Ephrata Threshold Days by Year (USC00362662)

18 fixed thresholds counted per year at Ephrata (USC00362662): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ephrata Thresholds

Ephrata: days with a maximum temperature at or above 30 C (86 F) in 78 years, most in 1939 with 93.
Ephrata: days with a maximum temperature at or below 0 C (32 F) in 78 years, most in 1904 with 54.
Ephrata: nights with a minimum temperature at or below 0 C (32 F) in 78 years, most in 1904 with 147.
Ephrata: nights with a minimum temperature at or below -10 C (14 F) in 78 years, most in 1904 with 44.
18 fixed thresholds have at least one qualifying day at Ephrata.

Days at or above 30 C (86 F)

78 years with a qualifying day

Days per year at Ephrata with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 93 in 1939.

Days at or above 30 C (86 F) per year at Ephrata
Year	Days	Decade average
1900	80	48.2
1901	58	48.2
1902	38	48.2
1903	40	48.2
1904	29	48.2
1905	40	48.2
1906	58	48.2
1907	33	48.2
1908	63	48.2
1909	43	48.2
1910	36	34.6
1911	58	34.6
1912	33	34.6
1913	34	34.6
1914	31	34.6
1915	21	34.6
1916	28	34.6
1917	20	34.6
1918	50	34.6
1922	33	35.4
1923	53	35.4
1924	32	35.4
1926	29	35.4
1927	23	35.4
1928	32	35.4
1929	46	35.4
1930	61	70.2
1931	46	70.2
1932	78	70.2
1933	72	70.2
1934	69	70.2
1935	61	70.2
1936	79	70.2
1937	72	70.2
1938	71	70.2
1939	93	70.2
1940	55	63.1
1941	80	63.1
1942	64	63.1
1943	86	63.1
1945	53	63.1
1946	52	63.1
1947	62	63.1
1948	45	63.1
1949	71	63.1
1950	45	50.4
1951	57	50.4
1952	60	50.4
1953	61	50.4
1954	50	50.4
1955	59	50.4
1956	33	50.4
1957	61	50.4
1958	26	50.4
1959	52	50.4
1960	17	41
1961	31	41
1962	36	41
1963	38	41
1964	52	41
1965	49	41
1966	64	41
1967	31	41
1968	47	41
1969	45	41
1970	41	21.8
1971	19	21.8
1972	17	21.8
1973	31	21.8
1974	20	21.8
1975	24	21.8
1976	17	21.8
1978	13	21.8
1979	14	21.8
1980	45	33.8
1981	22	33.8
1982	16	33.8
1983	52	33.8

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

First to last qualifying date each year at Ephrata
Year	First date	Last date
1900	1900-05-13	1900-10-06
1901	1901-05-24	1901-09-15
1902	1902-04-22	1902-09-08
1903	1903-04-30	1903-09-16
1904	1904-05-13	1904-09-12
1905	1905-05-04	1905-10-01
1906	1906-05-17	1906-09-21
1907	1907-05-14	1907-09-21
1908	1908-05-13	1908-10-18
1909	1909-05-15	1909-09-14
1910	1910-06-19	1910-09-27
1911	1911-05-11	1911-09-25
1912	1912-05-21	1912-09-11
1913	1913-05-03	1913-09-07
1914	1914-05-26	1914-09-23
1915	1915-04-25	1915-09-17
1916	1916-05-28	1916-10-08
1917	1917-07-01	1917-08-30
1918	1918-05-06	1918-08-26
1922	1922-04-09	1922-10-05
1923	1923-04-21	1923-09-04
1924	1924-05-06	1924-09-02
1926	1926-05-02	1926-10-05
1927	1927-04-20	1927-10-02
1928	1928-05-04	1928-09-13
1929	1929-04-07	1929-09-10
1930	1930-05-01	1930-09-26
1931	1931-05-29	1931-09-23
1932	1932-05-07	1932-09-22
1933	1933-05-20	1933-09-27
1934	1934-05-05	1934-09-24
1935	1935-04-27	1935-09-21
1936	1936-04-30	1936-09-23
1937	1937-05-22	1937-09-25
1938	1938-03-22	1938-10-17
1939	1939-05-06	1939-10-10
1940	1940-05-14	1940-09-21
1941	1941-04-14	1941-10-07
1942	1942-04-06	1942-09-19
1943	1943-05-06	1943-09-28
1945	1945-03-29	1945-09-29
1946	1946-04-23	1946-10-07
1947	1947-05-13	1947-09-19
1948	1948-05-11	1948-09-19
1949	1949-05-05	1949-10-11
1950	1950-06-06	1950-10-02
1951	1951-05-02	1951-10-05
1952	1952-06-04	1952-09-14
1953	1953-05-10	1953-09-30
1954	1954-05-02	1954-10-13
1955	1955-05-05	1955-08-27
1956	1956-05-13	1956-09-01
1957	1957-04-21	1957-09-22
1958	1958-06-30	1958-09-26
1959	1959-05-12	1959-10-06
1960	1960-04-23	1960-09-01
1961	1961-06-02	1961-09-24
1962	1962-04-26	1962-09-13
1963	1963-05-09	1963-09-12
1964	1964-05-19	1964-09-23
1965	1965-05-03	1965-09-23
1966	1966-06-04	1966-09-03
1967	1967-06-09	1967-09-18
1968	1968-06-06	1968-09-25
1969	1969-04-27	1969-09-17
1970	1970-05-09	1970-09-26
1971	1971-05-19	1971-09-09
1972	1972-05-24	1972-09-17
1973	1973-06-04	1973-09-05
1974	1974-04-29	1974-08-29
1975	1975-05-20	1975-08-27
1976	1976-04-17	1976-09-08
1978	1978-06-02	1978-08-23
1979	1979-05-09	1979-08-30
1980	1980-05-05	1980-09-22
1981	1981-05-25	1981-09-14
1982	1982-06-28	1982-09-02
1983	1983-06-12	1983-09-20

Every Fixed Threshold

Fixed thresholds at Ephrata
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	78	93	1939	52
35 C (95 F): Days	55	22	1943	4
40 C (104 F): Days	2	2	1936	1
90 F (32.2 C): Days	76	57	1939	27
100 F (37.8 C): Days	22	4	1900	4
0 C (32 F): Ice days (max	78	54	1904	23
0 C (32 F): Frost days (min	78	147	1904	108
-10 C (14 F): Days with min	78	44	1904	17
-20 C (-4 F): Days with min	22	5	1917	1
20 C (68 F): Tropical nights (min	78	38	1949	24
25 C (77 F): Days with min	5	1	1933	1
10 mm (0.39 in): Days with 10 mm or more rain	78	51	1975	45
25 mm (0.98 in): Days with 25 mm or more rain	78	18	1975	14
50 mm (1.97 in): Days with 50 mm or more rain	64	5	1902	3
100 mm (3.94 in): Days with 100 mm or more rain	11	2	1942	2
10 cm (3.9 in): Days with 10 cm or more snowfall	49	6	1966	3
25 cm (9.8 in): Days with 25 cm or more snowfall	18	2	1958	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1958	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1900.

Download the Data

Data for Ephrata 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).

Ephrata Threshold Days by Year (USC00362662)

Key Facts for Ephrata Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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