Perth Airport Weather Records (ASN00009021)
Record envelope, standing records and threshold days for Perth Airport (ASN00009021), Australia, with 83 years of record.
Key Facts for Perth Airport
- Perth Airport (ASN00009021) is a weather station in Australia at -31.93 latitude and 115.98 longitude, 15 m (51 ft) above sea level.
- The station reports from 1944 to 2026, 83 years of record.
- 1,464 records set at Perth Airport still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Perth Airport set a daily record high minimum temperature of 18.2 C (64.8 F) on 17 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, -31.93 latitude, 115.98 longitude.
- Elevation: 15 m (51 ft).
- Period of record: 1944 to 2026, 83 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
11 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 46.0 C (114.8 F) | 6.0 C (42.8 F) | 41.6 C (106.9 F) | 12.0 C (53.6 F) |
| Feb | 46.7 C (116.1 F) | 5.7 C (42.3 F) | 42.9 C (109.2 F) | 12.4 C (54.3 F) |
| Mar | 43.8 C (110.8 F) | 3.1 C (37.6 F) | 41.5 C (106.7 F) | 10.8 C (51.4 F) |
| Apr | 39.6 C (103.3 F) | 1.2 C (34.2 F) | 33.1 C (91.6 F) | 6.4 C (43.5 F) |
| May | 35.3 C (95.5 F) | -0.4 C (31.3 F) | 28.9 C (84.0 F) | 2.8 C (37.0 F) |
| Jun | 27.8 C (82.0 F) | -1.3 C (29.7 F) | 23.4 C (74.1 F) | 1.0 C (33.8 F) |
| Jul | 25.7 C (78.3 F) | -1.0 C (30.2 F) | 25.6 C (78.1 F) | 3.0 C (37.4 F) |
| Aug | 30.2 C (86.4 F) | 0.1 C (32.2 F) | 26.9 C (80.4 F) | 1.1 C (34.0 F) |
| Sep | 34.9 C (94.8 F) | -0.2 C (31.6 F) | 30.9 C (87.6 F) | 7.1 C (44.8 F) |
| Oct | 37.7 C (99.9 F) | 1.2 C (34.2 F) | 21.9 C (71.4 F) | 8.1 C (46.6 F) |
| Nov | 41.1 C (106.0 F) | 3.2 C (37.8 F) | n/a | n/a |
| Dec | 44.5 C (112.1 F) | 4.8 C (40.6 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1944 | 16 |
| 1945 | 23 |
| 1946 | 19 |
| 1947 | 26 |
| 1948 | 11 |
| 1949 | 5 |
| 1950 | 19 |
| 1951 | 22 |
| 1952 | 16 |
| 1953 | 13 |
| 1954 | 26 |
| 1955 | 24 |
| 1956 | 19 |
| 1957 | 12 |
| 1958 | 11 |
| 1959 | 19 |
| 1960 | 23 |
| 1961 | 18 |
| 1962 | 16 |
| 1963 | 11 |
| 1964 | 26 |
| 1965 | 7 |
| 1966 | 16 |
| 1967 | 12 |
| 1968 | 36 |
| 1969 | 14 |
| 1970 | 9 |
| 1971 | 21 |
| 1972 | 27 |
| 1973 | 8 |
| 1974 | 8 |
| 1975 | 13 |
| 1976 | 18 |
| 1977 | 13 |
| 1978 | 13 |
| 1979 | 12 |
| 1980 | 10 |
| 1981 | 16 |
| 1982 | 22 |
| 1983 | 11 |
| 1984 | 9 |
| 1985 | 28 |
| 1986 | 16 |
| 1987 | 20 |
| 1988 | 21 |
| 1989 | 9 |
| 1990 | 22 |
| 1991 | 22 |
| 1992 | 18 |
| 1993 | 14 |
| 1994 | 12 |
| 1995 | 9 |
| 1996 | 12 |
| 1997 | 22 |
| 1998 | 24 |
| 1999 | 15 |
| 2000 | 14 |
| 2001 | 18 |
| 2002 | 15 |
| 2003 | 18 |
| 2004 | 36 |
| 2005 | 22 |
| 2006 | 20 |
| 2007 | 19 |
| 2008 | 13 |
| 2009 | 14 |
| 2010 | 25 |
| 2011 | 16 |
| 2012 | 15 |
| 2013 | 17 |
| 2014 | 17 |
| 2015 | 30 |
| 2016 | 14 |
| 2017 | 18 |
| 2018 | 14 |
| 2019 | 37 |
| 2020 | 22 |
| 2021 | 18 |
| 2022 | 16 |
| 2023 | 20 |
| 2024 | 33 |
