Clarion 3 SW Threshold Days by Year (USC00361485)

15 fixed thresholds counted per year at Clarion 3 SW (USC00361485): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Clarion 3 SW Thresholds

Clarion 3 SW: days with 10 mm (0.39 in) or more of precipitation in 101 years, most in 1942 with 55.
Clarion 3 SW: days with 25 mm (0.98 in) or more of precipitation in 101 years, most in 1893 with 16.
Clarion 3 SW: nights with a minimum temperature at or below 0 C (32 F) in 66 years, most in 1966 with 179.
Clarion 3 SW: nights with a minimum temperature at or below -10 C (14 F) in 66 years, most in 1960 with 61.
15 fixed thresholds have at least one qualifying day at Clarion 3 SW.

Days at or above 30 C (86 F)

63 years with a qualifying day

Days per year at Clarion 3 SW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 54 in 1959.

Days at or above 30 C (86 F) per year at Clarion 3 SW
Year	Days	Decade average
1944	50	38.5
1945	42	38.5
1946	32	38.5
1947	37	38.5
1948	28	38.5
1949	42	38.5
1950	11	30.8
1951	23	30.8
1952	37	30.8
1953	41	30.8
1954	33	30.8
1955	48	30.8
1956	17	30.8
1957	26	30.8
1958	18	30.8
1959	54	30.8
1960	20	27
1962	15	27
1963	20	27
1964	40	27
1965	27	27
1966	47	27
1967	18	27
1968	33	27
1969	23	27
1970	27	20.9
1971	19	20.9
1972	2	20.9
1974	22	20.9
1975	36	20.9
1976	17	20.9
1977	26	20.9
1978	22	20.9
1979	17	20.9
1980	26	27.8
1981	26	27.8
1982	21	27.8
1983	41	27.8
1984	18	27.8
1985	15	27.8
1986	34	27.8
1987	41	27.8
1992	49	27.8
1995	34	27.8
1996	6	27.8
1997	19	27.8
1998	27	27.8
1999	32	27.8
2000	8	19.1
2001	27	19.1
2002	45	19.1
2003	11	19.1
2004	3	19.1
2005	43	19.1
2006	17	19.1
2007	17	19.1
2008	13	19.1
2009	7	19.1
2010	23	19
2011	19	19
2012	23	19
2013	11	19
2026	13	13

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

First to last qualifying date each year at Clarion 3 SW
Year	First date	Last date
1944	1944-05-03	1944-08-21
1945	1945-05-21	1945-09-10
1946	1946-06-11	1946-10-06
1947	1947-06-11	1947-09-19
1948	1948-05-11	1948-09-17
1949	1949-05-04	1949-10-10
1950	1950-05-05	1950-08-28
1951	1951-06-03	1951-10-05
1952	1952-06-08	1952-09-14
1953	1953-05-10	1953-09-30
1954	1954-04-21	1954-09-29
1955	1955-05-04	1955-09-19
1956	1956-05-30	1956-09-01
1957	1957-04-27	1957-09-12
1958	1958-04-24	1958-09-06
1959	1959-05-06	1959-09-29
1960	1960-04-23	1960-09-08
1962	1962-05-23	1962-09-13
1963	1963-06-10	1963-07-29
1964	1964-05-19	1964-09-10
1965	1965-06-20	1965-09-22
1966	1966-06-05	1966-09-03
1967	1967-06-08	1967-08-03
1968	1968-06-05	1968-09-04
1969	1969-05-07	1969-09-01
1970	1970-05-01	1970-09-24
1971	1971-05-18	1971-09-15
1972	1972-07-20	1972-07-22
1974	1974-04-28	1974-08-26
1975	1975-05-19	1975-08-28
1976	1976-04-17	1976-09-09
1977	1977-05-17	1977-09-01
1978	1978-05-26	1978-09-21
1979	1979-05-08	1979-08-08
1980	1980-05-05	1980-09-01
1981	1981-06-05	1981-08-27
1982	1982-05-18	1982-09-14
1983	1983-06-11	1983-09-19
1984	1984-06-08	1984-09-13
1985	1985-04-23	1985-09-03
1986	1986-04-26	1986-09-30
1987	1987-04-21	1987-09-10
1992	1992-05-11	1992-09-16
1995	1995-06-19	1995-09-07
1996	1996-05-19	1996-08-24
1997	1997-06-22	1997-08-14
1998	1998-05-16	1998-09-27
1999	1999-05-31	1999-09-04
2000	2000-05-08	2000-09-03
2001	2001-05-04	2001-09-10
2002	2002-04-17	2002-09-21
2003	2003-06-25	2003-08-22
2004	2004-05-14	2004-07-05
2005	2005-06-06	2005-08-21
2006	2006-05-30	2006-08-04
2007	2007-06-08	2007-10-09
2008	2008-06-07	2008-09-06
2009	2009-04-26	2009-08-18
2010	2010-05-28	2010-09-25
2011	2011-05-31	2011-09-04
2012	2012-05-04	2012-09-01
2013	2013-05-22	2013-09-12
2026	2026-05-19	2026-07-16

Every Fixed Threshold

Fixed thresholds at Clarion 3 SW
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	63	54	1959	13
35 C (95 F): Days	17	6	1944	1
90 F (32.2 C): Days	54	23	1944	4
0 C (32 F): Ice days (max	63	65	1962	24
0 C (32 F): Frost days (min	66	179	1966	66
-10 C (14 F): Days with min	66	61	1960	22
-20 C (-4 F): Days with min	57	19	1963	7
-30 C (-22 F): Days with min	11	4	1963	1
20 C (68 F): Tropical nights (min	35	11	1980	2
10 mm (0.39 in): Days with 10 mm or more rain	101	55	1942	13
25 mm (0.98 in): Days with 25 mm or more rain	101	16	1893	2
50 mm (1.97 in): Days with 50 mm or more rain	56	5	1911	1
100 mm (3.94 in): Days with 100 mm or more rain	8	2	2004	2
10 cm (3.9 in): Days with 10 cm or more snowfall	45	6	1960	2
25 cm (9.8 in): Days with 25 cm or more snowfall	7	1	1948	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1944.

Download the Data

Data for Clarion 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Clarion 3 SW Threshold Days by Year (USC00361485)

Key Facts for Clarion 3 SW Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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