Hailey 3 NNW Threshold Days by Year

15 fixed thresholds counted per year at Hailey 3 NNW (USC00103942): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hailey 3 NNW Thresholds

Hailey 3 NNW: days with a maximum temperature at or above 30 C (86 F) in 65 years, most in 1919 with 68.
Hailey 3 NNW: days with a maximum temperature at or above 90 F (32.2 C) in 65 years, most in 1919 with 45.
Hailey 3 NNW: days with a maximum temperature at or below 0 C (32 F) in 65 years, most in 1964 with 75.
Hailey 3 NNW: nights with a minimum temperature at or below 0 C (32 F) in 64 years, most in 1954 with 226.
15 fixed thresholds have at least one qualifying day at Hailey 3 NNW.

Days at or above 30 C (86 F)

65 years with a qualifying day

Days per year at Hailey 3 NNW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 68 in 1919.

Days at or above 30 C (86 F) per year at Hailey 3 NNW
Year	Days	Decade average
1901	51	48
1909	45	48
1910	58	40.6
1911	39	40.6
1912	21	40.6
1913	27	40.6
1914	37	40.6
1915	34	40.6
1916	41	40.6
1917	44	40.6
1918	37	40.6
1919	68	40.6
1920	43	36.1
1921	34	36.1
1922	36	36.1
1923	31	36.1
1924	38	36.1
1925	30	36.1
1926	44	36.1
1927	24	36.1
1928	31	36.1
1929	50	36.1
1930	32	48.2
1931	54	48.2
1932	42	48.2
1933	52	48.2
1934	57	48.2
1935	50	48.2
1936	51	48.2
1937	59	48.2
1938	35	48.2
1939	50	48.2
1940	66	41.4
1941	22	41.4
1942	50	41.4
1943	39	41.4
1944	25	41.4
1945	44	41.4
1946	35	41.4
1947	49	41.4
1948	40	41.4
1949	44	41.4
1950	42	33.6
1951	26	33.6
1952	32	33.6
1953	45	33.6
1954	32	33.6
1955	43	33.6
1956	26	33.6
1957	21	33.6
1958	31	33.6
1959	38	33.6
1960	42	38.9
1961	61	38.9
1962	25	38.9
1963	29	38.9
1964	36	38.9
1965	14	38.9
1966	52	38.9
1967	50	38.9
1969	41	38.9
1970	47	39.7
1971	46	39.7
1979	26	39.7
1981	37	37

For each year, a bar from the first to the last day at Hailey 3 NNW meeting 30 C (86 F).

First to last qualifying date each year at Hailey 3 NNW
Year	First date	Last date
1901	1901-06-18	1901-08-31
1909	1909-06-03	1909-08-30
1910	1910-05-30	1910-08-27
1911	1911-06-11	1911-09-01
1912	1912-06-07	1912-08-26
1913	1913-07-06	1913-09-07
1914	1914-06-18	1914-08-26
1915	1915-06-23	1915-08-31
1916	1916-06-16	1916-09-02
1917	1917-07-02	1917-09-03
1918	1918-06-08	1918-09-01
1919	1919-05-20	1919-09-16
1920	1920-06-21	1920-08-24
1921	1921-06-28	1921-08-30
1922	1922-06-20	1922-09-20
1923	1923-07-10	1923-09-12
1924	1924-06-30	1924-09-08
1925	1925-06-20	1925-08-20
1926	1926-06-04	1926-08-26
1927	1927-06-22	1927-08-18
1928	1928-06-25	1928-09-05
1929	1929-06-25	1929-09-01
1930	1930-06-16	1930-09-03
1931	1931-06-07	1931-09-06
1932	1932-06-22	1932-09-06
1933	1933-06-12	1933-09-04
1934	1934-05-22	1934-09-06
1935	1935-06-22	1935-09-10
1936	1936-05-26	1936-08-30
1937	1937-06-21	1937-09-18
1938	1938-06-05	1938-09-27
1939	1939-06-28	1939-09-21
1940	1940-06-11	1940-08-31
1941	1941-06-22	1941-08-08
1942	1942-07-02	1942-09-08
1943	1943-07-06	1943-09-24
1944	1944-06-30	1944-09-12
1945	1945-06-21	1945-09-14
1946	1946-07-01	1946-09-14
1947	1947-05-06	1947-09-05
1948	1948-06-07	1948-09-14
1949	1949-06-10	1949-09-23
1950	1950-06-28	1950-09-07
1951	1951-07-03	1951-08-19
1952	1952-06-09	1952-09-26
1953	1953-07-06	1953-09-15
1954	1954-05-19	1954-08-30
1955	1955-06-20	1955-09-07
1956	1956-06-28	1956-08-23
1957	1957-06-04	1957-09-07
1958	1958-05-26	1958-09-07
1959	1959-06-12	1959-09-11
1960	1960-06-30	1960-09-12
1961	1961-06-16	1961-08-24
1962	1962-06-25	1962-08-26
1963	1963-07-08	1963-09-28
1964	1964-07-07	1964-08-23
1965	1965-07-15	1965-08-12
1966	1966-05-29	1966-09-25
1967	1967-07-01	1967-09-04
1969	1969-06-04	1969-09-09
1970	1970-06-22	1970-08-31
1971	1971-06-21	1971-09-13
1979	1979-06-12	1979-09-08
1981	1981-06-25	1981-09-18

Every Fixed Threshold

Fixed thresholds at Hailey 3 NNW
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	65	68	1919	37
35 C (95 F): Days	45	13	1901	5
90 F (32.2 C): Days	65	45	1919	14
100 F (37.8 C): Days	8	3	1934	1
0 C (32 F): Ice days (max	65	75	1964	35
0 C (32 F): Frost days (min	64	226	1954	188
-10 C (14 F): Days with min	64	109	1964	38
-20 C (-4 F): Days with min	64	30	1932	2
-30 C (-22 F): Days with min	20	6	1937	1
10 mm (0.39 in): Days with 10 mm or more rain	64	20	1970	9
25 mm (0.98 in): Days with 25 mm or more rain	53	4	1964	2
50 mm (1.97 in): Days with 50 mm or more rain	6	2	1964	2
10 cm (3.9 in): Days with 10 cm or more snowfall	41	18	1952	5
25 cm (9.8 in): Days with 25 cm or more snowfall	25	3	1913	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1956	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1901.

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Data for Hailey 3 NNW 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

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

Hailey 3 NNW Threshold Days by Year

Key Facts for Hailey 3 NNW Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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