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Kennebunkport Weather Records (USC00174193)

Record envelope, standing records and threshold days for Kennebunkport (USC00174193), Maine, United States, with 38 years of record.

Key Facts for Kennebunkport

  • Kennebunkport (USC00174193) is a weather station in Maine, United States at 43.36 latitude and -70.47 longitude, 6 m (20 ft) above sea level.
  • The station reports from 1989 to 2026, 38 years of record.
  • 1,464 records set at Kennebunkport still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Kennebunkport tied a daily record high minimum temperature of 16.1 C (61.0 F) on 14 September 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Maine, United States, 43.36 latitude, -70.47 longitude.
  • Elevation: 6 m (20 ft).
  • Period of record: 1989 to 2026, 38 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

16 days at or beyond a record
Daily record high and record low at Kennebunkport, with 2026 drawn through them The band shows the record high and record low for each calendar day at Kennebunkport. The lines show the 2026 daily maximum and minimum. 16 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 Kennebunkport. The lines show the 2026 daily maximum and minimum. 16 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Kennebunkport, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan17.2 C (63.0 F)-28.9 C (-20.0 F)7.8 C (46.0 F)-23.3 C (-9.9 F)
Feb20.0 C (68.0 F)-28.3 C (-18.9 F)8.3 C (46.9 F)-17.2 C (1.0 F)
Mar25.0 C (77.0 F)-23.3 C (-9.9 F)19.4 C (66.9 F)-18.3 C (-0.9 F)
Apr32.8 C (91.0 F)-10.6 C (12.9 F)19.4 C (66.9 F)-5.6 C (21.9 F)
May34.4 C (93.9 F)-8.9 C (16.0 F)34.4 C (93.9 F)-0.6 C (30.9 F)
Jun37.2 C (99.0 F)1.1 C (34.0 F)29.4 C (84.9 F)3.3 C (37.9 F)
Jul37.2 C (99.0 F)1.7 C (35.1 F)35.6 C (96.1 F)7.8 C (46.0 F)
Aug35.6 C (96.1 F)-1.7 C (28.9 F)32.2 C (90.0 F)10.0 C (50.0 F)
Sep33.9 C (93.0 F)-7.2 C (19.0 F)23.3 C (73.9 F)3.3 C (37.9 F)
Oct28.9 C (84.0 F)-11.1 C (12.0 F)16.7 C (62.1 F)12.8 C (55.0 F)
Nov26.1 C (79.0 F)-19.4 C (-2.9 F)n/an/a
Dec23.9 C (75.0 F)-26.1 C (-15.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Kennebunkport by the year they were set 1,464 records at Kennebunkport still stand. 1992 holds the most, with 58. 02040601989: 421990: 471991: 411992: 581993: 511994: 431995: 561996: 531997: 411998: 291999: 292000: 532001: 382002: 482003: 372004: 352005: 572006: 342007: 422008: 422009: 442010: 372011: 372012: 332013: 312014: 292015: 462016: 402017: 522018: 332019: 222020: 282021: 302022: 332023: 402024: 162025: 202026: 171989199319972001200520092013201720212025
1,464 records at Kennebunkport still stand. 1992 holds the most, with 58.
Standing records at Kennebunkport by the year they were set
Year setStanding records
198942
199047
199141
199258
199351
199443
199556
199653
199741
199829
199929
200053
200138
200248
200337
200435
200557
200634
200742
200842
200944
201037
201137
201233
201331
201429
201546
201640
201752
201833
201922
202028
202130
202233
202340
202416
202520
202617

