Prineville Threshold Days by Year (USC00356883)

15 fixed thresholds counted per year at Prineville (USC00356883): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Prineville Thresholds

Prineville: nights with a minimum temperature at or below 0 C (32 F) in 103 years, most in 1899 with 256.
Prineville: nights with a minimum temperature at or below -10 C (14 F) in 103 years, most in 1916 with 56.
Prineville: days with a maximum temperature at or above 30 C (86 F) in 101 years, most in 1898 with 88.
Prineville: days with a maximum temperature at or above 90 F (32.2 C) in 101 years, most in 1901 with 59.
15 fixed thresholds have at least one qualifying day at Prineville.

Days at or above 30 C (86 F)

101 years with a qualifying day

Days per year at Prineville with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 88 in 1898.

Days at or above 30 C (86 F) per year at Prineville
Year	Days	Decade average
1897	36	61
1898	88	61
1899	59	61
1900	46	46.4
1901	82	46.4
1902	73	46.4
1904	36	46.4
1905	33	46.4
1906	42	46.4
1907	19	46.4
1908	40	46.4
1911	59	53.7
1914	60	53.7
1915	49	53.7
1916	35	53.7
1917	70	53.7
1918	47	53.7
1919	56	53.7
1922	67	47.6
1923	45	47.6
1925	56	47.6
1928	32	47.6
1929	38	47.6
1930	38	45.3
1931	49	45.3
1932	36	45.3
1933	43	45.3
1934	52	45.3
1935	38	45.3
1936	44	45.3
1937	45	45.3
1938	58	45.3
1939	50	45.3
1940	50	34.1
1941	27	34.1
1942	41	34.1
1943	32	34.1
1944	28	34.1
1945	44	34.1
1946	27	34.1
1947	37	34.1
1948	26	34.1
1949	29	34.1
1950	40	37
1951	41	37
1952	41	37
1953	31	37
1954	22	37
1955	41	37
1956	34	37
1957	21	37
1958	59	37
1959	40	37
1960	52	51.1
1961	60	51.1
1962	33	51.1
1964	34	51.1
1965	38	51.1
1966	52	51.1
1967	85	51.1
1969	55	51.1
1970	69	55.8
1971	53	55.8
1972	57	55.8
1973	62	55.8
1974	67	55.8
1975	55	55.8
1976	39	55.8
1977	56	55.8
1978	44	55.8
1980	45	51.9
1981	56	51.9
1983	34	51.9
1984	52	51.9
1985	58	51.9
1986	60	51.9
1988	69	51.9
1989	41	51.9
1990	60	56.5
1991	74	56.5
1992	65	56.5
1993	41	56.5
1994	74	56.5
1995	49	56.5
1996	56	56.5
1997	41	56.5
1998	57	56.5
1999	48	56.5
2010	38	51.7
2011	54	51.7
2012	58	51.7
2013	63	51.7
2014	58	51.7
2015	60	51.7
2016	42	51.7
2018	50	51.7
2019	42	51.7
2020	58	64.3
2021	68	64.3
2022	67	64.3
2023	64	64.3

