Built 2026-10-16 (16 October 2026)

Delano Weather Records (USC00042346)

Record envelope, standing records and threshold days for Delano (USC00042346), California, United States, with 121 years of record.

Key Facts for Delano

  • Delano (USC00042346) is a weather station in California, United States at 35.77 latitude and -119.26 longitude, 92 m (302 ft) above sea level.
  • The station reports from 1906 to 2026, 121 years of record.
  • 1,464 records set at Delano still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Delano set a daily record precipitation of 14.2 mm (0.6 in) on 18 February 2026.

About the Station

  • Location: California, United States, 35.77 latitude, -119.26 longitude.
  • Elevation: 92 m (302 ft).
  • Period of record: 1906 to 2026, 121 years.
  • Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

42 days at or beyond a record
Daily record high and record low at Delano, with 2026 drawn through them The band shows the record high and record low for each calendar day at Delano. The lines show the 2026 daily maximum and minimum. 42 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -1001020304050 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Delano. The lines show the 2026 daily maximum and minimum. 42 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Delano, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan24.4 C (75.9 F)-3.3 C (26.1 F)20.0 C (68.0 F)0.0 C (32.0 F)
Feb30.0 C (86.0 F)-2.2 C (28.0 F)25.0 C (77.0 F)1.1 C (34.0 F)
Mar33.9 C (93.0 F)-2.2 C (28.0 F)33.9 C (93.0 F)4.4 C (39.9 F)
Apr35.6 C (96.1 F)1.7 C (35.1 F)30.6 C (87.1 F)6.7 C (44.1 F)
May40.6 C (105.1 F)5.0 C (41.0 F)37.8 C (100.0 F)10.0 C (50.0 F)
Jun42.8 C (109.0 F)8.3 C (46.9 F)40.0 C (104.0 F)13.9 C (57.0 F)
Jul43.3 C (109.9 F)13.3 C (55.9 F)40.0 C (104.0 F)14.4 C (57.9 F)
Aug42.2 C (108.0 F)14.4 C (57.9 F)n/an/a
Sep42.2 C (108.0 F)7.8 C (46.0 F)n/an/a
Oct37.8 C (100.0 F)4.4 C (39.9 F)n/an/a
Nov28.9 C (84.0 F)-1.1 C (30.0 F)n/an/a
Dec23.9 C (75.0 F)-6.1 C (21.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Delano by the year they were set 1,464 records at Delano still stand. 2012 holds the most, with 185. 0501001502002011: 1532012: 1852013: 1442014: 1272015: 1432016: 1192017: 1512018: 732019: 902020: 642021: 342022: 422023: 52025: 672026: 6720112013201520172019202120232026
1,464 records at Delano still stand. 2012 holds the most, with 185.
Standing records at Delano by the year they were set
Year setStanding records
2011153
2012185
2013144
2014127
2015143
2016119
2017151
201873
201990
202064
202134
202242
20235
202567
202667

All-Time Record Progression

3 new records
When Delano set new all-time records 3 all-time records were set at Delano between 10 February 1978 and 19 December 2010. Each dot is a new record. Record daily precipitationRecord daily snowfall10 February 1978: Record daily precipitation 51.8 mm (2.0 in)25 January 1999: Record daily snowfall 8.9 cm (3.5 in)19 December 2010: Record daily precipitation 64.8 mm (2.6 in)1980198519901995200020052010
3 all-time records were set at Delano between 10 February 1978 and 19 December 2010. Each dot is a new record.
When Delano set new all-time records
DateKindDetail
1978-02-10Record daily precipitationRecord daily precipitation 51.8 mm (2.0 in)
1999-01-25Record daily snowfallRecord daily snowfall 8.9 cm (3.5 in)
2010-12-19Record daily precipitationRecord daily precipitation 64.8 mm (2.6 in)