Wettest Day of Each Month

Oct: 193.8 mm (7.6 in)
Record daily precipitation for each month at Kennebunkport The wettest day on record for each calendar month at Kennebunkport. The most was 193.8 mm (7.6 in) on 21 October 1996. 050100150200 Jan: 80.0 mm (3.1 in), 14 January 2024 Jan Feb: 87.6 mm (3.4 in), 26 February 2010 Feb Mar: 101.6 mm (4.0 in), 15 March 2010 Mar Apr: 97.0 mm (3.8 in), 22 April 1991 Apr May: 109.2 mm (4.3 in), 14 May 2006 May Jun: 108.0 mm (4.3 in), 14 June 1998 Jun Jul: 104.1 mm (4.1 in), 14 July 2010 Jul Aug: 134.9 mm (5.3 in), 20 August 1991 Aug Sep: 144.8 mm (5.7 in), 7 September 2008 Sep Oct: 193.8 mm (7.6 in), 21 October 1996 Oct Nov: 130.8 mm (5.1 in), 15 November 2009 Nov Dec: 99.1 mm (3.9 in), 10 December 2014 Dec
The wettest day on record for each calendar month at Kennebunkport. The most was 193.8 mm (7.6 in) on 21 October 1996.
Record daily precipitation for each month at Kennebunkport
MonthRecord daily precipitation (mm)Date
Jan80.0 mm (3.1 in)14 January 2024
Feb87.6 mm (3.4 in)26 February 2010
Mar101.6 mm (4.0 in)15 March 2010
Apr97.0 mm (3.8 in)22 April 1991
May109.2 mm (4.3 in)14 May 2006
Jun108.0 mm (4.3 in)14 June 1998
Jul104.1 mm (4.1 in)14 July 2010
Aug134.9 mm (5.3 in)20 August 1991
Sep144.8 mm (5.7 in)7 September 2008
Oct193.8 mm (7.6 in)21 October 1996
Nov130.8 mm (5.1 in)15 November 2009
Dec99.1 mm (3.9 in)10 December 2014

Period of Record Coverage

1989 to 2026
Days with data per year at Kennebunkport 38 years of record at Kennebunkport, 1989 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1989, 2026. 1989: 209 of 365 days1990: 365 of 365 days1991: 360 of 365 days1992: 365 of 366 days1993: 363 of 365 days1994: 364 of 365 days1995: 363 of 365 days1996: 362 of 366 days1997: 363 of 365 days1998: 360 of 365 days1999: 362 of 365 days2000: 364 of 366 days2001: 365 of 365 days2002: 359 of 365 days2003: 358 of 365 days2004: 351 of 366 days2005: 353 of 365 days2006: 349 of 365 days2007: 358 of 365 days2008: 354 of 366 days2009: 364 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 363 of 365 days2016: 366 of 366 days2017: 364 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 365 of 366 days2021: 364 of 365 days2022: 365 of 365 days2023: 363 of 365 days2024: 366 of 366 days2025: 342 of 365 days2026: 253 of 365 days19901995200020052010201520202025
38 years of record at Kennebunkport, 1989 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1989, 2026.
Days with data per year at Kennebunkport
YearDays with dataShare of yearComplete
198920957%No
1990365100%Yes
199136099%Yes
1992365100%Yes
199336399%Yes
1994364100%Yes
199536399%Yes
199636299%Yes
199736399%Yes
199836099%Yes
199936299%Yes
200036499%Yes
2001365100%Yes
200235998%Yes
200335898%Yes
200435196%Yes
200535397%Yes
200634996%Yes
200735898%Yes
200835497%Yes
2009364100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
201536399%Yes
2016366100%Yes
2017364100%Yes
2018365100%Yes
2019365100%Yes
2020365100%Yes
2021364100%Yes
2022365100%Yes
202336399%Yes
2024366100%Yes
202534294%Yes
202625369%No

