Frost Dates for Roseworthy Aws, SA

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. September 24
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 15
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 October 9
First Fall Frost June 11
-34.51°N, 138.68°W © OpenStreetMap

Growing Season

264 Days September 24 to June 15

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 9b

Avg. annual minimum: 25 to 30°F (−4 to −1°C)

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

BSk Cold Semi-Arid (Steppe)

Cool to cold with low rainfall and wide temperature swings. Common in the western Great Plains and central Asia. Short growing seasons benefit from season extension techniques.

Köppen climate map

Temperature

5° 15° 25° 35°
24°
High: 32°C
Avg: 24°C
Low: 15°C
Jan
23°
High: 31°C
Avg: 23°C
Low: 15°C
Feb
21°
High: 28°C
Avg: 21°C
Low: 13°C
Mar
17°
High: 24°C
Avg: 17°C
Low: 11°C
Apr
14°
High: 20°C
Avg: 14°C
Low: 9°C
May
11°
High: 16°C
Avg: 11°C
Low: 6°C
Jun
11°
High: 16°C
Avg: 11°C
Low: 6°C
Jul
11°
High: 17°C
Avg: 11°C
Low: 5°C
Aug
13°
High: 20°C
Avg: 13°C
Low: 6°C
Sep
16°
High: 24°C
Avg: 16°C
Low: 8°C
Oct
19°
High: 28°C
Avg: 19°C
Low: 11°C
Nov
21°
High: 30°C
Avg: 21°C
Low: 13°C
Dec
Avg High Avg Temp Avg Low

Precipitation

0 mm 20 mm 40 mm
10 mm
10.2 mm
Jan
15 mm
15.2 mm
Feb
8 mm
7.6 mm
Mar
20 mm
20.3 mm
Apr
36 mm
35.6 mm
May
36 mm
35.6 mm
Jun
41 mm
40.6 mm
Jul
41 mm
40.6 mm
Aug
43 mm
43.2 mm
Sep
18 mm
17.8 mm
Oct
13 mm
12.7 mm
Nov
15 mm
15.2 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec14h13h12.5h11h10h9.5h10h10.5h12h13h14h14.5h
Jan: 4:58 AM – 7:02 PM · 14h 04m
Feb: 5:23 AM – 6:37 PM · 13h 15m
Mar: 5:52 AM – 6:08 PM · 12h 16m
Apr: 6:26 AM – 5:34 PM · 11h 08m
May: 6:54 AM – 5:06 PM · 10h 12m
Jun: 7:09 AM – 4:51 PM · 9h 42m
Jul: 7:03 AM – 4:57 PM · 9h 54m
Aug: 6:39 AM – 5:21 PM · 10h 42m
Sep: 6:06 AM – 5:54 PM · 11h 48m
Oct: 5:33 AM – 6:27 PM · 12h 53m
Nov: 5:05 AM – 6:55 PM · 13h 50m
Dec: 4:51 AM – 7:09 PM · 14h 18m
Daylight Longest: 14h 19m · Shortest: 9h 41m

Nearby Stations

Rosedale (Turretfield Research, SA September 13 - June 11 Edinburgh Raaf, SA July 31 - June 11 Nuriootpa Viticultural, SA August 30 - May 28 Parafield Airport, SA August 6 - June 15 Mount Crawford (Mt Crawford Aw, SA Adelaide (Kent Town), SA

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