Record envelope, standing records and threshold days for Truro Nsac (CA008206000), Nova Scotia, Canada, with 57 years of record.
Key Facts for Truro Nsac
Truro Nsac (CA008206000) is a weather station in Nova Scotia, Canada at 45.37 latitude and -63.30 longitude, 24 m (79 ft) above sea level.
The station reports from 1910 to 1966, 57 years of record.
1,464 records set at Truro Nsac still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Truro Nsac set a daily record precipitation of 17.5 mm (0.7 in) on 22 December 1966.
About the Station
Location: Nova Scotia, Canada, 45.37 latitude, -63.30 longitude.
Elevation: 24 m (79 ft).
Period of record: 1910 to 1966, 57 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 Truro Nsac. 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 Truro Nsac, 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)
-38.3 C (-36.9 F)
n/a
n/a
Feb
14.4 C (57.9 F)
-35.6 C (-32.1 F)
n/a
n/a
Mar
18.3 C (64.9 F)
-30.0 C (-22.0 F)
n/a
n/a
Apr
29.4 C (84.9 F)
-23.9 C (-11.0 F)
n/a
n/a
May
29.4 C (84.9 F)
-10.6 C (12.9 F)
n/a
n/a
Jun
32.2 C (90.0 F)
-4.4 C (24.1 F)
n/a
n/a
Jul
33.3 C (91.9 F)
-0.6 C (30.9 F)
n/a
n/a
Aug
35.6 C (96.1 F)
-1.1 C (30.0 F)
n/a
n/a
Sep
32.8 C (91.0 F)
-5.0 C (23.0 F)
n/a
n/a
Oct
25.6 C (78.1 F)
-12.2 C (10.0 F)
n/a
n/a
Nov
22.2 C (72.0 F)
-21.1 C (-6.0 F)
n/a
n/a
Dec
17.8 C (64.0 F)
-32.2 C (-26.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Truro Nsac still stand. 1920 holds the most, with 46.
Standing records at Truro Nsac by the year they were set
Year set
Standing records
1910
45
1911
44
1912
39
1913
43
1914
33
1915
14
1916
28
1917
19
1918
42
1919
25
1920
46
1921
40
1922
34
1923
41
1924
11
1925
28
1926
19
1927
29
1928
10
1929
25
1930
29
1931
20
1932
17
1933
32
1934
37
1935
12
1936
34
1937
26
1938
26
1939
25
1940
17
1941
21
1942
23
1943
21
1944
24
1945
26
1946
29
1947
27
1948
29
1949
27
1950
34
1951
22
1952
15
1953
27
1954
28
1955
16
1956
29
1957
20
1958
11
1959
24
1960
26
1961
20
1962
16
1963
12
1964
18
1965
17
1966
12
All-Time Record Progression
2 new records
2 all-time records were set at Truro Nsac between 30 January 1941 and 26 September 1961. Each dot is a new record.
When Truro Nsac set new all-time records
Date
Kind
Detail
1941-01-30
Record daily snowfall
Record daily snowfall 35.6 cm (14.0 in)
1961-09-26
Record high minimum temperature
Record high minimum temperature 22.2 C (72.0 F)
Wettest Day of Each Month
Apr: 133.4 mm (5.3 in)
The wettest day on record for each calendar month at Truro Nsac. The most was 133.4 mm (5.3 in) on 12 April 1913.
Record daily precipitation for each month at Truro Nsac
Month
Record daily precipitation (mm)
Date
Jan
63.8 mm (2.5 in)
11 January 1935
Feb
63.5 mm (2.5 in)
7 February 1920
Mar
41.9 mm (1.6 in)
31 March 1966
Apr
133.4 mm (5.3 in)
12 April 1913
May
64.0 mm (2.5 in)
2 May 1947
Jun
55.1 mm (2.2 in)
16 June 1924
Jul
69.1 mm (2.7 in)
7 July 1930
Aug
92.7 mm (3.6 in)
14 August 1917
Sep
116.8 mm (4.6 in)
22 September 1942
Oct
79.8 mm (3.1 in)
2 October 1923
Nov
53.1 mm (2.1 in)
6 November 1934
Dec
59.2 mm (2.3 in)
10 December 1928
Period of Record Coverage
1910 to 1966
Complete yearUnder 90 percent of days
57 years of record at Truro Nsac, 1910 to 1966. 6 years have data for under 90 percent of days and are left out of rankings: 1915, 1916, 1917, 1927, 1928, 1929.
