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Mount Wellington Weather Records (ASN00094087)

Record envelope, standing records and threshold days for Mount Wellington (ASN00094087), Australia, with 66 years of record.

Key Facts for Mount Wellington

  • Mount Wellington (ASN00094087) is a weather station in Australia at -42.90 latitude and 147.24 longitude, 1,261 m (4,135 ft) above sea level.
  • The station reports from 1961 to 2026, 66 years of record.
  • 1,464 records set at Mount Wellington still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Mount Wellington set a daily record high minimum temperature of 6.9 C (44.4 F) on 30 September 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Australia, -42.90 latitude, 147.24 longitude.
  • Elevation: 1,261 m (4,135 ft).
  • Period of record: 1961 to 2026, 66 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

12 days at or beyond a record
Daily record high and record low at Mount Wellington, with 2026 drawn through them The band shows the record high and record low for each calendar day at Mount Wellington. The lines show the 2026 daily maximum and minimum. 12 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -100102030 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Mount Wellington. The lines show the 2026 daily maximum and minimum. 12 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Mount Wellington, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan29.8 C (85.6 F)-5.0 C (23.0 F)24.8 C (76.6 F)-1.0 C (30.2 F)
Feb29.6 C (85.3 F)-7.4 C (18.7 F)21.8 C (71.2 F)-1.0 C (30.2 F)
Mar28.4 C (83.1 F)-4.7 C (23.5 F)20.2 C (68.4 F)-1.4 C (29.5 F)
Apr24.7 C (76.5 F)-6.5 C (20.3 F)15.7 C (60.3 F)-3.0 C (26.6 F)
May17.3 C (63.1 F)-8.1 C (17.4 F)15.4 C (59.7 F)-3.4 C (25.9 F)
Jun13.3 C (55.9 F)-7.5 C (18.5 F)9.7 C (49.5 F)-2.9 C (26.8 F)
Jul12.7 C (54.9 F)-8.1 C (17.4 F)12.7 C (54.9 F)-4.7 C (23.5 F)
Aug13.4 C (56.1 F)-7.8 C (18.0 F)10.8 C (51.4 F)-2.8 C (27.0 F)
Sep19.5 C (67.1 F)-9.1 C (15.6 F)16.3 C (61.3 F)-4.7 C (23.5 F)
Oct22.8 C (73.0 F)-9.5 C (14.9 F)11.0 C (51.8 F)-0.1 C (31.8 F)
Nov26.2 C (79.2 F)-6.2 C (20.8 F)n/an/a
Dec28.6 C (83.5 F)-4.5 C (23.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Mount Wellington by the year they were set 1,464 records at Mount Wellington still stand. 1964 holds the most, with 49. 02040601961: 301962: 371963: 481964: 491965: 451966: 321967: 451968: 381969: 331970: 261971: 211972: 171990: 131991: 241992: 221993: 371994: 491995: 381996: 301997: 381998: 341999: 282000: 302001: 162002: 232003: 242004: 242005: 382006: 352007: 302008: 282009: 372010: 222011: 332012: 222013: 322014: 242015: 342016: 212017: 352018: 262019: 372020: 312021: 192022: 242023: 202024: 162025: 262026: 231961196619711993199820032008201320182023
1,464 records at Mount Wellington still stand. 1964 holds the most, with 49.
Standing records at Mount Wellington by the year they were set
Year setStanding records
196130
196237
196348
196449
196545
196632
196745
196838
196933
197026
197121
197217
199013
199124
199222
199337
199449
199538
199630
199738
199834
199928
200030
200116
200223
200324
200424
200538
200635
200730
200828
200937
201022
201133
201222
201332
201424
201534
201621
201735
201826
201937
202031
202119
202224
202320
202416
202526
202623

All-Time Record Progression

2 new records
When Mount Wellington set new all-time records 2 all-time records were set at Mount Wellington between 14 January 2014 and 23 June 2020. Each dot is a new record. Record high maximum temperatureRecord daily precipitation14 January 2014: Record high maximum temperature 29.8 C (85.6 F)23 June 2020: Record daily precipitation 175.4 mm (6.9 in)20152020
2 all-time records were set at Mount Wellington between 14 January 2014 and 23 June 2020. Each dot is a new record.
When Mount Wellington set new all-time records
DateKindDetail
2014-01-14Record high maximum temperatureRecord high maximum temperature 29.8 C (85.6 F)
2020-06-23Record daily precipitationRecord daily precipitation 175.4 mm (6.9 in)

