Built 2026-10-17 (17 October 2026)

Robbinston Weather Records (USC00177238)

Record envelope, standing records and threshold days for Robbinston (USC00177238), Maine, United States, with 33 years of record.

Key Facts for Robbinston

  • Robbinston (USC00177238) is a weather station in Maine, United States at 45.09 latitude and -67.12 longitude, 35 m (115 ft) above sea level.
  • The station reports from 1994 to 2026, 33 years of record.
  • 1,464 records set at Robbinston still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Robbinston set a daily record low minimum temperature of 4.4 C (39.9 F) on 9 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, 45.09 latitude, -67.12 longitude.
  • Elevation: 35 m (115 ft).
  • Period of record: 1994 to 2026, 33 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

18 days at or beyond a record
Daily record high and record low at Robbinston, with 2026 drawn through them The band shows the record high and record low for each calendar day at Robbinston. The lines show the 2026 daily maximum and minimum. 18 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 Robbinston. The lines show the 2026 daily maximum and minimum. 18 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Robbinston, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan13.9 C (57.0 F)-28.9 C (-20.0 F)8.9 C (48.0 F)-24.4 C (-11.9 F)
Feb17.2 C (63.0 F)-28.3 C (-18.9 F)6.7 C (44.1 F)-18.3 C (-0.9 F)
Mar28.3 C (82.9 F)-22.8 C (-9.0 F)17.8 C (64.0 F)-19.4 C (-2.9 F)
Apr28.3 C (82.9 F)-13.3 C (8.1 F)20.0 C (68.0 F)-4.4 C (24.1 F)
May33.3 C (91.9 F)-4.4 C (24.1 F)31.7 C (89.1 F)-0.6 C (30.9 F)
Jun36.1 C (97.0 F)1.1 C (34.0 F)31.1 C (88.0 F)1.1 C (34.0 F)
Jul36.1 C (97.0 F)6.7 C (44.1 F)34.4 C (93.9 F)8.9 C (48.0 F)
Aug35.0 C (95.0 F)5.0 C (41.0 F)33.3 C (91.9 F)10.0 C (50.0 F)
Sep35.0 C (95.0 F)-1.7 C (28.9 F)27.2 C (81.0 F)3.3 C (37.9 F)
Oct27.8 C (82.0 F)-5.6 C (21.9 F)22.8 C (73.0 F)0.6 C (33.1 F)
Nov22.8 C (73.0 F)-15.0 C (5.0 F)n/an/a
Dec16.1 C (61.0 F)-22.2 C (-8.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Robbinston by the year they were set 1,464 records at Robbinston still stand. 1996 holds the most, with 76. 0204060801994: 41995: 561996: 761997: 581998: 391999: 672000: 622001: 392002: 502003: 662004: 372005: 442006: 422007: 612008: 472009: 562010: 462011: 312012: 322013: 422014: 462015: 422016: 332017: 562018: 512019: 282020: 502021: 412022: 532023: 392024: 272025: 212026: 22199419982002200620102014201820222026
1,464 records at Robbinston still stand. 1996 holds the most, with 76.
Standing records at Robbinston by the year they were set
Year setStanding records
19944
199556
199676
199758
199839
199967
200062
200139
200250
200366
200437
200544
200642
200761
200847
200956
201046
201131
201232
201342
201446
201542
201633
201756
201851
201928
202050
202141
202253
202339
202427
202521
202622

