Record envelope, standing records and threshold days for Yarmouth A (CA008206500), Nova Scotia, Canada, with 73 years of record.
Key Facts for Yarmouth A
Yarmouth A (CA008206500) is a weather station in Nova Scotia, Canada at 43.83 latitude and -66.08 longitude, 43 m (141 ft) above sea level.
The station reports from 1940 to 2012, 73 years of record.
1,464 records set at Yarmouth A still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Yarmouth A set a daily record low maximum temperature of -8.3 C (17.1 F) on 25 December 1983.
About the Station
Location: Nova Scotia, Canada, 43.83 latitude, -66.08 longitude.
Elevation: 43 m (141 ft).
Period of record: 1940 to 2012, 73 years.
Eligible elements: tmax, tmin, prcp, snow.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Yarmouth 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 Yarmouth A, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
12.3 C (54.1 F)
-21.1 C (-6.0 F)
n/a
n/a
Feb
12.8 C (55.0 F)
-21.1 C (-6.0 F)
n/a
n/a
Mar
16.1 C (61.0 F)
-17.2 C (1.0 F)
n/a
n/a
Apr
20.0 C (68.0 F)
-9.4 C (15.1 F)
n/a
n/a
May
24.4 C (75.9 F)
-2.2 C (28.0 F)
n/a
n/a
Jun
28.3 C (82.9 F)
1.7 C (35.1 F)
n/a
n/a
Jul
30.0 C (86.0 F)
5.8 C (42.4 F)
n/a
n/a
Aug
29.4 C (84.9 F)
5.0 C (41.0 F)
n/a
n/a
Sep
29.4 C (84.9 F)
-2.3 C (27.9 F)
n/a
n/a
Oct
25.0 C (77.0 F)
-3.9 C (25.0 F)
n/a
n/a
Nov
18.8 C (65.8 F)
-8.2 C (17.2 F)
n/a
n/a
Dec
16.1 C (61.0 F)
-20.0 C (-4.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Yarmouth A still stand. 1979 holds the most, with 67.
Standing records at Yarmouth A by the year they were set
Year set
Standing records
1940
32
1941
28
1942
32
1943
30
1944
25
1945
25
1946
43
1947
49
1948
37
1949
44
1950
36
1951
46
1952
20
1953
40
1954
39
1955
20
1956
39
1957
29
1958
25
1959
38
1960
27
1961
29
1962
30
1963
25
1964
31
1965
35
1966
26
1967
30
1968
37
1969
26
1970
16
1971
31
1972
37
1973
28
1974
33
1975
30
1976
39
1977
30
1978
38
1979
67
1980
28
1981
41
1982
47
1983
26
Wettest Day of Each Month
Oct: 172.5 mm (6.8 in)
The wettest day on record for each calendar month at Yarmouth A. The most was 172.5 mm (6.8 in) on 1 October 1959.
Record daily precipitation for each month at Yarmouth A
Month
Record daily precipitation (mm)
Date
Jan
69.6 mm (2.7 in)
5 January 1956
Feb
61.4 mm (2.4 in)
26 February 1979
Mar
96.0 mm (3.8 in)
25 March 1953
Apr
72.4 mm (2.9 in)
28 April 1973
May
72.4 mm (2.9 in)
4 May 1945
Jun
77.7 mm (3.1 in)
2 June 1959
Jul
92.5 mm (3.6 in)
17 July 1967
Aug
101.1 mm (4.0 in)
17 August 1952
Sep
103.4 mm (4.1 in)
16 September 1940
Oct
172.5 mm (6.8 in)
1 October 1959
Nov
111.3 mm (4.4 in)
27 November 1950
Dec
110.7 mm (4.4 in)
4 December 1967
Period of Record Coverage
1940 to 1983
Complete yearUnder 90 percent of days
44 years of record at Yarmouth A, 1940 to 1983. 2 years have data for under 90 percent of days and are left out of rankings: 1940, 1979.