Wettest Day of Each Month

Jun: 175.4 mm (6.9 in)
Record daily precipitation for each month at Mount Wellington The wettest day on record for each calendar month at Mount Wellington. The most was 175.4 mm (6.9 in) on 23 June 2020. 050100150200 Jan: 153.4 mm (6.0 in), 14 January 2015 Jan Feb: 159.0 mm (6.3 in), 10 February 1996 Feb Mar: 91.0 mm (3.6 in), 25 March 2021 Mar Apr: 88.0 mm (3.5 in), 18 April 1996 Apr May: 134.6 mm (5.3 in), 28 May 2026 May Jun: 175.4 mm (6.9 in), 23 June 2020 Jun Jul: 100.4 mm (4.0 in), 22 July 2013 Jul Aug: 108.8 mm (4.3 in), 14 August 2022 Aug Sep: 81.6 mm (3.2 in), 30 September 2016 Sep Oct: 77.4 mm (3.0 in), 27 October 2022 Oct Nov: 101.2 mm (4.0 in), 29 November 2009 Nov Dec: 79.0 mm (3.1 in), 20 December 1995 Dec
The wettest day on record for each calendar month at Mount Wellington. The most was 175.4 mm (6.9 in) on 23 June 2020.
Record daily precipitation for each month at Mount Wellington
MonthRecord daily precipitation (mm)Date
Jan153.4 mm (6.0 in)14 January 2015
Feb159.0 mm (6.3 in)10 February 1996
Mar91.0 mm (3.6 in)25 March 2021
Apr88.0 mm (3.5 in)18 April 1996
May134.6 mm (5.3 in)28 May 2026
Jun175.4 mm (6.9 in)23 June 2020
Jul100.4 mm (4.0 in)22 July 2013
Aug108.8 mm (4.3 in)14 August 2022
Sep81.6 mm (3.2 in)30 September 2016
Oct77.4 mm (3.0 in)27 October 2022
Nov101.2 mm (4.0 in)29 November 2009
Dec79.0 mm (3.1 in)20 December 1995

Period of Record Coverage

1961 to 2026
Days with data per year at Mount Wellington 49 years of record at Mount Wellington, 1961 to 2026. 8 years have data for under 90 percent of days and are left out of rankings: 1961, 1972, 1990, 1993, 1994, 1998, 2001, 2026. 1961: 304 of 365 days1962: 363 of 365 days1963: 364 of 365 days1964: 366 of 366 days1965: 362 of 365 days1966: 365 of 365 days1967: 364 of 365 days1968: 364 of 366 days1969: 365 of 365 days1970: 335 of 365 days1971: 361 of 365 days1972: 148 of 366 days1990: 176 of 365 days1991: 345 of 365 days1992: 352 of 366 days1993: 240 of 365 days1994: 230 of 365 days1995: 334 of 365 days1996: 353 of 366 days1997: 358 of 365 days1998: 322 of 365 days1999: 345 of 365 days2000: 346 of 366 days2001: 322 of 365 days2002: 341 of 365 days2003: 362 of 365 days2004: 356 of 366 days2005: 358 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 365 of 366 days2009: 357 of 365 days2010: 365 of 365 days2011: 364 of 365 days2012: 365 of 366 days2013: 364 of 365 days2014: 364 of 365 days2015: 363 of 365 days2016: 365 of 366 days2017: 364 of 365 days2018: 357 of 365 days2019: 360 of 365 days2020: 364 of 366 days2021: 360 of 365 days2022: 364 of 365 days2023: 359 of 365 days2024: 364 of 366 days2025: 363 of 365 days2026: 273 of 365 days19701990200020102020
49 years of record at Mount Wellington, 1961 to 2026. 8 years have data for under 90 percent of days and are left out of rankings: 1961, 1972, 1990, 1993, 1994, 1998, 2001, 2026.
Days with data per year at Mount Wellington
YearDays with dataShare of yearComplete
196130483%No
196236399%Yes
1963364100%Yes
1964366100%Yes
196536299%Yes
1966365100%Yes
1967364100%Yes
196836499%Yes
1969365100%Yes
197033592%Yes
197136199%Yes
197214840%No
199017648%No
199134595%Yes
199235296%Yes
199324066%No
199423063%No
199533492%Yes
199635396%Yes
199735898%Yes
199832288%No
199934595%Yes
200034695%Yes
200132288%No
200234193%Yes
200336299%Yes
200435697%Yes
200535898%Yes
2006365100%Yes
2007365100%Yes
2008365100%Yes
200935798%Yes
2010365100%Yes
2011364100%Yes
2012365100%Yes
2013364100%Yes
2014364100%Yes
201536399%Yes
2016365100%Yes
2017364100%Yes
201835798%Yes
201936099%Yes
202036499%Yes
202136099%Yes
2022364100%Yes
202335998%Yes
202436499%Yes
202536399%Yes
202627375%No

