Frost Dates for Portland (Cashmore Airport), VIC

Frost Dates

Last Spring Frost (50%) iA 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%) iA 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. June 20
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30% Probability iOnly 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°N, 141.47°W © OpenStreetMap

Growing Season

312 Days August 12 to June 20

USDA Hardiness Zone iHardiness 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: 30 to 35°F (−1 to 2°C)

Learn more

Köppen Climate iThe 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

5° 10° 15° 20° 25°
17°
High: 22°C
Avg: 17°C
Low: 13°C
Jan
18°
High: 23°C
Avg: 18°C
Low: 13°C
Feb
16°
High: 21°C
Avg: 16°C
Low: 12°C
Mar
14°
High: 19°C
Avg: 14°C
Low: 10°C
Apr
12°
High: 16°C
Avg: 12°C
Low: 8°C
May
10°
High: 14°C
Avg: 10°C
Low: 7°C
Jun
10°
High: 13°C
Avg: 10°C
Low: 6°C
Jul
10°
High: 14°C
Avg: 10°C
Low: 7°C
Aug
11°
High: 15°C
Avg: 11°C
Low: 7°C
Sep
13°
High: 17°C
Avg: 13°C
Low: 8°C
Oct
14°
High: 19°C
Avg: 14°C
Low: 10°C
Nov
16°
High: 20°C
Avg: 16°C
Low: 11°C
Dec
Avg High Avg Temp Avg Low

Precipitation

0 mm 50 mm 100 mm
36 mm
35.6 mm
Jan
23 mm
22.9 mm
Feb
43 mm
43.2 mm
Mar
64 mm
63.5 mm
Apr
84 mm
83.8 mm
May
109 mm
109.2 mm
Jun
109 mm
109.2 mm
Jul
112 mm
111.8 mm
Aug
94 mm
94.0 mm
Sep
69 mm
68.6 mm
Oct
61 mm
61.0 mm
Nov
46 mm
45.7 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec14.5h13.5h12.5h11h10h9.5h9.5h10.5h12h13h14h14.5h
Jan: 4:48 AM – 7:12 PM · 14h 23m
Feb: 5:17 AM – 6:43 PM · 13h 26m
Mar: 5:51 AM – 6:09 PM · 12h 18m
Apr: 6:30 AM – 5:30 PM · 10h 60m
May: 7:02 AM – 4:58 PM · 9h 55m
Jun: 7:20 AM – 4:40 PM · 9h 21m
Jul: 7:13 AM – 4:47 PM · 9h 35m
Aug: 6:45 AM – 5:15 PM · 10h 31m
Sep: 6:07 AM – 5:53 PM · 11h 46m
Oct: 5:29 AM – 6:31 PM · 13h 01m
Nov: 4:56 AM – 7:04 PM · 14h 07m
Dec: 4:40 AM – 7:20 PM · 14h 39m
Daylight Longest: 14h 40m · Shortest: 9h 20m

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

Plan Your Garden with Planter

Now that you know your frost dates, use Planter to plan your veggie garden! Planter is an easy drag-and-drop garden planner with personalized planting schedules.

Try Planter For Free

Available everywhere: iOS, Android, web, and more!

Planter app garden planner preview