Ripley Threshold Days by Year (USC00467552)

17 fixed thresholds counted per year at Ripley (USC00467552): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ripley Thresholds

Ripley: days with a maximum temperature at or above 30 C (86 F) in 73 years, most in 1959 with 112.
Ripley: days with a maximum temperature at or above 90 F (32.2 C) in 73 years, most in 1987 with 73.
Ripley: days with a maximum temperature at or below 0 C (32 F) in 73 years, most in 2010 with 38.
Ripley: days with 10 mm (0.39 in) or more of precipitation in 73 years, most in 1972 with 62.
17 fixed thresholds have at least one qualifying day at Ripley.

Days at or above 30 C (86 F)

73 years with a qualifying day

Days per year at Ripley with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 112 in 1959.

Days at or above 30 C (86 F) per year at Ripley
Year	Days	Decade average
1942	95	90.7
1948	85	90.7
1949	92	90.7
1950	43	78.8
1951	71	78.8
1952	78	78.8
1953	88	78.8
1954	88	78.8
1957	91	78.8
1958	59	78.8
1959	112	78.8
1960	67	72.1
1961	70	72.1
1962	76	72.1
1963	63	72.1
1964	92	72.1
1965	85	72.1
1966	76	72.1
1967	56	72.1
1968	61	72.1
1969	75	72.1
1970	99	70.1
1971	69	70.1
1972	66	70.1
1973	86	70.1
1974	80	70.1
1975	68	70.1
1976	37	70.1
1979	56	70.1
1980	49	75.4
1981	44	75.4
1982	42	75.4
1983	93	75.4
1984	86	75.4
1985	75	75.4
1986	96	75.4
1987	101	75.4
1988	93	75.4
1990	43	45.3
1992	20	45.3
1993	60	45.3
1994	36	45.3
1995	57	45.3
1996	38	45.3
1997	32	45.3
1998	54	45.3
1999	68	45.3
2000	35	54.3
2001	50	54.3
2002	75	54.3
2003	31	54.3
2004	42	54.3
2005	66	54.3
2006	51	54.3
2007	92	54.3
2008	61	54.3
2009	40	54.3
2010	92	75.4
2011	69	75.4
2012	74	75.4
2013	40	75.4
2014	42	75.4
2016	85	75.4
2017	70	75.4
2018	104	75.4
2019	103	75.4
2020	74	72.3
2021	69	72.3
2022	54	72.3
2023	58	72.3
2024	83	72.3
2025	91	72.3
2026	77	72.3

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

First to last qualifying date each year at Ripley
Year	First date	Last date
1942	1942-04-05	1942-09-20
1948	1948-04-12	1948-11-05
1949	1949-05-03	1949-10-12
1950	1950-03-27	1950-09-10
1951	1951-04-28	1951-10-03
1952	1952-03-21	1952-10-01
1953	1953-05-11	1953-10-04
1954	1954-03-25	1954-10-14
1957	1957-04-19	1957-09-21
1958	1958-04-18	1958-09-26
1959	1959-04-01	1959-10-06
1960	1960-04-13	1960-09-09
1961	1961-04-24	1961-11-03
1962	1962-04-26	1962-10-15
1963	1963-04-02	1963-10-26
1964	1964-05-05	1964-09-26
1965	1965-05-01	1965-09-23
1966	1966-05-08	1966-09-11
1967	1967-05-27	1967-10-05
1968	1968-06-04	1968-09-24
1969	1969-04-17	1969-10-13
1970	1970-04-29	1970-09-27
1971	1971-04-13	1971-09-30
1972	1972-05-22	1972-09-26
1973	1973-03-14	1973-10-04
1974	1974-04-01	1974-09-13
1975	1975-05-21	1975-09-06
1976	1976-04-17	1976-08-26
1979	1979-05-07	1979-10-22
1980	1980-05-05	1980-09-21
1981	1981-05-23	1981-09-26
1982	1982-05-05	1982-10-08
1983	1983-05-07	1983-10-03
1984	1984-04-26	1984-09-25
1985	1985-04-18	1985-10-12
1986	1986-03-30	1986-10-03
1987	1987-04-20	1987-09-27
1988	1988-04-05	1988-10-01
1990	1990-04-26	1990-09-08
1992	1992-05-23	1992-09-10
1993	1993-05-09	1993-09-15
1994	1994-05-24	1994-09-16
1995	1995-05-25	1995-09-08
1996	1996-04-30	1996-08-24
1997	1997-05-20	1997-09-03
1998	1998-05-15	1998-10-01
1999	1999-04-23	1999-09-28
2000	2000-05-07	2000-09-24
2001	2001-04-10	2001-09-10
2002	2002-04-17	2002-10-05
2003	2003-06-24	2003-09-02
2004	2004-04-19	2004-09-24
2005	2005-05-12	2005-09-25
2006	2006-05-29	2006-08-30
2007	2007-04-26	2007-10-09
2008	2008-04-19	2008-10-13
2009	2009-04-25	2009-09-20
2010	2010-04-03	2010-10-11
2011	2011-04-11	2011-09-05
2012	2012-03-21	2012-09-08
2013	2013-04-11	2013-09-12
2014	2014-04-14	2014-09-07
2016	2016-05-27	2016-10-19
2017	2017-05-01	2017-10-08
2018	2018-04-14	2018-10-09
2019	2019-04-19	2019-10-04
2020	2020-03-29	2020-09-11
2021	2021-04-28	2021-09-20
2022	2022-04-24	2022-09-23
2023	2023-04-06	2023-10-07
2024	2024-04-16	2024-10-07
2025	2025-04-19	2025-10-01
2026	2026-03-23	2026-09-17

Every Fixed Threshold

Fixed thresholds at Ripley
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	73	112	1959	77
35 C (95 F): Days	54	35	1988	10
40 C (104 F): Days	1	4	1988	4
90 F (32.2 C): Days	73	73	1987	31
100 F (37.8 C): Days	12	14	1988	3
0 C (32 F): Ice days (max	73	38	2010	13
0 C (32 F): Frost days (min	72	144	1963	69
-10 C (14 F): Days with min	72	43	1958	19
-20 C (-4 F): Days with min	39	10	1963	2
-30 C (-22 F): Days with min	3	2	1994	2
20 C (68 F): Tropical nights (min	72	50	2025	44
10 mm (0.39 in): Days with 10 mm or more rain	73	62	1972	24
25 mm (0.98 in): Days with 25 mm or more rain	73	17	2004	7
50 mm (1.97 in): Days with 50 mm or more rain	51	5	2004	1
100 mm (3.94 in): Days with 100 mm or more rain	4	2	1985	1
10 cm (3.9 in): Days with 10 cm or more snowfall	32	4	1961	2
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1966	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1942.

Download the Data

Data for Ripley 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).

Ripley Threshold Days by Year (USC00467552)

Key Facts for Ripley Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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