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Built 2026-10-15 (15 October 2026)

Portland Aero Weather Records (ASN00090162)

Record envelope, standing records and threshold days for Portland Aero (ASN00090162), Australia, with 54 years of record.

Key Facts for Portland Aero

  • Portland Aero (ASN00090162) is a weather station in Australia at -38.38 latitude and 141.63 longitude, 38 m (125 ft) above sea level.
  • The station reports from 1973 to 2026, 54 years of record.
  • 1,464 records set at Portland Aero still stand.
  • Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

  • Location: Australia, -38.38 latitude, 141.63 longitude.
  • Elevation: 38 m (125 ft).
  • Period of record: 1973 to 2026, 54 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

34 days at or beyond a record
Daily record high and record low at Portland Aero, with 2026 drawn through them The band shows the record high and record low for each calendar day at Portland Aero. The lines show the 2026 daily maximum and minimum. 34 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -10010203040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Portland Aero. The lines show the 2026 daily maximum and minimum. 34 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Portland Aero, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan36.0 C (96.8 F)5.5 C (41.9 F)36.0 C (96.8 F)12.7 C (54.9 F)
Feb34.5 C (94.1 F)4.9 C (40.8 F)31.8 C (89.2 F)10.9 C (51.6 F)
Mar33.5 C (92.3 F)5.0 C (41.0 F)25.9 C (78.6 F)11.7 C (53.1 F)
Apr31.7 C (89.1 F)3.9 C (39.0 F)24.7 C (76.5 F)7.3 C (45.1 F)
May25.7 C (78.3 F)1.5 C (34.7 F)25.6 C (78.1 F)5.0 C (41.0 F)
Jun19.0 C (66.2 F)-0.2 C (31.6 F)19.0 C (66.2 F)4.4 C (39.9 F)
Jul21.0 C (69.8 F)0.5 C (32.9 F)16.7 C (62.1 F)3.2 C (37.8 F)
Aug22.8 C (73.0 F)1.0 C (33.8 F)17.1 C (62.8 F)5.6 C (42.1 F)
Sep27.8 C (82.0 F)2.0 C (35.6 F)24.0 C (75.2 F)3.9 C (39.0 F)
Oct32.0 C (89.6 F)3.0 C (37.4 F)21.1 C (70.0 F)9.1 C (48.4 F)
Nov31.3 C (88.3 F)2.0 C (35.6 F)n/an/a
Dec35.5 C (95.9 F)3.5 C (38.3 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Portland Aero by the year they were set 1,464 records at Portland Aero still stand. 2025 holds the most, with 215. 01002003001973: 331974: 1261975: 1401976: 1091977: 1281978: 1601979: 1141980: 1541981: 1021982: 572025: 2152026: 126197319751977197919812025
1,464 records at Portland Aero still stand. 2025 holds the most, with 215.
Standing records at Portland Aero by the year they were set
Year setStanding records
197333
1974126
1975140
1976109
1977128
1978160
1979114
1980154
1981102
198257
2025215
2026126

Wettest Day of Each Month

Nov: 81.0 mm (3.2 in)
Record daily precipitation for each month at Portland Aero The wettest day on record for each calendar month at Portland Aero. The most was 81.0 mm (3.2 in) on 29 November 1977. 0255075100 Jan: 29.6 mm (1.2 in), 17 January 1977 Jan Feb: 31.4 mm (1.2 in), 29 February 1976 Feb Mar: 30.0 mm (1.2 in), 28 March 1982 Mar Apr: 36.4 mm (1.4 in), 11 April 1978 Apr May: 54.8 mm (2.2 in), 25 May 1975 May Jun: 29.0 mm (1.1 in), 24 June 1981 Jun Jul: 38.4 mm (1.5 in), 20 July 1975 Jul Aug: 31.6 mm (1.2 in), 17 August 1981 Aug Sep: 30.4 mm (1.2 in), 29 September 1979 Sep Oct: 57.4 mm (2.3 in), 16 October 1976 Oct Nov: 81.0 mm (3.2 in), 29 November 1977 Nov Dec: 37.5 mm (1.5 in), 16 December 1980 Dec
The wettest day on record for each calendar month at Portland Aero. The most was 81.0 mm (3.2 in) on 29 November 1977.
Record daily precipitation for each month at Portland Aero
MonthRecord daily precipitation (mm)Date
Jan29.6 mm (1.2 in)17 January 1977
Feb31.4 mm (1.2 in)29 February 1976
Mar30.0 mm (1.2 in)28 March 1982
Apr36.4 mm (1.4 in)11 April 1978
May54.8 mm (2.2 in)25 May 1975
Jun29.0 mm (1.1 in)24 June 1981
Jul38.4 mm (1.5 in)20 July 1975
Aug31.6 mm (1.2 in)17 August 1981
Sep30.4 mm (1.2 in)29 September 1979
Oct57.4 mm (2.3 in)16 October 1976
Nov81.0 mm (3.2 in)29 November 1977
Dec37.5 mm (1.5 in)16 December 1980

Period of Record Coverage

1973 to 2026
Days with data per year at Portland Aero 12 years of record at Portland Aero, 1973 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1973, 1982, 2026. 1973: 92 of 365 days1974: 361 of 365 days1975: 358 of 365 days1976: 357 of 366 days1977: 354 of 365 days1978: 355 of 365 days1979: 353 of 365 days1980: 347 of 366 days1981: 349 of 365 days1982: 147 of 365 days2025: 358 of 365 days2026: 275 of 365 days197519802025
12 years of record at Portland Aero, 1973 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1973, 1982, 2026.
Days with data per year at Portland Aero
YearDays with dataShare of yearComplete
19739225%No
197436199%Yes
197535898%Yes
197635798%Yes
197735497%Yes
197835597%Yes
197935397%Yes
198034795%Yes
198134996%Yes
198214740%No
202535898%Yes
202627575%No

Latest Records

0

No records were set at this station in the latest data.