Latest Records

20
Latest records at Mount Wellington
DateStationRecordValueBeat old record byOld record stoodSignificance
30 September 2026Mount Wellington, AUdaily high min (Provisional)6.9 C (44.4 F)0.3 C (0.5 F)24 years14 of 100 (Routine)
25 September 2026Mount Wellington, AUdaily high min (Provisional)5.9 C (42.6 F)2.6 C (4.7 F)3 years15 of 100 (Routine)
25 September 2026Mount Wellington, AUdaily high max (Provisional)11.9 C (53.4 F)0.6 C (1.1 F)17 years12 of 100 (Routine)
24 September 2026Mount Wellington, AUdaily high max (Provisional)13.8 C (56.8 F)1.4 C (2.5 F)36 years19 of 100 (Routine)
13 September 2026Mount Wellington, AUdaily high min (Provisional)5.7 C (42.3 F)1.3 C (2.3 F)28 years18 of 100 (Routine)
21 July 2026Mount Wellington, AUdaily high min2.8 C (37.0 F)1.3 C (2.3 F)7 years14 of 100 (Routine)
20 July 2026Mount Wellington, AUmonthly high min5.2 C (41.4 F)0.8 C (1.4 F)60 years37 of 100 (Notable)
20 July 2026Mount Wellington, AUdaily high max8.1 C (46.6 F)0.9 C (1.6 F)23 years15 of 100 (Routine)
19 July 2026Mount Wellington, AUmonthly high max12.7 C (54.9 F)1.3 C (2.3 F)3 years21 of 100 (Routine)
17 July 2026Mount Wellington, AUdaily high min3.1 C (37.6 F)0.3 C (0.5 F)36 years17 of 100 (Routine)
16 July 2026Mount Wellington, AUdaily high max10.5 C (50.9 F)1.7 C (3.1 F)33 years22 of 100 (Routine)
4 July 2026Mount Wellington, AUdaily low max-1.5 C (29.3 F)0.7 C (1.3 F)61 years26 of 100 (Routine)
2 July 2026Mount Wellington, AUdaily high min (Tie)3.3 C (37.9 F)tie60 years6 of 100 (Routine)
18 June 2026Mount Wellington, AUdaily high min7.8 C (46.0 F)4.5 C (8.1 F)59 years40 of 100 (Notable)
18 June 2026Mount Wellington, AUdaily high max8.7 C (47.7 F)0.3 C (0.5 F)13 years11 of 100 (Routine)
4 June 2026Mount Wellington, AUdaily rain49.8 mm (2.0 in)13.8 mm (0.5 in)16 years22 of 100 (Routine)
3 June 2026Mount Wellington, AUdaily rain19.0 mm (0.7 in)11.6 mm (0.5 in)0 years15 of 100 (Routine)
28 May 2026Mount Wellington, AUmonthly rain134.6 mm (5.3 in)45.6 mm (1.8 in)23 years62 of 100 (Major)
27 May 2026Mount Wellington, AUdaily rain53.4 mm (2.1 in)42.7 mm (1.7 in)59 years63 of 100 (Major)
18 May 2026Mount Wellington, AUdaily rain20.4 mm (0.8 in)6.6 mm (0.26 in)23 years20 of 100 (Routine)