Cooler than the station meanWarmer than the station mean
One stripe for each of 45 complete years at Truro Nsac, 1910 to 1966. Blue stripes are years cooler than the station's own mean of 5.7 C (42.3 F); red stripes are warmer. The coolest year was 1918, at 4.1 C (39.4 F), and the warmest was 1953, at 7.4 C (45.2 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Truro Nsac as warming stripes, 1910 to 1966
Year
Annual mean temperature
Difference from the station mean
1910
5.8 C
+0.02 C
1912
4.9 C
-0.88 C
1913
6.0 C
+0.26 C
1914
4.5 C
-1.23 C
1918
4.1 C
-1.64 C
1919
5.1 C
-0.64 C
1920
5.1 C
-0.67 C
1921
5.2 C
-0.53 C
1922
4.7 C
-1.08 C
1924
4.8 C
-0.92 C
1925
5.1 C
-0.62 C
1929
5.3 C
-0.40 C
1930
6.2 C
+0.43 C
1931
6.9 C
+1.13 C
1932
6.0 C
+0.22 C
1933
5.7 C
-0.09 C
1934
4.9 C
-0.88 C
1935
5.2 C
-0.59 C
1936
5.9 C
+0.20 C
1937
6.9 C
+1.15 C
1938
6.0 C
+0.25 C
1939
5.3 C
-0.47 C
1940
5.0 C
-0.72 C
1942
6.2 C
+0.46 C
1943
5.4 C
-0.34 C
1946
5.9 C
+0.15 C
1947
6.5 C
+0.79 C
1948
5.1 C
-0.66 C
1949
6.4 C
+0.66 C
1950
5.6 C
-0.10 C
1951
6.8 C
+1.01 C
1953
7.4 C
+1.61 C
1954
6.9 C
+1.20 C
1955
6.0 C
+0.21 C
1956
5.6 C
-0.16 C
1957
6.2 C
+0.49 C
1958
6.4 C
+0.62 C
1959
6.2 C
+0.50 C
1960
7.0 C
+1.28 C
1961
6.3 C
+0.53 C
1962
5.4 C
-0.34 C
1963
5.5 C
-0.22 C
1964
5.4 C
-0.30 C
1965
5.2 C
-0.54 C
1966
6.7 C
+0.95 C
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1910 to 1966. In Fahrenheit: 0.4 F (0.2 to 0.6) 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 Truro Nsac
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (0.1 to 0.3) per decade
0.4 F (0.2 to 0.6) per decade
1910 to 1966
45
Rise
Mean daily maximum
0.2 C (0.1 to 0.3) per decade
0.3 F (0.1 to 0.5) per decade
1910 to 1966
45
Rise
Mean daily minimum
0.3 C (0.1 to 0.4) per decade
0.5 F (0.2 to 0.8) per decade
1910 to 1966
45
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
1910 to 1966
Yearly extremes at Truro Nsac: 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)
1935
30.0 C (86.0 F)
57
Coldest night (TNn)
-38.3 C (-36.9 F)
1934
-27.8 C (-18.0 F)
57
Wettest day (Rx1day)
133.4 mm (5.3 in)
1913
48.3 mm (1.9 in)
57
Wettest five days (Rx5day)
183.7 mm (7.2 in)
1913
78.2 mm (3.1 in)
57
Longest dry spell (CDD)
30 days
1919
15 days
57
Hottest day (TXx)
The hottest day of the year at Truro Nsac, 1910 to 1966. The record is 35.6 C (96.1 F) in 1935, marked on the chart; the median year is 30.0 C (86.0 F).
