Owyhee Threshold Days by Year (USC00265869)

14 fixed thresholds counted per year at Owyhee (USC00265869): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Owyhee Thresholds

Owyhee: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 1984 with 18.
Owyhee: days with a maximum temperature at or above 30 C (86 F) in 27 years, most in 1981 with 54.
Owyhee: days with a maximum temperature at or above 90 F (32.2 C) in 27 years, most in 1981 with 31.
Owyhee: days with a maximum temperature at or below 0 C (32 F) in 27 years, most in 1955 with 55.
14 fixed thresholds have at least one qualifying day at Owyhee.

Days at or above 30 C (86 F)

27 years with a qualifying day

Days per year at Owyhee with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 54 in 1981.

Days at or above 30 C (86 F) per year at Owyhee
Year	Days	Decade average
1949	28	28
1950	24	36.2
1951	28	36.2
1952	22	36.2
1953	36	36.2
1954	40	36.2
1955	48	36.2
1956	38	36.2
1957	44	36.2
1958	35	36.2
1959	47	36.2
1960	47	36
1961	47	36
1962	19	36
1963	31	36
1964	30	36
1965	13	36
1966	44	36
1967	52	36
1968	34	36
1969	43	36
1978	30	35.5
1979	41	35.5
1980	27	34.3
1981	54	34.3
1983	25	34.3
1984	31	34.3

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

First to last qualifying date each year at Owyhee
Year	First date	Last date
1949	1949-06-10	1949-09-23
1950	1950-07-21	1950-09-06
1951	1951-06-15	1951-09-16
1952	1952-07-04	1952-09-03
1953	1953-07-03	1953-09-13
1954	1954-05-19	1954-09-21
1955	1955-06-07	1955-09-11
1956	1956-06-27	1956-09-18
1957	1957-06-03	1957-09-07
1958	1958-06-23	1958-09-07
1959	1959-06-12	1959-09-11
1960	1960-06-13	1960-09-12
1961	1961-06-16	1961-08-28
1962	1962-06-24	1962-09-18
1963	1963-07-19	1963-09-29
1964	1964-06-25	1964-08-25
1965	1965-07-06	1965-08-10
1966	1966-05-26	1966-09-22
1967	1967-06-29	1967-09-28
1968	1968-06-17	1968-09-10
1969	1969-06-04	1969-09-07
1978	1978-07-10	1978-09-03
1979	1979-06-10	1979-09-18
1980	1980-07-07	1980-09-05
1981	1981-06-22	1981-09-19
1983	1983-05-27	1983-09-06
1984	1984-05-29	1984-09-20

Every Fixed Threshold

Fixed thresholds at Owyhee
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	27	54	1981	31
35 C (95 F): Days	16	7	1960	5
90 F (32.2 C): Days	27	31	1981	7
0 C (32 F): Ice days (max	27	55	1955	29
0 C (32 F): Frost days (min	27	197	1955	185
-10 C (14 F): Days with min	27	63	1952	48
-20 C (-4 F): Days with min	24	22	1949	10
-30 C (-22 F): Days with min	7	6	1949	1
20 C (68 F): Tropical nights (min	14	3	1968	2
10 mm (0.39 in): Days with 10 mm or more rain	31	18	1984	18
25 mm (0.98 in): Days with 25 mm or more rain	12	3	1968	1
50 mm (1.97 in): Days with 50 mm or more rain	2	1	1963	1
10 cm (3.9 in): Days with 10 cm or more snowfall	15	10	1984	10
25 cm (9.8 in): Days with 25 cm or more snowfall	3	2	1983	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

Download the Data

Data for Owyhee 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).

Owyhee Threshold Days by Year (USC00265869)

Key Facts for Owyhee Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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