Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Stanstead. 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 Stanstead, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.2 C (63.0 F)
-39.4 C (-38.9 F)
n/a
n/a
Feb
15.0 C (59.0 F)
-35.0 C (-31.0 F)
n/a
n/a
Mar
22.8 C (73.0 F)
-31.7 C (-25.1 F)
n/a
n/a
Apr
29.4 C (84.9 F)
-20.6 C (-5.1 F)
n/a
n/a
May
32.2 C (90.0 F)
-8.3 C (17.1 F)
n/a
n/a
Jun
32.8 C (91.0 F)
-5.0 C (23.0 F)
n/a
n/a
Jul
34.4 C (93.9 F)
1.0 C (33.8 F)
n/a
n/a
Aug
33.3 C (91.9 F)
-1.1 C (30.0 F)
n/a
n/a
Sep
31.1 C (88.0 F)
-6.5 C (20.3 F)
n/a
n/a
Oct
27.8 C (82.0 F)
-12.2 C (10.0 F)
n/a
n/a
Nov
23.3 C (73.9 F)
-23.3 C (-9.9 F)
n/a
n/a
Dec
15.6 C (60.1 F)
-35.5 C (-31.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Stanstead still stand. 1979 holds the most, with 64.
Standing records at Stanstead by the year they were set
Year set
Standing records
1948
28
1949
56
1950
49
1951
49
1952
25
1953
48
1954
40
1955
45
1956
49
1957
45
1958
30
1959
53
1960
29
1961
35
1962
36
1963
46
1964
39
1965
40
1966
50
1967
41
1968
38
1969
27
1970
33
1971
34
1972
28
1973
45
1974
45
1975
31
1976
56
1977
35
1978
33
1979
64
1980
31
1981
55
1982
46
1983
30
Wettest Day of Each Month
Oct: 68.1 mm (2.7 in)
The wettest day on record for each calendar month at Stanstead. The most was 68.1 mm (2.7 in) on 6 October 1962.
Record daily precipitation for each month at Stanstead
Month
Record daily precipitation (mm)
Date
Jan
36.6 mm (1.4 in)
21 January 1959
Feb
38.9 mm (1.5 in)
7 February 1951
Mar
40.6 mm (1.6 in)
8 March 1956
Apr
43.4 mm (1.7 in)
20 April 1950
May
46.0 mm (1.8 in)
15 May 1960
Jun
66.0 mm (2.6 in)
1 June 1952
Jul
57.2 mm (2.3 in)
16 July 1978
Aug
57.2 mm (2.3 in)
26 August 1975
Sep
42.1 mm (1.7 in)
21 September 1983
Oct
68.1 mm (2.7 in)
6 October 1962
Nov
48.0 mm (1.9 in)
27 November 1959
Dec
45.0 mm (1.8 in)
4 December 1950
Period of Record Coverage
1948 to 1983
Complete yearUnder 90 percent of days
36 years of record at Stanstead, 1948 to 1983. 1 years have data for under 90 percent of days and are left out of rankings: 1948.