Extremes by Year

1973 to 2026
Yearly extremes at Portland Aero: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)36.0 C (96.8 F)202634.9 C (94.8 F)12
Coldest night (TNn)-0.2 C (31.6 F)19821.2 C (34.1 F)12
Wettest day (Rx1day)81.0 mm (3.2 in)197737.5 mm (1.5 in)10
Wettest five days (Rx5day)107.2 mm (4.2 in)197466.7 mm (2.6 in)10
Longest dry spell (CDD)24 days197417 days10

Hottest day (TXx)

Hottest day (TXx) at Portland Aero by year The hottest day of the year at Portland Aero, 1973 to 2026. The record is 36.0 C (96.8 F) in 2026, marked on the chart; the median year is 34.9 C (94.8 F). 3032343619801990200020102020Record: 36.0 C (96.8 F) in 2026
The hottest day of the year at Portland Aero, 1973 to 2026. The record is 36.0 C (96.8 F) in 2026, marked on the chart; the median year is 34.9 C (94.8 F).
Hottest day (TXx) at Portland Aero by year
YearHottest day (TXx)
197330.8 C (87.4 F)
197434.8 C (94.6 F)
197535.2 C (95.4 F)
197635.5 C (95.9 F)
197735.0 C (95.0 F)
197833.5 C (92.3 F)
197935.8 C (96.4 F)
198034.5 C (94.1 F)
198134.6 C (94.3 F)
198235.2 C (95.4 F)
202533.8 C (92.8 F)
202636.0 C (96.8 F)

Coldest night (TNn)

Coldest night (TNn) at Portland Aero by year The coldest night of the year at Portland Aero, 1973 to 2026. The record is -0.2 C (31.6 F) in 1982, marked on the chart; the median year is 1.2 C (34.1 F). -2024619801990200020102020Record: -0.2 C (31.6 F) in 1982
The coldest night of the year at Portland Aero, 1973 to 2026. The record is -0.2 C (31.6 F) in 1982, marked on the chart; the median year is 1.2 C (34.1 F).
Coldest night (TNn) at Portland Aero by year
YearColdest night (TNn)
19735.5 C (41.9 F)
19741.0 C (33.8 F)
19750.5 C (32.9 F)
19761.0 C (33.8 F)
19772.0 C (35.6 F)
19781.6 C (34.9 F)
19791.0 C (33.8 F)
19801.3 C (34.3 F)
19811.0 C (33.8 F)
1982-0.2 C (31.6 F)
20253.0 C (37.4 F)
20263.2 C (37.8 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Portland Aero by year The wettest day of the year at Portland Aero, 1973 to 2026. The record is 81.0 mm (3.2 in) in 1977, marked on the chart; the median year is 37.5 mm (1.5 in). 2040608010019801990200020102020Record: 81.0 mm (3.2 in) in 1977
The wettest day of the year at Portland Aero, 1973 to 2026. The record is 81.0 mm (3.2 in) in 1977, marked on the chart; the median year is 37.5 mm (1.5 in).
Wettest day (Rx1day) at Portland Aero by year
YearWettest day (Rx1day)
197343.4 mm (1.7 in)
197437.4 mm (1.5 in)
197554.8 mm (2.2 in)
197657.4 mm (2.3 in)
197781.0 mm (3.2 in)
197836.4 mm (1.4 in)
197930.4 mm (1.2 in)
198037.5 mm (1.5 in)
198131.6 mm (1.2 in)
198230.0 mm (1.2 in)
2025n/a
2026n/a

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Portland Aero by year The wettest five days of the year at Portland Aero, 1973 to 2026. The record is 107.2 mm (4.2 in) in 1974, marked on the chart; the median year is 66.7 mm (2.6 in). 40608010012019801990200020102020Record: 107.2 mm (4.2 in) in 1974
The wettest five days of the year at Portland Aero, 1973 to 2026. The record is 107.2 mm (4.2 in) in 1974, marked on the chart; the median year is 66.7 mm (2.6 in).
Wettest five days (Rx5day) at Portland Aero by year
YearWettest five days (Rx5day)
197362.9 mm (2.5 in)
1974107.2 mm (4.2 in)
197567.2 mm (2.6 in)
197667.6 mm (2.7 in)
197790.4 mm (3.6 in)
197862.8 mm (2.5 in)
197966.2 mm (2.6 in)
198049.9 mm (2.0 in)
198186.0 mm (3.4 in)
198248.8 mm (1.9 in)
2025n/a
2026n/a

Longest dry spell (CDD)

Longest dry spell (CDD) at Portland Aero by year The longest dry spell of the year at Portland Aero, 1973 to 2026. The record is 24 days in 1974, marked on the chart; the median year is 17 days. 1015202519801990200020102020Record: 24 days in 1974
The longest dry spell of the year at Portland Aero, 1973 to 2026. The record is 24 days in 1974, marked on the chart; the median year is 17 days.
Longest dry spell (CDD) at Portland Aero by year
YearLongest dry spell (CDD)
197310 days
197424 days
197517 days
197616 days
197720 days
197822 days
197914 days
198019 days
198112 days
198211 days
2025n/a
2026n/a

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.

Download the Data

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