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Built 2026-10-16 (16 October 2026)

Delano Weather Records (USC00212088)

Record envelope, standing records and threshold days for Delano (USC00212088), Minnesota, United States, with 50 years of record.

Key Facts for Delano

  • Delano (USC00212088) is a weather station in Minnesota, United States at 45.05 latitude and -93.78 longitude, 297 m (975 ft) above sea level.
  • The station reports from 1977 to 2026, 50 years of record.
  • 1,464 records set at Delano still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Delano set a daily record high maximum temperature of 31.7 C (89.1 F) on 12 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Minnesota, United States, 45.05 latitude, -93.78 longitude.
  • Elevation: 297 m (975 ft).
  • Period of record: 1977 to 2026, 50 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

14 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. 14 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 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. 14 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
Jan12.8 C (55.0 F)-36.7 C (-34.1 F)7.8 C (46.0 F)-30.6 C (-23.1 F)
Feb16.7 C (62.1 F)-38.3 C (-36.9 F)11.7 C (53.1 F)-21.1 C (-6.0 F)
Mar26.1 C (79.0 F)-28.9 C (-20.0 F)24.4 C (75.9 F)-19.4 C (-2.9 F)
Apr33.9 C (93.0 F)-16.1 C (3.0 F)30.6 C (87.1 F)-8.9 C (16.0 F)
May35.6 C (96.1 F)-3.9 C (25.0 F)31.7 C (89.1 F)-2.8 C (27.0 F)
Jun38.3 C (100.9 F)2.2 C (36.0 F)32.8 C (91.0 F)8.3 C (46.9 F)
Jul40.0 C (104.0 F)5.0 C (41.0 F)35.6 C (96.1 F)10.6 C (51.1 F)
Aug37.8 C (100.0 F)2.8 C (37.0 F)31.1 C (88.0 F)10.6 C (51.1 F)
Sep36.1 C (97.0 F)-1.7 C (28.9 F)31.7 C (89.1 F)7.2 C (45.0 F)
Oct32.2 C (90.0 F)-10.6 C (12.9 F)31.7 C (89.1 F)3.3 C (37.9 F)
Nov25.0 C (77.0 F)-23.9 C (-11.0 F)n/an/a
Dec17.8 C (64.0 F)-32.8 C (-27.0 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. 1991 holds the most, with 60. 02040601977: 61978: 421979: 541980: 321981: 451982: 121986: 161987: 461988: 471989: 581990: 441991: 601992: 301993: 281994: 251995: 311996: 301997: 191998: 231999: 232000: 342001: 312002: 282003: 182004: 212005: 232006: 192007: 252008: 202009: 442010: 242011: 252012: 492013: 422014: 492015: 232016: 282017: 392018: 342019: 202020: 322021: 332022: 182023: 352024: 182025: 442026: 171977198219901995200020052010201520202025
1,464 records at Delano still stand. 1991 holds the most, with 60.
Standing records at Delano by the year they were set
Year setStanding records
19776
197842
197954
198032
198145
198212
198616
198746
198847
198958
199044
199160
199230
199328
199425
199531
199630
199719
199823
199923
200034
200131
200228
200318
200421
200523
200619
200725
200820
200944
201024
201125
201249
201342
201449
201523
201628
201739
201834
201920
202032
202133
202218
202335
202418
202544
202617

