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Data as of 2025-12-31
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Built 2026-10-16 (16 October 2026)

Chatsworth Fc 24 F Weather Records (USC00041680)

Record envelope, standing records and threshold days for Chatsworth Fc 24 F (USC00041680), California, United States, with 62 years of record.

Key Facts for Chatsworth Fc 24 F

  • Chatsworth Fc 24 F (USC00041680) is a weather station in California, United States at 34.25 latitude and -118.60 longitude, 290 m (950 ft) above sea level.
  • The station reports from 1927 to 1988, 62 years of record.
  • 0 records set at Chatsworth Fc 24 F still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Chatsworth Fc 24 F set a daily record precipitation of 31.0 mm (1.2 in) on 17 December 1987.

About the Station

  • Location: California, United States, 34.25 latitude, -118.60 longitude.
  • Elevation: 290 m (950 ft).
  • Period of record: 1927 to 1988, 62 years.
  • Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Chatsworth Fc 24 F, with 2026 drawn through them The band shows the record high and record low for each calendar day at Chatsworth Fc 24 F. 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 Chatsworth Fc 24 F. 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 Chatsworth Fc 24 F, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
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Which Years Hold Standing Records

0 standing records
Standing records at Chatsworth Fc 24 F by the year they were set 0 records at Chatsworth Fc 24 F still stand. 00000000000
0 records at Chatsworth Fc 24 F still stand.
Standing records at Chatsworth Fc 24 F by the year they were set
Year setStanding records

Wettest Day of Each Month

Nov: 143.5 mm (5.6 in)
Record daily precipitation for each month at Chatsworth Fc 24 F The wettest day on record for each calendar month at Chatsworth Fc 24 F. The most was 143.5 mm (5.6 in) on 29 November 1970. 050100150 Jan: 114.3 mm (4.5 in), 15 January 1952 Jan Feb: 86.6 mm (3.4 in), 9 February 1963 Feb Mar: 130.0 mm (5.1 in), 1 March 1983 Mar Apr: 66.0 mm (2.6 in), 1 April 1964 Apr May: 37.3 mm (1.5 in), 8 May 1977 May Jun: 6.9 mm (0.27 in), 10 June 1976 Jun Jul: 6.4 mm (0.25 in), 23 July 1974 Jul Aug: 88.4 mm (3.5 in), 17 August 1977 Aug Sep: 25.1 mm (1.0 in), 24 September 1986 Sep Oct: 47.0 mm (1.9 in), 23 October 1987 Oct Nov: 143.5 mm (5.6 in), 29 November 1970 Nov Dec: 90.7 mm (3.6 in), 29 December 1965 Dec
The wettest day on record for each calendar month at Chatsworth Fc 24 F. The most was 143.5 mm (5.6 in) on 29 November 1970.
Record daily precipitation for each month at Chatsworth Fc 24 F
MonthRecord daily precipitation (mm)Date
Jan114.3 mm (4.5 in)15 January 1952
Feb86.6 mm (3.4 in)9 February 1963
Mar130.0 mm (5.1 in)1 March 1983
Apr66.0 mm (2.6 in)1 April 1964
May37.3 mm (1.5 in)8 May 1977
Jun6.9 mm (0.27 in)10 June 1976
Jul6.4 mm (0.25 in)23 July 1974
Aug88.4 mm (3.5 in)17 August 1977
Sep25.1 mm (1.0 in)24 September 1986
Oct47.0 mm (1.9 in)23 October 1987
Nov143.5 mm (5.6 in)29 November 1970
Dec90.7 mm (3.6 in)29 December 1965