Wettest Day of Each Month

Dec: 64.8 mm (2.6 in)
Record daily precipitation for each month at Delano The wettest day on record for each calendar month at Delano. The most was 64.8 mm (2.6 in) on 19 December 2010. 020406080 Jan: 47.5 mm (1.9 in), 20 January 1969 Jan Feb: 51.8 mm (2.0 in), 10 February 1978 Feb Mar: 35.1 mm (1.4 in), 6 March 2019 Mar Apr: 35.8 mm (1.4 in), 6 April 1969 Apr May: 40.1 mm (1.6 in), 27 May 1971 May Jun: 26.2 mm (1.0 in), 5 June 1967 Jun Jul: 1.5 mm (0.06 in), 23 July 2013 Jul Aug: 10.2 mm (0.4 in), 19 August 1983 Aug Sep: 30.0 mm (1.2 in), 5 September 1978 Sep Oct: 24.1 mm (0.9 in), 27 October 2004 Oct Nov: 40.1 mm (1.6 in), 12 November 1944 Nov Dec: 64.8 mm (2.6 in), 19 December 2010 Dec
The wettest day on record for each calendar month at Delano. The most was 64.8 mm (2.6 in) on 19 December 2010.
Record daily precipitation for each month at Delano
MonthRecord daily precipitation (mm)Date
Jan47.5 mm (1.9 in)20 January 1969
Feb51.8 mm (2.0 in)10 February 1978
Mar35.1 mm (1.4 in)6 March 2019
Apr35.8 mm (1.4 in)6 April 1969
May40.1 mm (1.6 in)27 May 1971
Jun26.2 mm (1.0 in)5 June 1967
Jul1.5 mm (0.06 in)23 July 2013
Aug10.2 mm (0.4 in)19 August 1983
Sep30.0 mm (1.2 in)5 September 1978
Oct24.1 mm (0.9 in)27 October 2004
Nov40.1 mm (1.6 in)12 November 1944
Dec64.8 mm (2.6 in)19 December 2010

Period of Record Coverage

2011 to 2026
Days with data per year at Delano 15 years of record at Delano, 2011 to 2026. 8 years have data for under 90 percent of days and are left out of rankings: 2018, 2019, 2020, 2021, 2022, 2023, 2025, 2026. 2011: 349 of 365 days2012: 352 of 366 days2013: 351 of 365 days2014: 348 of 365 days2015: 344 of 365 days2016: 360 of 366 days2017: 343 of 365 days2018: 258 of 365 days2019: 215 of 365 days2020: 231 of 366 days2021: 104 of 365 days2022: 96 of 365 days2023: 8 of 365 days2025: 133 of 365 days2026: 202 of 365 days201520202025
15 years of record at Delano, 2011 to 2026. 8 years have data for under 90 percent of days and are left out of rankings: 2018, 2019, 2020, 2021, 2022, 2023, 2025, 2026.
Days with data per year at Delano
YearDays with dataShare of yearComplete
201134996%Yes
201235296%Yes
201335196%Yes
201434895%Yes
201534494%Yes
201636098%Yes
201734394%Yes
201825871%No
201921559%No
202023163%No
202110428%No
20229626%No
202382%No
202513336%No
202620255%No

