Portland Long-term Averages

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
Mean Max (°C)	21.1	20.6	20.0	18.2	16.0	14.2	13.7	14.4	15.6	17.1	18.0	19.6	17.3
Mean Min (°C)	15.3	15.4	14.2	12.3	10.4	8.8	8.3	8.6	9.5	10.6	11.9	13.5	11.5
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	5.7	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	21.0	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	0.2	0.0	0.0	0.0	0.0	0.0	0.1	0.2
≥ 35°C	1.2	0.2	0.4	0.0	0.0	0.1	0.6	2.5
≥ 30°C	2.0	1.4	1.2	0.2	0.6	0.9	1.5	8.3
≤ 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	13	13	13	13	14	14	14	14	14	13	12	13	12.0
Earliest Entry	2012	2012	2012	2011	2011	2011	2011	2011	2011	2011	2011	2011	2011
Latest Entry	2024	2024	2024	2024	2024	2024	2024	2024	2024	2024	2023	2023	2024
Years of Maxima	13	13	13	13	14	14	14	14	14	13	12	13	12.0
Earliest Entry	2012	2012	2012	2011	2011	2011	2011	2011	2011	2011	2011	2011	2011
Latest Entry	2024	2024	2024	2024	2024	2024	2024	2024	2024	2024	2023	2023	2024
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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