Record envelope, standing records and threshold days for Salmon Hole (CA008205000), Nova Scotia, Canada, with 75 years of record.
Key Facts for Salmon Hole
Salmon Hole (CA008205000) is a weather station in Nova Scotia, Canada at 44.93 latitude and -64.03 longitude, 84 m (276 ft) above sea level.
The station reports from 1938 to 2012, 75 years of record.
1,464 records set at Salmon Hole still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Salmon Hole set a daily record low minimum temperature of -25.0 C (-13.0 F) on 27 December 1983.
About the Station
Location: Nova Scotia, Canada, 44.93 latitude, -64.03 longitude.
Elevation: 84 m (276 ft).
Period of record: 1938 to 2012, 75 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 Salmon Hole. 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 Salmon Hole, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
15.0 C (59.0 F)
-31.7 C (-25.1 F)
n/a
n/a
Feb
14.0 C (57.2 F)
-33.9 C (-29.0 F)
n/a
n/a
Mar
21.7 C (71.1 F)
-28.9 C (-20.0 F)
n/a
n/a
Apr
26.7 C (80.1 F)
-15.6 C (3.9 F)
n/a
n/a
May
32.8 C (91.0 F)
-8.3 C (17.1 F)
n/a
n/a
Jun
33.9 C (93.0 F)
-3.3 C (26.1 F)
n/a
n/a
Jul
34.4 C (93.9 F)
0.6 C (33.1 F)
n/a
n/a
Aug
35.6 C (96.1 F)
0.6 C (33.1 F)
n/a
n/a
Sep
32.2 C (90.0 F)
-4.4 C (24.1 F)
n/a
n/a
Oct
26.1 C (79.0 F)
-9.4 C (15.1 F)
n/a
n/a
Nov
22.2 C (72.0 F)
-13.3 C (8.1 F)
n/a
n/a
Dec
16.7 C (62.1 F)
-28.0 C (-18.4 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Salmon Hole still stand. 1979 holds the most, with 76.
Standing records at Salmon Hole by the year they were set
Year set
Standing records
1938
12
1939
42
1940
40
1941
33
1942
40
1943
45
1944
41
1945
50
1946
51
1947
49
1948
38
1949
39
1950
42
1951
30
1952
16
1953
34
1954
25
1955
29
1956
33
1957
31
1958
27
1959
21
1960
13
1961
18
1962
17
1963
18
1964
17
1965
26
1966
19
1967
38
1968
28
1969
27
1970
26
1971
28
1972
33
1973
26
1974
26
1975
34
1976
40
1977
32
1978
34
1979
76
1980
26
1981
30
1982
30
1983
34
All-Time Record Progression
4 new records
4 all-time records were set at Salmon Hole between 24 December 1970 and 27 July 1979. Each dot is a new record.
When Salmon Hole set new all-time records
Date
Kind
Detail
1970-12-24
Record daily snowfall
Record daily snowfall 50.8 cm (20.0 in)
1971-02-04
Record low minimum temperature
Record low minimum temperature -33.9 C (-29.0 F)
1971-08-15
Record daily precipitation
Record daily precipitation 139.2 mm (5.5 in)
1979-07-27
Record high minimum temperature
Record high minimum temperature 23.3 C (73.9 F)
Wettest Day of Each Month
Aug: 139.2 mm (5.5 in)
The wettest day on record for each calendar month at Salmon Hole. The most was 139.2 mm (5.5 in) on 15 August 1971.
Record daily precipitation for each month at Salmon Hole
Month
Record daily precipitation (mm)
Date
Jan
115.8 mm (4.6 in)
14 January 1978
Feb
67.1 mm (2.6 in)
25 February 1965
Mar
70.6 mm (2.8 in)
20 March 1975
Apr
68.0 mm (2.7 in)
28 April 1982
May
86.9 mm (3.4 in)
4 May 1943
Jun
67.8 mm (2.7 in)
20 June 1959
Jul
83.8 mm (3.3 in)
30 July 1977
Aug
139.2 mm (5.5 in)
15 August 1971
Sep
96.0 mm (3.8 in)
22 September 1942
Oct
134.4 mm (5.3 in)
26 October 1959
Nov
64.0 mm (2.5 in)
9 November 1972
Dec
82.3 mm (3.2 in)
10 December 1975
Period of Record Coverage
1938 to 1983
Complete yearUnder 90 percent of days
46 years of record at Salmon Hole, 1938 to 1983. 3 years have data for under 90 percent of days and are left out of rankings: 1938, 1961, 1963.
Cooler than the station meanWarmer than the station mean
One stripe for each of 43 complete years at Salmon Hole, 1939 to 1983. Blue stripes are years cooler than the station's own mean of 6.5 C (43.8 F); red stripes are warmer. The coolest year was 1948, at 5.2 C (41.3 F), and the warmest was 1979, at 9.0 C (48.3 F). The strongest colour marks a difference of 2.5 C (4.5 F).