Latest Records

20
Latest records at Delano
DateStationRecordValueBeat old record byOld record stoodSignificance
18 February 2026Delano, USdaily rain14.2 mm (0.6 in)5.8 mm (0.23 in)8 years20 of 100 (Routine)
4 January 2026Delano, USdaily rain27.4 mm (1.1 in)11.4 mm (0.4 in)111 years58 of 100 (Notable)
24 December 2025Delano, USdaily rain30.2 mm (1.2 in)9.9 mm (0.39 in)8 years28 of 100 (Routine)
21 November 2025Delano, USdaily rain10.2 mm (0.4 in)1.3 mm (0.05 in)12 years15 of 100 (Routine)
18 November 2025Delano, USdaily rain13.7 mm (0.5 in)1.0 mm (0.04 in)39 years20 of 100 (Routine)
16 November 2025Delano, USdaily rain28.4 mm (1.1 in)18.0 mm (0.7 in)67 years59 of 100 (Notable)
15 October 2025Delano, USdaily rain9.1 mm (0.36 in)2.0 mm (0.08 in)116 years20 of 100 (Routine)
19 September 2025Delano, USdaily rain5.3 mm (0.21 in)0.2 mm (0.01 in)62 years20 of 100 (Routine)
28 December 2022Delano, USdaily rain21.6 mm (0.9 in)12.5 mm (0.5 in)44 years20 of 100 (Routine)
22 April 2022Delano, USdaily rain22.9 mm (0.9 in)12.7 mm (0.5 in)12 years20 of 100 (Routine)
18 April 2020Delano, USdaily rain18.5 mm (0.7 in)7.3 mm (0.29 in)63 years20 of 100 (Routine)
8 April 2020Delano, USdaily rain18.0 mm (0.7 in)6.1 mm (0.24 in)9 years20 of 100 (Routine)
23 March 2020Delano, USdaily rain15.2 mm (0.6 in)8.8 mm (0.35 in)28 years20 of 100 (Routine)
26 December 2019Delano, USdaily rain27.2 mm (1.1 in)9.7 mm (0.38 in)48 years40 of 100 (Notable)
20 May 2019Delano, USdaily rain7.4 mm (0.29 in)4.4 mm (0.17 in)46 years20 of 100 (Routine)
19 May 2019Delano, USdaily rain18.3 mm (0.7 in)1.3 mm (0.05 in)24 years19 of 100 (Routine)
6 March 2019Delano, USmonthly rain35.1 mm (1.4 in)0.6 mm (0.02 in)27 years29 of 100 (Routine)
12 January 2019Delano, USdaily rain9.4 mm (0.37 in)2.0 mm (0.08 in)44 years20 of 100 (Routine)
22 March 2018Delano, USdaily rain22.1 mm (0.9 in)3.8 mm (0.15 in)23 years20 of 100 (Routine)
21 September 2017Delano, USdaily rain1.3 mm (0.05 in)0.8 mm (0.03 in)10 years14 of 100 (Routine)

Extremes by Year

1906 to 2026
Yearly extremes at Delano: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)43.3 C (109.9 F)202141.1 C (106.0 F)15
Coldest night (TNn)-6.1 C (21.0 F)2013-1.7 C (28.9 F)15
Wettest day (Rx1day)64.8 mm (2.6 in)201022.9 mm (0.9 in)95
Wettest five days (Rx5day)115.8 mm (4.6 in)201034.1 mm (1.3 in)94
Longest dry spell (CDD)237 days1959127 days95

Hottest day (TXx)

Hottest day (TXx) at Delano by year The hottest day of the year at Delano, 1906 to 2026. The record is 43.3 C (109.9 F) in 2021, marked on the chart; the median year is 41.1 C (106.0 F). 20304050192019401960198020002020Record: 43.3 C (109.9 F) in 2021
The hottest day of the year at Delano, 1906 to 2026. The record is 43.3 C (109.9 F) in 2021, marked on the chart; the median year is 41.1 C (106.0 F).
Hottest day (TXx) at Delano by year
YearHottest day (TXx)
1906n/a
1907n/a
1908n/a
1909n/a
1910n/a
1911n/a
1912n/a
1913n/a
1914n/a
1915n/a
1916n/a
1917n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
2003n/a
2004n/a
2005n/a
2006n/a
2007n/a
2008n/a
2009n/a
2010n/a
201140.6 C (105.1 F)
201242.8 C (109.0 F)
201341.1 C (106.0 F)
201442.2 C (108.0 F)
201541.1 C (106.0 F)
201641.1 C (106.0 F)
201742.2 C (108.0 F)
201840.0 C (104.0 F)
201940.6 C (105.1 F)
202041.7 C (107.1 F)
202143.3 C (109.9 F)
202242.2 C (108.0 F)
202322.2 C (72.0 F)
202540.6 C (105.1 F)
202640.0 C (104.0 F)

Coldest night (TNn)