Wettest Day of Each Month

Jun: 141.5 mm (5.6 in)
Record daily precipitation for each month at Delano The wettest day on record for each calendar month at Delano. The most was 141.5 mm (5.6 in) on 25 June 2002. 050100150 Jan: 42.7 mm (1.7 in), 18 January 1996 Jan Feb: 27.9 mm (1.1 in), 26 February 1998 Feb Mar: 39.4 mm (1.6 in), 3 March 1989 Mar Apr: 105.4 mm (4.1 in), 23 April 2001 Apr May: 91.4 mm (3.6 in), 23 May 2011 May Jun: 141.5 mm (5.6 in), 25 June 2002 Jun Jul: 78.7 mm (3.1 in), 22 July 1997 Jul Aug: 105.9 mm (4.2 in), 4 August 2002 Aug Sep: 68.8 mm (2.7 in), 12 September 1978 Sep Oct: 68.6 mm (2.7 in), 3 October 2017 Oct Nov: 35.1 mm (1.4 in), 26 November 2001 Nov Dec: 50.8 mm (2.0 in), 6 December 2010 Dec
The wettest day on record for each calendar month at Delano. The most was 141.5 mm (5.6 in) on 25 June 2002.
Record daily precipitation for each month at Delano
MonthRecord daily precipitation (mm)Date
Jan42.7 mm (1.7 in)18 January 1996
Feb27.9 mm (1.1 in)26 February 1998
Mar39.4 mm (1.6 in)3 March 1989
Apr105.4 mm (4.1 in)23 April 2001
May91.4 mm (3.6 in)23 May 2011
Jun141.5 mm (5.6 in)25 June 2002
Jul78.7 mm (3.1 in)22 July 1997
Aug105.9 mm (4.2 in)4 August 2002
Sep68.8 mm (2.7 in)12 September 1978
Oct68.6 mm (2.7 in)3 October 2017
Nov35.1 mm (1.4 in)26 November 2001
Dec50.8 mm (2.0 in)6 December 2010

Period of Record Coverage

1977 to 2026
Days with data per year at Delano 47 years of record at Delano, 1977 to 2026. 26 years have data for under 90 percent of days and are left out of rankings: 1977, 1982, 1986, 1988, 1992, 1993, 1994, 1995 and others. 1977: 31 of 365 days1978: 365 of 365 days1979: 363 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 117 of 365 days1986: 184 of 365 days1987: 363 of 365 days1988: 303 of 366 days1989: 358 of 365 days1990: 346 of 365 days1991: 343 of 365 days1992: 247 of 366 days1993: 249 of 365 days1994: 240 of 365 days1995: 246 of 365 days1996: 249 of 366 days1997: 230 of 365 days1998: 225 of 365 days1999: 230 of 365 days2000: 220 of 366 days2001: 232 of 365 days2002: 228 of 365 days2003: 228 of 365 days2004: 213 of 366 days2005: 227 of 365 days2006: 281 of 365 days2007: 348 of 365 days2008: 356 of 366 days2009: 353 of 365 days2010: 324 of 365 days2011: 356 of 365 days2012: 352 of 366 days2013: 357 of 365 days2014: 362 of 365 days2015: 362 of 365 days2016: 365 of 366 days2017: 357 of 365 days2018: 354 of 365 days2019: 358 of 365 days2020: 324 of 366 days2021: 287 of 365 days2022: 268 of 365 days2023: 316 of 365 days2024: 232 of 366 days2025: 361 of 365 days2026: 278 of 365 days19801990200020102020
47 years of record at Delano, 1977 to 2026. 26 years have data for under 90 percent of days and are left out of rankings: 1977, 1982, 1986, 1988, 1992, 1993, 1994, 1995 and others.
Days with data per year at Delano
YearDays with dataShare of yearComplete
1977318%No
1978365100%Yes
197936399%Yes
1980366100%Yes
1981365100%Yes
198211732%No
198618450%No
198736399%Yes
198830383%No
198935898%Yes
199034695%Yes
199134394%Yes
199224767%No
199324968%No
199424066%No
199524667%No
199624968%No
199723063%No
199822562%No
199923063%No
200022060%No
200123264%No
200222862%No
200322862%No
200421358%No
200522762%No
200628177%No
200734895%Yes
200835697%Yes
200935397%Yes
201032489%No
201135698%Yes
201235296%Yes
201335798%Yes
201436299%Yes
201536299%Yes
2016365100%Yes
201735798%Yes
201835497%Yes
201935898%Yes
202032489%No
202128779%No
202226873%No
202331687%No
202423263%No
202536199%Yes
202627876%No