| 2025 | 18 |
| 2026 | 11 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1987-07-29 | Record daily precipitation | Record daily precipitation 97.2 mm (3.8 in) |
| 1991-01-31 | Record high maximum temperature | Record high maximum temperature 46.0 C (114.8 F) |
| 1991-02-23 | Record high maximum temperature | Record high maximum temperature 46.7 C (116.1 F) |
| 1992-02-09 | Record daily precipitation | Record daily precipitation 132.0 mm (5.2 in) |
| 2006-06-17 | Record low minimum temperature | Record low minimum temperature -1.3 C (29.7 F) |
Wettest Day of Each Month
Feb: 132.0 mm (5.2 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 90.2 mm (3.6 in) | 16 January 2018 |
| Feb | 132.0 mm (5.2 in) | 9 February 1992 |
| Mar | 52.0 mm (2.0 in) | 28 March 2026 |
| Apr | 61.0 mm (2.4 in) | 17 April 2002 |
| May | 57.4 mm (2.3 in) | 3 May 1947 |
| Jun | 78.2 mm (3.1 in) | 10 June 1945 |
| Jul | 99.0 mm (3.9 in) | 30 July 2001 |
| Aug | 66.4 mm (2.6 in) | 8 August 1977 |
| Sep | 59.6 mm (2.3 in) | 14 September 1984 |
| Oct | 60.2 mm (2.4 in) | 18 October 1995 |
| Nov | 41.1 mm (1.6 in) | 15 November 1948 |
| Dec | 36.0 mm (1.4 in) | 13 December 2011 |
Period of Record Coverage
1944 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1944 | 212 | 58% | No |
| 1945 | 365 | 100% | Yes |
| 1946 | 364 | 100% | Yes |
| 1947 | 364 | 100% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 363 | 99% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 364 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 274 | 75% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 17 September 2026 | Perth Airport, AU | daily high min (Provisional) | 18.2 C (64.8 F) | 1.4 C (2.5 F) | 52 years | 27 of 100 (Routine) |
| 17 September 2026 | Perth Airport, AU | daily high max (Provisional) | 30.7 C (87.3 F) | 2.9 C (5.2 F) | 1 year | 17 of 100 (Routine) |
| 16 September 2026 | Perth Airport, AU | daily high max (Provisional) | 30.9 C (87.6 F) | 2.1 C (3.8 F) | 81 years | 38 of 100 (Notable) |
| 16 September 2026 | Perth Airport, AU | daily high min (Provisional) | 16.1 C (61.0 F) | 1.6 C (2.9 F) | 32 years | 22 of 100 (Routine) |
| 12 September 2026 | Perth Airport, AU | daily high min (Provisional) | 15.3 C (59.5 F) | 0.2 C (0.4 F) | 32 years | 17 of 100 (Routine) |
| 30 August 2026 | Perth Airport, AU | daily high max (Provisional) | 26.9 C (80.4 F) | 2.1 C (3.8 F) | 20 years | 22 of 100 (Routine) |
| 11 August 2026 | Perth Airport, AU | daily low min | 1.1 C (34.0 F) | 0.6 C (1.1 F) | 65 years | 28 of 100 (Routine) |
| 8 August 2026 | Perth Airport, AU | daily low max | 12.1 C (53.8 F) | 1.7 C (3.1 F) | 55 years | 31 of 100 (Routine) |
| 3 August 2026 | Perth Airport, AU | daily high max | 25.7 C (78.3 F) | 0.8 C (1.4 F) | 79 years | 34 of 100 (Routine) |
| 30 July 2026 | Perth Airport, AU | daily high max (Tie) | 23.3 C (73.9 F) | tie | 13 years | 3 of 100 (Routine) |
