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Mount Isa Aero Weather Records (ASN00029127)

Record envelope, standing records and threshold days for Mount Isa Aero (ASN00029127), Australia, with 61 years of record.

Key Facts for Mount Isa Aero

  • Mount Isa Aero (ASN00029127) is a weather station in Australia at -20.68 latitude and 139.49 longitude, 340 m (1,116 ft) above sea level.
  • The station reports from 1966 to 2026, 61 years of record.
  • 1,464 records set at Mount Isa Aero still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Mount Isa Aero set a daily record precipitation of 6.6 mm (0.26 in) on 26 August 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Australia, -20.68 latitude, 139.49 longitude.
  • Elevation: 340 m (1,116 ft).
  • Period of record: 1966 to 2026, 61 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

6 days at or beyond a record
Daily record high and record low at Mount Isa Aero, with 2026 drawn through them The band shows the record high and record low for each calendar day at Mount Isa Aero. The lines show the 2026 daily maximum and minimum. 6 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -1001020304050 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Mount Isa Aero. The lines show the 2026 daily maximum and minimum. 6 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Mount Isa Aero, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan45.9 C (114.6 F)15.4 C (59.7 F)41.0 C (105.8 F)19.8 C (67.6 F)
Feb43.5 C (110.3 F)13.1 C (55.6 F)37.9 C (100.2 F)21.1 C (70.0 F)
Mar43.1 C (109.6 F)11.9 C (53.4 F)35.3 C (95.5 F)11.9 C (53.4 F)
Apr38.6 C (101.5 F)5.8 C (42.4 F)34.9 C (94.8 F)8.7 C (47.7 F)
May37.8 C (100.0 F)1.8 C (35.2 F)33.5 C (92.3 F)3.2 C (37.8 F)
Jun34.3 C (93.7 F)-1.3 C (29.7 F)31.2 C (88.2 F)0.9 C (33.6 F)
Jul35.2 C (95.4 F)-2.9 C (26.8 F)30.7 C (87.3 F)1.4 C (34.5 F)
Aug37.6 C (99.7 F)-1.1 C (30.0 F)33.7 C (92.7 F)4.9 C (40.8 F)
Sep40.4 C (104.7 F)1.0 C (33.8 F)36.4 C (97.5 F)7.9 C (46.2 F)
Oct42.5 C (108.5 F)6.1 C (43.0 F)35.3 C (95.5 F)14.0 C (57.2 F)
Nov43.9 C (111.0 F)10.1 C (50.2 F)n/an/a
Dec45.4 C (113.7 F)12.0 C (53.6 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Mount Isa Aero by the year they were set 1,464 records at Mount Isa Aero still stand. 2025 holds the most, with 58. 02040601966: 21967: 71968: 231969: 341970: 231971: 211972: 131973: 311974: 221975: 241976: 181977: 141978: 251979: 221980: 171981: 231982: 231983: 221984: 351985: 181986: 231987: 231988: 211989: 241990: 421991: 141992: 151993: 51994: 161995: 251996: 301997: 161998: 161999: 172000: 322001: 242002: 312003: 262004: 172005: 212006: 212007: 222008: 172009: 332010: 252011: 222012: 372013: 282014: 292015: 322016: 392017: 282018: 362019: 332020: 222021: 272022: 262023: 342024: 312025: 582026: 9196619731980198719942001200820152022
1,464 records at Mount Isa Aero still stand. 2025 holds the most, with 58.
Standing records at Mount Isa Aero by the year they were set
Year setStanding records
19662
19677
196823
196934
197023
197121
197213
197331
197422
197524
197618
197714
197825
197922
198017
198123
198223
198322
198435
198518
198623
198723
198821
198924
199042
199114
199215
19935
199416
199525
199630
199716
199816
199917
200032
200124
200231
200326
200417
200521
200621
200722
200817
200933
201025
201122
201237
201328
201429
201532
201639
201728
201836
201933
202022
202127
202226
202334
202431
202558
20269

