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Built 2026-10-19 (19 October 2026)

Downey Fire Dept. Fc107C Threshold Days by Year (USC00042494)

4 fixed thresholds counted per year at Downey Fire Dept. Fc107C (USC00042494): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Downey Fire Dept. Fc107C Thresholds

  • Downey Fire Dept. Fc107C: days with 10 mm (0.39 in) or more of precipitation in 51 years, most in 1978 with 27.
  • Downey Fire Dept. Fc107C: days with 25 mm (0.98 in) or more of precipitation in 46 years, most in 1983 with 12.
  • Downey Fire Dept. Fc107C: days with 50 mm (1.97 in) or more of precipitation in 31 years, most in 1978 with 4.
  • Downey Fire Dept. Fc107C: days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1956 with 1.
  • 4 fixed thresholds have at least one qualifying day at Downey Fire Dept. Fc107C.
51 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Downey Fire Dept. Fc107C Days per year at Downey Fire Dept. Fc107C with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 27 in 1978. 01020301949: 111950: 91951: 141952: 181953: 61954: 111955: 51956: 71957: 171958: 141959: 71960: 71961: 41962: 101963: 111964: 51965: 201966: 71967: 161968: 31969: 151970: 111971: 51972: 51973: 151974: 141975: 71976: 131977: 111978: 271979: 141981: 101982: 151983: 251984: 91985: 81986: 141987: 71989: 61990: 61991: 111992: 191993: 191994: 51995: 201996: 121997: 101998: 241999: 62004: 92010: 15194919551961196719731979198619931999
Days per year at Downey Fire Dept. Fc107C with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 27 in 1978.
Days with 10 mm (0.39 in) or more of precipitation per year at Downey Fire Dept. Fc107C
YearDaysDecade average
19491111
1950910.8
19511410.8
19521810.8
1953610.8
19541110.8
1955510.8
1956710.8
19571710.8
19581410.8
1959710.8
196079.8
196149.8
1962109.8
1963119.8
196459.8
1965209.8
196679.8
1967169.8
196839.8
1969159.8
19701112.2
1971512.2
1972512.2
19731512.2
19741412.2
1975712.2
19761312.2
19771112.2
19782712.2
19791412.2
19811011.8
19821511.8
19832511.8
1984911.8
1985811.8
19861411.8
1987711.8
1989611.8
1990613.2
19911113.2
19921913.2
19931913.2
1994513.2
19952013.2
19961213.2
19971013.2
19982413.2
1999613.2
200499
20101515
First to last qualifying date each year at Downey Fire Dept. Fc107C For each year, a bar from the first to the last day at Downey Fire Dept. Fc107C meeting 10 mm (0.39 in). 1949: 11 January 1949 to 19 December 19491950: 8 January 1950 to 13 November 19501951: 10 January 1951 to 30 December 19511952: 13 January 1952 to 30 December 19521953: 6 January 1953 to 14 November 19531954: 12 January 1954 to 11 November 19541955: 16 January 1955 to 14 November 19551956: 25 January 1956 to 9 May 19561957: 10 January 1957 to 17 December 19571958: 26 January 1958 to 15 August 19581959: 6 January 1959 to 24 December 19591960: 10 January 1960 to 26 November 19601961: 26 January 1961 to 2 December 19611962: 20 January 1962 to 6 March 19621963: 9 February 1963 to 20 November 19631964: 21 January 1964 to 27 December 19641965: 11 March 1965 to 29 December 19651966: 30 January 1966 to 6 December 19661967: 22 January 1967 to 19 December 19671968: 8 March 1968 to 25 December 19681969: 14 January 1969 to 7 November 19691970: 10 January 1970 to 21 December 19701971: 17 February 1971 to 27 December 19711972: 11 November 1972 to 7 December 19721973: 9 January 1973 to 23 November 19731974: 4 January 1974 to 29 December 19741975: 3 February 1975 to 9 April 19751976: 5 February 1976 to 30 December 19761977: 3 January 1977 to 29 December 19771978: 4 January 1978 to 19 December 19781979: 5 January 1979 to 20 October 19791981: 28 January 1981 to 30 December 19811982: 1 January 1982 to 22 December 19821983: 23 January 1983 to 25 December 19831984: 6 April 1984 to 27 December 19841985: 8 January 1985 to 29 November 19851986: 30 January 1986 to 18 November 19861987: 4 January 1987 to 16 December 19871989: 3 February 1989 to 22 October 19891990: 2 January 1990 to 28 May 19901991: 3 January 1991 to 29 December 19911992: 5 January 1992 to 29 December 19921993: 2 January 1993 to 30 November 19931994: 4 February 1994 to 25 December 19941995: 3 January 1995 to 16 June 19951996: 20 February 1996 to 31 December 19961997: 13 January 1997 to 18 December 19971998: 9 January 1998 to 1 December 19981999: 25 January 1999 to 5 April 19992004: 4 February 2004 to 5 December 20042010: 18 January 2010 to 29 December 201019491956196319701977198519932004JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Downey Fire Dept. Fc107C meeting 10 mm (0.39 in).
First to last qualifying date each year at Downey Fire Dept. Fc107C
YearFirst dateLast date
19491949-01-111949-12-19
19501950-01-081950-11-13
19511951-01-101951-12-30
19521952-01-131952-12-30
19531953-01-061953-11-14
19541954-01-121954-11-11
19551955-01-161955-11-14
19561956-01-251956-05-09
19571957-01-101957-12-17
19581958-01-261958-08-15
19591959-01-061959-12-24
19601960-01-101960-11-26
19611961-01-261961-12-02
19621962-01-201962-03-06
19631963-02-091963-11-20
19641964-01-211964-12-27
19651965-03-111965-12-29
19661966-01-301966-12-06
19671967-01-221967-12-19
19681968-03-081968-12-25
19691969-01-141969-11-07
19701970-01-101970-12-21
19711971-02-171971-12-27
19721972-11-111972-12-07
19731973-01-091973-11-23
19741974-01-041974-12-29
19751975-02-031975-04-09
19761976-02-051976-12-30
19771977-01-031977-12-29
19781978-01-041978-12-19
19791979-01-051979-10-20
19811981-01-281981-12-30
19821982-01-011982-12-22
19831983-01-231983-12-25
19841984-04-061984-12-27
19851985-01-081985-11-29
19861986-01-301986-11-18
19871987-01-041987-12-16
19891989-02-031989-10-22
19901990-01-021990-05-28
19911991-01-031991-12-29
19921992-01-051992-12-29
19931993-01-021993-11-30
19941994-02-041994-12-25
19951995-01-031995-06-16
19961996-02-201996-12-31
19971997-01-131997-12-18
19981998-01-091998-12-01
19991999-01-251999-04-05
20042004-02-042004-12-05
20102010-01-182010-12-29

Every Fixed Threshold

Fixed thresholds at Downey Fire Dept. Fc107C
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain5127197815
25 mm (0.98 in): Days with 25 mm or more rain461219836
50 mm (1.97 in): Days with 50 mm or more rain31419782
100 mm (3.94 in): Days with 100 mm or more rain4119561

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

Download the Data

  • Data for Downey Fire Dept. Fc107C 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 . Last revised (2025-12-31).