Clayton Wtp Threshold Days by Year (USC00311820)

16 fixed thresholds counted per year at Clayton Wtp (USC00311820): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Clayton Wtp Thresholds

Clayton Wtp: days with a maximum temperature at or above 30 C (86 F) in 58 years, most in 1970 with 110.
Clayton Wtp: days with a maximum temperature at or above 90 F (32.2 C) in 58 years, most in 1988 with 78.
Clayton Wtp: days with 10 mm (0.39 in) or more of precipitation in 57 years, most in 2003 with 56.
Clayton Wtp: days with 25 mm (0.98 in) or more of precipitation in 57 years, most in 1959 with 25.
16 fixed thresholds have at least one qualifying day at Clayton Wtp.

Days at or above 30 C (86 F)

58 years with a qualifying day

Days per year at Clayton Wtp with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 110 in 1970.

Days at or above 30 C (86 F) per year at Clayton Wtp
Year	Days	Decade average
1956	89	84.5
1957	83	84.5
1958	75	84.5
1959	91	84.5
1960	81	80.9
1961	80	80.9
1962	84	80.9
1963	89	80.9
1964	77	80.9
1966	77	80.9
1967	71	80.9
1969	88	80.9
1970	110	91
1971	97	91
1972	81	91
1973	106	91
1975	86	91
1976	69	91
1977	106	91
1978	102	91
1979	62	91
1980	105	89.7
1981	87	89.7
1983	84	89.7
1985	92	89.7
1986	93	89.7
1987	70	89.7
1988	97	89.7
1991	72	87
1998	102	87
1999	87	87
2000	83	79.2
2001	68	79.2
2002	102	79.2
2003	63	79.2
2004	61	79.2
2005	83	79.2
2006	74	79.2
2007	106	79.2
2008	80	79.2
2009	72	79.2
2010	106	83.3
2011	95	83.3
2012	72	83.3
2013	59	83.3
2014	61	83.3
2015	79	83.3
2016	95	83.3
2017	71	83.3
2018	96	83.3
2019	99	83.3
2020	98	90.7
2021	100	90.7
2022	109	90.7
2023	66	90.7
2024	80	90.7
2025	73	90.7
2026	109	90.7

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

First to last qualifying date each year at Clayton Wtp
Year	First date	Last date
1956	1956-05-12	1956-09-23
1957	1957-04-21	1957-09-23
1958	1958-04-19	1958-10-10
1959	1959-04-08	1959-10-05
1960	1960-04-23	1960-09-21
1961	1961-04-24	1961-10-31
1962	1962-05-01	1962-10-12
1963	1963-04-03	1963-09-21
1964	1964-04-20	1964-09-29
1966	1966-05-29	1966-09-11
1967	1967-04-02	1967-10-06
1969	1969-04-26	1969-09-17
1970	1970-04-21	1970-09-27
1971	1971-04-13	1971-09-21
1972	1972-04-15	1972-09-27
1973	1973-03-14	1973-10-06
1975	1975-05-16	1975-10-14
1976	1976-03-04	1976-09-10
1977	1977-04-11	1977-10-03
1978	1978-04-02	1978-09-28
1979	1979-05-31	1979-09-22
1980	1980-04-23	1980-09-24
1981	1981-04-12	1981-10-07
1983	1983-05-14	1983-09-20
1985	1985-03-29	1985-10-15
1986	1986-03-31	1986-10-05
1987	1987-05-03	1987-09-18
1988	1988-05-20	1988-09-24
1991	1991-03-23	1991-09-19
1998	1998-03-31	1998-10-02
1999	1999-04-05	1999-09-09
2000	2000-05-07	2000-10-07
2001	2001-04-08	2001-09-24
2002	2002-04-17	2002-10-06
2003	2003-05-09	2003-09-05
2004	2004-05-08	2004-09-18
2005	2005-05-13	2005-10-21
2006	2006-04-15	2006-09-25
2007	2007-04-26	2007-10-10
2008	2008-06-01	2008-09-16
2009	2009-04-25	2009-09-25
2010	2010-04-03	2010-09-26
2011	2011-05-23	2011-10-18
2012	2012-05-03	2012-10-03
2013	2013-04-11	2013-10-07
2014	2014-04-03	2014-10-12
2015	2015-05-13	2015-09-21
2016	2016-03-17	2016-10-20
2017	2017-04-22	2017-10-10
2018	2018-05-12	2018-10-09
2019	2019-05-18	2019-10-05
2020	2020-03-21	2020-09-15
2021	2021-04-08	2021-10-17
2022	2022-04-26	2022-11-08
2023	2023-04-06	2023-09-13
2024	2024-04-03	2024-11-09
2025	2025-04-05	2025-09-27
2026	2026-03-12	2026-10-15

Every Fixed Threshold

Fixed thresholds at Clayton Wtp
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	58	110	1970	109
35 C (95 F): Days	52	40	1988	20
40 C (104 F): Days	1	2	1988	2
90 F (32.2 C): Days	58	78	1988	65
100 F (37.8 C): Days	18	10	1988	3
0 C (32 F): Ice days (max	41	8	1980	2
0 C (32 F): Frost days (min	56	104	2000	48
-10 C (14 F): Days with min	41	10	1963	2
20 C (68 F): Tropical nights (min	56	96	2020	78
25 C (77 F): Days with min	17	14	1988	2
10 mm (0.39 in): Days with 10 mm or more rain	57	56	2003	30
25 mm (0.98 in): Days with 25 mm or more rain	57	25	1959	10
50 mm (1.97 in): Days with 50 mm or more rain	54	7	2004	2
100 mm (3.94 in): Days with 100 mm or more rain	16	2	2017	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1999	1
10 cm (3.9 in): Days with 10 cm or more snowfall	13	2	1973	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1956.

Download the Data

Data for Clayton Wtp 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).

Clayton Wtp Threshold Days by Year (USC00311820)

Key Facts for Clayton Wtp Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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