| 18 July 2026 | Perth Airport, AU | daily high min | 14.2 C (57.6 F) | 1.1 C (2.0 F) | 67 years | 31 of 100 (Routine) |
| 17 July 2026 | Perth Airport, AU | daily high min | 14.6 C (58.3 F) | 0.6 C (1.1 F) | 48 years | 23 of 100 (Routine) |
| 15 July 2026 | Perth Airport, AU | daily high max | 25.6 C (78.1 F) | 2.4 C (4.3 F) | 48 years | 33 of 100 (Routine) |
| 16 June 2026 | Perth Airport, AU | daily low min | 1.0 C (33.8 F) | 1.4 C (2.5 F) | 12 years | 15 of 100 (Routine) |
| 23 May 2026 | Perth Airport, AU | daily low min | 2.8 C (37.0 F) | 0.7 C (1.3 F) | 61 years | 28 of 100 (Routine) |
| 28 March 2026 | Perth Airport, AU | monthly rain | 52.0 mm (2.0 in) | 8.8 mm (0.35 in) | 16 years | 35 of 100 (Notable) |
| 19 March 2026 | Perth Airport, AU | daily high max | 39.5 C (103.1 F) | 1.4 C (2.5 F) | 4 years | 12 of 100 (Routine) |
| 18 March 2026 | Perth Airport, AU | daily high min | 23.2 C (73.8 F) | 0.4 C (0.7 F) | 63 years | 27 of 100 (Routine) |
| 18 March 2026 | Perth Airport, AU | daily high max | 39.1 C (102.4 F) | 0.1 C (0.2 F) | 32 years | 17 of 100 (Routine) |
| 25 December 2025 | Perth Airport, AU | daily high min | 23.5 C (74.3 F) | 1.7 C (3.1 F) | 6 years | 13 of 100 (Routine) |
Climate Trend
81 complete years, 1945 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1945 | 18.3 C | -0.16 C |
| 1946 | 17.4 C | -1.09 C |
| 1947 | 17.6 C | -0.86 C |
| 1948 | 17.9 C | -0.51 C |
| 1949 | 18.4 C | -0.06 C |
| 1950 | 17.8 C | -0.64 C |
| 1951 | 17.1 C | -1.36 C |
| 1952 | 17.3 C | -1.16 C |
| 1953 | 17.2 C | -1.22 C |
| 1954 | 17.2 C | -1.26 C |
| 1955 | 17.6 C | -0.86 C |
| 1956 | 17.2 C | -1.22 C |
| 1957 | 17.8 C | -0.62 C |
| 1958 | 18.1 C | -0.37 C |
| 1959 | 18.4 C | -0.09 C |
| 1960 | 17.0 C | -1.43 C |
| 1961 | 18.4 C | -0.07 C |
| 1962 | 18.6 C | +0.11 C |
| 1963 | 18.9 C | +0.50 C |
| 1964 | 17.9 C | -0.58 C |
| 1965 | 18.5 C | +0.01 C |
| 1966 | 17.8 C | -0.63 C |
| 1967 | 18.7 C | +0.22 C |
| 1968 | 16.9 C | -1.56 C |
| 1969 | 18.2 C | -0.28 C |
| 1970 | 18.3 C | -0.16 C |
| 1971 | 17.3 C | -1.11 C |
| 1972 | 18.8 C | +0.39 C |
| 1973 | 17.8 C | -0.60 C |
| 1974 | 18.1 C | -0.36 C |
| 1975 | 18.1 C | -0.34 C |
| 1976 | 18.7 C | +0.29 C |
| 1977 | 18.7 C | +0.28 C |
| 1978 | 19.0 C | +0.54 C |
| 1979 | 18.0 C | -0.40 C |
| 1980 | 18.2 C | -0.28 C |
| 1981 | 18.1 C | -0.34 C |
| 1982 | 18.3 C | -0.13 C |
| 1983 | 19.1 C | +0.65 C |
| 1984 | 18.1 C | -0.32 C |
| 1985 | 18.8 C | +0.33 C |
| 1986 | 17.6 C | -0.83 C |
| 1987 | 18.4 C | -0.05 C |
| 1988 | 19.0 C | +0.59 C |
| 1989 | 18.5 C | +0.02 C |
| 1990 | 17.9 C | -0.59 C |
| 1991 | 18.7 C | +0.21 C |
| 1992 | 18.4 C | -0.01 C |
| 1993 | 18.1 C | -0.32 C |
| 1994 | 19.2 C | +0.75 C |
| 1995 | 18.9 C | +0.47 C |
| 1996 | 19.1 C | +0.65 C |
| 1997 | 18.9 C | +0.48 C |
| 1998 | 18.9 C | +0.44 C |
| 1999 | 19.3 C | +0.85 C |
| 2000 | 18.8 C | +0.34 C |