Wettest Day of Each Month

Dec: 169.2 mm (6.7 in)
Record daily precipitation for each month at Robbinston The wettest day on record for each calendar month at Robbinston. The most was 169.2 mm (6.7 in) on 13 December 2010. 050100150200 Jan: 109.7 mm (4.3 in), 24 January 1998 Jan Feb: 91.9 mm (3.6 in), 13 February 2008 Feb Mar: 77.0 mm (3.0 in), 8 March 2008 Mar Apr: 85.1 mm (3.4 in), 19 April 2022 Apr May: 104.6 mm (4.1 in), 6 May 2017 May Jun: 71.9 mm (2.8 in), 8 June 2013 Jun Jul: 105.9 mm (4.2 in), 5 July 2014 Jul Aug: 109.0 mm (4.3 in), 26 August 2015 Aug Sep: 107.4 mm (4.2 in), 16 September 2023 Sep Oct: 100.6 mm (4.0 in), 20 October 2012 Oct Nov: 84.3 mm (3.3 in), 3 November 2007 Nov Dec: 169.2 mm (6.7 in), 13 December 2010 Dec
The wettest day on record for each calendar month at Robbinston. The most was 169.2 mm (6.7 in) on 13 December 2010.
Record daily precipitation for each month at Robbinston
MonthRecord daily precipitation (mm)Date
Jan109.7 mm (4.3 in)24 January 1998
Feb91.9 mm (3.6 in)13 February 2008
Mar77.0 mm (3.0 in)8 March 2008
Apr85.1 mm (3.4 in)19 April 2022
May104.6 mm (4.1 in)6 May 2017
Jun71.9 mm (2.8 in)8 June 2013
Jul105.9 mm (4.2 in)5 July 2014
Aug109.0 mm (4.3 in)26 August 2015
Sep107.4 mm (4.2 in)16 September 2023
Oct100.6 mm (4.0 in)20 October 2012
Nov84.3 mm (3.3 in)3 November 2007
Dec169.2 mm (6.7 in)13 December 2010

Period of Record Coverage

1994 to 2026
Days with data per year at Robbinston 33 years of record at Robbinston, 1994 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1994, 2026. 1994: 61 of 365 days1995: 364 of 365 days1996: 365 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 365 of 366 days2001: 364 of 365 days2002: 362 of 365 days2003: 364 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 364 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 364 of 365 days2018: 365 of 365 days2019: 364 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 361 of 365 days2024: 361 of 366 days2025: 364 of 365 days2026: 284 of 365 days1995200020052010201520202025
33 years of record at Robbinston, 1994 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1994, 2026.
Days with data per year at Robbinston
YearDays with dataShare of yearComplete
19946117%No
1995364100%Yes
1996365100%Yes
1997365100%Yes
1998365100%Yes
1999365100%Yes
2000365100%Yes
2001364100%Yes
200236299%Yes
2003364100%Yes
2004366100%Yes
2005365100%Yes
2006364100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017364100%Yes
2018365100%Yes
2019364100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
202336199%Yes
202436199%Yes
2025364100%Yes
202628478%No

