Ruth Threshold Days by Year (USC00267175)

14 fixed thresholds counted per year at Ruth (USC00267175): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ruth Thresholds

Ruth: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 2016 with 17.
Ruth: days with a maximum temperature at or above 30 C (86 F) in 46 years, most in 1996 with 51.
Ruth: days with a maximum temperature at or below 0 C (32 F) in 46 years, most in 1964 with 56.
Ruth: days with 10 cm (3.9 in) or more of snowfall in 46 years, most in 2010 with 9.
14 fixed thresholds have at least one qualifying day at Ruth.

Days at or above 30 C (86 F)

46 years with a qualifying day

Days per year at Ruth with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 51 in 1996.

Days at or above 30 C (86 F) per year at Ruth
Year	Days	Decade average
1959	26	26
1960	22	15.9
1961	24	15.9
1962	8	15.9
1963	10	15.9
1964	16	15.9
1965	1	15.9
1966	23	15.9
1967	13	15.9
1968	10	15.9
1969	32	15.9
1970	25	22.5
1971	21	22.5
1972	25	22.5
1973	22	22.5
1974	24	22.5
1975	14	22.5
1976	20	22.5
1977	29	22.5
1986	29	26.5
1987	11	26.5
1988	37	26.5
1989	29	26.5
1990	42	34.6
1991	27	34.6
1992	31	34.6
1993	17	34.6
1994	49	34.6
1995	24	34.6
1996	51	34.6
1998	36	34.6
2007	40	26
2008	30	26
2009	8	26
2010	26	22.2
2011	8	22.2
2012	20	22.2
2013	26	22.2
2014	14	22.2
2015	23	22.2
2016	27	22.2
2017	32	22.2
2018	26	22.2
2019	20	22.2
2020	39	41.5
2021	44	41.5

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

First to last qualifying date each year at Ruth
Year	First date	Last date
1959	1959-06-23	1959-08-11
1960	1960-07-14	1960-08-21
1961	1961-06-18	1961-08-19
1962	1962-06-26	1962-08-17
1963	1963-07-14	1963-08-16
1964	1964-07-12	1964-09-14
1965	1965-08-07	1965-08-07
1966	1966-07-06	1966-08-18
1967	1967-06-30	1967-08-18
1968	1968-06-18	1968-07-23
1969	1969-07-03	1969-08-27
1970	1970-05-18	1970-08-20
1971	1971-06-22	1971-08-14
1972	1972-06-30	1972-08-12
1973	1973-06-26	1973-08-21
1974	1974-06-12	1974-08-29
1975	1975-07-07	1975-08-11
1976	1976-06-28	1976-09-06
1977	1977-06-05	1977-09-07
1986	1986-06-24	1986-09-06
1987	1987-06-26	1987-09-02
1988	1988-06-24	1988-09-09
1989	1989-06-15	1989-08-08
1990	1990-06-21	1990-09-14
1991	1991-07-03	1991-08-31
1992	1992-06-22	1992-08-21
1993	1993-06-27	1993-09-12
1994	1994-06-11	1994-08-31
1995	1995-07-08	1995-09-16
1996	1996-06-05	1996-10-10
1998	1998-06-30	1998-08-31
2007	2007-06-16	2007-09-04
2008	2008-06-22	2008-08-30
2009	2009-07-17	2009-08-22
2010	2010-06-07	2010-09-04
2011	2011-07-03	2011-09-22
2012	2012-06-03	2012-08-19
2013	2013-06-09	2013-08-19
2014	2014-06-30	2014-08-03
2015	2015-06-19	2015-09-13
2016	2016-06-21	2016-08-21
2017	2017-06-20	2017-09-07
2018	2018-06-26	2018-08-21
2019	2019-07-19	2019-09-02
2020	2020-06-06	2020-09-07
2021	2021-06-04	2021-09-10

Every Fixed Threshold

Fixed thresholds at Ruth
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	46	51	1996	44
35 C (95 F): Days	9	5	1998	2
90 F (32.2 C): Days	40	27	1994	17
100 F (37.8 C): Days	1	1	1998	1
0 C (32 F): Ice days (max	46	56	1964	19
0 C (32 F): Frost days (min	35	259	1964	233
-10 C (14 F): Days with min	35	114	1966	92
-20 C (-4 F): Days with min	35	40	1964	7
-30 C (-22 F): Days with min	14	5	1972	2
10 mm (0.39 in): Days with 10 mm or more rain	48	17	2016	7
25 mm (0.98 in): Days with 25 mm or more rain	26	4	1967	2
50 mm (1.97 in): Days with 50 mm or more rain	1	0	n/a	2
10 cm (3.9 in): Days with 10 cm or more snowfall	46	9	2010	4
25 cm (9.8 in): Days with 25 cm or more snowfall	15	2	1967	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1959.

Download the Data

Data for Ruth 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).

Ruth Threshold Days by Year (USC00267175)

Key Facts for Ruth Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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