Climate Trend

39 complete years, 1962 to 2025
Annual mean temperature at Mount Wellington as warming stripes, 1962 to 2025 One stripe for each of 39 complete years at Mount Wellington, 1962 to 2025. Blue stripes are years cooler than the station's own mean of 4.7 C (40.5 F); red stripes are warmer. The coolest year was 1964, at 3.3 C (38.0 F), and the warmest was 2014, at 5.7 C (42.2 F). The strongest colour marks a difference of 1.5 C (2.7 F). 1962: 3.9 C, -0.9 C from the station mean1963: 4.2 C, -0.6 C from the station mean1964: 3.3 C, -1.4 C from the station mean1965: 3.9 C, -0.8 C from the station mean1966: 4.2 C, -0.6 C from the station mean1967: 4.5 C, -0.3 C from the station mean1968: 4.0 C, -0.8 C from the station mean1969: 4.4 C, -0.3 C from the station mean1971: 4.7 C, 0.0 C from the station mean1991: 4.9 C, +0.1 C from the station mean1992: 4.9 C, +0.1 C from the station mean1996: 3.5 C, -1.3 C from the station mean1997: 4.3 C, -0.5 C from the station mean1999: 5.3 C, +0.5 C from the station mean2000: 5.2 C, +0.4 C from the station mean2002: 4.8 C, +0.1 C from the station mean2003: 4.8 C, +0.1 C from the station mean2004: 4.1 C, -0.6 C from the station mean2005: 5.5 C, +0.8 C from the station mean2006: 4.5 C, -0.2 C from the station mean2007: 5.5 C, +0.7 C from the station mean2008: 4.6 C, -0.2 C from the station mean2009: 4.8 C, +0.1 C from the station mean2010: 5.0 C, +0.2 C from the station mean2011: 5.0 C, +0.2 C from the station mean2012: 5.0 C, +0.3 C from the station mean2013: 5.2 C, +0.5 C from the station mean2014: 5.7 C, +0.9 C from the station mean2015: 4.7 C, 0.0 C from the station mean2016: 5.2 C, +0.4 C from the station mean2017: 5.4 C, +0.7 C from the station mean2018: 5.3 C, +0.5 C from the station mean2019: 5.2 C, +0.5 C from the station mean2020: 4.8 C, +0.1 C from the station mean2021: 4.7 C, -0.1 C from the station mean2022: 4.9 C, +0.2 C from the station mean2023: 5.3 C, +0.5 C from the station mean2024: 5.3 C, +0.5 C from the station mean2025: 4.9 C, +0.1 C from the station mean1962197019801990200020102020
One stripe for each of 39 complete years at Mount Wellington, 1962 to 2025. Blue stripes are years cooler than the station's own mean of 4.7 C (40.5 F); red stripes are warmer. The coolest year was 1964, at 3.3 C (38.0 F), and the warmest was 2014, at 5.7 C (42.2 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Mount Wellington as warming stripes, 1962 to 2025
YearAnnual mean temperatureDifference from the station mean
19623.9 C-0.86 C
19634.2 C-0.60 C
19643.3 C-1.42 C
19653.9 C-0.82 C
19664.2 C-0.58 C
19674.5 C-0.30 C
19684.0 C-0.76 C
19694.4 C-0.31 C
19714.7 C-0.02 C
19914.9 C+0.10 C
19924.9 C+0.10 C
19963.5 C-1.29 C
19974.3 C-0.50 C
19995.3 C+0.51 C
20005.2 C+0.40 C
20024.8 C+0.09 C
20034.8 C+0.08 C
20044.1 C-0.62 C
20055.5 C+0.78 C
20064.5 C-0.23 C
20075.5 C+0.72 C
20084.6 C-0.19 C
20094.8 C+0.09 C
20105.0 C+0.24 C
20115.0 C+0.20 C
20125.0 C+0.25 C
20135.2 C+0.48 C
20145.7 C+0.90 C
20154.7 C-0.01 C
20165.2 C+0.43 C
20175.4 C+0.68 C
20185.3 C+0.54 C
20195.2 C+0.47 C
20204.8 C+0.05 C
20214.7 C-0.08 C
20224.9 C+0.19 C
20235.3 C+0.51 C
20245.3 C+0.50 C
20254.9 C+0.12 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1962 to 2025. In Fahrenheit: 0.3 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 39 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Mount Wellington
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.2 C (0.1 to 0.3) per decade0.3 F (0.2 to 0.5) per decade1962 to 202539Rise
Mean daily maximum0.2 C (0.2 to 0.3) per decade0.4 F (0.3 to 0.6) per decade1962 to 202539Rise
Mean daily minimum0.1 C (0.1 to 0.2) per decade0.3 F (0.1 to 0.4) per decade1962 to 202539Rise

