Portland Long-term Averages

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
Mean Max (°C)	21.2	20.6	20.0	18.2	16.0	14.2	13.7	14.4	15.6	17.1	18.1	19.7	17.3
Mean Min (°C)	15.4	15.4	14.3	12.3	10.4	8.8	8.3	8.6	9.5	10.6	11.9	13.6	11.6
Mean Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-
Median Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-
Mean Rain Days	-	-	-	-	-	-	-	-	-	-	-	-	-

Portland Daily Records

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Max (°C)	40.3	37.2	38.5	33.3	25.6	18.6	18.4	22.6	28.6	33.2	35.9	43.5	43.5
Low Max (°C)	15.5	15.9	14.9	13.0	11.6	9.6	10.0	10.1	10.5	12.0	12.3	13.8	9.6
High Min (°C)	21.7	22.4	19.9	17.6	17.5	14.8	13.0	13.4	15.6	18.6	20.6	18.3	22.4
Low Min (°C)	9.6	8.1	6.1	5.2	3.0	2.9	2.2	2.7	3.0	3.5	6.5	7.0	2.2
High Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-

Portland Monthly Records

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Mn. Max (°C)	22.6	22.2	22.3	19.5	17.2	14.9	14.2	16.6	17.3	19.9	20.6	21.1	17.9
Low Mn. Max (°C)	19.8	18.8	18.4	16.3	14.7	13.7	12.8	12.9	14.3	15.8	16.3	18.5	16.8
High Mn. Min (°C)	16.5	16.9	16.0	13.4	11.5	10.2	9.4	9.6	10.9	11.6	12.8	14.5	11.9
Low Mn. Min (°C)	14.4	14.1	13.1	11.6	9.4	7.3	7.3	7.5	8.4	9.7	10.5	12.6	11.0
High Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-
Low Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-

Portland Annual Temperatures & Rainfall

Portland Average Number of Days With Temperatures

	Jan	Feb	Mar	Apr	Oct	Nov	Dec	Ann
≥ 40°C	0.1	0.0	0.0	0.0	0.0	0.0	0.1	0.2
≥ 35°C	1.1	0.3	0.4	0.0	0.0	0.1	0.6	2.5
≥ 30°C	2.0	1.5	1.2	0.2	0.6	0.9	1.6	8.2
≤ 2°C	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
≤ 0°C	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Portland 'per Week' Values (14th/86th Percentiles)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Max	-	-	-	-	-	-	-	-	-	-	-	-	-
Low Max	-	-	-	-	-	-	-	-	-	-	-	-	-
High Min	-	-	-	-	-	-	-	-	-	-	-	-	-
Low Min	-	-	-	-	-	-	-	-	-	-	-	-	-

Portland Data Availability

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
Years of Minima	14	14	14	13	14	14	14	14	14	14	13	14	13.0
Earliest Entry	2012	2012	2012	2011	2011	2011	2011	2011	2011	2011	2011	2011	2011
Latest Entry	2025	2025	2025	2025	2024	2024	2024	2024	2024	2024	2024	2024	2025
Years of Maxima	14	14	14	13	14	14	14	14	14	14	13	14	13.0
Earliest Entry	2012	2012	2012	2011	2011	2011	2011	2011	2011	2011	2011	2011	2011
Latest Entry	2025	2025	2025	2025	2024	2024	2024	2024	2024	2024	2024	2024	2025
Years of Rainfall	-	-	-	-	-	-	-	-	-	-	-	-	-
Earliest Entry	-	-	-	-	-	-	-	-	-	-	-	-	-
Latest Entry	-	-	-	-	-	-	-	-	-	-	-	-	-

Station Details

PORTLAND NTC AWS
South West, Victoria

38.3439°S 141.6136°E 0m AMSL
Commenced 1991

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Weather News

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High chance of tropical cyclone near Australia next week

12:03 AEST A late-season tropical cyclone could form near northern Australia next week, which would make this Australia’s most active cyclone season in six years.