Latest Records

20
Latest records at Kennebunkport
DateStationRecordValueBeat old record byOld record stoodSignificance
14 September 2026Kennebunkport, USdaily high min (Tie, Provisional)16.1 C (61.0 F)tie4 years1 of 100 (Routine)
17 August 2026Kennebunkport, USdaily rain (Provisional)15.5 mm (0.6 in)0.3 mm (0.01 in)9 years5 of 100 (Routine)
9 August 2026Kennebunkport, USdaily high max31.1 C (88.0 F)0.5 C (0.9 F)25 years11 of 100 (Routine)
8 August 2026Kennebunkport, USdaily high min (Tie)21.1 C (70.0 F)tie24 years2 of 100 (Routine)
7 August 2026Kennebunkport, USdaily high max (Tie)29.4 C (84.9 F)tie8 years1 of 100 (Routine)
5 August 2026Kennebunkport, USdaily high max (Tie)30.0 C (86.0 F)tie19 years2 of 100 (Routine)
4 August 2026Kennebunkport, USdaily rain28.7 mm (1.1 in)14.2 mm (0.6 in)8 years13 of 100 (Routine)
15 July 2026Kennebunkport, USdaily high min (Tie)21.1 C (70.0 F)tie31 years3 of 100 (Routine)
4 July 2026Kennebunkport, USdaily high max33.9 C (93.0 F)0.6 C (1.1 F)24 years11 of 100 (Routine)
4 July 2026Kennebunkport, USdaily high min20.6 C (69.1 F)0.6 C (1.1 F)24 years11 of 100 (Routine)
3 July 2026Kennebunkport, USdaily high max35.6 C (96.1 F)4.5 C (8.1 F)8 years17 of 100 (Routine)
3 July 2026Kennebunkport, USdaily high min21.7 C (71.1 F)1.7 C (3.1 F)24 years15 of 100 (Routine)
2 July 2026Kennebunkport, USdaily high min (Tie)18.3 C (64.9 F)tie0 years0 of 100 (Routine)
23 June 2026Kennebunkport, USdaily rain69.3 mm (2.7 in)46.2 mm (1.8 in)29 years47 of 100 (Notable)
15 June 2026Kennebunkport, USdaily high min (Tie)16.1 C (61.0 F)tie27 years2 of 100 (Routine)
7 June 2026Kennebunkport, USdaily high min (Tie)16.1 C (61.0 F)tie4 years1 of 100 (Routine)
6 June 2026Kennebunkport, USdaily high max (Tie)26.7 C (80.1 F)tie0 years0 of 100 (Routine)
2 June 2026Kennebunkport, USdaily low min (Tie)3.3 C (37.9 F)tie32 years3 of 100 (Routine)
31 May 2026Kennebunkport, USdaily low min1.1 C (34.0 F)1.1 C (2.0 F)36 years15 of 100 (Routine)
30 May 2026Kennebunkport, USdaily rain52.3 mm (2.1 in)13.2 mm (0.5 in)36 years24 of 100 (Routine)

Climate Trend

33 complete years, 1990 to 2024
Annual mean temperature at Kennebunkport as warming stripes, 1990 to 2024 One stripe for each of 33 complete years at Kennebunkport, 1990 to 2024. Blue stripes are years cooler than the station's own mean of 7.5 C (45.6 F); red stripes are warmer. The coolest year was 1992, at 6.4 C (43.4 F), and the warmest was 2023, at 8.9 C (48.0 F). The strongest colour marks a difference of 1.4 C (2.5 F). 1990: 8.0 C, +0.4 C from the station mean1991: 7.9 C, +0.4 C from the station mean1992: 6.4 C, -1.2 C from the station mean1993: 6.5 C, -1.1 C from the station mean1994: 6.8 C, -0.8 C from the station mean1995: 6.8 C, -0.7 C from the station mean1996: 6.8 C, -0.8 C from the station mean1997: 7.1 C, -0.5 C from the station mean1998: 8.4 C, +0.8 C from the station mean1999: 8.3 C, +0.8 C from the station mean2000: 6.8 C, -0.7 C from the station mean2001: 7.5 C, -0.1 C from the station mean2002: 7.5 C, 0.0 C from the station mean2003: 6.4 C, -1.1 C from the station mean2004: 6.7 C, -0.8 C from the station mean2005: 6.5 C, -1.0 C from the station mean2006: 8.4 C, +0.8 C from the station mean2007: 7.0 C, -0.6 C from the station mean2008: 7.2 C, -0.4 C from the station mean2010: 8.7 C, +1.2 C from the station mean2011: 7.8 C, +0.2 C from the station mean2013: 7.6 C, 0.0 C from the station mean2014: 7.1 C, -0.4 C from the station mean2015: 7.0 C, -0.5 C from the station mean2016: 8.2 C, +0.6 C from the station mean2017: 7.8 C, +0.3 C from the station mean2018: 7.7 C, +0.2 C from the station mean2019: 7.1 C, -0.5 C from the station mean2020: 8.5 C, +0.9 C from the station mean2021: 8.8 C, +1.2 C from the station mean2022: 8.2 C, +0.7 C from the station mean2023: 8.9 C, +1.4 C from the station mean2024: 8.8 C, +1.2 C from the station mean1990199520002005201020152020
One stripe for each of 33 complete years at Kennebunkport, 1990 to 2024. Blue stripes are years cooler than the station's own mean of 7.5 C (45.6 F); red stripes are warmer. The coolest year was 1992, at 6.4 C (43.4 F), and the warmest was 2023, at 8.9 C (48.0 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Kennebunkport as warming stripes, 1990 to 2024
YearAnnual mean temperatureDifference from the station mean
19908.0 C+0.42 C
19917.9 C+0.39 C
19926.4 C-1.18 C
19936.5 C-1.09 C
19946.8 C-0.75 C
19956.8 C-0.73 C
19966.8 C-0.79 C
19977.1 C-0.49 C
19988.4 C+0.82 C
19998.3 C+0.79 C
20006.8 C-0.70 C
20017.5 C-0.07 C
20027.5 C0.00 C
20036.4 C-1.11 C
20046.7 C-0.82 C
20056.5 C-1.01 C
20068.4 C+0.81 C
20077.0 C-0.56 C
20087.2 C-0.38 C
20108.7 C+1.19 C
20117.8 C+0.21 C
20137.6 C+0.01 C
20147.1 C-0.43 C
20157.0 C-0.52 C
20168.2 C+0.62 C
20177.8 C+0.29 C
20187.7 C+0.16 C
20197.1 C-0.45 C
20208.5 C+0.91 C
20218.8 C+1.22 C
20228.2 C+0.69 C
20238.9 C+1.37 C
20248.8 C+1.23 C