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

1961 to 2026
Yearly extremes at Mount Wellington: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)29.8 C (85.6 F)201426.1 C (79.0 F)49
Coldest night (TNn)-9.5 C (14.9 F)1990-6.4 C (20.5 F)49
Wettest day (Rx1day)175.4 mm (6.9 in)202065.7 mm (2.6 in)48
Wettest five days (Rx5day)332.6 mm (13.1 in)2020103.2 mm (4.1 in)48
Longest dry spell (CDD)27 days200313 days48

Hottest day (TXx)

Hottest day (TXx) at Mount Wellington by year The hottest day of the year at Mount Wellington, 1961 to 2026. The record is 29.8 C (85.6 F) in 2014, marked on the chart; the median year is 26.1 C (79.0 F). 2022.52527.530198020002020Record: 29.8 C (85.6 F) in 2014
The hottest day of the year at Mount Wellington, 1961 to 2026. The record is 29.8 C (85.6 F) in 2014, marked on the chart; the median year is 26.1 C (79.0 F).
Hottest day (TXx) at Mount Wellington by year
YearHottest day (TXx)
196123.6 C (74.5 F)
196226.7 C (80.1 F)
196323.2 C (73.8 F)
196422.8 C (73.0 F)
196525.7 C (78.3 F)
196626.2 C (79.2 F)
196728.3 C (82.9 F)
196826.8 C (80.2 F)
196925.0 C (77.0 F)
197021.8 C (71.2 F)
197125.0 C (77.0 F)
197221.6 C (70.9 F)
199025.7 C (78.3 F)
199126.4 C (79.5 F)
199228.4 C (83.1 F)
199326.6 C (79.9 F)
199420.6 C (69.1 F)
199529.6 C (85.3 F)
199620.5 C (68.9 F)
199726.5 C (79.7 F)
199827.5 C (81.5 F)
199923.6 C (74.5 F)
200025.4 C (77.7 F)
200125.9 C (78.6 F)
200222.5 C (72.5 F)
200328.2 C (82.8 F)
200424.8 C (76.6 F)
200527.8 C (82.0 F)
200629.2 C (84.6 F)
200726.3 C (79.3 F)
200826.7 C (80.1 F)
200927.7 C (81.9 F)
201027.9 C (82.2 F)
201123.1 C (73.6 F)
201228.3 C (82.9 F)
201329.5 C (85.1 F)
201429.8 C (85.6 F)
201526.8 C (80.2 F)
201624.8 C (76.6 F)
201724.7 C (76.5 F)
201828.7 C (83.7 F)
201928.6 C (83.5 F)
202029.8 C (85.6 F)
202126.1 C (79.0 F)
202225.0 C (77.0 F)
202325.4 C (77.7 F)
202424.6 C (76.3 F)
202524.4 C (75.9 F)
202624.8 C (76.6 F)

Coldest night (TNn)

