Philo 3 SW Threshold Days by Year (USC00336600)

18 fixed thresholds counted per year at Philo 3 SW (USC00336600): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Philo 3 SW Thresholds

Philo 3 SW: days with a maximum temperature at or below 0 C (32 F) in 115 years, most in 1995 with 70.
Philo 3 SW: nights with a minimum temperature at or below 0 C (32 F) in 115 years, most in 1997 with 151.
Philo 3 SW: nights with a minimum temperature at or below -10 C (14 F) in 115 years, most in 1958 with 43.
Philo 3 SW: nights with a minimum temperature at or above 20 C (68 F) in 113 years, most in 2010 with 44.
18 fixed thresholds have at least one qualifying day at Philo 3 SW.

Days at or above 30 C (86 F)

111 years with a qualifying day

Days per year at Philo 3 SW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 104 in 1939.

Days at or above 30 C (86 F) per year at Philo 3 SW
Year	Days	Decade average
1896	48	69.3
1897	65	69.3
1898	78	69.3
1899	86	69.3
1900	74	50.6
1901	58	50.6
1902	59	50.6
1903	61	50.6
1904	39	50.6
1905	38	50.6
1906	60	50.6
1907	25	50.6
1908	65	50.6
1909	27	50.6
1910	48	44.1
1911	59	44.1
1912	25	44.1
1913	53	44.1
1914	60	44.1
1915	22	44.1
1916	50	44.1
1917	18	44.1
1918	51	44.1
1919	55	44.1
1920	24	36.4
1921	52	36.4
1922	36	36.4
1923	35	36.4
1924	28	36.4
1925	55	36.4
1926	36	36.4
1927	34	36.4
1928	36	36.4
1929	28	36.4
1930	69	73.3
1931	62	73.3
1932	56	73.3
1933	59	73.3
1934	97	73.3
1935	61	73.3
1936	100	73.3
1937	66	73.3
1938	59	73.3
1939	104	73.3
1940	71	64.2
1941	98	64.2
1942	72	64.2
1943	67	64.2
1944	87	64.2
1945	47	64.2
1946	49	64.2
1947	58	64.2
1948	43	64.2
1949	50	64.2
1950	15	54.4
1951	50	54.4
1952	69	54.4
1953	81	54.4
1954	51	54.4
1955	69	54.4
1956	41	54.4
1957	47	54.4
1958	39	54.4
1959	82	54.4
1960	40	40.2
1961	40	40.2
1962	49	40.2
1963	38	40.2
1964	58	40.2
1965	43	40.2
1966	42	40.2
1967	33	40.2
1968	37	40.2
1969	22	40.2
1970	40	19.1
1971	20	19.1
1972	20	19.1
1973	27	19.1
1974	11	19.1
1975	22	19.1
1976	8	19.1
1977	21	19.1
1978	19	19.1
1979	3	19.1
1980	18	30.3
1981	15	30.3
1982	19	30.3
1983	60	30.3
1984	33	30.3
1985	23	30.3
1986	25	30.3
1987	44	30.3
1988	49	30.3
1989	17	30.3
1990	8	10.1
1991	23	10.1
1993	12	10.1
1994	4	10.1
1995	6	10.1
1997	1	10.1
1998	2	10.1
1999	25	10.1
2000	1	14.8
2001	3	14.8
2002	20	14.8
2005	17	14.8
2008	31	14.8
2009	17	14.8
2010	59	57.7
2011	50	57.7
2012	64	57.7

