Harrisville Threshold Days by Year (USC00203624)

17 fixed thresholds counted per year at Harrisville (USC00203624): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Harrisville Thresholds

Harrisville: days with a maximum temperature at or above 30 C (86 F) in 68 years, most in 1916 with 30.
Harrisville: days with a maximum temperature at or below 0 C (32 F) in 68 years, most in 1893 with 90.
Harrisville: nights with a minimum temperature at or below 0 C (32 F) in 68 years, most in 1907 with 191.
Harrisville: nights with a minimum temperature at or below -10 C (14 F) in 68 years, most in 1904 with 99.
17 fixed thresholds have at least one qualifying day at Harrisville.

Days at or above 30 C (86 F)

68 years with a qualifying day

Days per year at Harrisville with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 30 in 1916.

Days at or above 30 C (86 F) per year at Harrisville
Year	Days	Decade average
1892	9	11.4
1893	9	11.4
1894	13	11.4
1895	13	11.4
1896	14	11.4
1897	8	11.4
1898	17	11.4
1899	8	11.4
1900	21	12.4
1901	17	12.4
1902	11	12.4
1903	1	12.4
1904	11	12.4
1905	10	12.4
1906	11	12.4
1907	10	12.4
1908	15	12.4
1909	17	12.4
1910	9	16
1911	16	16
1912	5	16
1913	18	16
1914	15	16
1915	7	16
1916	30	16
1917	16	16
1918	16	16
1919	28	16
1920	2	7.9
1921	10	7.9
1922	4	7.9
1925	12	7.9
1926	6	7.9
1927	6	7.9
1928	7	7.9
1929	16	7.9
1930	11	14.2
1931	23	14.2
1932	11	14.2
1933	19	14.2
1934	14	14.2
1935	10	14.2
1936	18	14.2
1937	16	14.2
1938	12	14.2
1939	8	14.2
1940	9	14.9
1941	22	14.9
1942	5	14.9
1943	10	14.9
1944	19	14.9
1948	14	14.9
1949	25	14.9
1950	8	13.2
1951	5	13.2
1952	23	13.2
1953	11	13.2
1954	9	13.2
1955	28	13.2
1956	7	13.2
1957	8	13.2
1958	9	13.2
1959	24	13.2
1960	4	11.6
1961	11	11.6
1962	13	11.6
1963	11	11.6
1964	19	11.6

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

First to last qualifying date each year at Harrisville
Year	First date	Last date
1892	1892-06-12	1892-09-24
1893	1893-05-20	1893-08-11
1894	1894-06-29	1894-09-04
1895	1895-05-29	1895-09-22
1896	1896-05-08	1896-09-10
1897	1897-07-04	1897-10-15
1898	1898-06-24	1898-09-03
1899	1899-06-07	1899-09-05
1900	1900-05-13	1900-09-26
1901	1901-06-26	1901-09-06
1902	1902-05-22	1902-07-26
1903	1903-07-08	1903-07-08
1904	1904-06-24	1904-09-02
1905	1905-07-05	1905-10-04
1906	1906-05-17	1906-09-11
1907	1907-06-17	1907-09-15
1908	1908-06-19	1908-09-25
1909	1909-06-12	1909-08-25
1910	1910-06-13	1910-08-13
1911	1911-06-10	1911-09-04
1912	1912-06-25	1912-09-10
1913	1913-05-02	1913-08-16
1914	1914-05-20	1914-08-31
1915	1915-04-19	1915-09-14
1916	1916-05-23	1916-10-05
1917	1917-05-16	1917-09-19
1918	1918-05-22	1918-09-01
1919	1919-06-13	1919-09-20
1920	1920-06-28	1920-06-29
1921	1921-05-21	1921-09-02
1922	1922-06-07	1922-08-17
1925	1925-05-31	1925-09-20
1926	1926-07-08	1926-08-29
1927	1927-06-28	1927-09-16
1928	1928-07-07	1928-10-11
1929	1929-05-30	1929-09-04
1930	1930-05-22	1930-08-08
1931	1931-05-28	1931-09-22
1932	1932-05-15	1932-09-01
1933	1933-05-24	1933-09-08
1934	1934-05-04	1934-09-24
1935	1935-06-14	1935-09-25
1936	1936-05-07	1936-09-23
1937	1937-05-30	1937-09-04
1938	1938-07-07	1938-08-23
1939	1939-05-30	1939-09-16
1940	1940-06-03	1940-09-20
1941	1941-05-26	1941-09-23
1942	1942-07-13	1942-09-17
1943	1943-06-03	1943-09-02
1944	1944-05-26	1944-08-14
1948	1948-06-01	1948-09-18
1949	1949-05-04	1949-08-27
1950	1950-06-07	1950-08-08
1951	1951-05-15	1951-07-25
1952	1952-06-06	1952-09-13
1953	1953-06-22	1953-09-04
1954	1954-06-14	1954-09-03
1955	1955-06-29	1955-09-19
1956	1956-05-22	1956-08-31
1957	1957-06-21	1957-08-03
1958	1958-05-14	1958-08-14
1959	1959-06-07	1959-09-09
1960	1960-07-08	1960-09-08
1961	1961-06-05	1961-09-22
1962	1962-04-26	1962-08-30
1963	1963-06-08	1963-10-06
1964	1964-04-17	1964-07-29

Every Fixed Threshold

Fixed thresholds at Harrisville
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	68	30	1916	19
35 C (95 F): Days	43	7	1919	2
40 C (104 F): Days	3	1	1916	1
90 F (32.2 C): Days	66	17	1916	11
100 F (37.8 C): Days	11	4	1916	1
0 C (32 F): Ice days (max	68	90	1893	52
0 C (32 F): Frost days (min	68	191	1907	171
-10 C (14 F): Days with min	68	99	1904	57
-20 C (-4 F): Days with min	64	30	1904	1
-30 C (-22 F): Days with min	6	2	1895	1
20 C (68 F): Tropical nights (min	43	18	1921	2
25 C (77 F): Days with min	3	3	1936	3
10 mm (0.39 in): Days with 10 mm or more rain	61	37	1906	22
25 mm (0.98 in): Days with 25 mm or more rain	60	11	1912	4
50 mm (1.97 in): Days with 50 mm or more rain	22	2	1896	1
10 cm (3.9 in): Days with 10 cm or more snowfall	25	11	1906	2
25 cm (9.8 in): Days with 25 cm or more snowfall	3	1	1950	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1892.

Download the Data

Data for Harrisville 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).

Harrisville Threshold Days by Year (USC00203624)

Key Facts for Harrisville Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related