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

First to last qualifying date each year at Prineville
Year	First date	Last date
1897	1897-04-17	1897-09-25
1898	1898-04-27	1898-09-17
1899	1899-06-12	1899-09-28
1900	1900-06-04	1900-10-17
1901	1901-05-21	1901-09-18
1902	1902-05-19	1902-10-04
1904	1904-06-13	1904-09-07
1905	1905-07-04	1905-09-22
1906	1906-05-09	1906-09-19
1907	1907-05-31	1907-09-22
1908	1908-06-24	1908-09-10
1911	1911-06-11	1911-09-10
1914	1914-05-20	1914-09-24
1915	1915-06-06	1915-09-20
1916	1916-06-13	1916-10-16
1917	1917-06-08	1917-10-10
1918	1918-05-02	1918-09-20
1919	1919-05-20	1919-08-30
1922	1922-05-16	1922-08-31
1923	1923-06-27	1923-09-13
1925	1925-04-15	1925-09-23
1928	1928-05-05	1928-09-21
1929	1929-05-19	1929-09-16
1930	1930-06-06	1930-09-04
1931	1931-05-11	1931-09-25
1932	1932-06-20	1932-10-05
1933	1933-05-28	1933-10-07
1934	1934-04-19	1934-10-11
1935	1935-06-04	1935-10-01
1936	1936-05-10	1936-10-10
1937	1937-06-02	1937-09-26
1938	1938-05-24	1938-09-23
1939	1939-05-13	1939-09-22
1940	1940-05-09	1940-09-08
1941	1941-05-23	1941-08-21
1942	1942-06-28	1942-10-09
1943	1943-07-06	1943-10-02
1944	1944-06-29	1944-09-12
1945	1945-06-18	1945-10-02
1946	1946-06-20	1946-09-29
1947	1947-05-01	1947-09-25
1948	1948-06-06	1948-09-13
1949	1949-05-10	1949-09-22
1950	1950-05-26	1950-09-06
1951	1951-05-22	1951-09-19
1952	1952-07-03	1952-10-06
1953	1953-07-06	1953-10-07
1954	1954-05-17	1954-09-26
1955	1955-06-06	1955-09-09
1956	1956-05-17	1956-09-16
1957	1957-05-31	1957-09-24
1958	1958-05-21	1958-10-03
1959	1959-06-01	1959-09-13
1960	1960-05-11	1960-09-18
1961	1961-06-14	1961-10-15
1962	1962-04-13	1962-09-25
1964	1964-06-22	1964-10-12
1965	1965-06-10	1965-10-08
1966	1966-05-02	1966-09-23
1967	1967-05-16	1967-09-29
1969	1969-05-08	1969-09-12
1970	1970-05-03	1970-10-04
1971	1971-06-21	1971-10-09
1972	1972-05-13	1972-09-15
1973	1973-05-13	1973-09-13
1974	1974-06-10	1974-10-17
1975	1975-05-13	1975-10-01
1976	1976-05-13	1976-09-29
1977	1977-04-24	1977-09-13
1978	1978-06-03	1978-09-27
1980	1980-05-04	1980-10-08
1981	1981-05-29	1981-09-18
1983	1983-05-23	1983-09-25
1984	1984-05-28	1984-09-19
1985	1985-05-22	1985-08-29
1986	1986-04-21	1986-09-07
1988	1988-05-11	1988-10-08
1989	1989-06-01	1989-09-24
1990	1990-05-04	1990-09-30
1991	1991-06-09	1991-10-15
1992	1992-05-04	1992-09-30
1993	1993-05-10	1993-10-03
1994	1994-05-09	1994-09-27
1995	1995-05-29	1995-09-17
1996	1996-06-02	1996-10-08
1997	1997-05-11	1997-09-29
1998	1998-04-29	1998-09-16
1999	1999-05-24	1999-10-21
2010	2010-06-29	2010-10-03
2011	2011-06-22	2011-10-01
2012	2012-04-22	2012-09-21
2013	2013-05-11	2013-09-16
2014	2014-05-01	2014-10-08
2015	2015-05-30	2015-10-10
2016	2016-06-04	2016-09-27
2018	2018-04-27	2018-09-28
2019	2019-06-03	2019-09-08
2020	2020-05-10	2020-10-07
2021	2021-04-30	2021-09-26
2022	2022-06-23	2022-10-06
2023	2023-04-29	2023-10-20

Every Fixed Threshold

Fixed thresholds at Prineville
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	101	88	1898	64
35 C (95 F): Days	95	30	1998	12
40 C (104 F): Days	12	4	2022	4
90 F (32.2 C): Days	101	59	1901	28
100 F (37.8 C): Days	54	11	1996	2
0 C (32 F): Ice days (max	99	28	1993	3
0 C (32 F): Frost days (min	103	256	1899	161
-10 C (14 F): Days with min	103	56	1916	15
-20 C (-4 F): Days with min	58	13	1937	1
-30 C (-22 F): Days with min	10	3	1930	2
20 C (68 F): Tropical nights (min	5	2	1908	2
10 mm (0.39 in): Days with 10 mm or more rain	94	16	1981	1
25 mm (0.98 in): Days with 25 mm or more rain	35	3	1901	1
10 cm (3.9 in): Days with 10 cm or more snowfall	36	4	2019	4
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 1897.

Download the Data

Data for Prineville 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Prineville Threshold Days by Year (USC00356883)

Key Facts for Prineville Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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