Latest Records

20
Latest records at Robbinston
DateStationRecordValueBeat old record byOld record stoodSignificance
9 September 2026Robbinston, USdaily low min (Provisional)4.4 C (39.9 F)0.6 C (1.1 F)23 years10 of 100 (Routine)
6 September 2026Robbinston, USdaily low max (Provisional)17.2 C (63.0 F)1.7 C (3.1 F)12 years10 of 100 (Routine)
3 September 2026Robbinston, USdaily low max (Provisional)16.7 C (62.1 F)1.1 C (2.0 F)28 years13 of 100 (Routine)
3 September 2026Robbinston, USdaily rain (Provisional)28.7 mm (1.1 in)3.0 mm (0.12 in)5 years5 of 100 (Routine)
28 August 2026Robbinston, USdaily high min (Tie, Provisional)16.1 C (61.0 F)tie27 years2 of 100 (Routine)
23 August 2026Robbinston, USdaily rain (Provisional)22.6 mm (0.9 in)2.8 mm (0.11 in)4 years5 of 100 (Routine)
9 August 2026Robbinston, USdaily high min (Tie)16.7 C (62.1 F)tie8 years1 of 100 (Routine)
5 August 2026Robbinston, USdaily high max33.3 C (91.9 F)2.7 C (4.9 F)29 years18 of 100 (Routine)
30 July 2026Robbinston, USdaily high min16.7 C (62.1 F)0.6 C (1.1 F)16 years10 of 100 (Routine)
10 July 2026Robbinston, USdaily rain24.1 mm (0.9 in)11.9 mm (0.5 in)9 years14 of 100 (Routine)
4 July 2026Robbinston, USdaily high min (Tie)18.3 C (64.9 F)tie27 years2 of 100 (Routine)
2 July 2026Robbinston, USdaily high max33.9 C (93.0 F)0.6 C (1.1 F)12 years7 of 100 (Routine)
23 June 2026Robbinston, USdaily rain36.1 mm (1.4 in)12.5 mm (0.5 in)11 years16 of 100 (Routine)
18 June 2026Robbinston, USdaily low max (Tie)13.9 C (57.0 F)tie17 years2 of 100 (Routine)
4 June 2026Robbinston, USdaily high max30.0 C (86.0 F)3.3 C (5.9 F)4 years10 of 100 (Routine)
1 June 2026Robbinston, USmonthly low min1.1 C (34.0 F)0.6 C (1.1 F)25 years22 of 100 (Routine)
31 May 2026Robbinston, USdaily low min2.8 C (37.0 F)0.5 C (0.9 F)12 years7 of 100 (Routine)
20 May 2026Robbinston, USdaily high max31.7 C (89.1 F)4.5 C (8.1 F)23 years17 of 100 (Routine)
17 May 2026Robbinston, USdaily high max25.6 C (78.1 F)1.2 C (2.2 F)27 years13 of 100 (Routine)
17 May 2026Robbinston, USdaily high min11.1 C (52.0 F)1.7 C (3.1 F)12 years11 of 100 (Routine)

Climate Trend

31 complete years, 1995 to 2025
Annual mean temperature at Robbinston as warming stripes, 1995 to 2025 One stripe for each of 31 complete years at Robbinston, 1995 to 2025. Blue stripes are years cooler than the station's own mean of 6.9 C (44.4 F); red stripes are warmer. The coolest year was 1997, at 5.5 C (41.8 F), and the warmest was 2024, at 8.3 C (46.9 F). The strongest colour marks a difference of 1.5 C (2.7 F). 1995: 5.9 C, -1.0 C from the station mean1996: 5.8 C, -1.1 C from the station mean1997: 5.5 C, -1.4 C from the station mean1998: 7.1 C, +0.2 C from the station mean1999: 7.9 C, +1.0 C from the station mean2000: 6.5 C, -0.4 C from the station mean2001: 7.1 C, +0.2 C from the station mean2002: 6.6 C, -0.3 C from the station mean2003: 5.7 C, -1.1 C from the station mean2004: 5.5 C, -1.4 C from the station mean2005: 6.6 C, -0.3 C from the station mean2006: 7.7 C, +0.8 C from the station mean2007: 5.9 C, -1.0 C from the station mean2008: 6.5 C, -0.4 C from the station mean2009: 6.1 C, -0.8 C from the station mean2010: 8.2 C, +1.3 C from the station mean2011: 7.1 C, +0.2 C from the station mean2012: 7.6 C, +0.8 C from the station mean2013: 6.5 C, -0.4 C from the station mean2014: 6.4 C, -0.5 C from the station mean2015: 6.2 C, -0.7 C from the station mean2016: 7.7 C, +0.8 C from the station mean2017: 7.3 C, +0.4 C from the station mean2018: 7.0 C, +0.1 C from the station mean2019: 6.4 C, -0.5 C from the station mean2020: 7.8 C, +0.9 C from the station mean2021: 8.2 C, +1.3 C from the station mean2022: 7.8 C, +0.9 C from the station mean2023: 7.9 C, +1.0 C from the station mean2024: 8.3 C, +1.4 C from the station mean2025: 7.0 C, +0.1 C from the station mean1995200020052010201520202025
One stripe for each of 31 complete years at Robbinston, 1995 to 2025. Blue stripes are years cooler than the station's own mean of 6.9 C (44.4 F); red stripes are warmer. The coolest year was 1997, at 5.5 C (41.8 F), and the warmest was 2024, at 8.3 C (46.9 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Robbinston as warming stripes, 1995 to 2025
YearAnnual mean temperatureDifference from the station mean
19955.9 C-1.04 C
19965.8 C-1.06 C
19975.5 C-1.42 C
19987.1 C+0.22 C
19997.9 C+1.03 C
20006.5 C-0.42 C
20017.1 C+0.22 C
20026.6 C-0.28 C
20035.7 C-1.15 C
20045.5 C-1.38 C
20056.6 C-0.32 C
20067.7 C+0.80 C
20075.9 C-1.00 C
20086.5 C-0.43 C
20096.1 C-0.81 C
20108.2 C+1.27 C
20117.1 C+0.17 C
20127.6 C+0.75 C
20136.5 C-0.41 C
20146.4 C-0.50 C
20156.2 C-0.70 C
20167.7 C+0.77 C
20177.3 C+0.38 C
20187.0 C+0.10 C
20196.4 C-0.46 C
20207.8 C+0.92 C
20218.2 C+1.29 C
20227.8 C+0.93 C
20237.9 C+0.97 C
20248.3 C+1.39 C
20257.0 C+0.10 C