Cooler than the station meanWarmer than the station mean
One stripe for each of 34 complete years at Stanstead, 1949 to 1982. Blue stripes are years cooler than the station's own mean of 4.9 C (40.8 F); red stripes are warmer. The coolest year was 1965, at 3.9 C (39.1 F), and the warmest was 1953, at 6.5 C (43.7 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Stanstead as warming stripes, 1949 to 1982
Year
Annual mean temperature
Difference from the station mean
1949
6.3 C
+1.37 C
1950
5.2 C
+0.26 C
1951
5.6 C
+0.65 C
1952
5.5 C
+0.60 C
1953
6.5 C
+1.58 C
1954
4.8 C
-0.11 C
1955
5.1 C
+0.24 C
1956
4.4 C
-0.47 C
1957
5.4 C
+0.45 C
1958
4.3 C
-0.64 C
1959
5.2 C
+0.32 C
1960
5.2 C
+0.33 C
1961
5.0 C
+0.14 C
1962
4.1 C
-0.78 C
1963
4.2 C
-0.72 C
1964
4.9 C
-0.02 C
1965
3.9 C
-0.97 C
1966
4.6 C
-0.26 C
1967
4.2 C
-0.71 C
1968
4.0 C
-0.91 C
1969
4.8 C
-0.12 C
1970
4.2 C
-0.66 C
1971
4.6 C
-0.32 C
1972
4.3 C
-0.56 C
1973
6.2 C
+1.29 C
1974
4.7 C
-0.20 C
1975
5.9 C
+0.99 C
1976
4.5 C
-0.38 C
1977
5.6 C
+0.73 C
1978
4.2 C
-0.72 C
1979
5.6 C
+0.69 C
1980
4.0 C
-0.93 C
1981
5.1 C
+0.17 C
1982
4.5 C
-0.43 C
The fitted trend in annual mean temperature here over 1949 to 1982 is -0.21 C (-0.45 to 0.04) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.4 F (-0.8 to 0.1) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Stanstead
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.21 C (-0.45 to 0.04) per decade
-0.4 F (-0.8 to 0.1) per decade
1949 to 1982
34
Not clearly different from zero
Mean daily maximum
-0.21 C (-0.45 to 0.02) per decade
-0.39 F (-0.81 to 0.04) per decade
1949 to 1982
34
Not clearly different from zero
Mean daily minimum
-0.2 C (-0.5 to 0.1) per decade
-0.4 F (-0.9 to 0.1) per decade
1949 to 1982
34
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
1948 to 1983
Yearly extremes at Stanstead: 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)
1953
31.7 C (89.1 F)
36
Coldest night (TNn)
-39.4 C (-38.9 F)
1957
-33.3 C (-27.9 F)
36
Wettest day (Rx1day)
68.1 mm (2.7 in)
1962
44.9 mm (1.8 in)
36
Wettest five days (Rx5day)
109.7 mm (4.3 in)
1973
72.3 mm (2.8 in)
36
Longest dry spell (CDD)
17 days
1948
12 days
36
Hottest day (TXx)
The hottest day of the year at Stanstead, 1948 to 1983. The record is 34.4 C (93.9 F) in 1953, marked on the chart; the median year is 31.7 C (89.1 F).
Hottest day (TXx) at Stanstead by year
Year
Hottest day (TXx)
1948
32.2 C (90.0 F)
1949
33.3 C (91.9 F)
1950
29.4 C (84.9 F)
1951
29.4 C (84.9 F)
1952
33.3 C (91.9 F)
1953
34.4 C (93.9 F)
1954
31.1 C (88.0 F)
1955
33.9 C (93.0 F)
1956
32.2 C (90.0 F)
1957
32.2 C (90.0 F)
1958
29.4 C (84.9 F)
1959
33.3 C (91.9 F)
1960
31.1 C (88.0 F)
1961
30.6 C (87.1 F)
1962
31.1 C (88.0 F)
1963
32.2 C (90.0 F)
1964
32.2 C (90.0 F)
1965
31.1 C (88.0 F)
1966
31.7 C (89.1 F)
1967
29.4 C (84.9 F)
1968
31.1 C (88.0 F)
1969
32.8 C (91.0 F)
1970
31.7 C (89.1 F)
1971
31.1 C (88.0 F)
1972
30.0 C (86.0 F)
1973
31.7 C (89.1 F)
1974
30.0 C (86.0 F)
1975
33.3 C (91.9 F)
1976
30.0 C (86.0 F)
1977
33.3 C (91.9 F)
1978
31.1 C (88.0 F)
1979
31.7 C (89.1 F)
1980
30.0 C (86.0 F)
1981
30.5 C (86.9 F)
1982
32.0 C (89.6 F)
1983
32.0 C (89.6 F)
Coldest night (TNn)
The coldest night of the year at Stanstead, 1948 to 1983. The record is -39.4 C (-38.9 F) in 1957, marked on the chart; the median year is -33.3 C (-27.9 F).
