.26 to 0.23) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.02 F (-0.46 to 0.41) per decade. The slope is a straight line fitted to 32 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Trois Pistoles
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.01 C (-0.26 to 0.23) per decade
-0.02 F (-0.46 to 0.41) per decade
1952 to 1983
32
Not clearly different from zero
Mean daily maximum
-0.1 C (-0.4 to 0.1) per decade
-0.2 F (-0.6 to 0.1) per decade
1952 to 1983
32
Not clearly different from zero
Mean daily minimum
0.1 C (-0.2 to 0.4) per decade
0.2 F (-0.3 to 0.7) per decade
1952 to 1983
32
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
1951 to 1983
Yearly extremes at Trois Pistoles: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
35.0 C (95.0 F)
1953
31.1 C (88.0 F)
33
Coldest night (TNn)
-34.4 C (-29.9 F)
1957
-27.2 C (-17.0 F)
33
Wettest day (Rx1day)
78.7 mm (3.1 in)
1952
41.0 mm (1.6 in)
33
Wettest five days (Rx5day)
152.2 mm (6.0 in)
1952
67.6 mm (2.7 in)
33
Longest dry spell (CDD)
23 days
1965
13 days
33
Hottest day (TXx)
The hottest day of the year at Trois Pistoles, 1951 to 1983. The record is 35.0 C (95.0 F) in 1953, marked on the chart; the median year is 31.1 C (88.0 F).
Hottest day (TXx) at Trois Pistoles by year
Year
Hottest day (TXx)
1951
28.3 C (82.9 F)
1952
32.8 C (91.0 F)
1953
35.0 C (95.0 F)
1954
29.4 C (84.9 F)
1955
32.8 C (91.0 F)
1956
29.4 C (84.9 F)
1957
28.3 C (82.9 F)
1958
29.4 C (84.9 F)
1959
33.3 C (91.9 F)
1960
32.2 C (90.0 F)
1961
30.6 C (87.1 F)
1962
27.8 C (82.0 F)
1963
31.1 C (88.0 F)
1964
31.1 C (88.0 F)
1965
30.6 C (87.1 F)
1966
29.4 C (84.9 F)
1967
31.1 C (88.0 F)
1968
31.1 C (88.0 F)
1969
30.6 C (87.1 F)
1970
31.1 C (88.0 F)
1971
30.0 C (86.0 F)
1972
31.7 C (89.1 F)
1973
30.6 C (87.1 F)
1974
31.7 C (89.1 F)
1975
33.9 C (93.0 F)
1976
30.6 C (87.1 F)
1977
31.7 C (89.1 F)
1978
32.2 C (90.0 F)
1979
31.7 C (89.1 F)
1980
27.5 C (81.5 F)
1981
28.0 C (82.4 F)
1982
30.0 C (86.0 F)
1983
34.5 C (94.1 F)
Coldest night (TNn)
The coldest night of the year at Trois Pistoles, 1951 to 1983. The record is -34.4 C (-29.9 F) in 1957, marked on the chart; the median year is -27.2 C (-17.0 F).
Coldest night (TNn) at Trois Pistoles by year
Year
Coldest night (TNn)
1951
-25.0 C (-13.0 F)
1952
-26.7 C (-16.1 F)
1953
-25.0 C (-13.0 F)
1954
-31.1 C (-24.0 F)
1955
-30.0 C (-22.0 F)
1956
-24.4 C (-11.9 F)
1957
-34.4 C (-29.9 F)
1958
-24.4 C (-11.9 F)
1959
-26.7 C (-16.1 F)
1960
-26.1 C (-15.0 F)
1961
-26.1 C (-15.0 F)
1962
-29.4 C (-20.9 F)
1963
-27.8 C (-18.0 F)
1964
-22.2 C (-8.0 F)
1965
-28.3 C (-18.9 F)
1966
-25.6 C (-14.1 F)
1967
-31.7 C (-25.1 F)
1968
-28.3 C (-18.9 F)
1969
-20.0 C (-4.0 F)
1970
-26.7 C (-16.1 F)
1971
-27.2 C (-17.0 F)
1972
-27.8 C (-18.0 F)
1973
-28.3 C (-18.9 F)
1974
-26.1 C (-15.0 F)
1975
-28.3 C (-18.9 F)
1976
-28.9 C (-20.0 F)
1977
-26.7 C (-16.1 F)
1978
-25.0 C (-13.0 F)
1979
-27.8 C (-18.0 F)
1980
-27.5 C (-17.5 F)
1981
-30.5 C (-22.9 F)
1982
-32.0 C (-25.6 F)
1983
-25.0 C (-13.0 F)
Wettest day (Rx1day)
The wettest day of the year at Trois Pistoles, 1951 to 1983. The record is 78.7 mm (3.1 in) in 1952, marked on the chart; the median year is 41.0 mm (1.6 in).