Coldest night (TNn) at Mount Wellington by year The coldest night of the year at Mount Wellington, 1961 to 2026. The record is -9.5 C (14.9 F) in 1990, marked on the chart; the median year is -6.4 C (20.5 F). -10-8-6-4-2198020002020Record: -9.5 C (14.9 F) in 1990
The coldest night of the year at Mount Wellington, 1961 to 2026. The record is -9.5 C (14.9 F) in 1990, marked on the chart; the median year is -6.4 C (20.5 F).
Coldest night (TNn) at Mount Wellington by year
YearColdest night (TNn)
1961-7.2 C (19.0 F)
1962-6.7 C (19.9 F)
1963-6.4 C (20.5 F)
1964-7.8 C (18.0 F)
1965-8.1 C (17.4 F)
1966-8.1 C (17.4 F)
1967-6.6 C (20.1 F)
1968-6.8 C (19.8 F)
1969-7.2 C (19.0 F)
1970-7.2 C (19.0 F)
1971-6.7 C (19.9 F)
1972-3.3 C (26.1 F)
1990-9.5 C (14.9 F)
1991-6.7 C (19.9 F)
1992-6.5 C (20.3 F)
1993-9.1 C (15.6 F)
1994-8.3 C (17.1 F)
1995-6.4 C (20.5 F)
1996-6.3 C (20.7 F)
1997-7.3 C (18.9 F)
1998-5.6 C (21.9 F)
1999-5.3 C (22.5 F)
2000-5.3 C (22.5 F)
2001-5.1 C (22.8 F)
2002-5.6 C (21.9 F)
2003-6.1 C (21.0 F)
2004-6.3 C (20.7 F)
2005-7.4 C (18.7 F)
2006-6.4 C (20.5 F)
2007-5.6 C (21.9 F)
2008-7.5 C (18.5 F)
2009-6.2 C (20.8 F)
2010-6.1 C (21.0 F)
2011-6.0 C (21.2 F)
2012-5.5 C (22.1 F)
2013-7.3 C (18.9 F)
2014-5.8 C (21.6 F)
2015-7.5 C (18.5 F)
2016-6.5 C (20.3 F)
2017-6.4 C (20.5 F)
2018-5.7 C (21.7 F)
2019-5.2 C (22.6 F)
2020-7.2 C (19.0 F)
2021-6.3 C (20.7 F)
2022-6.5 C (20.3 F)
2023-5.0 C (23.0 F)
2024-5.1 C (22.8 F)
2025-5.2 C (22.6 F)
2026-4.7 C (23.5 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Mount Wellington by year The wettest day of the year at Mount Wellington, 1961 to 2026. The record is 175.4 mm (6.9 in) in 2020, marked on the chart; the median year is 65.7 mm (2.6 in). 050100150200198020002020Record: 175.4 mm (6.9 in) in 2020
The wettest day of the year at Mount Wellington, 1961 to 2026. The record is 175.4 mm (6.9 in) in 2020, marked on the chart; the median year is 65.7 mm (2.6 in).
Wettest day (Rx1day) at Mount Wellington by year
YearWettest day (Rx1day)
196134.0 mm (1.3 in)
196231.2 mm (1.2 in)
196315.5 mm (0.6 in)
196426.2 mm (1.0 in)
196558.4 mm (2.3 in)
196642.4 mm (1.7 in)
196741.9 mm (1.6 in)
196826.2 mm (1.0 in)
196947.5 mm (1.9 in)
197054.1 mm (2.1 in)
197141.1 mm (1.6 in)
197218.0 mm (0.7 in)
199078.0 mm (3.1 in)
199198.6 mm (3.9 in)
199234.6 mm (1.4 in)
1993n/a
199427.0 mm (1.1 in)
199579.0 mm (3.1 in)
1996159.0 mm (6.3 in)
199797.0 mm (3.8 in)
199871.0 mm (2.8 in)
199953.0 mm (2.1 in)
200060.0 mm (2.4 in)
200181.0 mm (3.2 in)
200241.0 mm (1.6 in)
200389.0 mm (3.5 in)
2004128.2 mm (5.0 in)
200589.8 mm (3.5 in)
200671.6 mm (2.8 in)
200766.4 mm (2.6 in)
200862.4 mm (2.5 in)
2009114.2 mm (4.5 in)
201044.8 mm (1.8 in)
201184.8 mm (3.3 in)
201279.6 mm (3.1 in)
2013100.4 mm (4.0 in)
201465.0 mm (2.6 in)
2015153.4 mm (6.0 in)
201686.8 mm (3.4 in)
201756.6 mm (2.2 in)
201838.2 mm (1.5 in)
201943.0 mm (1.7 in)
2020175.4 mm (6.9 in)
202191.0 mm (3.6 in)
2022108.8 mm (4.3 in)
202340.8 mm (1.6 in)
202478.6 mm (3.1 in)
202571.8 mm (2.8 in)
2026134.6 mm (5.3 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Mount Wellington by year The wettest five days of the year at Mount Wellington, 1961 to 2026. The record is 332.6 mm (13.1 in) in 2020, marked on the chart; the median year is 103.2 mm (4.1 in). 0100200300400198020002020Record: 332.6 mm (13.1 in) in 2020
The wettest five days of the year at Mount Wellington, 1961 to 2026. The record is 332.6 mm (13.1 in) in 2020, marked on the chart; the median year is 103.2 mm (4.1 in).
Wettest five days (Rx5day) at Mount Wellington by year
YearWettest five days (Rx5day)
196159.1 mm (2.3 in)
196292.1 mm (3.6 in)
196335.8 mm (1.4 in)
196467.6 mm (2.7 in)
196567.1 mm (2.6 in)
196693.0 mm (3.7 in)
196760.4 mm (2.4 in)
196833.1 mm (1.3 in)
196987.5 mm (3.4 in)
1970107.0 mm (4.2 in)
1971102.3 mm (4.0 in)
197231.5 mm (1.2 in)
1990104.0 mm (4.1 in)
1991154.0 mm (6.1 in)
199297.2 mm (3.8 in)
1993n/a
199467.2 mm (2.6 in)
1995114.0 mm (4.5 in)
1996303.0 mm (11.9 in)
1997130.0 mm (5.1 in)
199890.8 mm (3.6 in)
199982.0 mm (3.2 in)
200093.0 mm (3.7 in)
2001120.6 mm (4.7 in)
200265.8 mm (2.6 in)
2003123.8 mm (4.9 in)
2004311.2 mm (12.3 in)
2005140.2 mm (5.5 in)
200685.2 mm (3.4 in)
2007117.4 mm (4.6 in)
200890.6 mm (3.6 in)
2009207.4 mm (8.2 in)
201072.0 mm (2.8 in)
2011219.4 mm (8.6 in)
2012115.6 mm (4.6 in)
2013153.6 mm (6.0 in)
201488.8 mm (3.5 in)
2015197.8 mm (7.8 in)
2016209.2 mm (8.2 in)
2017134.4 mm (5.3 in)
2018110.2 mm (4.3 in)
201957.0 mm (2.2 in)
2020332.6 mm (13.1 in)
2021166.8 mm (6.6 in)
2022174.6 mm (6.9 in)
202390.4 mm (3.6 in)
2024124.4 mm (4.9 in)
202588.6 mm (3.5 in)
2026260.0 mm (10.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Mount Wellington by year The longest dry spell of the year at Mount Wellington, 1961 to 2026. The record is 27 days in 2003, marked on the chart; the median year is 13 days. 0102030198020002020Record: 27 days in 2003
The longest dry spell of the year at Mount Wellington, 1961 to 2026. The record is 27 days in 2003, marked on the chart; the median year is 13 days.
Longest dry spell (CDD) at Mount Wellington by year
YearLongest dry spell (CDD)
196114 days
196213 days
196319 days
196412 days
196518 days
196613 days
196720 days
196814 days
196914 days
197022 days
197112 days
197213 days
19907 days
199113 days
19929 days
1993n/a
19943 days
19959 days
199611 days
199710 days
199819 days
199916 days
200013 days
200112 days
200211 days
200327 days
200415 days
200517 days
200611 days
200721 days
200819 days
200912 days
201015 days
201114 days
201211 days
201317 days
20149 days
201514 days
201610 days
201713 days
201814 days
201914 days
202011 days
202112 days
202214 days
202313 days
202410 days
202520 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