| 2001 | 18.1 C | -0.33 C |
| 2002 | 18.7 C | +0.21 C |
| 2003 | 18.9 C | +0.41 C |
| 2004 | 18.6 C | +0.18 C |
| 2005 | 18.0 C | -0.49 C |
| 2006 | 18.6 C | +0.18 C |
| 2007 | 18.4 C | 0.00 C |
| 2008 | 18.5 C | +0.08 C |
| 2009 | 18.9 C | +0.49 C |
| 2010 | 19.0 C | +0.51 C |
| 2011 | 19.8 C | +1.40 C |
| 2012 | 19.2 C | +0.72 C |
| 2013 | 19.4 C | +0.95 C |
| 2014 | 19.2 C | +0.80 C |
| 2015 | 19.5 C | +1.04 C |
| 2016 | 18.2 C | -0.21 C |
| 2017 | 19.0 C | +0.55 C |
| 2018 | 18.8 C | +0.35 C |
| 2019 | 19.2 C | +0.79 C |
| 2020 | 19.3 C | +0.86 C |
| 2021 | 19.0 C | +0.56 C |
| 2022 | 19.0 C | +0.60 C |
| 2023 | 19.6 C | +1.11 C |
| 2024 | 20.4 C | +1.94 C |
| 2025 | 19.7 C | +1.22 C |
The annual mean temperature here has risen by 0.2 C (0.2 to 0.3) per decade over 1945 to 2025. In Fahrenheit: 0.4 F (0.3 to 0.5) per decade. The slope is a straight line fitted to 81 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.2 C (0.2 to 0.3) per decade | 0.4 F (0.3 to 0.5) per decade | 1945 to 2025 | 81 | Rise |
| Mean daily maximum | 0.3 C (0.2 to 0.3) per decade | 0.5 F (0.4 to 0.6) per decade | 1945 to 2025 | 81 | Rise |
| Mean daily minimum | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.2 to 0.4) per decade | 1945 to 2025 | 81 | Rise |
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
1944 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 46.7 C (116.1 F) | 1991 | 42.1 C (107.8 F) | 83 |
| Coldest night (TNn) | -1.3 C (29.7 F) | 2006 | 1.1 C (34.0 F) | 83 |
| Wettest day (Rx1day) | 132.0 mm (5.2 in) | 1992 | 43.8 mm (1.7 in) | 83 |
| Wettest five days (Rx5day) | 178.1 mm (7.0 in) | 1945 | 83.8 mm (3.3 in) | 83 |
| Longest dry spell (CDD) | 91 days | 2018 | 47 days | 83 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1944 | 38.7 C (101.7 F) |
| 1945 | 41.8 C (107.2 F) |
| 1946 | 38.8 C (101.8 F) |
| 1947 | 38.7 C (101.7 F) |
| 1948 | 42.8 C (109.0 F) |
| 1949 | 41.2 C (106.2 F) |
| 1950 | 42.1 C (107.8 F) |
| 1951 | 41.1 C (106.0 F) |
| 1952 | 40.6 C (105.1 F) |
| 1953 | 40.3 C (104.5 F) |
| 1954 | 40.3 C (104.5 F) |
| 1955 | 41.7 C (107.1 F) |
| 1956 | 44.1 C (111.4 F) |
| 1957 | 40.3 C (104.5 F) |
| 1958 | 41.1 C (106.0 F) |
| 1959 | 43.0 C (109.4 F) |
| 1960 | 40.1 C (104.2 F) |
| 1961 | 44.6 C (112.3 F) |
| 1962 | 42.2 C (108.0 F) |
| 1963 | 41.0 C (105.8 F) |
| 1964 | 41.1 C (106.0 F) |
| 1965 | 42.1 C (107.8 F) |
| 1966 | 41.3 C (106.3 F) |
| 1967 | 41.1 C (106.0 F) |
| 1968 | 43.3 C (109.9 F) |
| 1969 | 43.4 C (110.1 F) |
| 1970 | 40.2 C (104.4 F) |
| 1971 | 41.0 C (105.8 F) |
| 1972 | 41.2 C (106.2 F) |
| 1973 | 41.2 C (106.2 F) |
| 1974 | 42.4 C (108.3 F) |
| 1975 | 42.4 C (108.3 F) |
| 1976 | 41.6 C (106.9 F) |
| 1977 | 42.8 C (109.0 F) |
| 1978 | 44.2 C (111.6 F) |
| 1979 | 42.1 C (107.8 F) |
| 1980 | 44.5 C (112.1 F) |
| 1981 | 42.1 C (107.8 F) |
| 1982 | 43.8 C (110.8 F) |
| 1983 | 40.8 C (105.4 F) |
| 1984 | 43.4 C (110.1 F) |