The annual mean temperature here has risen by 0.4 C (0.1 to 0.6) per decade over 1990 to 2024. In Fahrenheit: 0.7 F (0.3 to 1.1) per decade. The slope is a straight line fitted to 33 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Kennebunkport
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.4 C (0.1 to 0.6) per decade0.7 F (0.3 to 1.1) per decade1990 to 202433Rise
Mean daily maximum0.26 C (0.02 to 0.50) per decade0.47 F (0.04 to 0.90) per decade1990 to 202433Rise
Mean daily minimum0.5 C (0.3 to 0.8) per decade0.9 F (0.5 to 1.4) per decade1990 to 202433Rise

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

1989 to 2026
Yearly extremes at Kennebunkport: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.2 C (99.0 F)201133.6 C (92.5 F)38
Coldest night (TNn)-28.9 C (-20.0 F)1994-22.2 C (-8.0 F)38
Wettest day (Rx1day)193.8 mm (7.6 in)199679.4 mm (3.1 in)38
Wettest five days (Rx5day)337.1 mm (13.3 in)1996107.7 mm (4.2 in)38
Longest dry spell (CDD)23 days202415 days38

Hottest day (TXx)

Hottest day (TXx) at Kennebunkport by year The hottest day of the year at Kennebunkport, 1989 to 2026. The record is 37.2 C (99.0 F) in 2011, marked on the chart; the median year is 33.6 C (92.5 F). 2830323436381990200020102020Record: 37.2 C (99.0 F) in 2011
The hottest day of the year at Kennebunkport, 1989 to 2026. The record is 37.2 C (99.0 F) in 2011, marked on the chart; the median year is 33.6 C (92.5 F).
Hottest day (TXx) at Kennebunkport by year
YearHottest day (TXx)
198932.2 C (90.0 F)
199032.8 C (91.0 F)
199135.0 C (95.0 F)
199230.6 C (87.1 F)
199336.7 C (98.1 F)
199432.2 C (90.0 F)
199536.1 C (97.0 F)
199630.6 C (87.1 F)
199733.9 C (93.0 F)
199833.9 C (93.0 F)
199936.1 C (97.0 F)
200031.7 C (89.1 F)
200135.6 C (96.1 F)
200233.3 C (91.9 F)
200332.8 C (91.0 F)
200434.4 C (93.9 F)
200533.9 C (93.0 F)
200635.0 C (95.0 F)
200733.3 C (91.9 F)
200830.6 C (87.1 F)
200932.8 C (91.0 F)
201033.9 C (93.0 F)
201137.2 C (99.0 F)
201232.2 C (90.0 F)
201335.0 C (95.0 F)
201429.4 C (84.9 F)
201532.8 C (91.0 F)
201635.6 C (96.1 F)
201733.3 C (91.9 F)
201833.3 C (91.9 F)
201934.4 C (93.9 F)
202033.9 C (93.0 F)
202133.9 C (93.0 F)
202232.8 C (91.0 F)
202332.2 C (90.0 F)
202432.8 C (91.0 F)
202537.2 C (99.0 F)
202635.6 C (96.1 F)