Coldest night (TNn) at Stanstead by year
Year
Coldest night (TNn)
1948
-27.8 C (-18.0 F)
1949
-27.8 C (-18.0 F)
1950
-31.7 C (-25.1 F)
1951
-35.0 C (-31.0 F)
1952
-28.9 C (-20.0 F)
1953
-27.8 C (-18.0 F)
1954
-34.4 C (-29.9 F)
1955
-34.4 C (-29.9 F)
1956
-31.1 C (-24.0 F)
1957
-39.4 C (-38.9 F)
1958
-31.7 C (-25.1 F)
1959
-34.4 C (-29.9 F)
1960
-33.9 C (-29.0 F)
1961
-33.3 C (-27.9 F)
1962
-34.4 C (-29.9 F)
1963
-35.0 C (-31.0 F)
1964
-28.3 C (-18.9 F)
1965
-33.3 C (-27.9 F)
1966
-32.8 C (-27.0 F)
1967
-34.4 C (-29.9 F)
1968
-37.2 C (-35.0 F)
1969
-29.4 C (-20.9 F)
1970
-32.2 C (-26.0 F)
1971
-33.3 C (-27.9 F)
1972
-34.4 C (-29.9 F)
1973
-32.2 C (-26.0 F)
1974
-32.8 C (-27.0 F)
1975
-30.6 C (-23.1 F)
1976
-32.8 C (-27.0 F)
1977
-29.4 C (-20.9 F)
1978
-33.3 C (-27.9 F)
1979
-34.4 C (-29.9 F)
1980
-35.5 C (-31.9 F)
1981
-36.5 C (-33.7 F)
1982
-37.0 C (-34.6 F)
1983
-32.0 C (-25.6 F)
Wettest day (Rx1day)
The wettest day of the year at Stanstead, 1948 to 1983. The record is 68.1 mm (2.7 in) in 1962, marked on the chart; the median year is 44.9 mm (1.8 in).
Wettest day (Rx1day) at Stanstead by year
Year
Wettest day (Rx1day)
1948
42.7 mm (1.7 in)
1949
53.6 mm (2.1 in)
1950
45.0 mm (1.8 in)
1951
38.9 mm (1.5 in)
1952
66.0 mm (2.6 in)
1953
52.6 mm (2.1 in)
1954
46.5 mm (1.8 in)
1955
39.4 mm (1.6 in)
1956
40.6 mm (1.6 in)
1957
39.1 mm (1.5 in)
1958
51.6 mm (2.0 in)
1959
48.0 mm (1.9 in)
1960
48.5 mm (1.9 in)
1961
49.5 mm (1.9 in)
1962
68.1 mm (2.7 in)
1963
39.9 mm (1.6 in)
1964
27.9 mm (1.1 in)
1965
45.7 mm (1.8 in)
1966
48.3 mm (1.9 in)
1967
43.4 mm (1.7 in)
1968
34.8 mm (1.4 in)
1969
32.5 mm (1.3 in)
1970
36.1 mm (1.4 in)
1971
42.9 mm (1.7 in)
1972
38.6 mm (1.5 in)
1973
44.5 mm (1.8 in)
1974
51.8 mm (2.0 in)
1975
57.2 mm (2.3 in)
1976
52.6 mm (2.1 in)
1977
35.6 mm (1.4 in)
1978
57.2 mm (2.3 in)
1979
44.7 mm (1.8 in)
1980
54.4 mm (2.1 in)
1981
52.0 mm (2.0 in)
1982
41.0 mm (1.6 in)
1983
42.1 mm (1.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Stanstead, 1948 to 1983. The record is 109.7 mm (4.3 in) in 1973, marked on the chart; the median year is 72.3 mm (2.8 in).
