Independence 1W Threshold Days by Year (USC00224377)

17 fixed thresholds counted per year at Independence 1W (USC00224377): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Independence 1W Thresholds

Independence 1W: days with a maximum temperature at or above 30 C (86 F) in 62 years, most in 1987 with 125.
Independence 1W: days with a maximum temperature at or above 90 F (32.2 C) in 62 years, most in 1987 with 93.
Independence 1W: days with a maximum temperature at or below 0 C (32 F) in 62 years, most in 1978 with 24.
Independence 1W: nights with a minimum temperature at or below 0 C (32 F) in 62 years, most in 2014 with 97.
17 fixed thresholds have at least one qualifying day at Independence 1W.

Days at or above 30 C (86 F)

62 years with a qualifying day

Days per year at Independence 1W with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 125 in 1987.

Days at or above 30 C (86 F) per year at Independence 1W
Year	Days	Decade average
1958	97	98
1959	99	98
1960	91	83.7
1961	80	83.7
1962	92	83.7
1963	81	83.7
1964	89	83.7
1965	78	83.7
1966	73	83.7
1967	70	83.7
1968	87	83.7
1969	96	83.7
1970	93	83.8
1971	90	83.8
1972	95	83.8
1973	94	83.8
1974	59	83.8
1975	78	83.8
1976	61	83.8
1977	108	83.8
1978	96	83.8
1979	64	83.8
1980	106	89.7
1981	77	89.7
1982	58	89.7
1983	77	89.7
1984	55	89.7
1985	118	89.7
1986	102	89.7
1987	125	89.7
1988	104	89.7
1989	75	89.7
1990	95	83.4
1991	71	83.4
1992	56	83.4
1993	90	83.4
1994	75	83.4
1995	86	83.4
1996	78	83.4
1997	70	83.4
1998	121	83.4
1999	92	83.4
2000	103	83.8
2001	78	83.8
2002	85	83.8
2003	47	83.8
2004	56	83.8
2005	107	83.8
2006	100	83.8
2007	113	83.8
2008	85	83.8
2009	64	83.8
2010	122	91.1
2011	105	91.1
2012	97	91.1
2013	76	91.1
2014	60	91.1
2015	82	91.1
2016	99	91.1
2017	67	91.1
2018	98	91.1
2019	105	91.1

For each year, a bar from the first to the last day at Independence 1W meeting 30 C (86 F).

First to last qualifying date each year at Independence 1W
Year	First date	Last date
1958	1958-05-15	1958-09-27
1959	1959-05-01	1959-10-11
1960	1960-05-18	1960-10-03
1961	1961-05-22	1961-10-13
1962	1962-05-08	1962-10-15
1963	1963-05-09	1963-10-28
1964	1964-05-19	1964-09-24
1965	1965-04-24	1965-09-19
1966	1966-06-09	1966-09-30
1967	1967-05-12	1967-10-16
1968	1968-05-25	1968-09-29
1969	1969-05-03	1969-10-13
1970	1970-05-22	1970-10-03
1971	1971-04-20	1971-10-17
1972	1972-05-20	1972-09-25
1973	1973-05-11	1973-10-13
1974	1974-05-18	1974-09-13
1975	1975-05-22	1975-10-14
1976	1976-06-10	1976-10-13
1977	1977-05-08	1977-10-02
1978	1978-04-08	1978-09-22
1979	1979-05-20	1979-10-20
1980	1980-04-22	1980-10-11
1981	1981-05-30	1981-10-06
1982	1982-05-05	1982-10-06
1983	1983-06-14	1983-09-29
1984	1984-05-26	1984-10-29
1985	1985-04-19	1985-10-14
1986	1986-04-05	1986-10-03
1987	1987-04-20	1987-09-18
1988	1988-05-13	1988-09-29
1989	1989-04-23	1989-09-13
1990	1990-06-03	1990-10-03
1991	1991-05-14	1991-10-04
1992	1992-05-18	1992-09-19
1993	1993-05-08	1993-09-26
1994	1994-04-22	1994-10-04
1995	1995-05-14	1995-10-12
1996	1996-05-06	1996-09-13
1997	1997-05-19	1997-10-12
1998	1998-05-14	1998-10-06
1999	1999-06-02	1999-09-29
2000	2000-05-13	2000-11-01
2001	2001-04-11	2001-09-24
2002	2002-04-19	2002-10-03
2003	2003-06-11	2003-09-12
2004	2004-05-22	2004-09-24
2005	2005-05-12	2005-10-20
2006	2006-04-18	2006-10-05
2007	2007-05-07	2007-10-19
2008	2008-05-21	2008-09-14
2009	2009-05-28	2009-09-10
2010	2010-05-07	2010-10-12
2011	2011-04-10	2011-09-30
2012	2012-05-03	2012-09-28
2013	2013-05-29	2013-10-06
2014	2014-05-05	2014-10-03
2015	2015-06-06	2015-10-16
2016	2016-05-27	2016-10-20
2017	2017-05-19	2017-10-15
2018	2018-05-09	2018-10-09
2019	2019-05-17	2019-10-07

Every Fixed Threshold

Fixed thresholds at Independence 1W
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	62	125	1987	105
35 C (95 F): Days	53	50	1980	3
40 C (104 F): Days	5	5	1980	1
90 F (32.2 C): Days	62	93	1987	44
100 F (37.8 C): Days	17	14	2000	2
0 C (32 F): Ice days (max	62	24	1978	2
0 C (32 F): Frost days (min	62	97	2014	75
-10 C (14 F): Days with min	57	22	1963	2
-20 C (-4 F): Days with min	6	3	1985	3
20 C (68 F): Tropical nights (min	62	102	2018	79
25 C (77 F): Days with min	17	9	1980	1
10 mm (0.39 in): Days with 10 mm or more rain	62	60	2019	60
25 mm (0.98 in): Days with 25 mm or more rain	62	27	2009	26
50 mm (1.97 in): Days with 50 mm or more rain	60	10	2019	10
100 mm (3.94 in): Days with 100 mm or more rain	23	2	1978	1
10 cm (3.9 in): Days with 10 cm or more snowfall	5	2	1988	1
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1963	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1958.

Download the Data

Data for Independence 1W 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).

Independence 1W Threshold Days by Year (USC00224377)

Key Facts for Independence 1W Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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