Cooler than the station meanWarmer than the station mean
One stripe for each of 42 complete years at Yarmouth A, 1941 to 1983. Blue stripes are years cooler than the station's own mean of 6.9 C (44.4 F); red stripes are warmer. The coolest year was 1965, at 5.6 C (42.1 F), and the warmest was 1951, at 8.3 C (47.0 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Yarmouth A as warming stripes, 1941 to 1983
Year
Annual mean temperature
Difference from the station mean
1941
6.3 C
-0.58 C
1942
6.9 C
-0.04 C
1943
6.8 C
-0.11 C
1944
7.2 C
+0.28 C
1945
7.2 C
+0.27 C
1946
7.1 C
+0.22 C
1947
7.5 C
+0.56 C
1948
6.6 C
-0.33 C
1949
8.0 C
+1.10 C
1950
7.0 C
+0.11 C
1951
8.3 C
+1.40 C
1952
7.6 C
+0.72 C
1953
8.3 C
+1.38 C
1954
7.3 C
+0.38 C
1955
6.8 C
-0.08 C
1956
6.7 C
-0.25 C
1957
7.3 C
+0.37 C
1958
6.9 C
-0.02 C
1959
7.0 C
+0.06 C
1960
7.4 C
+0.48 C
1961
6.8 C
-0.10 C
1962
6.2 C
-0.71 C
1963
6.4 C
-0.47 C
1964
6.2 C
-0.69 C
1965
5.6 C
-1.30 C
1966
6.7 C
-0.23 C
1967
6.2 C
-0.74 C
1968
6.7 C
-0.21 C
1969
7.5 C
+0.55 C
1970
6.6 C
-0.36 C
1971
6.8 C
-0.13 C
1972
6.2 C
-0.68 C
1973
7.4 C
+0.49 C
1974
6.4 C
-0.53 C
1975
6.7 C
-0.18 C
1976
6.9 C
+0.01 C
1977
6.8 C
-0.14 C
1978
6.1 C
-0.78 C
1980
6.4 C
-0.55 C
1981
7.3 C
+0.41 C
1982
6.7 C
-0.17 C
1983
7.5 C
+0.56 C
The fitted trend in annual mean temperature here over 1941 to 1983 is -0.14 C (-0.28 to 0.01) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.25 F (-0.50 to 0.01) per decade. The slope is a straight line fitted to 42 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Yarmouth A
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.14 C (-0.28 to 0.01) per decade
-0.25 F (-0.50 to 0.01) per decade
1941 to 1983
42
Not clearly different from zero
Mean daily maximum
-0.03 C (-0.17 to 0.10) per decade
-0.1 F (-0.3 to 0.2) per decade
1941 to 1983
42
Not clearly different from zero
Mean daily minimum
-0.2 C (-0.4 to -0.1) per decade
-0.4 F (-0.7 to -0.1) per decade
1941 to 1983
42
Fall
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
1940 to 1983
Yearly extremes at Yarmouth A: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
30.0 C (86.0 F)
1968
26.6 C (79.8 F)
44
Coldest night (TNn)
-21.1 C (-6.0 F)
1943
-16.8 C (1.8 F)
44
Wettest day (Rx1day)
172.5 mm (6.8 in)
1959
62.9 mm (2.5 in)
44
Wettest five days (Rx5day)
175.0 mm (6.9 in)
1959
90.4 mm (3.6 in)
44
Longest dry spell (CDD)
28 days
1980
15 days
44
Hottest day (TXx)
The hottest day of the year at Yarmouth A, 1940 to 1983. The record is 30.0 C (86.0 F) in 1968, marked on the chart; the median year is 26.6 C (79.8 F).
Hottest day (TXx) at Yarmouth A by year
Year
Hottest day (TXx)
1940
28.3 C (82.9 F)
1941
25.6 C (78.1 F)
1942
27.2 C (81.0 F)
1943
27.2 C (81.0 F)
1944
26.7 C (80.1 F)
1945
27.8 C (82.0 F)
1946
25.6 C (78.1 F)
1947
28.3 C (82.9 F)
1948
29.4 C (84.9 F)
1949
27.8 C (82.0 F)
1950
24.4 C (75.9 F)
1951
25.0 C (77.0 F)
1952
25.6 C (78.1 F)
1953
26.1 C (79.0 F)
1954
23.3 C (73.9 F)
1955
27.8 C (82.0 F)
1956
26.7 C (80.1 F)
1957
28.3 C (82.9 F)
1958
25.0 C (77.0 F)
1959
26.1 C (79.0 F)
1960
28.3 C (82.9 F)
1961
27.2 C (81.0 F)
1962
23.9 C (75.0 F)
1963
27.8 C (82.0 F)
1964
24.4 C (75.9 F)
1965
26.1 C (79.0 F)
1966
26.1 C (79.0 F)
1967
25.6 C (78.1 F)
1968
30.0 C (86.0 F)
1969
29.4 C (84.9 F)
1970
27.2 C (81.0 F)
1971
26.1 C (79.0 F)
1972
27.2 C (81.0 F)
1973
27.8 C (82.0 F)
1974
25.6 C (78.1 F)
1975
29.4 C (84.9 F)
1976
27.2 C (81.0 F)
1977
30.0 C (86.0 F)
1978
26.4 C (79.5 F)
1979
26.3 C (79.3 F)
1980
25.9 C (78.6 F)
1981
25.5 C (77.9 F)
1982
25.8 C (78.4 F)
1983
25.6 C (78.1 F)
Coldest night (TNn)
The coldest night of the year at Yarmouth A, 1940 to 1983. The record is -21.1 C (-6.0 F) in 1943, marked on the chart; the median year is -16.8 C (1.8 F).