| 1985 | 43.5 C (110.3 F) |
| 1986 | 41.8 C (107.2 F) |
| 1987 | 41.6 C (106.9 F) |
| 1988 | 42.1 C (107.8 F) |
| 1989 | 43.4 C (110.1 F) |
| 1990 | 41.9 C (107.4 F) |
| 1991 | 46.7 C (116.1 F) |
| 1992 | 40.7 C (105.3 F) |
| 1993 | 41.2 C (106.2 F) |
| 1994 | 42.0 C (107.6 F) |
| 1995 | 40.6 C (105.1 F) |
| 1996 | 43.2 C (109.8 F) |
| 1997 | 44.9 C (112.8 F) |
| 1998 | 43.2 C (109.8 F) |
| 1999 | 40.4 C (104.7 F) |
| 2000 | 41.1 C (106.0 F) |
| 2001 | 40.1 C (104.2 F) |
| 2002 | 43.2 C (109.8 F) |
| 2003 | 43.8 C (110.8 F) |
| 2004 | 42.1 C (107.8 F) |
| 2005 | 42.6 C (108.7 F) |
| 2006 | 40.9 C (105.6 F) |
| 2007 | 44.5 C (112.1 F) |
| 2008 | 43.4 C (110.1 F) |
| 2009 | 43.0 C (109.4 F) |
| 2010 | 43.2 C (109.8 F) |
| 2011 | 41.8 C (107.2 F) |
| 2012 | 42.2 C (108.0 F) |
| 2013 | 41.1 C (106.0 F) |
| 2014 | 43.5 C (110.3 F) |
| 2015 | 44.2 C (111.6 F) |
| 2016 | 43.0 C (109.4 F) |
| 2017 | 43.3 C (109.9 F) |
| 2018 | 40.9 C (105.6 F) |
| 2019 | 42.9 C (109.2 F) |
| 2020 | 43.3 C (109.9 F) |
| 2021 | 43.3 C (109.9 F) |
| 2022 | 44.1 C (111.4 F) |
| 2023 | 40.7 C (105.3 F) |
| 2024 | 44.6 C (112.3 F) |
| 2025 | 44.7 C (112.5 F) |
| 2026 | 42.9 C (109.2 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1944 | 0.9 C (33.6 F) |
| 1945 | 2.6 C (36.7 F) |
| 1946 | -1.1 C (30.0 F) |
| 1947 | 1.0 C (33.8 F) |
| 1948 | 1.3 C (34.3 F) |
| 1949 | 2.8 C (37.0 F) |
| 1950 | 0.1 C (32.2 F) |
| 1951 | 0.6 C (33.1 F) |
| 1952 | 1.6 C (34.9 F) |
| 1953 | 2.0 C (35.6 F) |
| 1954 | 1.4 C (34.5 F) |
| 1955 | -0.8 C (30.6 F) |
| 1956 | -0.2 C (31.6 F) |
| 1957 | 0.1 C (32.2 F) |
| 1958 | 0.4 C (32.7 F) |
| 1959 | 1.4 C (34.5 F) |
| 1960 | 0.7 C (33.3 F) |
| 1961 | 0.7 C (33.3 F) |
| 1962 | 2.3 C (36.1 F) |
| 1963 | 4.4 C (39.9 F) |
| 1964 | -0.4 C (31.3 F) |
| 1965 | 2.8 C (37.0 F) |
| 1966 | 1.1 C (34.0 F) |
| 1967 | 2.4 C (36.3 F) |
| 1968 | 0.6 C (33.1 F) |
| 1969 | 0.6 C (33.1 F) |
| 1970 | 3.4 C (38.1 F) |
| 1971 | 2.2 C (36.0 F) |
| 1972 | 0.7 C (33.3 F) |
| 1973 | 0.5 C (32.9 F) |
| 1974 | 2.6 C (36.7 F) |
| 1975 | 1.3 C (34.3 F) |
| 1976 | 1.3 C (34.3 F) |
| 1977 | 1.4 C (34.5 F) |
| 1978 | 2.6 C (36.7 F) |
| 1979 | 0.0 C (32.0 F) |
| 1980 | 2.3 C (36.1 F) |
| 1981 | 1.8 C (35.2 F) |
| 1982 | 2.2 C (36.0 F) |
| 1983 | 1.6 C (34.9 F) |
| 1984 | 1.1 C (34.0 F) |
| 1985 | 1.5 C (34.7 F) |
| 1986 | 0.2 C (32.4 F) |
| 1987 | 1.9 C (35.4 F) |
| 1988 | 2.7 C (36.9 F) |
| 1989 | 1.9 C (35.4 F) |
| 1990 | -0.3 C (31.5 F) |
| 1991 | 2.3 C (36.1 F) |
| 1992 | 1.1 C (34.0 F) |
| 1993 | 1.5 C (34.7 F) |
| 1994 | 2.4 C (36.3 F) |
| 1995 | 2.5 C (36.5 F) |
| 1996 | 2.9 C (37.2 F) |
| 1997 | 1.6 C (34.9 F) |
| 1998 | -0.2 C (31.6 F) |
| 1999 | 1.8 C (35.2 F) |
| 2000 | 0.4 C (32.7 F) |
| 2001 | 0.5 C (32.9 F) |
| 2002 | 1.0 C (33.8 F) |
| 2003 | 1.2 C (34.2 F) |
| 2004 | 0.1 C (32.2 F) |
| 2005 | 0.8 C (33.4 F) |
| 2006 | -1.3 C (29.7 F) |