Latest Records

20
Latest records at Delano
DateStationRecordValueBeat old record byOld record stoodSignificance
12 October 2026Delano, USdaily high max (Provisional)31.7 C (89.1 F)3.9 C (7.0 F)11 years14 of 100 (Routine)
30 September 2026Delano, USdaily rain (Provisional)14.0 mm (0.6 in)6.4 mm (0.25 in)24 years16 of 100 (Routine)
30 September 2026Delano, USdaily high min (Provisional)16.1 C (61.0 F)0.5 C (0.9 F)19 years11 of 100 (Routine)
19 September 2026Delano, USdaily rain (Tie, Provisional)21.6 mm (0.9 in)tie37 years4 of 100 (Routine)
17 September 2026Delano, USdaily rain (Provisional)43.2 mm (1.7 in)36.8 mm (1.4 in)21 years36 of 100 (Notable)
7 September 2026Delano, USdaily high min (Provisional)20.0 C (68.0 F)0.6 C (1.1 F)9 years8 of 100 (Routine)
1 September 2026Delano, USdaily high max (Tie, Provisional)31.1 C (88.0 F)tie15 years2 of 100 (Routine)
31 August 2026Delano, USdaily high min (Tie, Provisional)18.9 C (66.0 F)tie47 years4 of 100 (Routine)
1 August 2026Delano, USdaily low max20.6 C (69.1 F)3.3 C (5.9 F)28 years22 of 100 (Routine)
31 July 2026Delano, USdaily rain28.7 mm (1.1 in)25.9 mm (1.0 in)24 years29 of 100 (Routine)
18 July 2026Delano, USdaily high max35.0 C (95.0 F)0.6 C (1.1 F)4 years7 of 100 (Routine)
28 June 2026Delano, USdaily rain29.2 mm (1.1 in)2.5 mm (0.10 in)28 years14 of 100 (Routine)
8 June 2026Delano, USdaily high min20.6 C (69.1 F)1.2 C (2.2 F)7 years10 of 100 (Routine)
20 May 2026Delano, USdaily low min1.1 C (34.0 F)0.6 C (1.1 F)24 years13 of 100 (Routine)
20 May 2026Delano, USdaily low max11.1 C (52.0 F)0.6 C (1.1 F)8 years8 of 100 (Routine)
8 May 2026Delano, USdaily low min (Tie)0.0 C (32.0 F)tie16 years2 of 100 (Routine)
7 May 2026Delano, USdaily low min-2.8 C (27.0 F)3.9 C (7.0 F)45 years26 of 100 (Routine)
7 May 2026Delano, USdaily low max (Tie)7.8 C (46.0 F)tie29 years3 of 100 (Routine)
23 April 2026Delano, USdaily high max30.6 C (87.1 F)3.4 C (6.1 F)36 years19 of 100 (Routine)
31 March 2026Delano, USdaily high max22.2 C (72.0 F)0.5 C (0.9 F)27 years13 of 100 (Routine)

Climate Trend

20 complete years, 1978 to 2025
Annual mean temperature at Delano as warming stripes, 1978 to 2025 One stripe for each of 20 complete years at Delano, 1978 to 2025. Blue stripes are years cooler than the station's own mean of 6.7 C (44.0 F); red stripes are warmer. The coolest year was 2014, at 4.8 C (40.7 F), and the warmest was 1987, at 8.9 C (48.0 F). The strongest colour marks a difference of 2.3 C (4.1 F). 1978: 5.9 C, -0.8 C from the station mean1979: 5.2 C, -1.4 C from the station mean1980: 6.3 C, -0.4 C from the station mean1981: 7.2 C, +0.5 C from the station mean1987: 8.9 C, +2.2 C from the station mean1989: 5.4 C, -1.3 C from the station mean1990: 7.3 C, +0.6 C from the station mean1991: 6.6 C, -0.1 C from the station mean2007: 7.3 C, +0.6 C from the station mean2008: 5.3 C, -1.4 C from the station mean2009: 5.7 C, -1.0 C from the station mean2011: 6.6 C, -0.1 C from the station mean2012: 8.4 C, +1.7 C from the station mean2013: 5.1 C, -1.6 C from the station mean2014: 4.8 C, -1.8 C from the station mean2015: 7.4 C, +0.7 C from the station mean2016: 8.4 C, +1.8 C from the station mean2017: 8.4 C, +1.7 C from the station mean2019: 5.7 C, -1.0 C from the station mean2025: 7.8 C, +1.1 C from the station mean1978198519901995200020052010201520202025
One stripe for each of 20 complete years at Delano, 1978 to 2025. Blue stripes are years cooler than the station's own mean of 6.7 C (44.0 F); red stripes are warmer. The coolest year was 2014, at 4.8 C (40.7 F), and the warmest was 1987, at 8.9 C (48.0 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Delano as warming stripes, 1978 to 2025
YearAnnual mean temperatureDifference from the station mean
19785.9 C-0.82 C
19795.2 C-1.45 C
19806.3 C-0.36 C
19817.2 C+0.53 C
19878.9 C+2.23 C
19895.4 C-1.30 C
19907.3 C+0.60 C
19916.6 C-0.07 C
20077.3 C+0.57 C
20085.3 C-1.42 C
20095.7 C-0.98 C
20116.6 C-0.09 C
20128.4 C+1.71 C
20135.1 C-1.56 C
20144.8 C-1.84 C
20157.4 C+0.68 C
20168.4 C+1.75 C
20178.4 C+1.69 C
20195.7 C-1.02 C
20257.8 C+1.11 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1977 to 2026
Yearly extremes at Delano: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.0 C (104.0 F)198835.0 C (95.0 F)47
Coldest night (TNn)-38.3 C (-36.9 F)1996-28.9 C (-20.0 F)47
Wettest day (Rx1day)141.5 mm (5.6 in)200255.9 mm (2.2 in)47
Wettest five days (Rx5day)219.0 mm (8.6 in)200274.6 mm (2.9 in)47
Longest dry spell (CDD)44 days199127 days47