Hottest day (TXx) at Truro Nsac by year
Year
Hottest day (TXx)
1910
30.0 C (86.0 F)
1911
31.1 C (88.0 F)
1912
30.0 C (86.0 F)
1913
29.4 C (84.9 F)
1914
31.7 C (89.1 F)
1915
17.8 C (64.0 F)
1916
30.0 C (86.0 F)
1917
29.4 C (84.9 F)
1918
29.4 C (84.9 F)
1919
29.4 C (84.9 F)
1920
32.2 C (90.0 F)
1921
32.2 C (90.0 F)
1922
28.3 C (82.9 F)
1923
28.3 C (82.9 F)
1924
29.4 C (84.9 F)
1925
28.9 C (84.0 F)
1926
32.8 C (91.0 F)
1927
30.0 C (86.0 F)
1928
32.2 C (90.0 F)
1929
28.9 C (84.0 F)
1930
32.2 C (90.0 F)
1931
31.1 C (88.0 F)
1932
30.6 C (87.1 F)
1933
32.8 C (91.0 F)
1934
30.0 C (86.0 F)
1935
35.6 C (96.1 F)
1936
28.9 C (84.0 F)
1937
32.8 C (91.0 F)
1938
30.0 C (86.0 F)
1939
33.3 C (91.9 F)
1940
28.9 C (84.0 F)
1941
30.0 C (86.0 F)
1942
32.8 C (91.0 F)
1943
30.0 C (86.0 F)
1944
35.6 C (96.1 F)
1945
30.0 C (86.0 F)
1946
30.6 C (87.1 F)
1947
34.4 C (93.9 F)
1948
31.1 C (88.0 F)
1949
33.3 C (91.9 F)
1950
28.9 C (84.0 F)
1951
28.9 C (84.0 F)
1952
32.8 C (91.0 F)
1953
30.0 C (86.0 F)
1954
28.9 C (84.0 F)
1955
32.2 C (90.0 F)
1956
31.1 C (88.0 F)
1957
29.4 C (84.9 F)
1958
28.9 C (84.0 F)
1959
32.2 C (90.0 F)
1960
33.9 C (93.0 F)
1961
31.1 C (88.0 F)
1962
28.3 C (82.9 F)
1963
31.1 C (88.0 F)
1964
29.4 C (84.9 F)
1965
32.2 C (90.0 F)
1966
30.0 C (86.0 F)
Coldest night (TNn)
The coldest night of the year at Truro Nsac, 1910 to 1966. The record is -38.3 C (-36.9 F) in 1934, marked on the chart; the median year is -27.8 C (-18.0 F).
Coldest night (TNn) at Truro Nsac by year
Year
Coldest night (TNn)
1910
-29.4 C (-20.9 F)
1911
-27.2 C (-17.0 F)
1912
-31.7 C (-25.1 F)
1913
-31.1 C (-24.0 F)
1914
-32.2 C (-26.0 F)
1915
-25.6 C (-14.1 F)
1916
-21.1 C (-6.0 F)
1917
-27.8 C (-18.0 F)
1918
-28.9 C (-20.0 F)
1919
-27.2 C (-17.0 F)
1920
-32.2 C (-26.0 F)
1921
-28.3 C (-18.9 F)
1922
-35.6 C (-32.1 F)
1923
-31.1 C (-24.0 F)
1924
-26.7 C (-16.1 F)
1925
-34.4 C (-29.9 F)
1926
-29.4 C (-20.9 F)
1927
-26.1 C (-15.0 F)
1928
-27.8 C (-18.0 F)
1929
-27.2 C (-17.0 F)
1930
-25.6 C (-14.1 F)
1931
-25.6 C (-14.1 F)
1932
-25.0 C (-13.0 F)
1933
-30.0 C (-22.0 F)
1934
-38.3 C (-36.9 F)
1935
-28.9 C (-20.0 F)
1936
-23.9 C (-11.0 F)
1937
-23.9 C (-11.0 F)
1938
-30.0 C (-22.0 F)
1939
-22.8 C (-9.0 F)
1940
-28.9 C (-20.0 F)
1941
-25.0 C (-13.0 F)
1942
-26.7 C (-16.1 F)
1943
-27.8 C (-18.0 F)
1944
-23.3 C (-9.9 F)
1945
-30.6 C (-23.1 F)
1946
-27.8 C (-18.0 F)
1947
-22.8 C (-9.0 F)
1948
-31.1 C (-24.0 F)
1949
-25.6 C (-14.1 F)
1950
-25.6 C (-14.1 F)
1951
-29.4 C (-20.9 F)
1952
-26.7 C (-16.1 F)
1953
-18.3 C (-0.9 F)
1954
-31.7 C (-25.1 F)
1955
-31.7 C (-25.1 F)
1956
-25.6 C (-14.1 F)
1957
-31.7 C (-25.1 F)
1958
-26.1 C (-15.0 F)
1959
-24.4 C (-11.9 F)
1960
-23.9 C (-11.0 F)
1961
-34.4 C (-29.9 F)
1962
-27.8 C (-18.0 F)
1963
-27.2 C (-17.0 F)
1964
-26.7 C (-16.1 F)
1965
-25.6 C (-14.1 F)
1966
-30.6 C (-23.1 F)
Wettest day (Rx1day)
The wettest day of the year at Truro Nsac, 1910 to 1966. The record is 133.4 mm (5.3 in) in 1913, marked on the chart; the median year is 48.3 mm (1.9 in).
