Daily records
Page built 2026-10-16
Data as of 2025-12-31
Search
Built 2026-10-16 (16 October 2026)

Santa Margarita 2 SW Weather Records (USC00047930)

Record envelope, standing records and threshold days for Santa Margarita 2 SW (USC00047930), California, United States, with 33 years of record.

Key Facts for Santa Margarita 2 SW

  • Santa Margarita 2 SW (USC00047930) is a weather station in California, United States at 35.37 latitude and -120.63 longitude, 366 m (1,201 ft) above sea level.
  • The station reports from 1943 to 1975, 33 years of record.
  • 0 records set at Santa Margarita 2 SW still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Santa Margarita 2 SW set a daily record precipitation of 52.6 mm (2.1 in) on 28 December 1974.

About the Station

  • Location: California, United States, 35.37 latitude, -120.63 longitude.
  • Elevation: 366 m (1,201 ft).
  • Period of record: 1943 to 1975, 33 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Santa Margarita 2 SW, with 2026 drawn through them The band shows the record high and record low for each calendar day at Santa Margarita 2 SW. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Santa Margarita 2 SW. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Santa Margarita 2 SW, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
Febn/an/an/an/a
Marn/an/an/an/a
Aprn/an/an/an/a
Mayn/an/an/an/a
Junn/an/an/an/a
Juln/an/an/an/a
Augn/an/an/an/a
Sepn/an/an/an/a
Octn/an/an/an/a
Novn/an/an/an/a
Decn/an/an/an/a

Which Years Hold Standing Records

0 standing records
Standing records at Santa Margarita 2 SW by the year they were set 0 records at Santa Margarita 2 SW still stand. 00000000000
0 records at Santa Margarita 2 SW still stand.
Standing records at Santa Margarita 2 SW by the year they were set
Year setStanding records

Wettest Day of Each Month

Dec: 183.4 mm (7.2 in)
Record daily precipitation for each month at Santa Margarita 2 SW The wettest day on record for each calendar month at Santa Margarita 2 SW. The most was 183.4 mm (7.2 in) on 6 December 1966. 050100150200 Jan: 160.0 mm (6.3 in), 18 January 1973 Jan Feb: 117.6 mm (4.6 in), 9 February 1962 Feb Mar: 98.3 mm (3.9 in), 24 March 1950 Mar Apr: 89.9 mm (3.5 in), 27 April 1953 Apr May: 40.6 mm (1.6 in), 19 May 1957 May Jun: 9.4 mm (0.37 in), 9 June 1964 Jun Jul: 19.1 mm (0.8 in), 10 July 1950 Jul Aug: 2.5 mm (0.10 in), 31 August 1964 Aug Sep: 43.9 mm (1.7 in), 19 September 1959 Sep Oct: 42.4 mm (1.7 in), 27 October 1950 Oct Nov: 121.4 mm (4.8 in), 20 November 1946 Nov Dec: 183.4 mm (7.2 in), 6 December 1966 Dec
The wettest day on record for each calendar month at Santa Margarita 2 SW. The most was 183.4 mm (7.2 in) on 6 December 1966.
Record daily precipitation for each month at Santa Margarita 2 SW
MonthRecord daily precipitation (mm)Date
Jan160.0 mm (6.3 in)18 January 1973
Feb117.6 mm (4.6 in)9 February 1962
Mar98.3 mm (3.9 in)24 March 1950
Apr89.9 mm (3.5 in)27 April 1953
May40.6 mm (1.6 in)19 May 1957
Jun9.4 mm (0.37 in)9 June 1964
Jul19.1 mm (0.8 in)10 July 1950
Aug2.5 mm (0.10 in)31 August 1964
Sep43.9 mm (1.7 in)19 September 1959
Oct42.4 mm (1.7 in)27 October 1950
Nov121.4 mm (4.8 in)20 November 1946
Dec183.4 mm (7.2 in)6 December 1966