Coldest night (TNn)

Coldest night (TNn) at Kennebunkport by year The coldest night of the year at Kennebunkport, 1989 to 2026. The record is -28.9 C (-20.0 F) in 1994, marked on the chart; the median year is -22.2 C (-8.0 F). -30-25-20-15-101990200020102020Record: -28.9 C (-20.0 F) in 1994
The coldest night of the year at Kennebunkport, 1989 to 2026. The record is -28.9 C (-20.0 F) in 1994, marked on the chart; the median year is -22.2 C (-8.0 F).
Coldest night (TNn) at Kennebunkport by year
YearColdest night (TNn)
1989-26.1 C (-15.0 F)
1990-21.1 C (-6.0 F)
1991-21.1 C (-6.0 F)
1992-21.7 C (-7.1 F)
1993-25.0 C (-13.0 F)
1994-28.9 C (-20.0 F)
1995-22.2 C (-8.0 F)
1996-25.6 C (-14.1 F)
1997-21.7 C (-7.1 F)
1998-20.0 C (-4.0 F)
1999-21.1 C (-6.0 F)
2000-22.2 C (-8.0 F)
2001-20.6 C (-5.1 F)
2002-18.9 C (-2.0 F)
2003-28.3 C (-18.9 F)
2004-24.4 C (-11.9 F)
2005-27.8 C (-18.0 F)
2006-17.8 C (0.0 F)
2007-20.6 C (-5.1 F)
2008-20.6 C (-5.1 F)
2009-26.7 C (-16.1 F)
2010-21.7 C (-7.1 F)
2011-22.8 C (-9.0 F)
2012-21.7 C (-7.1 F)
2013-22.8 C (-9.0 F)
2014-24.4 C (-11.9 F)
2015-27.2 C (-17.0 F)
2016-24.4 C (-11.9 F)
2017-26.1 C (-15.0 F)
2018-28.9 C (-20.0 F)
2019-18.3 C (-0.9 F)
2020-18.3 C (-0.9 F)
2021-17.8 C (0.0 F)
2022-22.8 C (-9.0 F)
2023-25.6 C (-14.1 F)
2024-14.4 C (6.1 F)
2025-22.2 C (-8.0 F)
2026-23.3 C (-9.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Kennebunkport by year The wettest day of the year at Kennebunkport, 1989 to 2026. The record is 193.8 mm (7.6 in) in 1996, marked on the chart; the median year is 79.4 mm (3.1 in). 0501001502001990200020102020Record: 193.8 mm (7.6 in) in 1996
The wettest day of the year at Kennebunkport, 1989 to 2026. The record is 193.8 mm (7.6 in) in 1996, marked on the chart; the median year is 79.4 mm (3.1 in).
Wettest day (Rx1day) at Kennebunkport by year
YearWettest day (Rx1day)
198945.2 mm (1.8 in)
1990114.8 mm (4.5 in)
1991134.9 mm (5.3 in)
199250.8 mm (2.0 in)
199360.5 mm (2.4 in)
199495.0 mm (3.7 in)
199573.2 mm (2.9 in)
1996193.8 mm (7.6 in)
199775.7 mm (3.0 in)
1998123.4 mm (4.9 in)
199996.0 mm (3.8 in)
200059.9 mm (2.4 in)
200177.7 mm (3.1 in)
200255.6 mm (2.2 in)
200342.9 mm (1.7 in)
200471.6 mm (2.8 in)
2005121.9 mm (4.8 in)
2006109.2 mm (4.3 in)
2007114.3 mm (4.5 in)
2008144.8 mm (5.7 in)
2009130.8 mm (5.1 in)
2010104.1 mm (4.1 in)
201167.8 mm (2.7 in)
201288.9 mm (3.5 in)
2013112.8 mm (4.4 in)
2014129.8 mm (5.1 in)
201567.3 mm (2.6 in)
201691.4 mm (3.6 in)
201762.0 mm (2.4 in)
201887.6 mm (3.4 in)
201972.4 mm (2.9 in)
202057.2 mm (2.3 in)
2021133.1 mm (5.2 in)
202258.4 mm (2.3 in)
202378.7 mm (3.1 in)
202480.0 mm (3.1 in)
202535.3 mm (1.4 in)
202669.3 mm (2.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Kennebunkport by year The wettest five days of the year at Kennebunkport, 1989 to 2026. The record is 337.1 mm (13.3 in) in 1996, marked on the chart; the median year is 107.7 mm (4.2 in). 01002003004001990200020102020Record: 337.1 mm (13.3 in) in 1996
The wettest five days of the year at Kennebunkport, 1989 to 2026. The record is 337.1 mm (13.3 in) in 1996, marked on the chart; the median year is 107.7 mm (4.2 in).
Wettest five days (Rx5day) at Kennebunkport by year
YearWettest five days (Rx5day)
198989.7 mm (3.5 in)
1990135.4 mm (5.3 in)
1991212.6 mm (8.4 in)
199268.2 mm (2.7 in)
199387.0 mm (3.4 in)
1994104.4 mm (4.1 in)
199593.5 mm (3.7 in)
1996337.1 mm (13.3 in)
199795.5 mm (3.8 in)
1998241.4 mm (9.5 in)
1999109.5 mm (4.3 in)
2000120.6 mm (4.7 in)
2001104.4 mm (4.1 in)
200273.1 mm (2.9 in)
200369.8 mm (2.7 in)
2004105.0 mm (4.1 in)
2005192.5 mm (7.6 in)
2006220.7 mm (8.7 in)
2007149.9 mm (5.9 in)
2008155.7 mm (6.1 in)
2009130.8 mm (5.1 in)
2010201.0 mm (7.9 in)
201180.8 mm (3.2 in)
2012139.2 mm (5.5 in)
2013122.2 mm (4.8 in)
2014131.8 mm (5.2 in)
201580.6 mm (3.2 in)
2016105.9 mm (4.2 in)
201779.5 mm (3.1 in)
2018104.1 mm (4.1 in)
201996.0 mm (3.8 in)
202092.2 mm (3.6 in)
2021208.0 mm (8.2 in)
2022113.5 mm (4.5 in)
2023138.4 mm (5.4 in)
2024153.2 mm (6.0 in)
202574.2 mm (2.9 in)
202677.7 mm (3.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Kennebunkport by year The longest dry spell of the year at Kennebunkport, 1989 to 2026. The record is 23 days in 2024, marked on the chart; the median year is 15 days. 101520251990200020102020Record: 23 days in 2024
The longest dry spell of the year at Kennebunkport, 1989 to 2026. The record is 23 days in 2024, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Kennebunkport by year
YearLongest dry spell (CDD)
198915 days
199015 days
199118 days
199214 days
199312 days
199422 days
199515 days
199620 days
199719 days
199817 days
199915 days
200011 days
200114 days
200210 days
200316 days
200422 days
200515 days
200618 days
200714 days
200819 days
200914 days
201021 days
201112 days
201217 days
201315 days
201417 days
201517 days
201615 days
201712 days
201813 days
201913 days
202018 days
202116 days
202215 days
202318 days
202423 days
202513 days
202614 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