Wettest five days (Rx5day) at Stanstead by year
Year
Wettest five days (Rx5day)
1948
91.7 mm (3.6 in)
1949
96.5 mm (3.8 in)
1950
65.0 mm (2.6 in)
1951
51.1 mm (2.0 in)
1952
80.8 mm (3.2 in)
1953
82.3 mm (3.2 in)
1954
89.2 mm (3.5 in)
1955
72.9 mm (2.9 in)
1956
62.2 mm (2.4 in)
1957
75.7 mm (3.0 in)
1958
71.4 mm (2.8 in)
1959
79.8 mm (3.1 in)
1960
76.0 mm (3.0 in)
1961
74.1 mm (2.9 in)
1962
94.8 mm (3.7 in)
1963
57.4 mm (2.3 in)
1964
45.4 mm (1.8 in)
1965
70.9 mm (2.8 in)
1966
54.4 mm (2.1 in)
1967
51.0 mm (2.0 in)
1968
58.5 mm (2.3 in)
1969
70.6 mm (2.8 in)
1970
64.9 mm (2.6 in)
1971
71.6 mm (2.8 in)
1972
69.3 mm (2.7 in)
1973
109.7 mm (4.3 in)
1974
89.7 mm (3.5 in)
1975
90.8 mm (3.6 in)
1976
74.2 mm (2.9 in)
1977
62.1 mm (2.4 in)
1978
92.4 mm (3.6 in)
1979
59.9 mm (2.4 in)
1980
74.8 mm (2.9 in)
1981
86.9 mm (3.4 in)
1982
71.4 mm (2.8 in)
1983
61.2 mm (2.4 in)
Longest dry spell (CDD)
The longest dry spell of the year at Stanstead, 1948 to 1983. The record is 17 days in 1948, marked on the chart; the median year is 12 days.
Longest dry spell (CDD) at Stanstead by year
Year
Longest dry spell (CDD)
1948
17 days
1949
16 days
1950
15 days
1951
15 days
1952
13 days
1953
15 days
1954
12 days
1955
9 days
1956
16 days
1957
14 days
1958
8 days
1959
11 days
1960
8 days
1961
13 days
1962
13 days
1963
17 days
1964
13 days
1965
12 days
1966
14 days
1967
12 days
1968
12 days
1969
11 days
1970
13 days
1971
13 days
1972
11 days
1973
10 days
1974
9 days
1975
12 days
1976
10 days
1977
11 days
1978
10 days
1979
12 days
1980
11 days
1981
11 days
1982
10 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
34 years with a frost
Across 34 years with a frost, the median last spring frost at Stanstead falls on 26 May and the median first autumn frost on 18 September, which leaves a median of 117 days between them.
Fitted over all years, the growing season changes by +4.6 days per decade at this station.
Frost dates and growing season at Stanstead
Measure
Median, all years
Earliest period
Recent period (1953 to 1982)
Recent against earliest
Fitted trend
Last spring frost
26 May
n/a
27 May
n/a
-1.9 days per decade
First autumn frost
18 September
n/a
18 September
n/a
+2.7 days per decade
Growing days
117 days
n/a
116 days
n/a
+4.6 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
35 years, 1949 to 1983
A day with at least 45.3 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 69.2 mm (2.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Stanstead: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
45.3 mm (1.8 in)
5 years
53.3 mm (2.1 in)
10 years
57.9 mm (2.3 in)
25 years
63.0 mm (2.5 in)
50 years
66.3 mm (2.6 in)
Longer than the 35 years of record
100 years
69.2 mm (2.7 in)
Longer than the 35 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, 35 years of values from 1949 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: 68.1 mm (2.7 in) in 1962; 66.0 mm (2.6 in) in 1952; 57.2 mm (2.3 in) in 1975.
Download the Data
Data for Stanstead standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Stanstead 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.