Hedley Threshold Days by Year (CA001123360)

18 fixed thresholds counted per year at Hedley (CA001123360): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hedley Thresholds

Hedley: days with 10 mm (0.39 in) or more of precipitation in 73 years, most in 1923 with 16.
Hedley: days with a maximum temperature at or above 30 C (86 F) in 67 years, most in 1958 with 69.
Hedley: days with a maximum temperature at or above 90 F (32.2 C) in 67 years, most in 1958 with 44.
Hedley: days with a maximum temperature at or below 0 C (32 F) in 67 years, most in 1916 with 81.
18 fixed thresholds have at least one qualifying day at Hedley.

Days at or above 30 C (86 F)

67 years with a qualifying day

Days per year at Hedley with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 69 in 1958.

Days at or above 30 C (86 F) per year at Hedley
Year	Days	Decade average
1905	16	22
1906	12	22
1907	23	22
1908	34	22
1909	25	22
1910	27	31.8
1911	21	31.8
1912	29	31.8
1913	29	31.8
1914	37	31.8
1915	36	31.8
1916	22	31.8
1917	38	31.8
1918	43	31.8
1919	36	31.8
1923	29	34.1
1924	45	34.1
1925	38	34.1
1926	38	34.1
1927	27	34.1
1928	30	34.1
1929	32	34.1
1930	31	31.4
1931	33	31.4
1932	18	31.4
1933	32	31.4
1934	33	31.4
1935	24	31.4
1936	39	31.4
1937	29	31.4
1938	39	31.4
1939	36	31.4
1940	40	24.8
1941	24	24.8
1942	30	24.8
1943	22	24.8
1944	26	24.8
1945	30	24.8
1946	16	24.8
1947	17	24.8
1948	18	24.8
1956	37	40
1957	24	40
1958	69	40
1959	30	40
1960	37	33.6
1961	36	33.6
1962	29	33.6
1963	31	33.6
1964	15	33.6
1965	34	33.6
1967	60	33.6
1968	27	33.6
1970	49	37.3
1971	45	37.3
1972	37	37.3
1973	46	37.3
1974	46	37.3
1975	23	37.3
1976	15	37.3
1977	39	37.3
1978	31	37.3
1979	42	37.3
1980	19	26
1981	29	26
1982	31	26
1983	25	26

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

First to last qualifying date each year at Hedley
Year	First date	Last date
1905	1905-07-08	1905-08-12
1906	1906-06-25	1906-10-24
1907	1907-05-30	1907-09-08
1908	1908-06-13	1908-09-05
1909	1909-06-10	1909-09-16
1910	1910-04-24	1910-09-20
1911	1911-05-31	1911-09-02
1912	1912-05-13	1912-08-23
1913	1913-06-01	1913-09-17
1914	1914-05-31	1914-09-06
1915	1915-06-23	1915-09-03
1916	1916-06-14	1916-08-31
1917	1917-06-15	1917-08-29
1918	1918-06-09	1918-09-20
1919	1919-05-21	1919-08-30
1923	1923-06-28	1923-09-07
1924	1924-05-11	1924-09-13
1925	1925-05-17	1925-08-20
1926	1926-04-28	1926-09-04
1927	1927-06-06	1927-08-23
1928	1928-05-20	1928-09-23
1929	1929-05-21	1929-09-13
1930	1930-06-15	1930-09-05
1931	1931-05-30	1931-08-28
1932	1932-06-11	1932-08-24
1933	1933-06-12	1933-08-28
1934	1934-04-23	1934-09-05
1935	1935-07-12	1935-09-09
1936	1936-04-17	1936-08-29
1937	1937-05-03	1937-09-15
1938	1938-05-24	1938-09-17
1939	1939-04-28	1939-08-27
1940	1940-05-22	1940-09-12
1941	1941-05-23	1941-08-21
1942	1942-06-29	1942-09-04
1943	1943-06-29	1943-09-11
1944	1944-06-10	1944-09-12
1945	1945-05-29	1945-08-23
1946	1946-06-19	1946-09-02
1947	1947-05-25	1947-08-29
1948	1948-05-26	1948-09-13
1956	1956-05-17	1956-09-19
1957	1957-04-29	1957-09-15
1958	1958-05-17	1958-09-10
1959	1959-05-13	1959-09-13
1960	1960-07-02	1960-09-13
1961	1961-05-19	1961-07-31
1962	1962-06-07	1962-09-20
1963	1963-05-20	1963-09-09
1964	1964-06-30	1964-08-22
1965	1965-06-08	1965-08-22
1967	1967-06-14	1967-09-21
1968	1968-06-18	1968-09-05
1970	1970-05-16	1970-08-27
1971	1971-05-11	1971-08-30
1972	1972-05-28	1972-09-04
1973	1973-05-13	1973-09-11
1974	1974-06-11	1974-09-25
1975	1975-05-31	1975-08-15
1976	1976-06-28	1976-09-01
1977	1977-04-23	1977-08-21
1978	1978-06-02	1978-08-09
1979	1979-06-01	1979-09-19
1980	1980-07-01	1980-08-13
1981	1981-06-25	1981-09-18
1982	1982-05-24	1982-09-01
1983	1983-05-24	1983-08-31

Every Fixed Threshold

Fixed thresholds at Hedley
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	67	69	1958	25
35 C (95 F): Days	60	27	1958	3
40 C (104 F): Days	7	2	1941	1
90 F (32.2 C): Days	67	44	1958	8
100 F (37.8 C): Days	38	8	1971	1
0 C (32 F): Ice days (max	67	81	1916	34
0 C (32 F): Frost days (min	66	182	1972	121
-10 C (14 F): Days with min	66	61	1916	16
-20 C (-4 F): Days with min	47	22	1916	7
-30 C (-22 F): Days with min	12	4	1909	1
20 C (68 F): Tropical nights (min	7	4	1937	1
25 C (77 F): Days with min	1	1	1937	1
10 mm (0.39 in): Days with 10 mm or more rain	73	16	1923	9
25 mm (0.98 in): Days with 25 mm or more rain	25	2	1909	1
50 mm (1.97 in): Days with 50 mm or more rain	2	1	1909	1
10 cm (3.9 in): Days with 10 cm or more snowfall	50	5	1923	1
25 cm (9.8 in): Days with 25 cm or more snowfall	6	1	1932	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1935	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1905.

Download the Data

Data for Hedley 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Hedley Threshold Days by Year (CA001123360)

Key Facts for Hedley Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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