All-Time Record Progression

2 new records
When Mount Isa Aero set new all-time records 2 all-time records were set at Mount Isa Aero between 15 January 2004 and 20 June 2007. Each dot is a new record. Record daily precipitationRecord low maximum temperature15 January 2004: Record daily precipitation 213.0 mm (8.4 in)20 June 2007: Record low maximum temperature 9.4 C (48.9 F)2005
2 all-time records were set at Mount Isa Aero between 15 January 2004 and 20 June 2007. Each dot is a new record.
When Mount Isa Aero set new all-time records
DateKindDetail
2004-01-15Record daily precipitationRecord daily precipitation 213.0 mm (8.4 in)
2007-06-20Record low maximum temperatureRecord low maximum temperature 9.4 C (48.9 F)

Wettest Day of Each Month

Jan: 213.0 mm (8.4 in)
Record daily precipitation for each month at Mount Isa Aero The wettest day on record for each calendar month at Mount Isa Aero. The most was 213.0 mm (8.4 in) on 15 January 2004. 0100200300 Jan: 213.0 mm (8.4 in), 15 January 2004 Jan Feb: 123.2 mm (4.9 in), 2 February 2019 Feb Mar: 130.0 mm (5.1 in), 6 March 1967 Mar Apr: 44.6 mm (1.8 in), 6 April 2006 Apr May: 106.4 mm (4.2 in), 12 May 1968 May Jun: 54.8 mm (2.2 in), 18 June 2007 Jun Jul: 78.4 mm (3.1 in), 3 July 2023 Jul Aug: 26.6 mm (1.0 in), 25 August 1974 Aug Sep: 40.2 mm (1.6 in), 24 September 1998 Sep Oct: 39.2 mm (1.5 in), 8 October 2017 Oct Nov: 102.4 mm (4.0 in), 4 November 2011 Nov Dec: 115.0 mm (4.5 in), 22 December 2020 Dec
The wettest day on record for each calendar month at Mount Isa Aero. The most was 213.0 mm (8.4 in) on 15 January 2004.
Record daily precipitation for each month at Mount Isa Aero
MonthRecord daily precipitation (mm)Date
Jan213.0 mm (8.4 in)15 January 2004
Feb123.2 mm (4.9 in)2 February 2019
Mar130.0 mm (5.1 in)6 March 1967
Apr44.6 mm (1.8 in)6 April 2006
May106.4 mm (4.2 in)12 May 1968
Jun54.8 mm (2.2 in)18 June 2007
Jul78.4 mm (3.1 in)3 July 2023
Aug26.6 mm (1.0 in)25 August 1974
Sep40.2 mm (1.6 in)24 September 1998
Oct39.2 mm (1.5 in)8 October 2017
Nov102.4 mm (4.0 in)4 November 2011
Dec115.0 mm (4.5 in)22 December 2020

Period of Record Coverage

1966 to 2026
Days with data per year at Mount Isa Aero 61 years of record at Mount Isa Aero, 1966 to 2026. 5 years have data for under 90 percent of days and are left out of rankings: 1966, 1967, 1968, 1971, 2026. 1966: 26 of 365 days1967: 286 of 365 days1968: 319 of 366 days1969: 337 of 365 days1970: 337 of 365 days1971: 323 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 364 of 365 days1982: 364 of 365 days1983: 364 of 365 days1984: 365 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 365 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 365 of 365 days1994: 364 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 364 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 363 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 365 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: 363 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 364 of 366 days2017: 354 of 365 days2018: 364 of 365 days2019: 362 of 365 days2020: 364 of 366 days2021: 363 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 274 of 365 days197019801990200020102020
61 years of record at Mount Isa Aero, 1966 to 2026. 5 years have data for under 90 percent of days and are left out of rankings: 1966, 1967, 1968, 1971, 2026.
Days with data per year at Mount Isa Aero
YearDays with dataShare of yearComplete
1966267%No
196728678%No
196831987%No
196933792%Yes
197033792%Yes
197132388%No
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981364100%Yes
1982364100%Yes
1983364100%Yes
1984365100%Yes
1985365100%Yes
1986365100%Yes
1987365100%Yes
1988366100%Yes
1989365100%Yes
1990365100%Yes
1991365100%Yes
1992366100%Yes
1993365100%Yes
1994364100%Yes
1995365100%Yes
1996366100%Yes
1997365100%Yes
1998365100%Yes
1999364100%Yes
2000366100%Yes
2001365100%Yes
2002365100%Yes
200336399%Yes
2004366100%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
201336399%Yes
2014365100%Yes
2015365100%Yes
201636499%Yes
201735497%Yes
2018364100%Yes
201936299%Yes
202036499%Yes
202136399%Yes
2022365100%Yes
2023365100%Yes
2024366100%Yes
2025365100%Yes
202627475%No