Latest Records

11
Latest records at Santa Margarita 2 SW
DateStationRecordValueBeat old record byOld record stoodSignificance
28 December 1974Santa Margarita 2 SW, USdaily rain52.6 mm (2.1 in)24.2 mm (1.0 in)23 years19 of 100 (Routine)
21 November 1974Santa Margarita 2 SW, USdaily rain22.9 mm (0.9 in)9.9 mm (0.39 in)19 years12 of 100 (Routine)
28 October 1974Santa Margarita 2 SW, USdaily rain32.8 mm (1.3 in)21.6 mm (0.9 in)9 years23 of 100 (Routine)
1 October 1974Santa Margarita 2 SW, USdaily rain1.0 mm (0.04 in)1.0 mm (0.04 in)29 years11 of 100 (Routine)
2 April 1974Santa Margarita 2 SW, USdaily rain23.6 mm (0.9 in)7.6 mm (0.30 in)8 years9 of 100 (Routine)
3 March 1974Santa Margarita 2 SW, USdaily rain16.5 mm (0.6 in)8.4 mm (0.33 in)24 years15 of 100 (Routine)
2 March 1974Santa Margarita 2 SW, USdaily rain60.5 mm (2.4 in)43.0 mm (1.7 in)9 years31 of 100 (Routine)
1 March 1974Santa Margarita 2 SW, USdaily rain34.8 mm (1.4 in)1.0 mm (0.04 in)4 years4 of 100 (Routine)
17 January 1974Santa Margarita 2 SW, USdaily rain29.7 mm (1.2 in)8.1 mm (0.32 in)20 years11 of 100 (Routine)
7 January 1974Santa Margarita 2 SW, USdaily rain93.7 mm (3.7 in)65.0 mm (2.6 in)20 years32 of 100 (Routine)
4 January 1974Santa Margarita 2 SW, USdaily rain47.0 mm (1.9 in)21.6 mm (0.9 in)8 years12 of 100 (Routine)

Extremes by Year

1943 to 1975
Yearly extremes at Santa Margarita 2 SW: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)183.4 mm (7.2 in)196689.9 mm (3.5 in)33
Wettest five days (Rx5day)376.0 mm (14.8 in)1966166.3 mm (6.5 in)33
Longest dry spell (CDD)214 days1965124 days33

Wettest day (Rx1day)

