Built 2026-10-19 (19 October 2026)

Santa Margarita 2 SW Threshold Days by Year (USC00047930)

4 fixed thresholds counted per year at Santa Margarita 2 SW (USC00047930): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Santa Margarita 2 SW Thresholds

  • Santa Margarita 2 SW: days with 10 mm (0.39 in) or more of precipitation in 30 years, most in 1952 with 31.
  • Santa Margarita 2 SW: days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1969 with 16.
  • Santa Margarita 2 SW: days with 50 mm (1.97 in) or more of precipitation in 28 years, most in 1969 with 9.
  • Santa Margarita 2 SW: days with 100 mm (3.94 in) or more of precipitation in 13 years, most in 1962 with 2.
  • 4 fixed thresholds have at least one qualifying day at Santa Margarita 2 SW.
30 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Santa Margarita 2 SW Days per year at Santa Margarita 2 SW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 1952. 0102030401945: 171946: 211947: 121948: 181949: 231950: 261951: 221952: 311953: 111954: 231955: 251956: 121957: 271958: 291959: 141960: 211961: 101962: 181963: 261964: 241965: 251966: 141967: 281968: 211969: 311970: 291971: 151972: 151973: 311974: 231945194819511954195719601963196619691972
Days per year at Santa Margarita 2 SW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 1952.
Days with 10 mm (0.39 in) or more of precipitation per year at Santa Margarita 2 SW
YearDaysDecade average
19451718.2
19462118.2
19471218.2
19481818.2
19492318.2
19502622
19512222
19523122
19531122
19542322
19552522
19561222
19572722
19582922
19591422
19602121.8
19611021.8
19621821.8
19632621.8
19642421.8
19652521.8
19661421.8
19672821.8
19682121.8
19693121.8
19702922.6
19711522.6
19721522.6
19733122.6
19742322.6
First to last qualifying date each year at Santa Margarita 2 SW For each year, a bar from the first to the last day at Santa Margarita 2 SW meeting 10 mm (0.39 in). 1945: 1 February 1945 to 25 December 19451946: 3 January 1946 to 27 December 19461947: 28 January 1947 to 21 December 19471948: 5 February 1948 to 27 December 19481949: 20 January 1949 to 19 December 19491950: 8 January 1950 to 26 December 19501951: 10 January 1951 to 30 December 19511952: 6 January 1952 to 30 December 19521953: 6 January 1953 to 4 December 19531954: 11 January 1954 to 9 December 19541955: 1 January 1955 to 31 December 19551956: 25 January 1956 to 5 December 19561957: 5 January 1957 to 18 December 19571958: 10 January 1958 to 27 December 19581959: 5 January 1959 to 24 December 19591960: 9 January 1960 to 1 December 19601961: 26 January 1961 to 2 December 19611962: 20 January 1962 to 16 December 19621963: 30 January 1963 to 20 November 19631964: 20 January 1964 to 31 December 19641965: 4 January 1965 to 30 December 19651966: 30 January 1966 to 6 December 19661967: 21 January 1967 to 19 December 19671968: 10 January 1968 to 28 December 19681969: 13 January 1969 to 25 December 19691970: 9 January 1970 to 27 December 19701971: 11 January 1971 to 27 December 19711972: 27 January 1972 to 17 December 19721973: 8 January 1973 to 27 December 19731974: 1 January 1974 to 28 December 197419451949195319571961196519691973JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Santa Margarita 2 SW meeting 10 mm (0.39 in).
First to last qualifying date each year at Santa Margarita 2 SW
YearFirst dateLast date
19451945-02-011945-12-25
19461946-01-031946-12-27
19471947-01-281947-12-21
19481948-02-051948-12-27
19491949-01-201949-12-19
19501950-01-081950-12-26
19511951-01-101951-12-30
19521952-01-061952-12-30
19531953-01-061953-12-04
19541954-01-111954-12-09
19551955-01-011955-12-31
19561956-01-251956-12-05
19571957-01-051957-12-18
19581958-01-101958-12-27
19591959-01-051959-12-24
19601960-01-091960-12-01
19611961-01-261961-12-02
19621962-01-201962-12-16
19631963-01-301963-11-20
19641964-01-201964-12-31
19651965-01-041965-12-30
19661966-01-301966-12-06
19671967-01-211967-12-19
19681968-01-101968-12-28
19691969-01-131969-12-25
19701970-01-091970-12-27
19711971-01-111971-12-27
19721972-01-271972-12-17
19731973-01-081973-12-27
19741974-01-011974-12-28

Every Fixed Threshold

Fixed thresholds at Santa Margarita 2 SW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3031195223
25 mm (0.98 in): Days with 25 mm or more rain3016196912
50 mm (1.97 in): Days with 50 mm or more rain28919693
100 mm (3.94 in): Days with 100 mm or more rain13219621

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1945.

Download the Data

  • Data for Santa Margarita 2 SW 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).