Latest Records

20
Latest records at Mount Isa Aero
DateStationRecordValueBeat old record byOld record stoodSignificance
26 August 2026Mount Isa Aero, AUdaily rain (Provisional)6.6 mm (0.26 in)0.4 mm (0.02 in)45 years19 of 100 (Routine)
23 July 2026Mount Isa Aero, AUdaily high min17.7 C (63.9 F)1.2 C (2.2 F)41 years20 of 100 (Routine)
3 July 2026Mount Isa Aero, AUdaily high min17.8 C (64.0 F)2.2 C (4.0 F)8 years13 of 100 (Routine)
2 July 2026Mount Isa Aero, AUdaily high max30.7 C (87.3 F)0.9 C (1.6 F)5 years9 of 100 (Routine)
19 June 2026Mount Isa Aero, AUdaily low max14.2 C (57.6 F)2.9 C (5.2 F)19 years19 of 100 (Routine)
7 June 2026Mount Isa Aero, AUdaily low min0.9 C (33.6 F)0.8 C (1.4 F)56 years25 of 100 (Routine)
30 May 2026Mount Isa Aero, AUdaily low min3.2 C (37.8 F)0.8 C (1.4 F)24 years14 of 100 (Routine)
26 April 2026Mount Isa Aero, AUdaily low min9.1 C (48.4 F)0.7 C (1.3 F)0 years8 of 100 (Routine)
18 April 2026Mount Isa Aero, AUdaily rain34.2 mm (1.3 in)33.4 mm (1.3 in)36 years47 of 100 (Notable)
17 April 2026Mount Isa Aero, AUdaily rain8.4 mm (0.33 in)8.0 mm (0.31 in)36 years20 of 100 (Routine)
30 March 2026Mount Isa Aero, AUmonthly low min11.9 C (53.4 F)0.5 C (0.9 F)0 years17 of 100 (Routine)
29 March 2026Mount Isa Aero, AUmonthly low min12.4 C (54.3 F)0.7 C (1.3 F)47 years32 of 100 (Routine)
18 March 2026Mount Isa Aero, AUdaily rain28.4 mm (1.1 in)1.2 mm (0.05 in)55 years22 of 100 (Routine)
23 February 2026Mount Isa Aero, AUdaily rain28.8 mm (1.1 in)19.2 mm (0.8 in)48 years31 of 100 (Routine)
21 February 2026Mount Isa Aero, AUdaily rain58.4 mm (2.3 in)14.8 mm (0.6 in)48 years29 of 100 (Routine)
26 December 2025Mount Isa Aero, AUdaily rain34.6 mm (1.4 in)17.0 mm (0.7 in)27 years25 of 100 (Routine)
7 December 2025Mount Isa Aero, AUdaily high max42.7 C (108.9 F)0.2 C (0.4 F)3 years6 of 100 (Routine)
23 November 2025Mount Isa Aero, AUdaily high max42.3 C (108.1 F)0.4 C (0.7 F)38 years18 of 100 (Routine)
22 November 2025Mount Isa Aero, AUdaily high max42.4 C (108.3 F)0.1 C (0.2 F)56 years23 of 100 (Routine)
20 November 2025Mount Isa Aero, AUdaily low min14.3 C (57.7 F)0.4 C (0.7 F)44 years20 of 100 (Routine)