Latest Records

20
Latest records at Chatsworth Fc 24 F
DateStationRecordValueBeat old record byOld record stoodSignificance
17 December 1987Chatsworth Fc 24 F, USdaily rain31.0 mm (1.2 in)25.9 mm (1.0 in)16 years27 of 100 (Routine)
2 November 1987Chatsworth Fc 24 F, USdaily rain (Tie)5.3 mm (0.21 in)tie29 years3 of 100 (Routine)
1 November 1987Chatsworth Fc 24 F, USdaily rain78.7 mm (3.1 in)60.4 mm (2.4 in)60 years49 of 100 (Notable)
27 October 1987Chatsworth Fc 24 F, USdaily rain2.5 mm (0.10 in)2.5 mm (0.10 in)60 years20 of 100 (Routine)
23 October 1987Chatsworth Fc 24 F, USmonthly rain47.0 mm (1.9 in)18.6 mm (0.7 in)4 years44 of 100 (Notable)
12 October 1987Chatsworth Fc 24 F, USdaily rain3.8 mm (0.15 in)3.8 mm (0.15 in)60 years20 of 100 (Routine)
14 August 1987Chatsworth Fc 24 F, USdaily rain0.3 mm (0.01 in)0.3 mm (0.01 in)37 years17 of 100 (Routine)
17 July 1987Chatsworth Fc 24 F, USdaily rain0.5 mm (0.02 in)0.5 mm (0.02 in)37 years17 of 100 (Routine)
4 May 1987Chatsworth Fc 24 F, USdaily rain4.3 mm (0.17 in)2.5 mm (0.10 in)17 years13 of 100 (Routine)
2 May 1987Chatsworth Fc 24 F, USdaily rain2.3 mm (0.09 in)2.3 mm (0.09 in)37 years19 of 100 (Routine)
18 November 1986Chatsworth Fc 24 F, USdaily rain35.6 mm (1.4 in)8.4 mm (0.33 in)12 years12 of 100 (Routine)
27 September 1986Chatsworth Fc 24 F, USdaily rain0.3 mm (0.01 in)0.3 mm (0.01 in)56 years20 of 100 (Routine)
25 September 1986Chatsworth Fc 24 F, USdaily rain6.6 mm (0.26 in)6.6 mm (0.26 in)56 years20 of 100 (Routine)
24 September 1986Chatsworth Fc 24 F, USmonthly rain25.1 mm (1.0 in)1.2 mm (0.05 in)10 years20 of 100 (Routine)
5 July 1986Chatsworth Fc 24 F, USdaily rain2.3 mm (0.09 in)2.3 mm (0.09 in)36 years19 of 100 (Routine)
1 July 1986Chatsworth Fc 24 F, USdaily rain2.3 mm (0.09 in)2.3 mm (0.09 in)36 years19 of 100 (Routine)
6 April 1986Chatsworth Fc 24 F, USdaily rain11.9 mm (0.5 in)8.1 mm (0.32 in)11 years15 of 100 (Routine)
10 March 1986Chatsworth Fc 24 F, USdaily rain30.0 mm (1.2 in)11.2 mm (0.4 in)36 years22 of 100 (Routine)
17 April 1985Chatsworth Fc 24 F, USdaily rain3.0 mm (0.12 in)1.0 mm (0.04 in)14 years9 of 100 (Routine)
16 December 1984Chatsworth Fc 24 F, USdaily rain18.0 mm (0.7 in)12.4 mm (0.5 in)14 years16 of 100 (Routine)

Extremes by Year

1927 to 1988
Yearly extremes at Chatsworth Fc 24 F: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)143.5 mm (5.6 in)197051.8 mm (2.0 in)43
Wettest five days (Rx5day)292.9 mm (11.5 in)198380.0 mm (3.1 in)43
Longest dry spell (CDD)264 days1970120 days43

Wettest day (Rx1day)