Coldest night (TNn) at Delano by year The coldest night of the year at Delano, 1906 to 2026. The record is -6.1 C (21.0 F) in 2013, marked on the chart; the median year is -1.7 C (28.9 F). -8-6-4-202192019401960198020002020Record: -6.1 C (21.0 F) in 2013
The coldest night of the year at Delano, 1906 to 2026. The record is -6.1 C (21.0 F) in 2013, marked on the chart; the median year is -1.7 C (28.9 F).
Coldest night (TNn) at Delano by year
YearColdest night (TNn)
1906n/a
1907n/a
1908n/a
1909n/a
1910n/a
1911n/a
1912n/a
1913n/a
1914n/a
1915n/a
1916n/a
1917n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
2003n/a
2004n/a
2005n/a
2006n/a
2007n/a
2008n/a
2009n/a
2010n/a
2011-3.3 C (26.1 F)
2012-2.8 C (27.0 F)
2013-6.1 C (21.0 F)
20140.0 C (32.0 F)
2015-3.3 C (26.1 F)
2016-3.3 C (26.1 F)
2017-3.9 C (25.0 F)
2018-1.1 C (30.0 F)
2019-1.1 C (30.0 F)
2020-3.3 C (26.1 F)
2021-1.1 C (30.0 F)
2022-0.6 C (30.9 F)
2023-1.7 C (28.9 F)
20251.1 C (34.0 F)
20260.0 C (32.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Delano by year The wettest day of the year at Delano, 1906 to 2026. The record is 64.8 mm (2.6 in) in 2010, marked on the chart; the median year is 22.9 mm (0.9 in). 020406080192019401960198020002020Record: 64.8 mm (2.6 in) in 2010
The wettest day of the year at Delano, 1906 to 2026. The record is 64.8 mm (2.6 in) in 2010, marked on the chart; the median year is 22.9 mm (0.9 in).
Wettest day (Rx1day) at Delano by year
YearWettest day (Rx1day)
190629.7 mm (1.2 in)
190728.4 mm (1.1 in)
190835.1 mm (1.4 in)
190926.2 mm (1.0 in)
191020.6 mm (0.8 in)
191127.9 mm (1.1 in)
191225.9 mm (1.0 in)
191314.0 mm (0.6 in)
191415.7 mm (0.6 in)
191532.8 mm (1.3 in)
191616.8 mm (0.7 in)
191733.0 mm (1.3 in)
19438.4 mm (0.33 in)
194440.1 mm (1.6 in)
194519.6 mm (0.8 in)
194618.3 mm (0.7 in)
19479.7 mm (0.38 in)
194822.4 mm (0.9 in)
194914.0 mm (0.6 in)
195010.9 mm (0.4 in)
195115.0 mm (0.6 in)
195225.4 mm (1.0 in)
195312.4 mm (0.5 in)
195422.6 mm (0.9 in)
195513.2 mm (0.5 in)
195620.3 mm (0.8 in)
195718.8 mm (0.7 in)
195820.8 mm (0.8 in)
195923.9 mm (0.9 in)
196039.4 mm (1.6 in)
196115.7 mm (0.6 in)
196230.5 mm (1.2 in)
196320.8 mm (0.8 in)
19649.7 mm (0.38 in)
196522.9 mm (0.9 in)
196620.8 mm (0.8 in)
196726.2 mm (1.0 in)
196829.2 mm (1.1 in)
196947.5 mm (1.9 in)
197037.3 mm (1.5 in)
197140.1 mm (1.6 in)
197223.9 mm (0.9 in)
197335.1 mm (1.4 in)
197422.6 mm (0.9 in)
197514.7 mm (0.6 in)
197629.2 mm (1.1 in)
197733.5 mm (1.3 in)
197851.8 mm (2.0 in)
19799.9 mm (0.39 in)
198020.8 mm (0.8 in)
198121.6 mm (0.9 in)
198229.2 mm (1.1 in)
198325.4 mm (1.0 in)
198416.8 mm (0.7 in)
198526.7 mm (1.1 in)
198615.7 mm (0.6 in)
198716.8 mm (0.7 in)
198823.6 mm (0.9 in)
198919.8 mm (0.8 in)
199013.7 mm (0.5 in)
199134.5 mm (1.4 in)
199219.6 mm (0.8 in)
199312.7 mm (0.5 in)
199426.4 mm (1.0 in)
199531.2 mm (1.2 in)