The annual mean temperature here has risen by 0.5 C (0.2 to 0.8) per decade over 1995 to 2025. In Fahrenheit: 0.9 F (0.4 to 1.5) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Robbinston
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.5 C (0.2 to 0.8) per decade0.9 F (0.4 to 1.5) per decade1995 to 202531Rise
Mean daily maximum0.5 C (0.2 to 0.8) per decade0.8 F (0.3 to 1.4) per decade1995 to 202531Rise
Mean daily minimum0.5 C (0.2 to 0.9) per decade1.0 F (0.4 to 1.6) per decade1995 to 202531Rise

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

1994 to 2026
Yearly extremes at Robbinston: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)36.1 C (97.0 F)199933.9 C (93.0 F)33
Coldest night (TNn)-28.9 C (-20.0 F)2004-23.3 C (-9.9 F)33
Wettest day (Rx1day)169.2 mm (6.7 in)201068.6 mm (2.7 in)33
Wettest five days (Rx5day)186.0 mm (7.3 in)2010106.4 mm (4.2 in)33
Longest dry spell (CDD)21 days199714 days33

Hottest day (TXx)

Hottest day (TXx) at Robbinston by year The hottest day of the year at Robbinston, 1994 to 2026. The record is 36.1 C (97.0 F) in 1999, marked on the chart; the median year is 33.9 C (93.0 F). 152025303540200020102020Record: 36.1 C (97.0 F) in 1999
The hottest day of the year at Robbinston, 1994 to 2026. The record is 36.1 C (97.0 F) in 1999, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at Robbinston by year
YearHottest day (TXx)
199417.2 C (63.0 F)
199535.0 C (95.0 F)
199631.1 C (88.0 F)
199733.3 C (91.9 F)
199833.3 C (91.9 F)
199936.1 C (97.0 F)
200032.8 C (91.0 F)
200135.0 C (95.0 F)
200235.6 C (96.1 F)
200331.1 C (88.0 F)
200433.9 C (93.0 F)
200535.0 C (95.0 F)
200633.9 C (93.0 F)
200733.3 C (91.9 F)
200831.7 C (89.1 F)
200934.4 C (93.9 F)
201035.0 C (95.0 F)
201132.2 C (90.0 F)
201233.9 C (93.0 F)
201334.4 C (93.9 F)
201433.3 C (91.9 F)
201531.7 C (89.1 F)
201632.2 C (90.0 F)
201732.8 C (91.0 F)
201835.6 C (96.1 F)
201934.4 C (93.9 F)
202036.1 C (97.0 F)
202134.4 C (93.9 F)
202235.0 C (95.0 F)
202332.8 C (91.0 F)
202435.6 C (96.1 F)
202535.0 C (95.0 F)
202634.4 C (93.9 F)