Annual mean temperature at Salmon Hole as warming stripes, 1939 to 1983
Year
Annual mean temperature
Difference from the station mean
1939
5.7 C
-0.81 C
1940
5.3 C
-1.21 C
1941
5.7 C
-0.85 C
1942
6.4 C
-0.11 C
1943
5.4 C
-1.11 C
1944
6.1 C
-0.43 C
1945
5.9 C
-0.61 C
1946
5.8 C
-0.72 C
1947
5.9 C
-0.60 C
1948
5.2 C
-1.37 C
1949
7.1 C
+0.54 C
1950
6.3 C
-0.20 C
1951
7.7 C
+1.18 C
1952
7.0 C
+0.46 C
1953
7.8 C
+1.26 C
1954
6.8 C
+0.24 C
1955
6.2 C
-0.30 C
1956
6.4 C
-0.12 C
1957
7.0 C
+0.46 C
1958
6.8 C
+0.22 C
1959
6.7 C
+0.15 C
1960
7.3 C
+0.72 C
1962
6.0 C
-0.57 C
1964
6.1 C
-0.40 C
1965
5.5 C
-1.05 C
1966
6.9 C
+0.39 C
1967
5.8 C
-0.79 C
1968
5.6 C
-0.96 C
1969
7.4 C
+0.87 C
1970
6.5 C
-0.05 C
1971
6.7 C
+0.16 C
1972
5.8 C
-0.71 C
1973
7.2 C
+0.64 C
1974
6.5 C
-0.09 C
1975
6.8 C
+0.22 C
1976
7.5 C
+0.92 C
1977
7.2 C
+0.63 C
1978
6.6 C
+0.01 C
1979
9.0 C
+2.49 C
1980
7.3 C
+0.72 C
1981
7.0 C
+0.43 C
1982
6.2 C
-0.30 C
1983
7.2 C
+0.70 C
The annual mean temperature here has risen by 0.3 C (0.1 to 0.4) per decade over 1939 to 1983. In Fahrenheit: 0.5 F (0.2 to 0.8) per decade. The slope is a straight line fitted to 43 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Salmon Hole
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.3 C (0.1 to 0.4) per decade
0.5 F (0.2 to 0.8) per decade
1939 to 1983
43
Rise
Mean daily maximum
0.1 C (-0.1 to 0.3) per decade
0.2 F (-0.1 to 0.5) per decade
1939 to 1983
43
Not clearly different from zero
Mean daily minimum
0.4 C (0.2 to 0.6) per decade
0.8 F (0.4 to 1.1) per decade
1939 to 1983
43
Rise
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
1938 to 1983
Yearly extremes at Salmon Hole: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
35.6 C (96.1 F)
1944
31.7 C (89.1 F)
46
Coldest night (TNn)
-33.9 C (-29.0 F)
1971
-26.1 C (-15.0 F)
46
Wettest day (Rx1day)
139.2 mm (5.5 in)
1971
62.8 mm (2.5 in)
46
Wettest five days (Rx5day)
230.0 mm (9.1 in)
1956
93.3 mm (3.7 in)
46
Longest dry spell (CDD)
31 days
1939
15 days
46
Hottest day (TXx)
The hottest day of the year at Salmon Hole, 1938 to 1983. The record is 35.6 C (96.1 F) in 1944, marked on the chart; the median year is 31.7 C (89.1 F).
Hottest day (TXx) at Salmon Hole by year
Year
Hottest day (TXx)
1938
26.1 C (79.0 F)
1939
32.2 C (90.0 F)
1940
31.1 C (88.0 F)
1941
32.2 C (90.0 F)
1942
31.7 C (89.1 F)
1943
32.2 C (90.0 F)
1944
35.6 C (96.1 F)
1945
32.2 C (90.0 F)
1946
33.3 C (91.9 F)
1947
33.9 C (93.0 F)
1948
30.6 C (87.1 F)
1949
33.3 C (91.9 F)
1950
30.6 C (87.1 F)
1951
30.0 C (86.0 F)
1952
33.3 C (91.9 F)
1953
30.0 C (86.0 F)
1954
31.7 C (89.1 F)
1955
32.8 C (91.0 F)
1956
29.4 C (84.9 F)
1957
32.8 C (91.0 F)
1958
28.9 C (84.0 F)
1959
31.7 C (89.1 F)
1960
32.2 C (90.0 F)
1961
29.4 C (84.9 F)
1962
30.6 C (87.1 F)
1963
34.4 C (93.9 F)
1964
30.0 C (86.0 F)
1965
31.7 C (89.1 F)
1966
30.0 C (86.0 F)
1967
31.1 C (88.0 F)
1968
31.1 C (88.0 F)
1969
31.7 C (89.1 F)
1970
31.7 C (89.1 F)
1971
31.1 C (88.0 F)
1972
30.6 C (87.1 F)
1973
31.7 C (89.1 F)
1974
30.6 C (87.1 F)
1975
33.3 C (91.9 F)
1976
35.0 C (95.0 F)
1977
32.8 C (91.0 F)
1978
32.8 C (91.0 F)
1979
31.1 C (88.0 F)
1980
31.0 C (87.8 F)
1981
30.0 C (86.0 F)
1982
30.5 C (86.9 F)
1983
32.0 C (89.6 F)
Coldest night (TNn)
The coldest night of the year at Salmon Hole, 1938 to 1983. The record is -33.9 C (-29.0 F) in 1971, marked on the chart; the median year is -26.1 C (-15.0 F).