Coldest night (TNn) at Yarmouth A by year
Year
Coldest night (TNn)
1940
-14.4 C (6.1 F)
1941
-19.4 C (-2.9 F)
1942
-20.0 C (-4.0 F)
1943
-21.1 C (-6.0 F)
1944
-15.0 C (5.0 F)
1945
-15.6 C (3.9 F)
1946
-16.1 C (3.0 F)
1947
-14.4 C (6.1 F)
1948
-18.3 C (-0.9 F)
1949
-14.4 C (6.1 F)
1950
-17.8 C (0.0 F)
1951
-21.1 C (-6.0 F)
1952
-16.1 C (3.0 F)
1953
-11.7 C (10.9 F)
1954
-20.0 C (-4.0 F)
1955
-15.6 C (3.9 F)
1956
-15.6 C (3.9 F)
1957
-20.6 C (-5.1 F)
1958
-13.9 C (7.0 F)
1959
-17.2 C (1.0 F)
1960
-16.1 C (3.0 F)
1961
-16.1 C (3.0 F)
1962
-18.9 C (-2.0 F)
1963
-15.6 C (3.9 F)
1964
-15.6 C (3.9 F)
1965
-18.9 C (-2.0 F)
1966
-19.4 C (-2.9 F)
1967
-19.4 C (-2.9 F)
1968
-18.9 C (-2.0 F)
1969
-12.8 C (9.0 F)
1970
-15.0 C (5.0 F)
1971
-20.0 C (-4.0 F)
1972
-19.4 C (-2.9 F)
1973
-16.7 C (1.9 F)
1974
-16.7 C (1.9 F)
1975
-17.2 C (1.0 F)
1976
-15.6 C (3.9 F)
1977
-16.9 C (1.6 F)
1978
-15.5 C (4.1 F)
1979
-18.8 C (-1.8 F)
1980
-17.9 C (-0.2 F)
1981
-18.3 C (-0.9 F)
1982
-18.7 C (-1.7 F)
1983
-15.5 C (4.1 F)
Wettest day (Rx1day)
The wettest day of the year at Yarmouth A, 1940 to 1983. The record is 172.5 mm (6.8 in) in 1959, marked on the chart; the median year is 62.9 mm (2.5 in).
Wettest day (Rx1day) at Yarmouth A by year
Year
Wettest day (Rx1day)
1940
103.4 mm (4.1 in)
1941
36.3 mm (1.4 in)
1942
49.3 mm (1.9 in)
1943
55.1 mm (2.2 in)
1944
52.3 mm (2.1 in)
1945
72.4 mm (2.9 in)
1946
66.3 mm (2.6 in)
1947
61.0 mm (2.4 in)
1948
70.6 mm (2.8 in)
1949
48.3 mm (1.9 in)
1950
111.3 mm (4.4 in)
1951
47.5 mm (1.9 in)
1952
101.1 mm (4.0 in)
1953
96.0 mm (3.8 in)
1954
68.3 mm (2.7 in)
1955
65.3 mm (2.6 in)
1956
69.6 mm (2.7 in)
1957
50.3 mm (2.0 in)
1958
78.5 mm (3.1 in)
1959
172.5 mm (6.8 in)
1960
46.2 mm (1.8 in)
1961
75.4 mm (3.0 in)
1962
68.8 mm (2.7 in)
1963
66.0 mm (2.6 in)
1964
60.5 mm (2.4 in)
1965
51.3 mm (2.0 in)
1966
61.5 mm (2.4 in)
1967
110.7 mm (4.4 in)
1968
50.8 mm (2.0 in)
1969
72.4 mm (2.9 in)
1970
58.9 mm (2.3 in)
1971
75.4 mm (3.0 in)
1972
47.2 mm (1.9 in)
1973
72.4 mm (2.9 in)
1974
60.7 mm (2.4 in)
1975
62.5 mm (2.5 in)
1976
51.3 mm (2.0 in)
1977
55.9 mm (2.2 in)
1978
63.3 mm (2.5 in)
1979
61.4 mm (2.4 in)
1980
69.8 mm (2.7 in)
1981
58.8 mm (2.3 in)
1982
57.8 mm (2.3 in)
1983
78.8 mm (3.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Yarmouth A, 1940 to 1983. The record is 175.0 mm (6.9 in) in 1959, marked on the chart; the median year is 90.4 mm (3.6 in).