Coldest night (TNn)

Coldest night (TNn) at Robbinston by year The coldest night of the year at Robbinston, 1994 to 2026. The record is -28.9 C (-20.0 F) in 2004, marked on the chart; the median year is -23.3 C (-9.9 F). -30-25-20-15200020102020Record: -28.9 C (-20.0 F) in 2004
The coldest night of the year at Robbinston, 1994 to 2026. The record is -28.9 C (-20.0 F) in 2004, marked on the chart; the median year is -23.3 C (-9.9 F).
Coldest night (TNn) at Robbinston by year
YearColdest night (TNn)
1994-16.7 C (1.9 F)
1995-27.8 C (-18.0 F)
1996-23.9 C (-11.0 F)
1997-24.4 C (-11.9 F)
1998-22.2 C (-8.0 F)
1999-25.6 C (-14.1 F)
2000-22.2 C (-8.0 F)
2001-20.6 C (-5.1 F)
2002-21.7 C (-7.1 F)
2003-27.8 C (-18.0 F)
2004-28.9 C (-20.0 F)
2005-24.4 C (-11.9 F)
2006-18.9 C (-2.0 F)
2007-25.0 C (-13.0 F)
2008-23.9 C (-11.0 F)
2009-27.2 C (-17.0 F)
2010-19.4 C (-2.9 F)
2011-25.6 C (-14.1 F)
2012-21.7 C (-7.1 F)
2013-23.3 C (-9.9 F)
2014-27.8 C (-18.0 F)
2015-25.0 C (-13.0 F)
2016-22.2 C (-8.0 F)
2017-22.2 C (-8.0 F)
2018-22.8 C (-9.0 F)
2019-18.9 C (-2.0 F)
2020-21.7 C (-7.1 F)
2021-17.2 C (1.0 F)
2022-25.0 C (-13.0 F)
2023-28.3 C (-18.9 F)
2024-16.7 C (1.9 F)
2025-22.8 C (-9.0 F)
2026-24.4 C (-11.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Robbinston by year The wettest day of the year at Robbinston, 1994 to 2026. The record is 169.2 mm (6.7 in) in 2010, marked on the chart; the median year is 68.6 mm (2.7 in). 050100150200200020102020Record: 169.2 mm (6.7 in) in 2010
The wettest day of the year at Robbinston, 1994 to 2026. The record is 169.2 mm (6.7 in) in 2010, marked on the chart; the median year is 68.6 mm (2.7 in).
Wettest day (Rx1day) at Robbinston by year
YearWettest day (Rx1day)
199452.3 mm (2.1 in)
199562.5 mm (2.5 in)
199660.7 mm (2.4 in)
199746.0 mm (1.8 in)
1998109.7 mm (4.3 in)
199962.2 mm (2.4 in)
200053.8 mm (2.1 in)
200139.1 mm (1.5 in)
200262.7 mm (2.5 in)
200358.7 mm (2.3 in)
200464.0 mm (2.5 in)
200584.1 mm (3.3 in)
200659.2 mm (2.3 in)
200784.3 mm (3.3 in)
2008102.4 mm (4.0 in)
200978.5 mm (3.1 in)
2010169.2 mm (6.7 in)
201178.0 mm (3.1 in)
2012100.6 mm (4.0 in)
201397.8 mm (3.9 in)
2014105.9 mm (4.2 in)
2015109.0 mm (4.3 in)
201668.6 mm (2.7 in)
2017104.6 mm (4.1 in)
201872.1 mm (2.8 in)
201993.0 mm (3.7 in)
202061.2 mm (2.4 in)
202164.8 mm (2.6 in)
202285.1 mm (3.4 in)
2023107.4 mm (4.2 in)
202454.4 mm (2.1 in)
202545.5 mm (1.8 in)
202642.4 mm (1.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Robbinston by year The wettest five days of the year at Robbinston, 1994 to 2026. The record is 186.0 mm (7.3 in) in 2010, marked on the chart; the median year is 106.4 mm (4.2 in). 050100150200200020102020Record: 186.0 mm (7.3 in) in 2010
The wettest five days of the year at Robbinston, 1994 to 2026. The record is 186.0 mm (7.3 in) in 2010, marked on the chart; the median year is 106.4 mm (4.2 in).
Wettest five days (Rx5day) at Robbinston by year
YearWettest five days (Rx5day)
199477.5 mm (3.1 in)
199581.5 mm (3.2 in)
1996102.1 mm (4.0 in)
199765.8 mm (2.6 in)
1998119.9 mm (4.7 in)
199991.5 mm (3.6 in)
200093.5 mm (3.7 in)
200148.8 mm (1.9 in)
200278.0 mm (3.1 in)
2003130.5 mm (5.1 in)
2004105.7 mm (4.2 in)
2005165.5 mm (6.5 in)
2006106.4 mm (4.2 in)
2007126.0 mm (5.0 in)
2008131.4 mm (5.2 in)
2009107.2 mm (4.2 in)
2010186.0 mm (7.3 in)
201192.8 mm (3.7 in)
2012123.3 mm (4.9 in)
2013144.8 mm (5.7 in)
2014159.4 mm (6.3 in)
2015135.5 mm (5.3 in)
2016106.4 mm (4.2 in)
2017151.2 mm (6.0 in)
201895.3 mm (3.8 in)
2019102.4 mm (4.0 in)
2020107.0 mm (4.2 in)
202192.5 mm (3.6 in)
2022159.3 mm (6.3 in)
2023128.5 mm (5.1 in)
2024104.5 mm (4.1 in)
202575.0 mm (3.0 in)
202683.3 mm (3.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Robbinston by year The longest dry spell of the year at Robbinston, 1994 to 2026. The record is 21 days in 1997, marked on the chart; the median year is 14 days. 510152025200020102020Record: 21 days in 1997
The longest dry spell of the year at Robbinston, 1994 to 2026. The record is 21 days in 1997, marked on the chart; the median year is 14 days.
Longest dry spell (CDD) at Robbinston by year
YearLongest dry spell (CDD)
199410 days
199511 days
199612 days
199721 days
199813 days
199919 days
200012 days
200119 days
200214 days
200315 days
200413 days
200513 days
200611 days
200713 days
200814 days
200920 days
201021 days
201110 days
201212 days
201315 days
201413 days
201515 days
201615 days
201718 days
201819 days
20198 days
202017 days
202114 days
202217 days
202317 days
202413 days
202519 days
202615 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