Climate Trend

58 complete years, 1967 to 2025
Annual mean temperature at Mount Isa Aero as warming stripes, 1967 to 2025 One stripe for each of 58 complete years at Mount Isa Aero, 1967 to 2025. Blue stripes are years cooler than the station's own mean of 24.7 C (76.4 F); red stripes are warmer. The coolest year was 2011, at 23.1 C (73.6 F), and the warmest was 1988, at 26.1 C (78.9 F). The strongest colour marks a difference of 1.6 C (2.9 F). 1967: 24.4 C, -0.3 C from the station mean1968: 24.7 C, 0.0 C from the station mean1969: 25.0 C, +0.3 C from the station mean1970: 25.2 C, +0.5 C from the station mean1972: 24.9 C, +0.2 C from the station mean1973: 25.5 C, +0.8 C from the station mean1974: 23.3 C, -1.4 C from the station mean1975: 24.3 C, -0.4 C from the station mean1976: 23.4 C, -1.3 C from the station mean1977: 23.4 C, -1.3 C from the station mean1978: 23.6 C, -1.1 C from the station mean1979: 24.1 C, -0.6 C from the station mean1980: 25.1 C, +0.4 C from the station mean1981: 24.1 C, -0.6 C from the station mean1982: 24.0 C, -0.7 C from the station mean1983: 24.8 C, +0.1 C from the station mean1984: 23.5 C, -1.2 C from the station mean1985: 24.7 C, 0.0 C from the station mean1986: 25.6 C, +0.9 C from the station mean1987: 25.0 C, +0.3 C from the station mean1988: 26.1 C, +1.4 C from the station mean1989: 24.8 C, +0.1 C from the station mean1990: 25.7 C, +1.0 C from the station mean1991: 24.6 C, -0.1 C from the station mean1992: 24.9 C, +0.2 C from the station mean1993: 24.9 C, +0.2 C from the station mean1994: 24.7 C, 0.0 C from the station mean1995: 25.2 C, +0.5 C from the station mean1996: 25.2 C, +0.5 C from the station mean1997: 23.8 C, -0.9 C from the station mean1998: 25.0 C, +0.3 C from the station mean1999: 23.9 C, -0.8 C from the station mean2000: 23.5 C, -1.2 C from the station mean2001: 23.7 C, -1.0 C from the station mean2002: 24.9 C, +0.2 C from the station mean2003: 24.9 C, +0.2 C from the station mean2004: 24.4 C, -0.3 C from the station mean2005: 25.1 C, +0.4 C from the station mean2006: 24.4 C, -0.3 C from the station mean2007: 24.6 C, -0.1 C from the station mean2008: 25.4 C, +0.7 C from the station mean2009: 24.0 C, -0.7 C from the station mean2010: 24.2 C, -0.5 C from the station mean2011: 23.1 C, -1.6 C from the station mean2012: 23.8 C, -0.9 C from the station mean2013: 26.0 C, +1.3 C from the station mean2014: 25.4 C, +0.7 C from the station mean2015: 25.4 C, +0.7 C from the station mean2016: 25.3 C, +0.6 C from the station mean2017: 25.4 C, +0.7 C from the station mean2018: 25.6 C, +0.9 C from the station mean2019: 25.2 C, +0.5 C from the station mean2020: 25.7 C, +1.0 C from the station mean2021: 25.5 C, +0.8 C from the station mean2022: 25.1 C, +0.4 C from the station mean2023: 24.5 C, -0.2 C from the station mean2024: 25.2 C, +0.5 C from the station mean2025: 24.6 C, -0.1 C from the station mean196719751980198519901995200020052010201520202025
One stripe for each of 58 complete years at Mount Isa Aero, 1967 to 2025. Blue stripes are years cooler than the station's own mean of 24.7 C (76.4 F); red stripes are warmer. The coolest year was 2011, at 23.1 C (73.6 F), and the warmest was 1988, at 26.1 C (78.9 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Mount Isa Aero as warming stripes, 1967 to 2025
YearAnnual mean temperatureDifference from the station mean
196724.4 C-0.32 C
196824.7 C-0.01 C
196925.0 C+0.29 C
197025.2 C+0.48 C
197224.9 C+0.16 C
197325.5 C+0.77 C
197423.3 C-1.40 C
197524.3 C-0.40 C
197623.4 C-1.25 C
197723.4 C-1.32 C
197823.6 C-1.06 C
197924.1 C-0.55 C
198025.1 C+0.40 C
198124.1 C-0.58 C
198224.0 C-0.72 C
198324.8 C+0.11 C
198423.5 C-1.16 C
198524.7 C-0.01 C
198625.6 C+0.89 C
198725.0 C+0.28 C
198826.1 C+1.36 C
198924.8 C+0.15 C
199025.7 C+0.96 C
199124.6 C-0.14 C
199224.9 C+0.20 C
199324.9 C+0.25 C
199424.7 C+0.02 C
199525.2 C+0.48 C
199625.2 C+0.47 C
199723.8 C-0.90 C
199825.0 C+0.31 C
199923.9 C-0.75 C
200023.5 C-1.17 C
200123.7 C-0.97 C
200224.9 C+0.22 C
200324.9 C+0.24 C
200424.4 C-0.28 C
200525.1 C+0.45 C
200624.4 C-0.27 C
200724.6 C-0.05 C
200825.4 C+0.66 C
200924.0 C-0.71 C
201024.2 C-0.45 C
201123.1 C-1.57 C
201223.8 C-0.88 C
201326.0 C+1.29 C
201425.4 C+0.70 C
201525.4 C+0.73 C
201625.3 C+0.57 C
201725.4 C+0.71 C
201825.6 C+0.88 C
201925.2 C+0.52 C
202025.7 C+1.03 C
202125.5 C+0.78 C
202225.1 C+0.42 C
202324.5 C-0.24 C
202425.2 C+0.50 C
202524.6 C-0.10 C

