Frost Dates for Portland (Cashmore Airport), VIC

Elevation: 81 m

Frost Dates

Last Spring Frost (50%) A 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. August 12
First Fall Frost (50%) A 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. June 20

30% Probability

Only a 30% chance of frost remaining by this date. Use these dates for a safer planting window, especially for tender plants sensitive to cold.
Last Spring Frost August 28
First Fall Frost June 16
38.31°S, 141.47°E © OpenStreetMap

Growing Season

312 Days August 12 to June 20

USDA Hardiness Zone

Hardiness zones indicate which perennial plants can survive winter in your area. For annual vegetables, frost dates and growing season length matter more than hardiness zone.
Zone 10a

Avg. annual minimum: −1 to 2°C

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Csb Warm-Summer Mediterranean

Warm, dry summers and mild, wet winters. Similar to hot-summer Mediterranean but cooler. Great for a wide range of vegetables and fruit trees with moderate water needs.

Köppen climate map

Temperature

Avg High Avg Temp Avg Low
Temperature table
Average monthly temperatures (°C)
Month Avg High Avg Temp Avg Low
January22°17°13°
February23°18°13°
March21°16°12°
April19°14°10°
May16°12°8°
June14°10°7°
July13°10°6°
August14°10°7°
September15°11°7°
October17°13°8°
November19°14°10°
December20°16°11°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January36
February23
March43
April64
May84
June109
July109
August112
September94
October69
November61
December46

Sunrise / Sunset

Daylight Australian Eastern Time (AET) Longest: 14h 40m · Shortest: 9h 20m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Australian Eastern Time (AET))
Month Sunrise Sunset Daylight
January6:32 AM8:55 PM14h 23m
February7:06 AM8:32 PM13h 26m
March7:35 AM7:53 PM12h 18m
April7:04 AM6:04 PM10h 60m
May7:33 AM5:28 PM9h 55m
June7:54 AM5:15 PM9h 21m
July7:52 AM5:27 PM9h 35m
August7:23 AM5:54 PM10h 31m
September6:36 AM6:22 PM11h 46m
October6:49 AM7:50 PM13h 01m
November6:16 AM8:23 PM14h 07m
December6:10 AM8:50 PM14h 39m

Nearby Stations

Cape Nelson Lighthouse, VIC Port Fairy Aws, VIC Casterton Showgrounds, VIC September 17 - May 22 Warrnambool Airport Ndb, VIC August 23 - June 8 Mount Gambier Aero, SA August 22 - June 6 Hamilton Airport, VIC September 7 - June 3

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