Wettest day (Rx1day) at Truro Nsac by year
Year
Wettest day (Rx1day)
1910
41.9 mm (1.6 in)
1911
41.1 mm (1.6 in)
1912
60.5 mm (2.4 in)
1913
133.4 mm (5.3 in)
1914
39.9 mm (1.6 in)
1915
55.9 mm (2.2 in)
1916
38.1 mm (1.5 in)
1917
92.7 mm (3.6 in)
1918
71.1 mm (2.8 in)
1919
37.1 mm (1.5 in)
1920
63.5 mm (2.5 in)
1921
36.8 mm (1.4 in)
1922
48.3 mm (1.9 in)
1923
79.8 mm (3.1 in)
1924
55.1 mm (2.2 in)
1925
37.1 mm (1.5 in)
1926
45.7 mm (1.8 in)
1927
54.4 mm (2.1 in)
1928
59.2 mm (2.3 in)
1929
48.3 mm (1.9 in)
1930
69.1 mm (2.7 in)
1931
45.7 mm (1.8 in)
1932
47.0 mm (1.9 in)
1933
43.7 mm (1.7 in)
1934
53.1 mm (2.1 in)
1935
63.8 mm (2.5 in)
1936
55.4 mm (2.2 in)
1937
47.0 mm (1.9 in)
1938
47.0 mm (1.9 in)
1939
48.5 mm (1.9 in)
1940
38.1 mm (1.5 in)
1941
66.0 mm (2.6 in)
1942
116.8 mm (4.6 in)
1943
48.3 mm (1.9 in)
1944
44.5 mm (1.8 in)
1945
33.8 mm (1.3 in)
1946
65.8 mm (2.6 in)
1947
64.0 mm (2.5 in)
1948
47.8 mm (1.9 in)
1949
47.2 mm (1.9 in)
1950
44.7 mm (1.8 in)
1951
54.6 mm (2.1 in)
1952
39.1 mm (1.5 in)
1953
47.2 mm (1.9 in)
1954
50.3 mm (2.0 in)
1955
45.2 mm (1.8 in)
1956
49.3 mm (1.9 in)
1957
38.1 mm (1.5 in)
1958
55.1 mm (2.2 in)
1959
63.5 mm (2.5 in)
1960
36.8 mm (1.4 in)
1961
42.7 mm (1.7 in)
1962
59.2 mm (2.3 in)
1963
43.4 mm (1.7 in)
1964
75.7 mm (3.0 in)
1965
39.4 mm (1.6 in)
1966
41.9 mm (1.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Truro Nsac, 1910 to 1966. The record is 183.7 mm (7.2 in) in 1913, marked on the chart; the median year is 78.2 mm (3.1 in).