The annual mean temperature here has risen by 0.12 C (0.01 to 0.23) per decade over 1967 to 2025. In Fahrenheit: 0.21 F (0.01 to 0.41) per decade. The slope is a straight line fitted to 58 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Mount Isa Aero
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.12 C (0.01 to 0.23) per decade0.21 F (0.01 to 0.41) per decade1967 to 202558Rise
Mean daily maximum0.3 C (0.2 to 0.4) per decade0.5 F (0.3 to 0.8) per decade1967 to 202558Rise
Mean daily minimum-0.1 C (-0.2 to 0.1) per decade-0.1 F (-0.4 to 0.1) per decade1967 to 202558Not clearly different from zero

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

1966 to 2026
Yearly extremes at Mount Isa Aero: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)45.9 C (114.6 F)199042.5 C (108.5 F)61
Coldest night (TNn)-2.9 C (26.8 F)19841.4 C (34.5 F)61
Wettest day (Rx1day)213.0 mm (8.4 in)200463.2 mm (2.5 in)61
Wettest five days (Rx5day)337.2 mm (13.3 in)2004106.0 mm (4.2 in)61
Longest dry spell (CDD)235 days197296 days61

Hottest day (TXx)

Hottest day (TXx) at Mount Isa Aero by year The hottest day of the year at Mount Isa Aero, 1966 to 2026. The record is 45.9 C (114.6 F) in 1990, marked on the chart; the median year is 42.5 C (108.5 F). 40424446197019801990200020102020Record: 45.9 C (114.6 F) in 1990
The hottest day of the year at Mount Isa Aero, 1966 to 2026. The record is 45.9 C (114.6 F) in 1990, marked on the chart; the median year is 42.5 C (108.5 F).
Hottest day (TXx) at Mount Isa Aero by year
YearHottest day (TXx)
196641.2 C (106.2 F)
196742.2 C (108.0 F)
196842.3 C (108.1 F)
196942.2 C (108.0 F)
197043.8 C (110.8 F)
197143.1 C (109.6 F)
197242.8 C (109.0 F)
197342.6 C (108.7 F)
197440.7 C (105.3 F)
197540.4 C (104.7 F)
197641.1 C (106.0 F)
197741.1 C (106.0 F)
197843.1 C (109.6 F)
197943.4 C (110.1 F)
198042.1 C (107.8 F)
198142.7 C (108.9 F)
198243.7 C (110.7 F)
198343.4 C (110.1 F)
198442.3 C (108.1 F)
198543.4 C (110.1 F)
198642.5 C (108.5 F)
198742.3 C (108.1 F)
198842.2 C (108.0 F)
198942.1 C (107.8 F)
199045.9 C (114.6 F)
199141.4 C (106.5 F)
199241.9 C (107.4 F)
199341.3 C (106.3 F)
199443.6 C (110.5 F)
199542.5 C (108.5 F)
199644.0 C (111.2 F)
199741.6 C (106.9 F)
199842.2 C (108.0 F)
199940.6 C (105.1 F)
200040.6 C (105.1 F)
200142.8 C (109.0 F)
200243.6 C (110.5 F)
200342.5 C (108.5 F)
200442.4 C (108.3 F)
200542.5 C (108.5 F)
200645.1 C (113.2 F)
200742.3 C (108.1 F)
200842.0 C (107.6 F)
200942.4 C (108.3 F)
201040.9 C (105.6 F)
201140.8 C (105.4 F)
201243.2 C (109.8 F)
201343.9 C (111.0 F)
201444.6 C (112.3 F)
201543.9 C (111.0 F)
201643.1 C (109.6 F)
201743.7 C (110.7 F)
201845.3 C (113.5 F)
201945.0 C (113.0 F)
202043.7 C (110.7 F)
202142.9 C (109.2 F)
202244.9 C (112.8 F)
202345.4 C (113.7 F)
202443.4 C (110.1 F)
202544.4 C (111.9 F)
202641.0 C (105.8 F)