Hottest day (TXx)

Hottest day (TXx) at Delano by year The hottest day of the year at Delano, 1977 to 2026. The record is 40.0 C (104.0 F) in 1988, marked on the chart; the median year is 35.0 C (95.0 F). 01020304019801990200020102020Record: 40.0 C (104.0 F) in 1988
The hottest day of the year at Delano, 1977 to 2026. The record is 40.0 C (104.0 F) in 1988, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Delano by year
YearHottest day (TXx)
19774.4 C (39.9 F)
197835.0 C (95.0 F)
197933.9 C (93.0 F)
198036.1 C (97.0 F)
198134.4 C (93.9 F)
198224.4 C (75.9 F)
198633.3 C (91.9 F)
198736.7 C (98.1 F)
198840.0 C (104.0 F)
198935.0 C (95.0 F)
199037.8 C (100.0 F)
199135.6 C (96.1 F)
199232.2 C (90.0 F)
199332.2 C (90.0 F)
199435.6 C (96.1 F)
199536.7 C (98.1 F)
199633.9 C (93.0 F)
199733.9 C (93.0 F)
199833.9 C (93.0 F)
199935.0 C (95.0 F)
200033.3 C (91.9 F)
200135.6 C (96.1 F)
200235.0 C (95.0 F)
200335.6 C (96.1 F)
200433.9 C (93.0 F)
200535.0 C (95.0 F)
200637.8 C (100.0 F)
200735.0 C (95.0 F)
200831.7 C (89.1 F)
200933.3 C (91.9 F)
201033.3 C (91.9 F)
201137.8 C (100.0 F)
201236.1 C (97.0 F)
201335.6 C (96.1 F)
201431.1 C (88.0 F)
201532.2 C (90.0 F)
201633.3 C (91.9 F)
201733.9 C (93.0 F)
201835.6 C (96.1 F)
201933.9 C (93.0 F)
202034.4 C (93.9 F)
202136.1 C (97.0 F)
202237.8 C (100.0 F)
202337.2 C (99.0 F)
202433.3 C (91.9 F)
202534.4 C (93.9 F)
202635.6 C (96.1 F)

Coldest night (TNn)