Wettest five days (Rx5day) at Truro Nsac by year
Year
Wettest five days (Rx5day)
1910
108.4 mm (4.3 in)
1911
59.3 mm (2.3 in)
1912
78.2 mm (3.1 in)
1913
183.7 mm (7.2 in)
1914
44.9 mm (1.8 in)
1915
85.1 mm (3.4 in)
1916
68.6 mm (2.7 in)
1917
124.5 mm (4.9 in)
1918
88.4 mm (3.5 in)
1919
50.8 mm (2.0 in)
1920
78.7 mm (3.1 in)
1921
48.7 mm (1.9 in)
1922
87.7 mm (3.5 in)
1923
91.4 mm (3.6 in)
1924
76.5 mm (3.0 in)
1925
75.7 mm (3.0 in)
1926
89.4 mm (3.5 in)
1927
64.7 mm (2.5 in)
1928
74.2 mm (2.9 in)
1929
125.3 mm (4.9 in)
1930
101.3 mm (4.0 in)
1931
77.7 mm (3.1 in)
1932
68.1 mm (2.7 in)
1933
91.8 mm (3.6 in)
1934
100.8 mm (4.0 in)
1935
108.2 mm (4.3 in)
1936
88.2 mm (3.5 in)
1937
97.2 mm (3.8 in)
1938
73.3 mm (2.9 in)
1939
63.5 mm (2.5 in)
1940
57.2 mm (2.3 in)
1941
74.9 mm (2.9 in)
1942
175.6 mm (6.9 in)
1943
82.5 mm (3.2 in)
1944
50.9 mm (2.0 in)
1945
54.9 mm (2.2 in)
1946
81.3 mm (3.2 in)
1947
120.6 mm (4.7 in)
1948
68.9 mm (2.7 in)
1949
72.3 mm (2.8 in)
1950
74.9 mm (2.9 in)
1951
58.2 mm (2.3 in)
1952
59.0 mm (2.3 in)
1953
68.6 mm (2.7 in)
1954
84.6 mm (3.3 in)
1955
67.1 mm (2.6 in)
1956
146.6 mm (5.8 in)
1957
78.8 mm (3.1 in)
1958
89.2 mm (3.5 in)
1959
113.0 mm (4.4 in)
1960
55.6 mm (2.2 in)
1961
82.0 mm (3.2 in)
1962
84.0 mm (3.3 in)
1963
58.7 mm (2.3 in)
1964
95.1 mm (3.7 in)
1965
55.9 mm (2.2 in)
1966
78.0 mm (3.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Truro Nsac, 1910 to 1966. The record is 30 days in 1919, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Truro Nsac by year
Year
Longest dry spell (CDD)
1910
16 days
1911
22 days
1912
10 days
1913
12 days
1914
18 days
1915
16 days
1916
14 days
1917
20 days
1918
24 days
1919
30 days
1920
25 days
1921
18 days
1922
11 days
1923
14 days
1924
14 days
1925
17 days
1926
21 days
1927
11 days
1928
15 days
1929
19 days
1930
17 days
1931
16 days
1932
15 days
1933
12 days
1934
17 days
1935
15 days
1936
8 days
1937
15 days
1938
17 days
1939
16 days
1940
12 days
1941
9 days
1942
15 days
1943
10 days
1944
20 days
1945
26 days
1946
12 days
1947
14 days
1948
13 days
1949
13 days
1950
20 days
1951
13 days
1952
9 days
1953
14 days
1954
15 days
1955
8 days
1956
15 days
1957
11 days
1958
11 days
1959
11 days
1960
16 days
1961
16 days
1962
19 days
1963
14 days
1964
19 days
1965
16 days
1966
8 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 Truro Nsac falls on 7 June and the median first autumn frost on 17 September, which leaves a median of 102 days between them.
Fitted over all years, the growing season changes by +3.5 days per decade at this station.
Frost dates and growing season at Truro Nsac
Measure
Median, all years
Earliest period
Recent period (1933 to 1966)
Recent against earliest
Fitted trend
Last spring frost
7 June
n/a
9 June
n/a
-0.6 days per decade
First autumn frost
17 September
n/a
18 September
n/a
+2.9 days per decade
Growing days
102 days
n/a
103 days
n/a
+3.5 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
53 years, 1910 to 1966
A day with at least 48.4 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 125.9 mm (5.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Truro Nsac: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
48.4 mm (1.9 in)
5 years
61.5 mm (2.4 in)
10 years
72.6 mm (2.9 in)
25 years
90.2 mm (3.6 in)
50 years
106.4 mm (4.2 in)
100 years
125.9 mm (5.0 in)
Longer than the 53 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, 53 years of values from 1910 to 1966.
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: 133.4 mm (5.3 in) in 1913; 116.8 mm (4.6 in) in 1942; 79.8 mm (3.1 in) in 1923.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Truro Nsac, at 1925 and 1954. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1925 ran 0.3 C (0.6 F) higher than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1954 ran 0.2 C (0.4 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Truro Nsac, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1925
+0.3
+0.6
likely
5
1954
+0.2
+0.4
possible
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Truro Nsac standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Truro Nsac 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.