Frost Dates for Keith, 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 8
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. May 31
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 September 29
First Fall Frost May 21
-36.10°N, 140.36°W © OpenStreetMap

Growing Season

265 Days September 8 to May 31

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°
22°
High: 30°C
Avg: 22°C
Low: 14°C
Jan
22°
High: 30°C
Avg: 22°C
Low: 13°C
Feb
19°
High: 27°C
Avg: 19°C
Low: 12°C
Mar
16°
High: 23°C
Avg: 16°C
Low: 9°C
Apr
13°
High: 19°C
Avg: 13°C
Low: 8°C
May
11°
High: 16°C
Avg: 11°C
Low: 6°C
Jun
11°
High: 15°C
Avg: 11°C
Low: 6°C
Jul
11°
High: 16°C
Avg: 11°C
Low: 6°C
Aug
13°
High: 19°C
Avg: 13°C
Low: 7°C
Sep
15°
High: 22°C
Avg: 15°C
Low: 8°C
Oct
18°
High: 26°C
Avg: 18°C
Low: 10°C
Nov
20°
High: 28°C
Avg: 20°C
Low: 12°C
Dec
Avg High Avg Temp Avg Low

Precipitation

0 mm 20 mm 40 mm 60 mm
15 mm
15.2 mm
Jan
3 mm
2.5 mm
Feb
5 mm
5.1 mm
Mar
20 mm
20.3 mm
Apr
46 mm
45.7 mm
May
58 mm
58.4 mm
Jun
64 mm
63.5 mm
Jul
69 mm
68.6 mm
Aug
56 mm
55.9 mm
Sep
18 mm
17.8 mm
Oct
20 mm
20.3 mm
Nov
23 mm
22.9 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec14h13.5h12.5h11h10h9.5h10h10.5h12h13h14h14.5h
Jan: 4:54 AM – 7:06 PM · 14h 12m
Feb: 5:20 AM – 6:40 PM · 13h 19m
Mar: 5:52 AM – 6:08 PM · 12h 16m
Apr: 6:28 AM – 5:32 PM · 11h 04m
May: 6:57 AM – 5:03 PM · 10h 05m
Jun: 7:13 AM – 4:47 PM · 9h 33m
Jul: 7:07 AM – 4:53 PM · 9h 46m
Aug: 6:41 AM – 5:19 PM · 10h 38m
Sep: 6:06 AM – 5:54 PM · 11h 47m
Oct: 5:32 AM – 6:28 PM · 12h 57m
Nov: 5:01 AM – 6:59 PM · 13h 57m
Dec: 4:47 AM – 7:13 PM · 14h 27m
Daylight Longest: 14h 27m · Shortest: 9h 32m

Nearby Stations

Keith (Munkora), SA November 1 - May 5 Padthaway South, SA September 2 - May 13 Lameroo Comparison, SA August 8 - June 10 Meningie, SAJuly 30 - June 12 Naracoorte Aerodrome, SA October 11 - May 11 Cape Jaffa (The Limestone), SA

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