Coldest night (TNn) at Delano by year The coldest night of the year at Delano, 1977 to 2026. The record is -38.3 C (-36.9 F) in 1996, marked on the chart; the median year is -28.9 C (-20.0 F). -40-35-30-25-2019801990200020102020Record: -38.3 C (-36.9 F) in 1996
The coldest night of the year at Delano, 1977 to 2026. The record is -38.3 C (-36.9 F) in 1996, marked on the chart; the median year is -28.9 C (-20.0 F).
Coldest night (TNn) at Delano by year
YearColdest night (TNn)
1977-30.0 C (-22.0 F)
1978-30.6 C (-23.1 F)
1979-33.9 C (-29.0 F)
1980-28.3 C (-18.9 F)
1981-31.1 C (-24.0 F)
1982-33.3 C (-27.9 F)
1986-21.1 C (-6.0 F)
1987-26.1 C (-15.0 F)
1988-33.9 C (-29.0 F)
1989-32.2 C (-26.0 F)
1990-32.8 C (-27.0 F)
1991-28.3 C (-18.9 F)
1992-27.8 C (-18.0 F)
1993-27.8 C (-18.0 F)
1994-35.6 C (-32.1 F)
1995-26.7 C (-16.1 F)
1996-38.3 C (-36.9 F)
1997-32.2 C (-26.0 F)
1998-28.3 C (-18.9 F)
1999-29.4 C (-20.9 F)
2000-31.1 C (-24.0 F)
2001-27.8 C (-18.0 F)
2002-22.8 C (-9.0 F)
2003-28.9 C (-20.0 F)
2004-32.2 C (-26.0 F)
2005-27.2 C (-17.0 F)
2006-26.1 C (-15.0 F)
2007-28.3 C (-18.9 F)
2008-28.9 C (-20.0 F)
2009-32.8 C (-27.0 F)
2010-31.1 C (-24.0 F)
2011-31.1 C (-24.0 F)
2012-25.0 C (-13.0 F)
2013-27.8 C (-18.0 F)
2014-30.6 C (-23.1 F)
2015-27.8 C (-18.0 F)
2016-27.2 C (-17.0 F)
2017-26.1 C (-15.0 F)
2018-26.1 C (-15.0 F)
2019-36.7 C (-34.1 F)
2020-26.7 C (-16.1 F)
2021-33.3 C (-27.9 F)
2022-30.6 C (-23.1 F)
2023-27.8 C (-18.0 F)
2024-22.8 C (-9.0 F)
2025-28.9 C (-20.0 F)
2026-30.6 C (-23.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Delano by year The wettest day of the year at Delano, 1977 to 2026. The record is 141.5 mm (5.6 in) in 2002, marked on the chart; the median year is 55.9 mm (2.2 in). 05010015019801990200020102020Record: 141.5 mm (5.6 in) in 2002
The wettest day of the year at Delano, 1977 to 2026. The record is 141.5 mm (5.6 in) in 2002, marked on the chart; the median year is 55.9 mm (2.2 in).
Wettest day (Rx1day) at Delano by year
YearWettest day (Rx1day)
197714.2 mm (0.6 in)
197868.8 mm (2.7 in)
197940.1 mm (1.6 in)
198077.0 mm (3.0 in)
198135.6 mm (1.4 in)
198222.6 mm (0.9 in)
198629.2 mm (1.1 in)
198768.1 mm (2.7 in)
198829.2 mm (1.1 in)
198957.2 mm (2.3 in)
199046.5 mm (1.8 in)
199166.0 mm (2.6 in)
199266.0 mm (2.6 in)
199353.8 mm (2.1 in)
199434.5 mm (1.4 in)
199544.7 mm (1.8 in)
199642.7 mm (1.7 in)
199778.7 mm (3.1 in)
199853.3 mm (2.1 in)
199962.2 mm (2.4 in)
200043.2 mm (1.7 in)
2001105.4 mm (4.1 in)
2002141.5 mm (5.6 in)
200382.3 mm (3.2 in)
200447.5 mm (1.9 in)
200561.0 mm (2.4 in)
200672.1 mm (2.8 in)
200749.3 mm (1.9 in)
200861.0 mm (2.4 in)
200949.5 mm (1.9 in)
201072.4 mm (2.9 in)
201191.4 mm (3.6 in)
201290.7 mm (3.6 in)
201336.6 mm (1.4 in)
201483.8 mm (3.3 in)
201540.6 mm (1.6 in)
201666.5 mm (2.6 in)
201768.6 mm (2.7 in)
201853.1 mm (2.1 in)
201935.6 mm (1.4 in)
202052.8 mm (2.1 in)
202166.0 mm (2.6 in)
202224.6 mm (1.0 in)
202355.9 mm (2.2 in)
202455.9 mm (2.2 in)
202555.9 mm (2.2 in)