Coldest night (TNn)

Coldest night (TNn) at Mount Isa Aero by year The coldest night of the year at Mount Isa Aero, 1966 to 2026. The record is -2.9 C (26.8 F) in 1984, marked on the chart; the median year is 1.4 C (34.5 F). -1001020197019801990200020102020Record: -2.9 C (26.8 F) in 1984
The coldest night of the year at Mount Isa Aero, 1966 to 2026. The record is -2.9 C (26.8 F) in 1984, marked on the chart; the median year is 1.4 C (34.5 F).
Coldest night (TNn) at Mount Isa Aero by year
YearColdest night (TNn)
196618.3 C (64.9 F)
1967-0.4 C (31.3 F)
19682.9 C (37.2 F)
19690.4 C (32.7 F)
19701.9 C (35.4 F)
19712.4 C (36.3 F)
19722.6 C (36.7 F)
19735.7 C (42.3 F)
19740.5 C (32.9 F)
19752.3 C (36.1 F)
19760.9 C (33.6 F)
1977-1.1 C (30.0 F)
19780.4 C (32.7 F)
1979-1.4 C (29.5 F)
1980-0.8 C (30.6 F)
1981-1.3 C (29.7 F)
1982-1.1 C (30.0 F)
1983-1.1 C (30.0 F)
1984-2.9 C (26.8 F)
19851.1 C (34.0 F)
19863.2 C (37.8 F)
19872.9 C (37.2 F)
19882.5 C (36.5 F)
19893.0 C (37.4 F)
19902.3 C (36.1 F)
19911.4 C (34.5 F)
19923.2 C (37.8 F)
19932.7 C (36.9 F)
19941.9 C (35.4 F)
19951.6 C (34.9 F)
19962.3 C (36.1 F)
19971.9 C (35.4 F)
19982.0 C (35.6 F)
19991.4 C (34.5 F)
2000-2.3 C (27.9 F)
20010.3 C (32.5 F)
2002-1.3 C (29.7 F)
20031.6 C (34.9 F)
2004-0.3 C (31.5 F)
20051.3 C (34.3 F)
20062.9 C (37.2 F)
20072.1 C (35.8 F)
20080.8 C (33.4 F)
2009-0.4 C (31.3 F)
20100.9 C (33.6 F)
20110.1 C (32.2 F)
2012-0.8 C (30.6 F)
20132.3 C (36.1 F)
2014-2.2 C (28.0 F)
20151.8 C (35.2 F)
20162.1 C (35.8 F)
20170.7 C (33.3 F)
2018-1.0 C (30.2 F)
20191.6 C (34.9 F)
20202.4 C (36.3 F)
20211.4 C (34.5 F)
20221.6 C (34.9 F)
20232.3 C (36.1 F)
2024-2.1 C (28.2 F)
2025-1.4 C (29.5 F)
20260.9 C (33.6 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Mount Isa Aero by year The wettest day of the year at Mount Isa Aero, 1966 to 2026. The record is 213.0 mm (8.4 in) in 2004, marked on the chart; the median year is 63.2 mm (2.5 in). 0100200300197019801990200020102020Record: 213.0 mm (8.4 in) in 2004
The wettest day of the year at Mount Isa Aero, 1966 to 2026. The record is 213.0 mm (8.4 in) in 2004, marked on the chart; the median year is 63.2 mm (2.5 in).
Wettest day (Rx1day) at Mount Isa Aero by year
YearWettest day (Rx1day)
196616.3 mm (0.6 in)
1967130.0 mm (5.1 in)
1968106.4 mm (4.2 in)
196943.7 mm (1.7 in)
197037.3 mm (1.5 in)
197177.2 mm (3.0 in)
197246.0 mm (1.8 in)
197351.1 mm (2.0 in)
197486.8 mm (3.4 in)
197575.4 mm (3.0 in)
197643.8 mm (1.7 in)
197781.2 mm (3.2 in)
197882.4 mm (3.2 in)
197940.4 mm (1.6 in)
198069.6 mm (2.7 in)
198165.6 mm (2.6 in)
198250.0 mm (2.0 in)
198383.2 mm (3.3 in)
1984109.4 mm (4.3 in)
198527.4 mm (1.1 in)
198632.6 mm (1.3 in)
198758.8 mm (2.3 in)
198847.6 mm (1.9 in)
198953.2 mm (2.1 in)
199054.8 mm (2.2 in)
199160.8 mm (2.4 in)
199248.0 mm (1.9 in)
199347.6 mm (1.9 in)
199454.2 mm (2.1 in)
199549.6 mm (2.0 in)
199665.8 mm (2.6 in)
199785.4 mm (3.4 in)
199886.6 mm (3.4 in)
199968.8 mm (2.7 in)
200070.8 mm (2.8 in)
200144.8 mm (1.8 in)
200258.4 mm (2.3 in)
200386.6 mm (3.4 in)
2004213.0 mm (8.4 in)
200568.0 mm (2.7 in)
200693.6 mm (3.7 in)
200754.8 mm (2.2 in)
200835.0 mm (1.4 in)
200984.2 mm (3.3 in)
201060.6 mm (2.4 in)
2011102.4 mm (4.0 in)
201244.6 mm (1.8 in)
201310.4 mm (0.4 in)
201432.0 mm (1.3 in)
201585.8 mm (3.4 in)
201663.2 mm (2.5 in)
201759.8 mm (2.4 in)
201840.4 mm (1.6 in)