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

First to last qualifying date each year at Philo 3 SW
Year	First date	Last date
1896	1896-04-12	1896-09-14
1897	1897-06-11	1897-10-16
1898	1898-05-01	1898-10-03
1899	1899-04-29	1899-09-24
1900	1900-05-02	1900-10-06
1901	1901-05-24	1901-09-07
1902	1902-04-22	1902-09-23
1903	1903-05-16	1903-10-04
1904	1904-05-24	1904-09-29
1905	1905-05-04	1905-09-30
1906	1906-05-15	1906-09-22
1907	1907-06-18	1907-09-20
1908	1908-05-17	1908-10-06
1909	1909-05-15	1909-09-14
1910	1910-06-17	1910-10-03
1911	1911-05-10	1911-09-08
1912	1912-05-23	1912-09-10
1913	1913-05-03	1913-09-06
1914	1914-04-18	1914-09-22
1915	1915-04-25	1915-09-16
1916	1916-05-14	1916-10-08
1917	1917-06-13	1917-09-02
1918	1918-05-22	1918-08-26
1919	1919-05-29	1919-10-04
1920	1920-06-10	1920-09-27
1921	1921-04-26	1921-09-14
1922	1922-06-16	1922-10-06
1923	1923-05-31	1923-09-27
1924	1924-06-19	1924-09-12
1925	1925-04-24	1925-09-26
1926	1926-05-02	1926-09-22
1927	1927-05-09	1927-10-06
1928	1928-05-04	1928-10-13
1929	1929-03-25	1929-09-28
1930	1930-04-11	1930-09-26
1931	1931-05-18	1931-09-23
1932	1932-05-07	1932-09-19
1933	1933-05-24	1933-09-26
1934	1934-05-04	1934-09-26
1935	1935-04-27	1935-09-19
1936	1936-05-07	1936-09-27
1937	1937-05-27	1937-10-06
1938	1938-04-27	1938-10-11
1939	1939-04-24	1939-10-11
1940	1940-05-06	1940-10-14
1941	1941-04-13	1941-10-08
1942	1942-04-26	1942-10-08
1943	1943-05-06	1943-09-29
1944	1944-05-03	1944-10-06
1945	1945-05-21	1945-09-28
1946	1946-04-22	1946-10-05
1947	1947-05-28	1947-10-16
1948	1948-04-20	1948-09-19
1949	1949-05-04	1949-10-10
1950	1950-05-05	1950-08-28
1951	1951-05-01	1951-10-05
1952	1952-04-21	1952-10-02
1953	1953-05-10	1953-10-19
1954	1954-05-31	1954-10-02
1955	1955-05-04	1955-09-19
1956	1956-05-12	1956-09-05
1957	1957-04-27	1957-09-21
1958	1958-05-31	1958-09-26
1959	1959-05-02	1959-10-06
1960	1960-04-24	1960-09-09
1961	1961-06-11	1961-09-25
1962	1962-05-13	1962-09-13
1963	1963-05-09	1963-10-07
1964	1964-05-19	1964-09-21
1965	1965-05-09	1965-09-21
1966	1966-06-09	1966-09-03
1967	1967-05-27	1967-09-15
1968	1968-06-06	1968-09-24
1969	1969-05-29	1969-10-13
1970	1970-04-30	1970-09-25
1971	1971-05-18	1971-09-29
1972	1972-05-25	1972-09-17
1973	1973-06-10	1973-09-05
1974	1974-05-14	1974-08-13
1975	1975-06-19	1975-08-26
1976	1976-06-10	1976-08-25
1977	1977-05-17	1977-09-02
1978	1978-05-27	1978-09-22
1979	1979-08-07	1979-08-10
1980	1980-06-27	1980-09-21
1981	1981-06-14	1981-09-13
1982	1982-05-06	1982-08-16
1983	1983-06-12	1983-09-20
1984	1984-06-05	1984-09-22
1985	1985-04-21	1985-09-09
1986	1986-04-27	1986-09-30
1987	1987-05-28	1987-09-10
1988	1988-05-15	1988-08-18
1989	1989-05-30	1989-08-05
1990	1990-04-27	1990-09-06
1991	1991-06-20	1991-09-16
1993	1993-06-18	1993-09-02
1994	1994-06-16	1994-06-20
1995	1995-07-14	1995-08-17
1997	1997-07-27	1997-07-27
1998	1998-09-06	1998-09-14
1999	1999-06-09	1999-08-17
2000	2000-08-01	2000-08-01
2001	2001-08-07	2001-08-09
2002	2002-06-25	2002-09-10
2005	2005-06-25	2005-08-20
2008	2008-06-05	2008-09-14
2009	2009-04-24	2009-09-06
2010	2010-04-02	2010-10-10
2011	2011-05-12	2011-09-04
2012	2012-05-02	2012-09-06

Every Fixed Threshold

Fixed thresholds at Philo 3 SW
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	111	104	1939	64
35 C (95 F): Days	61	27	1934	9
40 C (104 F): Days	4	3	1934	3
90 F (32.2 C): Days	103	72	1936	30
100 F (37.8 C): Days	18	10	1936	1
0 C (32 F): Ice days (max	115	70	1995	15
0 C (32 F): Frost days (min	115	151	1997	88
-10 C (14 F): Days with min	115	43	1958	4
-20 C (-4 F): Days with min	73	10	1977	1
-30 C (-22 F): Days with min	1	1	1994	1
20 C (68 F): Tropical nights (min	113	44	2010	29
25 C (77 F): Days with min	14	3	1930	2
10 mm (0.39 in): Days with 10 mm or more rain	111	56	2011	35
25 mm (0.98 in): Days with 25 mm or more rain	111	13	2005	6
50 mm (1.97 in): Days with 50 mm or more rain	64	5	1937	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1913	1
10 cm (3.9 in): Days with 10 cm or more snowfall	56	6	2003	5
25 cm (9.8 in): Days with 25 cm or more snowfall	5	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 1896.

Download the Data

Data for Philo 3 SW 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).

Philo 3 SW Threshold Days by Year (USC00336600)

Key Facts for Philo 3 SW Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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