Wettest day (Rx1day) at Trois Pistoles by year
Year
Wettest day (Rx1day)
1951
42.7 mm (1.7 in)
1952
78.7 mm (3.1 in)
1953
35.1 mm (1.4 in)
1954
55.1 mm (2.2 in)
1955
34.3 mm (1.4 in)
1956
27.4 mm (1.1 in)
1957
27.2 mm (1.1 in)
1958
36.6 mm (1.4 in)
1959
44.2 mm (1.7 in)
1960
49.0 mm (1.9 in)
1961
35.6 mm (1.4 in)
1962
35.6 mm (1.4 in)
1963
50.5 mm (2.0 in)
1964
36.6 mm (1.4 in)
1965
27.4 mm (1.1 in)
1966
41.9 mm (1.6 in)
1967
31.2 mm (1.2 in)
1968
46.5 mm (1.8 in)
1969
38.1 mm (1.5 in)
1970
48.0 mm (1.9 in)
1971
64.5 mm (2.5 in)
1972
43.9 mm (1.7 in)
1973
60.7 mm (2.4 in)
1974
28.4 mm (1.1 in)
1975
58.7 mm (2.3 in)
1976
57.4 mm (2.3 in)
1977
34.3 mm (1.4 in)
1978
39.9 mm (1.6 in)
1979
33.3 mm (1.3 in)
1980
45.6 mm (1.8 in)
1981
52.7 mm (2.1 in)
1982
41.0 mm (1.6 in)
1983
32.0 mm (1.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Trois Pistoles, 1951 to 1983. The record is 152.2 mm (6.0 in) in 1952, marked on the chart; the median year is 67.6 mm (2.7 in).
Wettest five days (Rx5day) at Trois Pistoles by year
Year
Wettest five days (Rx5day)
1951
63.4 mm (2.5 in)
1952
152.2 mm (6.0 in)
1953
67.6 mm (2.7 in)
1954
71.6 mm (2.8 in)
1955
83.8 mm (3.3 in)
1956
33.7 mm (1.3 in)
1957
54.2 mm (2.1 in)
1958
75.1 mm (3.0 in)
1959
65.6 mm (2.6 in)
1960
69.3 mm (2.7 in)
1961
53.4 mm (2.1 in)
1962
62.2 mm (2.4 in)
1963
56.6 mm (2.2 in)
1964
76.0 mm (3.0 in)
1965
51.6 mm (2.0 in)
1966
78.2 mm (3.1 in)
1967
55.1 mm (2.2 in)
1968
53.9 mm (2.1 in)
1969
99.8 mm (3.9 in)
1970
69.4 mm (2.7 in)
1971
84.3 mm (3.3 in)
1972
67.3 mm (2.6 in)
1973
78.7 mm (3.1 in)
1974
62.4 mm (2.5 in)
1975
67.1 mm (2.6 in)
1976
96.2 mm (3.8 in)
1977
63.5 mm (2.5 in)
1978
69.3 mm (2.7 in)
1979
57.2 mm (2.3 in)
1980
65.2 mm (2.6 in)
1981
94.2 mm (3.7 in)
1982
68.2 mm (2.7 in)
1983
73.8 mm (2.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Trois Pistoles, 1951 to 1983. The record is 23 days in 1965, marked on the chart; the median year is 13 days.
Longest dry spell (CDD) at Trois Pistoles by year
Year
Longest dry spell (CDD)
1951
15 days
1952
14 days
1953
19 days
1954
14 days
1955
12 days
1956
15 days
1957
18 days
1958
16 days
1959
10 days
1960
15 days
1961
20 days
1962
19 days
1963
14 days
1964
13 days
1965
23 days
1966
9 days
1967
13 days
1968
13 days
1969
12 days
1970
11 days
1971
11 days
1972
11 days
1973
11 days
1974
10 days
1975
16 days
1976
14 days
1977
12 days
1978
8 days
1979
15 days
1980
9 days
1981
13 days
1982
12 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
32 years with a frost
Across 32 years with a frost, the median last spring frost at Trois Pistoles falls on 15 May and the median first autumn frost on 29 September, which leaves a median of 138 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 Trois Pistoles
Measure
Median, all years
Earliest period
Recent period (1954 to 1983)
Recent against earliest
Fitted trend
Last spring frost
15 May
n/a
15 May
n/a
-0.1 days per decade
First autumn frost
29 September
n/a
29 September
n/a
+1.4 days per decade
Growing days
138 days
n/a
138 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
32 years, 1952 to 1983
A day with at least 40.5 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 85.2 mm (3.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Trois Pistoles: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
40.5 mm (1.6 in)
5 years
51.6 mm (2.0 in)
10 years
59.3 mm (2.3 in)
25 years
69.4 mm (2.7 in)
50 years
77.2 mm (3.0 in)
Longer than the 32 years of record
100 years
85.2 mm (3.4 in)
Longer than the 32 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, 32 years of values from 1952 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: 78.7 mm (3.1 in) in 1952; 64.5 mm (2.5 in) in 1971; 60.7 mm (2.4 in) in 1973.
Download the Data
Data for Trois Pistoles standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Trois Pistoles 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.