2019123.2 mm (4.9 in)
2020115.0 mm (4.5 in)
202169.0 mm (2.7 in)
202235.8 mm (1.4 in)
202386.8 mm (3.4 in)
202492.4 mm (3.6 in)
202575.2 mm (3.0 in)
202675.8 mm (3.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Mount Isa Aero by year The wettest five days of the year at Mount Isa Aero, 1966 to 2026. The record is 337.2 mm (13.3 in) in 2004, marked on the chart; the median year is 106.0 mm (4.2 in). 0100200300400197019801990200020102020Record: 337.2 mm (13.3 in) in 2004
The wettest five days of the year at Mount Isa Aero, 1966 to 2026. The record is 337.2 mm (13.3 in) in 2004, marked on the chart; the median year is 106.0 mm (4.2 in).
Wettest five days (Rx5day) at Mount Isa Aero by year
YearWettest five days (Rx5day)
196616.3 mm (0.6 in)
1967149.1 mm (5.9 in)
1968148.0 mm (5.8 in)
196994.8 mm (3.7 in)
197038.6 mm (1.5 in)
1971160.5 mm (6.3 in)
197296.3 mm (3.8 in)
197387.6 mm (3.4 in)
1974177.7 mm (7.0 in)
1975123.2 mm (4.9 in)
1976115.8 mm (4.6 in)
1977181.8 mm (7.2 in)
1978114.4 mm (4.5 in)
197956.4 mm (2.2 in)
1980120.4 mm (4.7 in)
198171.0 mm (2.8 in)
1982114.6 mm (4.5 in)
1983106.0 mm (4.2 in)
1984134.8 mm (5.3 in)
198553.8 mm (2.1 in)
198657.6 mm (2.3 in)
198782.0 mm (3.2 in)
198862.2 mm (2.4 in)
198979.8 mm (3.1 in)
199074.4 mm (2.9 in)
1991105.8 mm (4.2 in)
199293.8 mm (3.7 in)
1993118.2 mm (4.7 in)
199456.0 mm (2.2 in)
199564.6 mm (2.5 in)
1996171.6 mm (6.8 in)
1997209.8 mm (8.3 in)
1998128.8 mm (5.1 in)
1999174.6 mm (6.9 in)
2000135.6 mm (5.3 in)
200162.6 mm (2.5 in)
200286.8 mm (3.4 in)
2003101.8 mm (4.0 in)
2004337.2 mm (13.3 in)
2005115.0 mm (4.5 in)
2006154.2 mm (6.1 in)
200786.8 mm (3.4 in)
200858.6 mm (2.3 in)
2009199.8 mm (7.9 in)
201095.8 mm (3.8 in)
2011141.0 mm (5.6 in)
201249.8 mm (2.0 in)
201317.8 mm (0.7 in)
201458.6 mm (2.3 in)
2015207.0 mm (8.1 in)
201677.2 mm (3.0 in)
201765.4 mm (2.6 in)
2018122.2 mm (4.8 in)
2019237.0 mm (9.3 in)
2020158.8 mm (6.3 in)
202180.4 mm (3.2 in)
202280.8 mm (3.2 in)
2023204.8 mm (8.1 in)
2024126.2 mm (5.0 in)
2025161.2 mm (6.3 in)
2026143.0 mm (5.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Mount Isa Aero by year The longest dry spell of the year at Mount Isa Aero, 1966 to 2026. The record is 235 days in 1972, marked on the chart; the median year is 96 days. 0100200300197019801990200020102020Record: 235 days in 1972
The longest dry spell of the year at Mount Isa Aero, 1966 to 2026. The record is 235 days in 1972, marked on the chart; the median year is 96 days.
Longest dry spell (CDD) at Mount Isa Aero by year
YearLongest dry spell (CDD)
196621 days
196773 days
196896 days
1969103 days
1970151 days
197142 days
1972235 days
197378 days
1974103 days
1975115 days
1976138 days
1977166 days
197855 days
1979118 days
198095 days
198150 days
1982201 days
198388 days
1984110 days
1985133 days
198672 days
1987134 days
1988104 days
198996 days
1990101 days
1991132 days
199278 days
199368 days
1994117 days
199588 days
1996106 days
1997155 days
199849 days
1999193 days
2000130 days
2001135 days
2002200 days
200374 days
200494 days
200573 days
2006110 days
200776 days
2008121 days
2009143 days
201049 days
201179 days
201274 days
2013168 days
2014119 days
201599 days
201634 days
201744 days
201864 days
2019121 days
202075 days
202163 days
202258 days
202397 days
202469 days
202557 days
202665 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.