| 2007 | 2.5 C (36.5 F) |
| 2008 | 0.4 C (32.7 F) |
| 2009 | 0.9 C (33.6 F) |
| 2010 | -1.0 C (30.2 F) |
| 2011 | 0.2 C (32.4 F) |
| 2012 | -0.7 C (30.7 F) |
| 2013 | -0.3 C (31.5 F) |
| 2014 | 1.0 C (33.8 F) |
| 2015 | 0.1 C (32.2 F) |
| 2016 | 0.9 C (33.6 F) |
| 2017 | 1.0 C (33.8 F) |
| 2018 | 2.5 C (36.5 F) |
| 2019 | 1.5 C (34.7 F) |
| 2020 | 2.3 C (36.1 F) |
| 2021 | 0.5 C (32.9 F) |
| 2022 | 2.1 C (35.8 F) |
| 2023 | -0.6 C (30.9 F) |
| 2024 | 2.4 C (36.3 F) |
| 2025 | -0.8 C (30.6 F) |
| 2026 | 1.0 C (33.8 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1944 | 50.3 mm (2.0 in) |
| 1945 | 78.2 mm (3.1 in) |
| 1946 | 37.1 mm (1.5 in) |
| 1947 | 78.0 mm (3.1 in) |
| 1948 | 54.4 mm (2.1 in) |
| 1949 | 37.8 mm (1.5 in) |
| 1950 | 40.6 mm (1.6 in) |
| 1951 | 39.1 mm (1.5 in) |
| 1952 | 40.1 mm (1.6 in) |
| 1953 | 40.6 mm (1.6 in) |
| 1954 | 42.2 mm (1.7 in) |
| 1955 | 53.6 mm (2.1 in) |
| 1956 | 35.8 mm (1.4 in) |
| 1957 | 45.0 mm (1.8 in) |
| 1958 | 43.9 mm (1.7 in) |
| 1959 | 36.1 mm (1.4 in) |
| 1960 | 31.8 mm (1.3 in) |
| 1961 | 36.8 mm (1.4 in) |
| 1962 | 38.9 mm (1.5 in) |
| 1963 | 55.4 mm (2.2 in) |
| 1964 | 45.5 mm (1.8 in) |
| 1965 | 53.3 mm (2.1 in) |
| 1966 | 39.9 mm (1.6 in) |
| 1967 | 77.0 mm (3.0 in) |
| 1968 | 48.3 mm (1.9 in) |
| 1969 | 59.2 mm (2.3 in) |
| 1970 | 49.8 mm (2.0 in) |
| 1971 | 46.5 mm (1.8 in) |
| 1972 | 38.6 mm (1.5 in) |
| 1973 | 39.1 mm (1.5 in) |
| 1974 | 32.4 mm (1.3 in) |
| 1975 | 39.8 mm (1.6 in) |
| 1976 | 37.8 mm (1.5 in) |
| 1977 | 66.4 mm (2.6 in) |
| 1978 | 49.0 mm (1.9 in) |
| 1979 | 32.0 mm (1.3 in) |
| 1980 | 49.4 mm (1.9 in) |
| 1981 | 44.4 mm (1.7 in) |
| 1982 | 39.6 mm (1.6 in) |
| 1983 | 52.4 mm (2.1 in) |
| 1984 | 59.6 mm (2.3 in) |
| 1985 | 42.4 mm (1.7 in) |
| 1986 | 74.8 mm (2.9 in) |
| 1987 | 97.2 mm (3.8 in) |
| 1988 | 62.8 mm (2.5 in) |
| 1989 | 42.2 mm (1.7 in) |
| 1990 | 51.6 mm (2.0 in) |
| 1991 | 41.8 mm (1.6 in) |
| 1992 | 132.0 mm (5.2 in) |
| 1993 | 39.8 mm (1.6 in) |
| 1994 | 48.4 mm (1.9 in) |
| 1995 | 60.2 mm (2.4 in) |
| 1996 | 40.6 mm (1.6 in) |
| 1997 | 41.6 mm (1.6 in) |
| 1998 | 35.8 mm (1.4 in) |
| 1999 | 34.4 mm (1.4 in) |
| 2000 | 60.8 mm (2.4 in) |
| 2001 | 99.0 mm (3.9 in) |
| 2002 | 61.0 mm (2.4 in) |
| 2003 | 40.4 mm (1.6 in) |
| 2004 | 36.2 mm (1.4 in) |
| 2005 | 47.4 mm (1.9 in) |
| 2006 | 23.6 mm (0.9 in) |
| 2007 | 42.8 mm (1.7 in) |
| 2008 | 52.4 mm (2.1 in) |
| 2009 | 26.8 mm (1.1 in) |
| 2010 | 76.6 mm (3.0 in) |
| 2011 | 37.4 mm (1.5 in) |
| 2012 | 32.2 mm (1.3 in) |
| 2013 | 42.6 mm (1.7 in) |
| 2014 | 47.2 mm (1.9 in) |
| 2015 | 40.0 mm (1.6 in) |
| 2016 | 36.6 mm (1.4 in) |
| 2017 | 74.8 mm (2.9 in) |
| 2018 | 90.2 mm (3.6 in) |
| 2019 | 43.8 mm (1.7 in) |
| 2020 | 46.0 mm (1.8 in) |
| 2021 | 56.0 mm (2.2 in) |
| 2022 | 31.8 mm (1.3 in) |
| 2023 | 72.8 mm (2.9 in) |
| 2024 | 38.4 mm (1.5 in) |
| 2025 | 38.4 mm (1.5 in) |