Coldest night (TNn) at Salmon Hole by year
Year
Coldest night (TNn)
1938
-15.0 C (5.0 F)
1939
-21.1 C (-6.0 F)
1940
-25.6 C (-14.1 F)
1941
-27.2 C (-17.0 F)
1942
-27.8 C (-18.0 F)
1943
-28.3 C (-18.9 F)
1944
-23.9 C (-11.0 F)
1945
-28.9 C (-20.0 F)
1946
-28.9 C (-20.0 F)
1947
-26.7 C (-16.1 F)
1948
-31.1 C (-24.0 F)
1949
-25.0 C (-13.0 F)
1950
-26.1 C (-15.0 F)
1951
-26.7 C (-16.1 F)
1952
-22.8 C (-9.0 F)
1953
-21.1 C (-6.0 F)
1954
-32.2 C (-26.0 F)
1955
-30.6 C (-23.1 F)
1956
-25.0 C (-13.0 F)
1957
-31.7 C (-25.1 F)
1958
-21.1 C (-6.0 F)
1959
-25.0 C (-13.0 F)
1960
-21.1 C (-6.0 F)
1961
-30.6 C (-23.1 F)
1962
-27.2 C (-17.0 F)
1963
-24.4 C (-11.9 F)
1964
-26.1 C (-15.0 F)
1965
-29.4 C (-20.9 F)
1966
-26.1 C (-15.0 F)
1967
-28.9 C (-20.0 F)
1968
-27.8 C (-18.0 F)
1969
-18.3 C (-0.9 F)
1970
-25.6 C (-14.1 F)
1971
-33.9 C (-29.0 F)
1972
-26.1 C (-15.0 F)
1973
-27.8 C (-18.0 F)
1974
-26.1 C (-15.0 F)
1975
-25.6 C (-14.1 F)
1976
-22.8 C (-9.0 F)
1977
-20.0 C (-4.0 F)
1978
-24.4 C (-11.9 F)
1979
-25.0 C (-13.0 F)
1980
-28.0 C (-18.4 F)
1981
-29.5 C (-21.1 F)
1982
-27.0 C (-16.6 F)
1983
-25.0 C (-13.0 F)
Wettest day (Rx1day)
The wettest day of the year at Salmon Hole, 1938 to 1983. The record is 139.2 mm (5.5 in) in 1971, marked on the chart; the median year is 62.8 mm (2.5 in).
Wettest day (Rx1day) at Salmon Hole by year
Year
Wettest day (Rx1day)
1938
76.5 mm (3.0 in)
1939
55.9 mm (2.2 in)
1940
51.6 mm (2.0 in)
1941
42.4 mm (1.7 in)
1942
96.0 mm (3.8 in)
1943
86.9 mm (3.4 in)
1944
44.7 mm (1.8 in)
1945
63.0 mm (2.5 in)
1946
64.0 mm (2.5 in)
1947
64.8 mm (2.6 in)
1948
92.7 mm (3.6 in)
1949
116.1 mm (4.6 in)
1950
96.8 mm (3.8 in)
1951
43.4 mm (1.7 in)
1952
64.5 mm (2.5 in)
1953
62.5 mm (2.5 in)
1954
56.4 mm (2.2 in)
1955
37.8 mm (1.5 in)
1956
96.0 mm (3.8 in)
1957
56.6 mm (2.2 in)
1958
65.3 mm (2.6 in)
1959
134.4 mm (5.3 in)
1960
44.7 mm (1.8 in)
1961
70.6 mm (2.8 in)
1962
50.0 mm (2.0 in)
1963
54.6 mm (2.1 in)
1964
42.7 mm (1.7 in)
1965
67.1 mm (2.6 in)
1966
33.8 mm (1.3 in)
1967
96.3 mm (3.8 in)
1968
43.7 mm (1.7 in)
1969
51.6 mm (2.0 in)
1970
59.7 mm (2.4 in)
1971
139.2 mm (5.5 in)
1972
65.0 mm (2.6 in)
1973
40.6 mm (1.6 in)
1974
66.0 mm (2.6 in)
1975
82.3 mm (3.2 in)
1976
51.6 mm (2.0 in)
1977
83.8 mm (3.3 in)
1978
115.8 mm (4.6 in)
1979
53.1 mm (2.1 in)
1980
55.6 mm (2.2 in)
1981
57.0 mm (2.2 in)
1982
68.0 mm (2.7 in)
1983
55.6 mm (2.2 in)
Wettest five days (Rx5day)
The wettest five days of the year at Salmon Hole, 1938 to 1983. The record is 230.0 mm (9.1 in) in 1956, marked on the chart; the median year is 93.3 mm (3.7 in).