199633.0 mm (1.3 in)
199724.1 mm (0.9 in)
199827.9 mm (1.1 in)
199940.6 mm (1.6 in)
200019.3 mm (0.8 in)
200130.2 mm (1.2 in)
200216.0 mm (0.6 in)
200315.2 mm (0.6 in)
200424.1 mm (0.9 in)
200530.0 mm (1.2 in)
200621.1 mm (0.8 in)
200718.5 mm (0.7 in)
200818.8 mm (0.7 in)
20099.7 mm (0.38 in)
201064.8 mm (2.6 in)
201118.8 mm (0.7 in)
201219.8 mm (0.8 in)
201319.1 mm (0.8 in)
201429.0 mm (1.1 in)
201524.1 mm (0.9 in)
201630.0 mm (1.2 in)
201735.6 mm (1.4 in)
201822.1 mm (0.9 in)
201935.1 mm (1.4 in)
202022.9 mm (0.9 in)
202113.0 mm (0.5 in)
202222.9 mm (0.9 in)
20237.6 mm (0.30 in)
202530.2 mm (1.2 in)
202627.4 mm (1.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Delano by year The wettest five days of the year at Delano, 1906 to 2026. The record is 115.8 mm (4.6 in) in 2010, marked on the chart; the median year is 34.1 mm (1.3 in). 050100150192019401960198020002020Record: 115.8 mm (4.6 in) in 2010
The wettest five days of the year at Delano, 1906 to 2026. The record is 115.8 mm (4.6 in) in 2010, marked on the chart; the median year is 34.1 mm (1.3 in).
Wettest five days (Rx5day) at Delano by year
YearWettest five days (Rx5day)
190645.5 mm (1.8 in)
190732.5 mm (1.3 in)
190839.2 mm (1.5 in)
190949.9 mm (2.0 in)
191026.2 mm (1.0 in)
19113.6 mm (0.14 in)
191242.6 mm (1.7 in)
191313.2 mm (0.5 in)
191439.9 mm (1.6 in)
191532.8 mm (1.3 in)
191643.8 mm (1.7 in)
191753.1 mm (2.1 in)
194315.5 mm (0.6 in)
194475.2 mm (3.0 in)
194539.2 mm (1.5 in)
194626.7 mm (1.1 in)
194710.5 mm (0.4 in)
194823.3 mm (0.9 in)
194925.4 mm (1.0 in)
195021.9 mm (0.9 in)
195118.9 mm (0.7 in)
195257.5 mm (2.3 in)
195320.9 mm (0.8 in)
195427.1 mm (1.1 in)
195538.3 mm (1.5 in)
195627.6 mm (1.1 in)
195725.5 mm (1.0 in)
195850.4 mm (2.0 in)
195932.8 mm (1.3 in)
196060.8 mm (2.4 in)
196124.8 mm (1.0 in)
196281.3 mm (3.2 in)
196329.1 mm (1.1 in)
196421.8 mm (0.9 in)
196545.2 mm (1.8 in)
196661.8 mm (2.4 in)
196737.1 mm (1.5 in)
196829.2 mm (1.1 in)
196969.2 mm (2.7 in)
197069.8 mm (2.7 in)
197152.5 mm (2.1 in)
197233.3 mm (1.3 in)
197353.1 mm (2.1 in)
197429.3 mm (1.2 in)
197533.0 mm (1.3 in)
197655.6 mm (2.2 in)
197747.2 mm (1.9 in)
1978112.0 mm (4.4 in)
197921.8 mm (0.9 in)
198044.5 mm (1.8 in)
198126.2 mm (1.0 in)
198241.2 mm (1.6 in)
198353.8 mm (2.1 in)
198425.4 mm (1.0 in)
198531.7 mm (1.2 in)
198636.1 mm (1.4 in)
198728.2 mm (1.1 in)
198838.0 mm (1.5 in)
198924.9 mm (1.0 in)
199015.0 mm (0.6 in)
199169.8 mm (2.7 in)
199254.3 mm (2.1 in)
199331.5 mm (1.2 in)
199431.5 mm (1.2 in)
199549.8 mm (2.0 in)
199650.1 mm (2.0 in)
199731.0 mm (1.2 in)
199847.1 mm (1.9 in)
199974.6 mm (2.9 in)
200034.8 mm (1.4 in)
200135.6 mm (1.4 in)
200234.5 mm (1.4 in)
200318.6 mm (0.7 in)
200427.0 mm (1.1 in)
200535.3 mm (1.4 in)
200642.2 mm (1.7 in)
200718.8 mm (0.7 in)
200827.0 mm (1.1 in)
200916.0 mm (0.6 in)
2010115.8 mm (4.6 in)