| 2026 | 52.0 mm (2.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1944 | 69.9 mm (2.8 in) |
| 1945 | 178.1 mm (7.0 in) |
| 1946 | 73.3 mm (2.9 in) |
| 1947 | 129.6 mm (5.1 in) |
| 1948 | 96.6 mm (3.8 in) |
| 1949 | 66.0 mm (2.6 in) |
| 1950 | 82.9 mm (3.3 in) |
| 1951 | 77.4 mm (3.0 in) |
| 1952 | 81.8 mm (3.2 in) |
| 1953 | 69.3 mm (2.7 in) |
| 1954 | 108.3 mm (4.3 in) |
| 1955 | 116.9 mm (4.6 in) |
| 1956 | 83.8 mm (3.3 in) |
| 1957 | 119.6 mm (4.7 in) |
| 1958 | 137.6 mm (5.4 in) |
| 1959 | 75.6 mm (3.0 in) |
| 1960 | 60.0 mm (2.4 in) |
| 1961 | 71.2 mm (2.8 in) |
| 1962 | 89.7 mm (3.5 in) |
| 1963 | 114.6 mm (4.5 in) |
| 1964 | 122.0 mm (4.8 in) |
| 1965 | 145.5 mm (5.7 in) |
| 1966 | 88.1 mm (3.5 in) |
| 1967 | 96.5 mm (3.8 in) |
| 1968 | 87.9 mm (3.5 in) |
| 1969 | 86.5 mm (3.4 in) |
| 1970 | 119.1 mm (4.7 in) |
| 1971 | 76.8 mm (3.0 in) |
| 1972 | 70.3 mm (2.8 in) |
| 1973 | 74.4 mm (2.9 in) |
| 1974 | 90.0 mm (3.5 in) |
| 1975 | 88.4 mm (3.5 in) |
| 1976 | 74.4 mm (2.9 in) |
| 1977 | 107.0 mm (4.2 in) |
| 1978 | 112.2 mm (4.4 in) |
| 1979 | 65.0 mm (2.6 in) |
| 1980 | 87.0 mm (3.4 in) |
| 1981 | 112.2 mm (4.4 in) |
| 1982 | 74.4 mm (2.9 in) |
| 1983 | 92.8 mm (3.7 in) |
| 1984 | 65.8 mm (2.6 in) |
| 1985 | 63.6 mm (2.5 in) |
| 1986 | 153.8 mm (6.1 in) |
| 1987 | 117.6 mm (4.6 in) |
| 1988 | 87.2 mm (3.4 in) |
| 1989 | 62.8 mm (2.5 in) |
| 1990 | 61.4 mm (2.4 in) |
| 1991 | 92.6 mm (3.6 in) |
| 1992 | 143.4 mm (5.6 in) |
| 1993 | 67.6 mm (2.7 in) |
| 1994 | 66.6 mm (2.6 in) |
| 1995 | 90.4 mm (3.6 in) |
| 1996 | 145.8 mm (5.7 in) |
| 1997 | 73.6 mm (2.9 in) |
| 1998 | 93.6 mm (3.7 in) |
| 1999 | 57.2 mm (2.3 in) |
| 2000 | 105.8 mm (4.2 in) |
| 2001 | 119.8 mm (4.7 in) |
| 2002 | 68.6 mm (2.7 in) |
| 2003 | 89.6 mm (3.5 in) |
| 2004 | 50.4 mm (2.0 in) |
| 2005 | 129.4 mm (5.1 in) |
| 2006 | 46.2 mm (1.8 in) |
| 2007 | 66.6 mm (2.6 in) |
| 2008 | 94.2 mm (3.7 in) |
| 2009 | 73.0 mm (2.9 in) |
| 2010 | 76.6 mm (3.0 in) |
| 2011 | 83.8 mm (3.3 in) |
| 2012 | 58.0 mm (2.3 in) |
| 2013 | 71.2 mm (2.8 in) |
| 2014 | 77.0 mm (3.0 in) |
| 2015 | 89.6 mm (3.5 in) |
| 2016 | 77.4 mm (3.0 in) |
| 2017 | 87.0 mm (3.4 in) |
| 2018 | 91.8 mm (3.6 in) |
| 2019 | 80.8 mm (3.2 in) |
| 2020 | 58.8 mm (2.3 in) |
| 2021 | 77.4 mm (3.0 in) |
| 2022 | 61.8 mm (2.4 in) |
| 2023 | 123.4 mm (4.9 in) |
| 2024 | 90.6 mm (3.6 in) |
| 2025 | 78.8 mm (3.1 in) |
| 2026 | 62.6 mm (2.5 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1944 | 19 days |
| 1945 | 30 days |
| 1946 | 65 days |
| 1947 | 64 days |
| 1948 | 83 days |
| 1949 | 42 days |
| 1950 | 75 days |
| 1951 | 34 days |
| 1952 | 39 days |
| 1953 | 55 days |
| 1954 | 80 days |
| 1955 | 38 days |
| 1956 | 59 days |
| 1957 | 57 days |
| 1958 | 66 days |
| 1959 | 32 days |
| 1960 | 46 days |
| 1961 | 31 days |
| 1962 | 50 days |
| 1963 | 34 days |
| 1964 | 54 days |
| 1965 | 50 days |
| 1966 | 35 days |
| 1967 | 43 days |
| 1968 | 32 days |
