Frost Dates for Roseworthy Aws, SA

Elevation: 65 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. September 24
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 15

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 October 9
First Fall Frost June 11
34.51°S, 138.68°E © OpenStreetMap

Growing Season

264 Days September 24 to June 15

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 9b

Avg. annual minimum: −4 to −1°C

Learn more

Köppen Climate

The 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

Avg High Avg Temp Avg Low
Temperature table
Average monthly temperatures (°C)
Month Avg High Avg Temp Avg Low
January32°24°15°
February31°23°15°
March28°21°13°
April24°17°11°
May20°14°9°
June16°11°6°
July16°11°6°
August17°11°5°
September20°13°6°
October24°16°8°
November28°19°11°
December30°21°13°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January10
February15
March8
April20
May36
June36
July41
August41
September43
October18
November13
December15

Sunrise / Sunset

Daylight Longest: 14h 19m · Shortest: 9h 41m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January4:58 AM7:02 PM14h 04m
February5:23 AM6:37 PM13h 15m
March5:52 AM6:08 PM12h 16m
April6:26 AM5:34 PM11h 08m
May6:54 AM5:06 PM10h 12m
June7:09 AM4:51 PM9h 42m
July7:03 AM4:57 PM9h 54m
August6:39 AM5:21 PM10h 42m
September6:06 AM5:54 PM11h 48m
October5:33 AM6:27 PM12h 53m
November5:05 AM6:55 PM13h 50m
December4:51 AM7:09 PM14h 18m

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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