201125.4 mm (1.0 in)
201233.6 mm (1.3 in)
201325.2 mm (1.0 in)
201434.8 mm (1.4 in)
201529.2 mm (1.1 in)
201631.0 mm (1.2 in)
201767.9 mm (2.7 in)
201824.6 mm (1.0 in)
201938.9 mm (1.5 in)
202035.5 mm (1.4 in)
20210.0 mm (0.00 in)
2022n/a
20230.0 mm (0.00 in)
202555.4 mm (2.2 in)
202649.3 mm (1.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Delano by year The longest dry spell of the year at Delano, 1906 to 2026. The record is 237 days in 1959, marked on the chart; the median year is 127 days. 0100200300192019401960198020002020Record: 237 days in 1959
The longest dry spell of the year at Delano, 1906 to 2026. The record is 237 days in 1959, marked on the chart; the median year is 127 days.
Longest dry spell (CDD) at Delano by year
YearLongest dry spell (CDD)
190635 days
1907190 days
1908143 days
190914 days
191040 days
191189 days
191232 days
191332 days
191430 days
191562 days
191625 days
191718 days
1943202 days
1944157 days
1945123 days
1946127 days
1947158 days
1948107 days
1949206 days
1950158 days
1951177 days
1952137 days
1953139 days
1954197 days
1955189 days
1956146 days
1957123 days
1958106 days
1959237 days
1960160 days
1961196 days
1962134 days
196383 days
1964174 days
1965127 days
1966104 days
1967115 days
1968193 days
1969120 days
1970193 days
1971124 days
1972116 days
1973112 days
1974174 days
197567 days
197692 days
197772 days
1978131 days
1979219 days
1980154 days
1981174 days
1982196 days
1983109 days
1984175 days
1985166 days
1986147 days
1987119 days
1988178 days
1989124 days
1990115 days
1991157 days
1992212 days
1993102 days
1994126 days
1995179 days
1996162 days
1997209 days
1998132 days
1999152 days
2000121 days
2001204 days
2002170 days
2003123 days
200496 days
2005153 days
2006132 days
2007152 days
2008224 days
2009129 days
2010141 days
2011121 days
2012196 days
201397 days
201498 days
201554 days
2016173 days
201761 days
201849 days
201944 days
202011 days
20215 days
20224 days
202362 days
202532 days
202696 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

69 years, 1907 to 2017

A day with at least 23.1 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 57.5 mm (2.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Delano: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years23.1 mm (0.9 in)
5 years32.2 mm (1.3 in)
10 years38.3 mm (1.5 in)
25 years46.0 mm (1.8 in)
50 years51.7 mm (2.0 in)
100 years57.5 mm (2.3 in)Longer than the 69 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, 69 years of values from 1907 to 2017.

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: 64.8 mm (2.6 in) in 2010; 51.8 mm (2.0 in) in 1978; 47.5 mm (1.9 in) in 1969.

Download the Data

  • Data for Delano standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Delano 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 (2026-10-12).