33 years with a frost

Across 33 years with a frost, the median last spring frost at Kennebunkport falls on 11 May and the median first autumn frost on 6 October, which leaves a median of 149 days between them.

Fitted over all years, the growing season changes by +6.5 days per decade at this station.

Frost dates and growing season at Kennebunkport
MeasureMedian, all yearsEarliest periodRecent period (1993 to 2024)Recent against earliestFitted trend
Last spring frost11 Mayn/a11 Mayn/a-1.4 days per decade
First autumn frost6 Octobern/a6 Octobern/a+5.1 days per decade
Growing days149 daysn/a147 daysn/a+6.5 days per decade

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.

Rainfall Return Levels

36 years, 1990 to 2025

A day with at least 86.0 mm (3.4 in) of rain is expected about once in 2 years. A day with at least 195.1 mm (7.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Kennebunkport: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years86.0 mm (3.4 in)
5 years117.1 mm (4.6 in)
10 years137.0 mm (5.4 in)
25 years161.1 mm (6.3 in)
50 years178.4 mm (7.0 in)Longer than the 36 years of record
100 years195.1 mm (7.7 in)Longer than the 36 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, 36 years of values from 1990 to 2025.

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: 193.8 mm (7.6 in) in 1996; 144.8 mm (5.7 in) in 2008; 134.9 mm (5.3 in) in 1991.

Download the Data

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