Rainfall Return Levels

57 years, 1968 to 2025

A day with at least 62.1 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 161.5 mm (6.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Mount Isa Aero: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years62.1 mm (2.4 in)
5 years87.9 mm (3.5 in)
10 years105.3 mm (4.1 in)
25 years127.6 mm (5.0 in)
50 years144.5 mm (5.7 in)
100 years161.5 mm (6.4 in)Longer than the 57 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, 57 years of values from 1968 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: 213.0 mm (8.4 in) in 2004; 123.2 mm (4.9 in) in 2019; 115.0 mm (4.5 in) in 2020.

Climate Twins

2011 to 2025 against 1961 to 1990

Over 2011 to 2025, Mount Isa Aero had a mean temperature of 25.0 C (77.1 F) and 461.0 mm (18.1 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Julia Creek Post Office (Australia, 235 km away), Rabbit Flat (Australia, 988 km away) and Richmond Post Office (Australia, 380 km away).

Climate twins of Mount Isa Aero: stations whose 1961 to 1990 climate is closest to its 2011 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
Julia Creek Post OfficeAustralia235 km (146 mi)25.2 C (77.3 F)510.2 mm (20.1 in)0.50
Rabbit FlatAustralia988 km (614 mi)24.9 C (76.8 F)432.2 mm (17.0 in)0.56
Richmond Post OfficeAustralia380 km (236 mi)24.8 C (76.6 F)501.0 mm (19.7 in)0.62

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

  • Data for Mount Isa Aero standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Mount Isa 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-12).