39 years with a frost

Across 39 years with a frost, the median last spring frost at Mount Wellington falls on 27 December and the median first autumn frost on 14 January, which leaves a median of 20 days between them.

Fitted over all years, the growing season changes by +3.6 days per decade at this station.

Frost dates and growing season at Mount Wellington
MeasureMedian, all yearsEarliest periodRecent period (1991 to 2025)Recent against earliestFitted trend
Last spring frost27 Decembern/a27 Decembern/a-1.1 days per decade
First autumn frost14 Januaryn/a17 Januaryn/a+2.5 days per decade
Growing days20 daysn/a28 daysn/a+3.6 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

39 years, 1962 to 2025

A day with at least 64.2 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 203.3 mm (8.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Mount Wellington: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years64.2 mm (2.5 in)
5 years97.4 mm (3.8 in)
10 years120.9 mm (4.8 in)
25 years152.5 mm (6.0 in)
50 years177.3 mm (7.0 in)Longer than the 39 years of record
100 years203.3 mm (8.0 in)Longer than the 39 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, 39 years of values from 1962 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: 175.4 mm (6.9 in) in 2020; 159.0 mm (6.3 in) in 1996; 153.4 mm (6.0 in) in 2015.

Download the Data

  • Data for Mount Wellington standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Mount Wellington 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-13).