31 years with a frost

Across 31 years with a frost, the median last spring frost at Robbinston falls on 10 May and the median first autumn frost on 10 October, which leaves a median of 156 days between them.

Fitted over all years, the growing season changes by +8.0 days per decade at this station.

Frost dates and growing season at Robbinston
MeasureMedian, all yearsEarliest periodRecent period (1996 to 2025)Recent against earliestFitted trend
Last spring frost10 Mayn/a10 Mayn/a-2.6 days per decade
First autumn frost10 Octobern/a11 Octobern/a+5.3 days per decade
Growing days156 daysn/a156 daysn/a+8.0 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

31 years, 1995 to 2025

A day with at least 74.2 mm (2.9 in) of rain is expected about once in 2 years. A day with at least 165.2 mm (6.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Robbinston: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years74.2 mm (2.9 in)
5 years98.1 mm (3.9 in)
10 years114.1 mm (4.5 in)
25 years134.5 mm (5.3 in)
50 years149.8 mm (5.9 in)Longer than the 31 years of record
100 years165.2 mm (6.5 in)Longer than the 31 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, 31 years of values from 1995 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: 169.2 mm (6.7 in) in 2010; 109.7 mm (4.3 in) in 1998; 109.0 mm (4.3 in) in 2015.

Download the Data

  • Data for Robbinston standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Robbinston 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-15).