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Portland Climate

Portland Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
21.9 22.5 21.1 18.5 15.9 13.7 13.1 14.0 15.3 16.8 18.7 20.1 17.6
Mean Min (°C)
12.2 12.7 11.7 9.8 8.4 6.9 6.3 6.7 7.5 8.3 9.8 10.9 9.2
Mean Rain (mm)
36.6 26.6 47.0 58.7 79.2 112.6 110.3 108.1 85.1 61.6 52.5 50.7 831.7
Median Rain (mm)
27.0 17.4 35.4 56.2 64.8 104.8 106.9 98.1 82.6 54.6 42.4 41.8 800.0
Mean Rain Days
10.8 8.8 13.5 18.1 21.1 23.0 24.1 23.6 20.7 18.8 14.6 13.3 208.2

Portland Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
42.1 43.1 40.5 34.2 26.8 20.6 18.7 24.4 31.0 32.4 35.5 40.9 43.1
Low Max (°C)
13.9 14.5 13.8 10.9 9.6 9.3 8.5 9.1 9.4 10.3 11.3 12.4 8.5
High Min (°C)
25.5 25.2 22.5 21.1 15.3 14.0 12.8 13.8 16.6 17.5 18.7 20.7 25.5
Low Min (°C)
1.6 4.1 2.5 1.2 0.0 -1.5 -2.3 -0.7 0.0 -0.9 1.5 0.9 -2.3
High Rain (mm)
72.0 45.4 77.2 50.0 59.4 71.2 36.8 61.0 37.0 55.0 68.6 61.0 77.2

Portland Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
24.2 26.3 24.7 21.2 17.2 14.9 14.1 15.7 17.3 18.5 22.3 22.5 18.6
Low Mn. Max (°C)
19.1 20.1 19.3 16.2 14.5 12.3 11.9 12.4 12.8 14.7 16.3 17.1 16.7
High Mn. Min (°C)
13.9 15.1 13.8 11.5 10.6 8.7 7.7 8.2 9.5 9.8 12.3 13.0 10.0
Low Mn. Min (°C)
10.2 10.5 10.4 8.5 6.9 4.5 4.6 5.7 6.4 6.2 8.6 8.5 8.3
High Rain (mm)
149.6 84.8 175.2 114.4 197.0 202.4 219.0 255.0 134.4 123.4 113.4 125.0 1157.2
Low Rain (mm)
3.8 1.6 4.6 11.0 23.6 52.4 55.6 26.2 37.2 19.8 16.2 13.8 583.6

Portland Annual Temperatures & Rainfall

PORTLAND (CASHMORE AIRPORT)

Mean daily minimum temp
Mean daily maximum temp
Highest/lowest on record
Highest/lowest on record
Mean monthly rainfall

Portland Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40°C
0.3 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4
≥ 35°C
1.4 1.5 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.5 3.9
≥ 30°C
3.5 3.5 2.5 0.4 0.0 0.0 0.0 0.0 0.0 0.3 1.3 1.7 12.9
≤ 2°C
0.0 0.0 0.0 0.1 0.6 1.7 1.5 0.9 0.5 0.2 0.1 0.0 5.5
≤ 0°C
0.0 0.0 0.0 0.0 0.0 0.2 0.3 0.1 0.0 0.1 0.0 0.0 0.7

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

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
27.8 29.4 27.2 22.8 18.2 15.3 14.8 16.4 18.1 21.4 23.8 25.0 22.0
Low Max
17.5 17.9 16.8 14.9 13.6 11.9 11.3 11.7 12.4 13.3 14.6 16.1 12.9
High Min
15.0 15.4 14.5 12.6 11.1 9.6 8.9 9.1 10.0 11.0 12.6 13.8 13.0
Low Min
9.0 9.3 8.5 6.6 5.2 3.9 3.6 4.2 4.7 5.3 7.0 7.6 5.5

Portland Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
32 32 32 32 32 33 33 33 33 33 33 33 32.3
Earliest Entry
1983 1983 1983 1983 1983 1982 1982 1982 1982 1982 1982 1982 1982
Latest Entry
2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014
Years of Maxima
32 32 32 32 32 33 33 33 33 33 33 33 32.4
Earliest Entry
1983 1983 1983 1983 1983 1982 1982 1982 1982 1982 1982 1982 1982
Latest Entry
2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014
Years of Rainfall
32 32 32 32 32 33 33 33 33 33 33 33 32.5
Earliest Entry
1983 1983 1983 1983 1983 1982 1982 1982 1982 1982 1982 1982 1982
Latest Entry
2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014

Station Details

PORTLAND (CASHMORE AIRPORT)
South West, Victoria
38.3148°S 141.4705°E 81m AMSL
Commenced 1982
Display Your Local Weather

Weather News

Farmers across Tasmania wake up to pastures and vegetable paddocks covered in snow

08:30 EST

Rare snowfalls have blanketed the most unlikely parts of Tasmania, with farmers along the north-west coast waking up to white paddocks.

Lake Macquarie school rallies for Dungog woman

06:19 EST

A Lake Macquarie school has rallied together to raise thousands of dollars for a Dungog woman who is trying to get back on her feet after the April super storm.

Tasmanian snow: Two men rescued from snowbound car in central Tasmania; more snowfalls expected

00:44 EST

Two men stranded for nearly 24 hours with their sports car in deep snow at Mount Field, about 75 kilometres north-west of Hobart, have been rescued.