Truro Nsac Threshold Days by Year (CA008206000)

15 fixed thresholds counted per year at Truro Nsac (CA008206000): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Truro Nsac Thresholds

Truro Nsac: days with 10 mm (0.39 in) or more of precipitation in 53 years, most in 1936 with 53.
Truro Nsac: days with 25 mm (0.98 in) or more of precipitation in 53 years, most in 1959 with 14.
Truro Nsac: days with 10 cm (3.9 in) or more of snowfall in 53 years, most in 1923 with 11.
Truro Nsac: days with a maximum temperature at or below 0 C (32 F) in 51 years, most in 1918 with 82.
15 fixed thresholds have at least one qualifying day at Truro Nsac.

Days at or above 30 C (86 F)

35 years with a qualifying day

Days per year at Truro Nsac with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 9 in 1937.

Days at or above 30 C (86 F) per year at Truro Nsac
Year	Days	Decade average
1910	2	3
1911	5	3
1912	3	3
1914	2	3
1920	3	3
1921	5	3
1926	1	3
1930	2	3
1931	2	3
1932	1	3
1933	1	3
1934	1	3
1935	5	3
1937	9	3
1938	1	3
1939	5	3
1941	1	2.6
1942	4	2.6
1943	1	2.6
1944	7	2.6
1945	1	2.6
1946	1	2.6
1947	1	2.6
1948	2	2.6
1949	5	2.6
1952	5	3.2
1953	1	3.2
1955	8	3.2
1956	1	3.2
1959	1	3.2
1960	4	2.2
1961	1	2.2
1963	2	2.2
1965	3	2.2
1966	1	2.2

For each year, a bar from the first to the last day at Truro Nsac meeting 30 C (86 F).

First to last qualifying date each year at Truro Nsac
Year	First date	Last date
1910	1910-07-11	1910-07-12
1911	1911-07-04	1911-08-09
1912	1912-07-10	1912-07-17
1914	1914-09-23	1914-09-24
1920	1920-07-15	1920-08-11
1921	1921-07-09	1921-07-28
1926	1926-07-22	1926-07-22
1930	1930-06-07	1930-08-05
1931	1931-07-03	1931-07-30
1932	1932-08-27	1932-08-27
1933	1933-08-17	1933-08-17
1934	1934-07-08	1934-07-08
1935	1935-08-16	1935-08-20
1937	1937-06-02	1937-08-22
1938	1938-06-23	1938-06-23
1939	1939-07-09	1939-08-26
1941	1941-07-26	1941-07-26
1942	1942-07-15	1942-09-03
1943	1943-07-14	1943-07-14
1944	1944-07-01	1944-08-17
1945	1945-08-13	1945-08-13
1946	1946-06-28	1946-06-28
1947	1947-08-14	1947-08-14
1948	1948-06-30	1948-07-01
1949	1949-07-28	1949-08-06
1952	1952-07-08	1952-07-16
1953	1953-08-30	1953-08-30
1955	1955-07-01	1955-08-20
1956	1956-06-15	1956-06-15
1959	1959-07-29	1959-07-29
1960	1960-07-12	1960-09-09
1961	1961-08-10	1961-08-10
1963	1963-07-14	1963-07-28
1965	1965-07-17	1965-08-10
1966	1966-08-02	1966-08-02

Every Fixed Threshold

Fixed thresholds at Truro Nsac
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	35	9	1937	1
35 C (95 F): Days	2	1	1935	1
90 F (32.2 C): Days	17	6	1944	1
0 C (32 F): Ice days (max	51	82	1918	41
0 C (32 F): Frost days (min	51	203	1965	172
-10 C (14 F): Days with min	51	83	1934	38
-20 C (-4 F): Days with min	50	33	1934	6
-30 C (-22 F): Days with min	16	7	1934	1
20 C (68 F): Tropical nights (min	13	6	1937	2
10 mm (0.39 in): Days with 10 mm or more rain	53	53	1936	36
25 mm (0.98 in): Days with 25 mm or more rain	53	14	1959	9
50 mm (1.97 in): Days with 50 mm or more rain	22	3	1935	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1913	1
10 cm (3.9 in): Days with 10 cm or more snowfall	53	11	1923	3
25 cm (9.8 in): Days with 25 cm or more snowfall	17	2	1912	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1910.

Download the Data

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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Truro Nsac Threshold Days by Year (CA008206000)

Key Facts for Truro Nsac Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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