202643.2 mm (1.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Delano by year The wettest five days of the year at Delano, 1977 to 2026. The record is 219.0 mm (8.6 in) in 2002, marked on the chart; the median year is 74.6 mm (2.9 in). 010020030019801990200020102020Record: 219.0 mm (8.6 in) in 2002
The wettest five days of the year at Delano, 1977 to 2026. The record is 219.0 mm (8.6 in) in 2002, marked on the chart; the median year is 74.6 mm (2.9 in).
Wettest five days (Rx5day) at Delano by year
YearWettest five days (Rx5day)
197716.8 mm (0.7 in)
197885.0 mm (3.3 in)
197967.3 mm (2.6 in)
198094.0 mm (3.7 in)
198171.0 mm (2.8 in)
198229.7 mm (1.2 in)
198655.2 mm (2.2 in)
1987127.3 mm (5.0 in)
198834.6 mm (1.4 in)
198999.1 mm (3.9 in)
1990104.4 mm (4.1 in)
1991113.3 mm (4.5 in)
199269.3 mm (2.7 in)
199379.0 mm (3.1 in)
199470.9 mm (2.8 in)
199574.9 mm (2.9 in)
199642.7 mm (1.7 in)
1997165.7 mm (6.5 in)
199856.9 mm (2.2 in)
1999103.9 mm (4.1 in)
200043.2 mm (1.7 in)
2001117.3 mm (4.6 in)
2002219.0 mm (8.6 in)
2003102.1 mm (4.0 in)
200479.8 mm (3.1 in)
200564.8 mm (2.6 in)
200674.6 mm (2.9 in)
200769.9 mm (2.8 in)
200869.6 mm (2.7 in)
200999.3 mm (3.9 in)
2010107.5 mm (4.2 in)
201192.7 mm (3.6 in)
201290.7 mm (3.6 in)
201355.4 mm (2.2 in)
2014109.0 mm (4.3 in)
201564.8 mm (2.6 in)
201667.8 mm (2.7 in)
201758.2 mm (2.3 in)
2018110.3 mm (4.3 in)
201943.4 mm (1.7 in)
202081.0 mm (3.2 in)
202166.0 mm (2.6 in)
202223.4 mm (0.9 in)
202343.4 mm (1.7 in)
2024104.0 mm (4.1 in)
2025103.1 mm (4.1 in)
202674.2 mm (2.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Delano by year The longest dry spell of the year at Delano, 1977 to 2026. The record is 44 days in 1991, marked on the chart; the median year is 27 days. 102030405019801990200020102020Record: 44 days in 1991
The longest dry spell of the year at Delano, 1977 to 2026. The record is 44 days in 1991, marked on the chart; the median year is 27 days.
Longest dry spell (CDD) at Delano by year
YearLongest dry spell (CDD)
197710 days
197839 days
197925 days
198030 days
198128 days
198241 days
198629 days
198739 days
198831 days
198933 days
199036 days
199144 days
199218 days
199319 days
199430 days
199517 days
199624 days
199721 days
199830 days
199928 days
200028 days
200127 days
200226 days
200327 days
200420 days
200518 days
200615 days
200736 days
200825 days
200917 days
201029 days
201127 days
201231 days
201332 days
201424 days
201521 days
201623 days
201728 days
201824 days
201921 days
202021 days
202123 days
202210 days
202327 days
202435 days
202524 days
202616 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.

Frost Dates and Growing Season

20 years with a frost

Across 20 years with a frost, the median last spring frost at Delano falls on 2 May and the median first autumn frost on 8 October, which leaves a median of 158 days between them.

Frost dates and growing season at Delano
MeasureMedian, all yearsEarliest periodRecent period (1978 to 2025)Recent against earliestFitted trend
Last spring frost2 Mayn/a2 Mayn/an/a
First autumn frost8 Octobern/a8 Octobern/an/a
Growing days158 daysn/a158 daysn/an/a

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

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 (2026-10-14).