Wettest day (Rx1day) at Santa Margarita 2 SW by year The wettest day of the year at Santa Margarita 2 SW, 1943 to 1975. The record is 183.4 mm (7.2 in) in 1966, marked on the chart; the median year is 89.9 mm (3.5 in). 050100150200195019601970Record: 183.4 mm (7.2 in) in 1966
The wettest day of the year at Santa Margarita 2 SW, 1943 to 1975. The record is 183.4 mm (7.2 in) in 1966, marked on the chart; the median year is 89.9 mm (3.5 in).
Wettest day (Rx1day) at Santa Margarita 2 SW by year
YearWettest day (Rx1day)
19430.0 mm (0.00 in)
194466.5 mm (2.6 in)
1945102.4 mm (4.0 in)
1946121.4 mm (4.8 in)
194743.7 mm (1.7 in)
194850.3 mm (2.0 in)
194970.1 mm (2.8 in)
1950106.2 mm (4.2 in)
195189.9 mm (3.5 in)
1952116.8 mm (4.6 in)
195389.9 mm (3.5 in)
195484.8 mm (3.3 in)
1955117.1 mm (4.6 in)
1956133.9 mm (5.3 in)
195773.9 mm (2.9 in)
1958107.7 mm (4.2 in)
195984.1 mm (3.3 in)
1960113.0 mm (4.4 in)
196173.4 mm (2.9 in)
1962138.2 mm (5.4 in)
196397.8 mm (3.9 in)
196462.2 mm (2.4 in)
196590.4 mm (3.6 in)
1966183.4 mm (7.2 in)
1967100.1 mm (3.9 in)
196845.7 mm (1.8 in)
1969139.4 mm (5.5 in)
197085.9 mm (3.4 in)
197166.5 mm (2.6 in)
197262.7 mm (2.5 in)
1973160.0 mm (6.3 in)
197493.7 mm (3.7 in)
197564.3 mm (2.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Santa Margarita 2 SW by year The wettest five days of the year at Santa Margarita 2 SW, 1943 to 1975. The record is 376.0 mm (14.8 in) in 1966, marked on the chart; the median year is 166.3 mm (6.5 in). 0100200300400195019601970Record: 376.0 mm (14.8 in) in 1966
The wettest five days of the year at Santa Margarita 2 SW, 1943 to 1975. The record is 376.0 mm (14.8 in) in 1966, marked on the chart; the median year is 166.3 mm (6.5 in).
Wettest five days (Rx5day) at Santa Margarita 2 SW by year
YearWettest five days (Rx5day)
19430.0 mm (0.00 in)
1944166.3 mm (6.5 in)
1945187.0 mm (7.4 in)
1946177.5 mm (7.0 in)
194754.9 mm (2.2 in)
194893.2 mm (3.7 in)
1949106.1 mm (4.2 in)
1950246.4 mm (9.7 in)
1951186.9 mm (7.4 in)
1952236.9 mm (9.3 in)
1953107.7 mm (4.2 in)
1954146.0 mm (5.7 in)
1955285.7 mm (11.2 in)
1956204.3 mm (8.0 in)
1957129.3 mm (5.1 in)
1958164.6 mm (6.5 in)
1959167.2 mm (6.6 in)
1960131.3 mm (5.2 in)
1961107.4 mm (4.2 in)
1962274.8 mm (10.8 in)
1963206.3 mm (8.1 in)
1964111.7 mm (4.4 in)
1965234.2 mm (9.2 in)
1966376.0 mm (14.8 in)
1967172.5 mm (6.8 in)
196868.1 mm (2.7 in)
1969281.1 mm (11.1 in)
1970153.7 mm (6.1 in)
1971135.3 mm (5.3 in)
1972116.3 mm (4.6 in)
1973244.6 mm (9.6 in)
1974188.5 mm (7.4 in)
1975149.2 mm (5.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Santa Margarita 2 SW by year The longest dry spell of the year at Santa Margarita 2 SW, 1943 to 1975. The record is 214 days in 1965, marked on the chart; the median year is 124 days. 050100150200250195019601970Record: 214 days in 1965
The longest dry spell of the year at Santa Margarita 2 SW, 1943 to 1975. The record is 214 days in 1965, marked on the chart; the median year is 124 days.
Longest dry spell (CDD) at Santa Margarita 2 SW by year
YearLongest dry spell (CDD)
1943123 days
194499 days
1945131 days
194668 days
194761 days
1948133 days
1949141 days
1950104 days
1951136 days
1952160 days
1953142 days
1954154 days
195599 days
1956145 days
1957122 days
1958107 days
1959136 days
1960122 days
196174 days
1962118 days
196385 days
196482 days
1965214 days
1966110 days
196775 days
1968150 days
1969135 days
1970132 days
1971124 days
1972143 days
1973128 days
1974159 days
197522 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

30 years, 1945 to 1974

A day with at least 93.1 mm (3.7 in) of rain is expected about once in 2 years. A day with at least 190.7 mm (7.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Santa Margarita 2 SW: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years93.1 mm (3.7 in)
5 years123.4 mm (4.9 in)
10 years141.7 mm (5.6 in)
25 years162.8 mm (6.4 in)
50 years177.3 mm (7.0 in)Longer than the 30 years of record
100 years190.7 mm (7.5 in)Longer than the 30 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 30 years of values from 1945 to 1974.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 183.4 mm (7.2 in) in 1966; 160.0 mm (6.3 in) in 1973; 139.4 mm (5.5 in) in 1969.

Download the Data

  • Data for Santa Margarita 2 SW standing records by year: CSV or JSON. Field meanings are on the data page.
  • 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).