Weather on December 20 in Perth
Historical weather data for December 20 in Perth, Australia
Based on 54 years of data from PERTH REGIONAL OFFICE
About This Date
December 20th in Perth, Australia typically brings warm winter weather, with average highs around 29°C and lows near 17°C. Over 54 years of records, the warmest December 20th was in 1974 (33°C average), while the coldest was 1997 (17°C) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 15% of December 20th dates historically, with the wettest December 20th recording 1.26" of rain. The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
Planning for December 20th in Perth? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 26°C (79°F) | 16°C (60°F) | 0" |
| 2024 | 35°C (95°F) | 16°C (60°F) | 0" |
| 2023 | 37°C (99°F) | 19°C (67°F) | 0" |
| 2022 | 37°C (99°F) | 21°C (70°F) | 0" |
| 2021 | 32°C (89°F) | 12°C (54°F) | 0" |
| 2020 | 31°C (88°F) | 18°C (64°F) | 0" |
| 2019 | 26°C (78°F) | 17°C (63°F) | 0.18" |
| 2018 | 33°C (92°F) | 17°C (63°F) | 0" |
| 2017 | 29°C (84°F) | 15°C (59°F) | 0" |
| 2016 | 34°C (94°F) | 16°C (61°F) | 0" |
| 2015 | 31°C (87°F) | 16°C (60°F) | 0" |
| 2014 | 27°C (80°F) | 21°C (69°F) | 0" |
| 2013 | 28°C (83°F) | 16°C (61°F) | 0" |
| 2012 | 36°C (96°F) | 17°C (63°F) | 0" |
| 2011 | 31°C (87°F) | 17°C (62°F) | 0" |
| 2010 | 27°C (80°F) | 15°C (59°F) | 0.96" |
| 2009 | 36°C (96°F) | 21°C (70°F) | 0" |
| 2008 | 23°C (74°F) | 18°C (65°F) | 0.06" |
| 2007 | 24°C (76°F) | 15°C (59°F) | 0" |
| 2006 | 26°C (79°F) | 19°C (67°F) | 0" |
| 2005 | 24°C (75°F) | 18°C (64°F) | 0" |
| 2004 | 34°C (94°F) | 17°C (62°F) | 0" |
| 2003 | 24°C (76°F) | 17°C (62°F) | 0" |
| 2002 | 41°C (105°F) | 24°C (76°F) | 0" |
| 2001 | 23°C (74°F) | 13°C (55°F) | 0" |
| 2000 | 23°C (73°F) | 17°C (62°F) | 0" |
| 1999 | 29°C (85°F) | 16°C (60°F) | 0.4" |
| 1998 | 27°C (80°F) | 13°C (56°F) | 0" |
| 1997 | 23°C (74°F) | 12°C (53°F) | 0" |
| 1996 | 33°C (92°F) | 20°C (68°F) | 0.06" |
| 1995 | 23°C (73°F) | 16°C (61°F) | 0.14" |
| 1994 | 26°C (79°F) | 18°C (65°F) | 0" |
| 1993 | 22°C (72°F) | 16°C (61°F) | 0" |
| 1991 | 28°C (82°F) | 14°C (58°F) | 0" |
| 1990 | 24°C (75°F) | 16°C (60°F) | 0" |
| 1989 | 37°C (99°F) | 19°C (66°F) | 0" |
| 1988 | 27°C (80°F) | 17°C (62°F) | 0" |
| 1987 | 32°C (89°F) | 22°C (71°F) | 0" |
| 1986 | 37°C (99°F) | 19°C (67°F) | 0" |
| 1985 | 22°C (71°F) | 14°C (58°F) | 0.02" |
| 1984 | 31°C (87°F) | 20°C (68°F) | 0" |
| 1983 | 26°C (78°F) | 20°C (68°F) | 0" |
| 1982 | 27°C (81°F) | 22°C (71°F) | 0" |
| 1981 | 24°C (76°F) | 15°C (59°F) | 0" |
| 1980 | 22°C (71°F) | 17°C (62°F) | 0" |
| 1979 | 25°C (77°F) | 16°C (60°F) | 0" |
| 1978 | 28°C (83°F) | 19°C (66°F) | 1.26" |
| 1977 | 28°C (82°F) | 17°C (62°F) | 0" |
| 1976 | 26°C (78°F) | 16°C (61°F) | 0" |
| 1975 | 34°C (94°F) | 19°C (66°F) | 0" |
| 1974 | 42°C (108°F) | 23°C (74°F) | 0" |
| 1973 | 25°C (77°F) | 17°C (62°F) | 0" |
| 1972 | 27°C (80°F) | 18°C (65°F) | 0" |
| 1971 | 32°C (90°F) | 15°C (59°F) | 0" |