Covina City Yard Fc387B Threshold Days by Year (USC00042090)

5 fixed thresholds counted per year at Covina City Yard Fc387B (USC00042090): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Covina City Yard Fc387B Thresholds

Covina City Yard Fc387B: days with 10 mm (0.39 in) or more of precipitation in 78 years, most in 1983 with 31.
Covina City Yard Fc387B: days with 25 mm (0.98 in) or more of precipitation in 74 years, most in 1978 with 14.
Covina City Yard Fc387B: days with 50 mm (1.97 in) or more of precipitation in 54 years, most in 2010 with 5.
Covina City Yard Fc387B: days with 100 mm (3.94 in) or more of precipitation in 7 years, most in 1934 with 1.
5 fixed thresholds have at least one qualifying day at Covina City Yard Fc387B.

Days with 10 mm (0.39 in) or more of precipitation

78 years with a qualifying day

Days per year at Covina City Yard Fc387B with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 1983.

Days with 10 mm (0.39 in) or more of precipitation per year at Covina City Yard Fc387B
Year	Days	Decade average
1931	12	11.5
1932	6	11.5
1933	10	11.5
1934	14	11.5
1935	10	11.5
1938	17	11.5
1942	7	9.7
1945	11	9.7
1946	14	9.7
1947	7	9.7
1948	12	9.7
1949	7	9.7
1950	10	11.9
1951	14	11.9
1952	20	11.9
1953	5	11.9
1954	9	11.9
1955	9	11.9
1956	8	11.9
1957	20	11.9
1958	16	11.9
1959	8	11.9
1960	10	11.9
1961	4	11.9
1962	8	11.9
1963	13	11.9
1965	20	11.9
1966	8	11.9
1967	18	11.9
1968	6	11.9
1969	20	11.9
1970	12	12.9
1971	8	12.9
1972	7	12.9
1973	15	12.9
1974	12	12.9
1975	7	12.9
1976	11	12.9
1977	13	12.9
1978	28	12.9
1979	16	12.9
1981	11	14.4
1982	19	14.4
1983	31	14.4
1984	9	14.4
1985	8	14.4
1986	15	14.4
1987	16	14.4
1989	6	14.4
1990	8	15
1991	16	15
1992	20	15
1993	22	15
1994	11	15
1995	21	15
1996	17	15
1997	14	15
1999	6	15
2004	15	13.2
2005	19	13.2
2006	11	13.2
2007	8	13.2
2008	13	13.2
2009	13	13.2
2010	19	12.4
2013	5	12.4
2014	11	12.4
2015	5	12.4
2016	12	12.4
2017	12	12.4
2018	11	12.4
2019	24	12.4
2020	8	11.2
2021	8	11.2
2022	5	11.2
2023	19	11.2
2024	11	11.2
2025	16	11.2

For each year, a bar from the first to the last day at Covina City Yard Fc387B meeting 10 mm (0.39 in).

First to last qualifying date each year at Covina City Yard Fc387B
Year	First date	Last date
1931	1931-01-02	1931-12-28
1932	1932-02-01	1932-12-12
1933	1933-01-16	1933-12-31
1934	1934-01-01	1934-12-28
1935	1935-01-05	1935-12-29
1938	1938-01-15	1938-12-20
1942	1942-02-22	1942-12-25
1945	1945-02-01	1945-12-23
1946	1946-02-03	1946-12-27
1947	1947-01-28	1947-12-05
1948	1948-02-05	1948-12-27
1949	1949-01-13	1949-12-08
1950	1950-01-08	1950-11-19
1951	1951-01-10	1951-12-30
1952	1952-01-07	1952-12-30
1953	1953-01-07	1953-11-14
1954	1954-01-12	1954-12-10
1955	1955-01-10	1955-11-21
1956	1956-01-25	1956-12-07
1957	1957-01-05	1957-12-17
1958	1958-01-26	1958-04-07
1959	1959-01-06	1959-12-25
1960	1960-01-10	1960-11-26
1961	1961-01-26	1961-12-02
1962	1962-01-20	1962-03-06
1963	1963-01-31	1963-11-15
1965	1965-01-24	1965-12-29
1966	1966-01-30	1966-12-06
1967	1967-01-22	1967-12-19
1968	1968-01-27	1968-12-25
1969	1969-01-14	1969-11-07
1970	1970-01-16	1970-12-21
1971	1971-02-17	1971-12-27
1972	1972-08-12	1972-12-07
1973	1973-01-16	1973-11-23
1974	1974-01-04	1974-12-29
1975	1975-02-03	1975-04-09
1976	1976-02-04	1976-12-30
1977	1977-01-03	1977-12-28
1978	1978-01-04	1978-12-19
1979	1979-01-05	1979-10-20
1981	1981-01-28	1981-12-30
1982	1982-01-01	1982-12-23
1983	1983-01-19	1983-12-25
1984	1984-11-08	1984-12-27
1985	1985-01-08	1985-11-29
1986	1986-01-30	1986-12-06
1987	1987-01-04	1987-12-29
1989	1989-01-05	1989-11-26
1990	1990-01-02	1990-05-28
1991	1991-01-03	1991-12-30
1992	1992-01-05	1992-12-29
1993	1993-01-02	1993-12-14
1994	1994-01-25	1994-12-24
1995	1995-01-03	1995-12-13
1996	1996-01-16	1996-12-27
1997	1997-01-03	1997-12-19
1999	1999-02-05	1999-12-31
2004	2004-02-03	2004-12-31
2005	2005-01-03	2005-12-31
2006	2006-01-02	2006-12-10
2007	2007-02-11	2007-12-19
2008	2008-01-05	2008-12-17
2009	2009-02-06	2009-12-13
2010	2010-02-06	2010-12-30
2013	2013-01-24	2013-10-10
2014	2014-01-30	2014-12-17
2015	2015-05-08	2015-09-16
2016	2016-01-06	2016-12-23
2017	2017-01-05	2017-05-08
2018	2018-01-09	2018-12-07
2019	2019-01-06	2019-12-26
2020	2020-03-13	2020-12-28
2021	2021-01-29	2021-12-31
2022	2022-03-29	2022-12-31
2023	2023-01-05	2023-12-30
2024	2024-01-19	2024-04-14
2025	2025-02-07	2025-12-31

Every Fixed Threshold

Fixed thresholds at Covina City Yard Fc387B
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	78	31	1983	16
25 mm (0.98 in): Days with 25 mm or more rain	74	14	1978	7
50 mm (1.97 in): Days with 50 mm or more rain	54	5	2010	2
100 mm (3.94 in): Days with 100 mm or more rain	7	1	1934	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1934	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1931.

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Data for Covina City Yard Fc387B 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).

Covina City Yard Fc387B Threshold Days by Year (USC00042090)

Key Facts for Covina City Yard Fc387B Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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