Wettest day (Rx1day) at Chatsworth Fc 24 F by year The wettest day of the year at Chatsworth Fc 24 F, 1927 to 1988. The record is 143.5 mm (5.6 in) in 1970, marked on the chart; the median year is 51.8 mm (2.0 in). 050100150194019601980Record: 143.5 mm (5.6 in) in 1970
The wettest day of the year at Chatsworth Fc 24 F, 1927 to 1988. The record is 143.5 mm (5.6 in) in 1970, marked on the chart; the median year is 51.8 mm (2.0 in).
Wettest day (Rx1day) at Chatsworth Fc 24 F by year
YearWettest day (Rx1day)
192726.2 mm (1.0 in)
192835.8 mm (1.4 in)
19299.4 mm (0.37 in)
194931.8 mm (1.3 in)
195033.8 mm (1.3 in)
195140.4 mm (1.6 in)
1952114.3 mm (4.5 in)
195351.6 mm (2.0 in)
195479.8 mm (3.1 in)
195550.8 mm (2.0 in)
195649.8 mm (2.0 in)
195745.2 mm (1.8 in)
195867.1 mm (2.6 in)
195951.8 mm (2.0 in)
196051.3 mm (2.0 in)
196141.4 mm (1.6 in)
196253.8 mm (2.1 in)
196386.6 mm (3.4 in)
196466.0 mm (2.6 in)
1965141.0 mm (5.6 in)
196685.1 mm (3.4 in)
196772.6 mm (2.9 in)
196894.5 mm (3.7 in)
196963.5 mm (2.5 in)
1970143.5 mm (5.6 in)
197148.5 mm (1.9 in)
197237.8 mm (1.5 in)
197368.1 mm (2.7 in)
197479.0 mm (3.1 in)
197546.2 mm (1.8 in)
197633.8 mm (1.3 in)
197788.4 mm (3.5 in)
197887.6 mm (3.4 in)
197954.9 mm (2.2 in)
198085.1 mm (3.4 in)
198149.5 mm (1.9 in)
198259.9 mm (2.4 in)
1983130.0 mm (5.1 in)
198435.1 mm (1.4 in)
198533.5 mm (1.3 in)
198635.6 mm (1.4 in)
198778.7 mm (3.1 in)
19880.0 mm (0.00 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Chatsworth Fc 24 F by year The wettest five days of the year at Chatsworth Fc 24 F, 1927 to 1988. The record is 292.9 mm (11.5 in) in 1983, marked on the chart; the median year is 80.0 mm (3.1 in). 0100200300194019601980Record: 292.9 mm (11.5 in) in 1983
The wettest five days of the year at Chatsworth Fc 24 F, 1927 to 1988. The record is 292.9 mm (11.5 in) in 1983, marked on the chart; the median year is 80.0 mm (3.1 in).
Wettest five days (Rx5day) at Chatsworth Fc 24 F by year
YearWettest five days (Rx5day)
192750.9 mm (2.0 in)
192853.5 mm (2.1 in)
19299.4 mm (0.37 in)
194932.3 mm (1.3 in)
195060.5 mm (2.4 in)
195176.0 mm (3.0 in)
1952218.9 mm (8.6 in)
195351.6 mm (2.0 in)
195479.8 mm (3.1 in)
195561.0 mm (2.4 in)
195658.9 mm (2.3 in)
195745.2 mm (1.8 in)
195880.2 mm (3.2 in)
195951.8 mm (2.0 in)
196075.9 mm (3.0 in)
196141.4 mm (1.6 in)
1962141.6 mm (5.6 in)
196399.6 mm (3.9 in)
196468.1 mm (2.7 in)
1965226.6 mm (8.9 in)
1966116.6 mm (4.6 in)
1967172.3 mm (6.8 in)
196894.5 mm (3.7 in)
1969142.2 mm (5.6 in)
1970165.6 mm (6.5 in)
1971138.8 mm (5.5 in)
197267.5 mm (2.7 in)
1973101.9 mm (4.0 in)
1974193.3 mm (7.6 in)
197582.5 mm (3.2 in)
197694.9 mm (3.7 in)
1977107.2 mm (4.2 in)
1978204.6 mm (8.1 in)
197980.0 mm (3.1 in)
1980233.2 mm (9.2 in)
198175.4 mm (3.0 in)
198297.0 mm (3.8 in)
1983292.9 mm (11.5 in)
198479.0 mm (3.1 in)
198534.3 mm (1.4 in)
198667.9 mm (2.7 in)
198790.3 mm (3.6 in)
19880.0 mm (0.00 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Chatsworth Fc 24 F by year The longest dry spell of the year at Chatsworth Fc 24 F, 1927 to 1988. The record is 264 days in 1970, marked on the chart; the median year is 120 days. 0100200300194019601980Record: 264 days in 1970
The longest dry spell of the year at Chatsworth Fc 24 F, 1927 to 1988. The record is 264 days in 1970, marked on the chart; the median year is 120 days.
Longest dry spell (CDD) at Chatsworth Fc 24 F by year
YearLongest dry spell (CDD)
192727 days
192824 days
1929103 days
1949172 days
1950161 days
1951120 days
1952183 days
1953147 days
1954224 days
1955190 days
1956170 days
1957144 days
1958131 days
1959157 days
1960191 days
1961110 days
1962204 days
196383 days
1964140 days
1965120 days
1966141 days
1967152 days
196886 days
1969186 days
1970264 days
1971100 days
1972104 days
1973200 days
1974111 days
1975118 days
197665 days
197778 days
1978132 days
1979155 days
198071 days
1981163 days
1982120 days
1983105 days
1984112 days
198583 days
198684 days
198788 days
198831 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

34 years, 1949 to 1987

A day with at least 61.1 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 180.3 mm (7.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Chatsworth Fc 24 F: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years61.1 mm (2.4 in)
5 years87.7 mm (3.5 in)
10 years107.2 mm (4.2 in)
25 years134.4 mm (5.3 in)
50 years156.5 mm (6.2 in)Longer than the 34 years of record
100 years180.3 mm (7.1 in)Longer than the 34 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, 34 years of values from 1949 to 1987.

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: 143.5 mm (5.6 in) in 1970; 141.0 mm (5.6 in) in 1965; 130.0 mm (5.1 in) in 1983.

Download the Data

  • Data for Chatsworth Fc 24 F standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Chatsworth Fc 24 F 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).