Wettest five days (Rx5day) at Yarmouth A by year
Year
Wettest five days (Rx5day)
1940
130.9 mm (5.2 in)
1941
63.8 mm (2.5 in)
1942
88.7 mm (3.5 in)
1943
86.7 mm (3.4 in)
1944
68.6 mm (2.7 in)
1945
80.8 mm (3.2 in)
1946
91.6 mm (3.6 in)
1947
114.9 mm (4.5 in)
1948
101.0 mm (4.0 in)
1949
88.4 mm (3.5 in)
1950
150.2 mm (5.9 in)
1951
82.8 mm (3.3 in)
1952
127.5 mm (5.0 in)
1953
138.5 mm (5.5 in)
1954
79.8 mm (3.1 in)
1955
97.3 mm (3.8 in)
1956
171.3 mm (6.7 in)
1957
84.6 mm (3.3 in)
1958
128.0 mm (5.0 in)
1959
175.0 mm (6.9 in)
1960
76.4 mm (3.0 in)
1961
84.3 mm (3.3 in)
1962
76.2 mm (3.0 in)
1963
111.0 mm (4.4 in)
1964
90.2 mm (3.6 in)
1965
66.5 mm (2.6 in)
1966
62.3 mm (2.5 in)
1967
132.6 mm (5.2 in)
1968
72.2 mm (2.8 in)
1969
106.3 mm (4.2 in)
1970
94.5 mm (3.7 in)
1971
118.3 mm (4.7 in)
1972
64.5 mm (2.5 in)
1973
139.4 mm (5.5 in)
1974
73.7 mm (2.9 in)
1975
117.6 mm (4.6 in)
1976
85.8 mm (3.4 in)
1977
96.6 mm (3.8 in)
1978
90.5 mm (3.6 in)
1979
122.1 mm (4.8 in)
1980
79.0 mm (3.1 in)
1981
84.2 mm (3.3 in)
1982
66.9 mm (2.6 in)
1983
95.5 mm (3.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Yarmouth A, 1940 to 1983. The record is 28 days in 1980, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Yarmouth A by year
Year
Longest dry spell (CDD)
1940
20 days
1941
22 days
1942
12 days
1943
13 days
1944
18 days
1945
11 days
1946
15 days
1947
25 days
1948
12 days
1949
22 days
1950
15 days
1951
12 days
1952
14 days
1953
18 days
1954
13 days
1955
15 days
1956
15 days
1957
14 days
1958
14 days
1959
16 days
1960
13 days
1961
11 days
1962
16 days
1963
15 days
1964
18 days
1965
21 days
1966
13 days
1967
12 days
1968
14 days
1969
18 days
1970
17 days
1971
18 days
1972
15 days
1973
11 days
1974
14 days
1975
14 days
1976
15 days
1977
15 days
1978
14 days
1979
17 days
1980
28 days
1981
20 days
1982
16 days
1983
16 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
42 years with a frost
Across 42 years with a frost, the median last spring frost at Yarmouth A falls on 2 May and the median first autumn frost on 22 October, which leaves a median of 174 days between them.
Fitted over all years, the growing season changes by -2.6 days per decade at this station.
Frost dates and growing season at Yarmouth A
Measure
Median, all years
Earliest period
Recent period (1953 to 1983)
Recent against earliest
Fitted trend
Last spring frost
2 May
n/a
28 April
n/a
-1.3 days per decade
First autumn frost
22 October
n/a
18 October
n/a
-3.8 days per decade
Growing days
174 days
n/a
174 days
n/a
-2.6 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
42 years, 1941 to 1983
A day with at least 61.9 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 157.0 mm (6.2 in) of rain is expected about once in 100 years.
Rainfall return levels at Yarmouth 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
61.9 mm (2.4 in)
5 years
79.1 mm (3.1 in)
10 years
93.3 mm (3.7 in)
25 years
115.0 mm (4.5 in)
50 years
134.4 mm (5.3 in)
Longer than the 42 years of record
100 years
157.0 mm (6.2 in)
Longer than the 42 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, 42 years of values from 1941 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: 172.5 mm (6.8 in) in 1959; 111.3 mm (4.4 in) in 1950; 110.7 mm (4.4 in) in 1967.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Yarmouth A standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Yarmouth 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.