Wettest five days (Rx5day) at Salmon Hole by year
Year
Wettest five days (Rx5day)
1938
92.2 mm (3.6 in)
1939
68.1 mm (2.7 in)
1940
71.6 mm (2.8 in)
1941
85.3 mm (3.4 in)
1942
181.6 mm (7.1 in)
1943
109.0 mm (4.3 in)
1944
67.1 mm (2.6 in)
1945
114.3 mm (4.5 in)
1946
101.8 mm (4.0 in)
1947
114.6 mm (4.5 in)
1948
96.0 mm (3.8 in)
1949
175.8 mm (6.9 in)
1950
129.1 mm (5.1 in)
1951
60.5 mm (2.4 in)
1952
107.7 mm (4.2 in)
1953
91.5 mm (3.6 in)
1954
95.2 mm (3.7 in)
1955
62.4 mm (2.5 in)
1956
230.0 mm (9.1 in)
1957
70.3 mm (2.8 in)
1958
128.6 mm (5.1 in)
1959
188.3 mm (7.4 in)
1960
69.1 mm (2.7 in)
1961
156.4 mm (6.2 in)
1962
80.3 mm (3.2 in)
1963
63.0 mm (2.5 in)
1964
83.9 mm (3.3 in)
1965
78.8 mm (3.1 in)
1966
54.1 mm (2.1 in)
1967
112.8 mm (4.4 in)
1968
76.2 mm (3.0 in)
1969
84.0 mm (3.3 in)
1970
82.6 mm (3.3 in)
1971
212.2 mm (8.4 in)
1972
82.3 mm (3.2 in)
1973
109.2 mm (4.3 in)
1974
116.1 mm (4.6 in)
1975
118.1 mm (4.6 in)
1976
80.1 mm (3.2 in)
1977
111.3 mm (4.4 in)
1978
145.8 mm (5.7 in)
1979
121.9 mm (4.8 in)
1980
67.5 mm (2.7 in)
1981
94.3 mm (3.7 in)
1982
85.3 mm (3.4 in)
1983
69.5 mm (2.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at Salmon Hole, 1938 to 1983. The record is 31 days in 1939, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Salmon Hole by year
Year
Longest dry spell (CDD)
1938
15 days
1939
31 days
1940
15 days
1941
15 days
1942
11 days
1943
13 days
1944
15 days
1945
17 days
1946
17 days
1947
14 days
1948
9 days
1949
13 days
1950
17 days
1951
13 days
1952
14 days
1953
15 days
1954
16 days
1955
10 days
1956
16 days
1957
14 days
1958
15 days
1959
15 days
1960
14 days
1961
18 days
1962
12 days
1963
14 days
1964
15 days
1965
18 days
1966
14 days
1967
13 days
1968
19 days
1969
15 days
1970
12 days
1971
16 days
1972
10 days
1973
16 days
1974
28 days
1975
23 days
1976
11 days
1977
8 days
1978
25 days
1979
15 days
1980
14 days
1981
12 days
1982
19 days
1983
15 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
43 years with a frost
Across 43 years with a frost, the median last spring frost at Salmon Hole falls on 28 May and the median first autumn frost on 30 September, which leaves a median of 124 days between them.
Fitted over all years, the growing season changes by +8.3 days per decade at this station.
Frost dates and growing season at Salmon Hole
Measure
Median, all years
Earliest period
Recent period (1952 to 1983)
Recent against earliest
Fitted trend
Last spring frost
28 May
n/a
27 May
n/a
-3.9 days per decade
First autumn frost
30 September
n/a
9 October
n/a
+4.3 days per decade
Growing days
124 days
n/a
133 days
n/a
+8.3 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, 1939 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 167.5 mm (6.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Salmon Hole: 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
84.3 mm (3.3 in)
10 years
101.2 mm (4.0 in)
25 years
125.3 mm (4.9 in)
50 years
145.4 mm (5.7 in)
Longer than the 42 years of record
100 years
167.5 mm (6.6 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 1939 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: 139.2 mm (5.5 in) in 1971; 134.4 mm (5.3 in) in 1959; 116.1 mm (4.6 in) in 1949.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Salmon Hole standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Salmon Hole 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.