| 1969 | 54 days |
| 1970 | 47 days |
| 1971 | 33 days |
| 1972 | 83 days |
| 1973 | 67 days |
| 1974 | 58 days |
| 1975 | 79 days |
| 1976 | 43 days |
| 1977 | 36 days |
| 1978 | 36 days |
| 1979 | 51 days |
| 1980 | 44 days |
| 1981 | 40 days |
| 1982 | 40 days |
| 1983 | 36 days |
| 1984 | 52 days |
| 1985 | 40 days |
| 1986 | 36 days |
| 1987 | 64 days |
| 1988 | 82 days |
| 1989 | 40 days |
| 1990 | 27 days |
| 1991 | 55 days |
| 1992 | 31 days |
| 1993 | 46 days |
| 1994 | 88 days |
| 1995 | 53 days |
| 1996 | 44 days |
| 1997 | 53 days |
| 1998 | 52 days |
| 1999 | 43 days |
| 2000 | 38 days |
| 2001 | 41 days |
| 2002 | 64 days |
| 2003 | 32 days |
| 2004 | 54 days |
| 2005 | 26 days |
| 2006 | 28 days |
| 2007 | 37 days |
| 2008 | 51 days |
| 2009 | 41 days |
| 2010 | 81 days |
| 2011 | 65 days |
| 2012 | 59 days |
| 2013 | 56 days |
| 2014 | 88 days |
| 2015 | 37 days |
| 2016 | 48 days |
| 2017 | 39 days |
| 2018 | 91 days |
| 2019 | 47 days |
| 2020 | 52 days |
| 2021 | 37 days |
| 2022 | 38 days |
| 2023 | 61 days |
| 2024 | 54 days |
| 2025 | 47 days |
| 2026 | 40 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
81 years, 1945 to 2025A day with at least 44.4 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 124.9 mm (4.9 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 44.4 mm (1.7 in) | |
| 5 years | 58.2 mm (2.3 in) | |
| 10 years | 69.8 mm (2.7 in) | |
| 25 years | 88.1 mm (3.5 in) | |
| 50 years | 104.9 mm (4.1 in) | |
| 100 years | 124.9 mm (4.9 in) | Longer than the 81 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, 81 years of values from 1945 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: 132.0 mm (5.2 in) in 1992; 99.0 mm (3.9 in) in 2001; 97.2 mm (3.8 in) in 1987.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Perth Airport, at 1970 and 1981. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1970 ran 0.4 C (0.7 F) lower than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1981 ran 0.2 C (0.4 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1970 | -0.4 | -0.7 | possible | 5 |
| 1981 | +0.2 | +0.4 | likely | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Perth Airport had a mean temperature of 19.3 C (66.7 F) and 675.4 mm (26.6 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Geraldton Airport (Australia, 369 km away), Jurien Bay (Australia, 201 km away) and University of Queensland Gatto (Australia, 3,528 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Geraldton Airport | Australia | 369 km (229 mi) | 19.7 C (67.5 F) | 475.4 mm (18.7 in) | 1.19 |
| Jurien Bay | Australia | 201 km (125 mi) | 18.8 C (65.8 F) | 579.3 mm (22.8 in) | 1.25 |
| University of Queensland Gatto | Australia | 3,528 km (2,192 mi) | 19.9 C (67.8 F) | 828.4 mm (32.6 in) | 1.31 |
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
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).