Frost Dates for Salmon Gums Res.Stn., WA

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. October 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. May 26
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 25
First Fall Frost May 16

Hard Freeze (−2°C)

Last Spring Hard Freeze August 15
First Fall Hard Freeze June 12
-32.99°N, 121.62°W © OpenStreetMap

Growing Season

226 Days October 12 to May 26

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°
23°
High: 31°C
Avg: 23°C
Low: 14°C
Jan
22°
High: 30°C
Avg: 22°C
Low: 15°C
Feb
20°
High: 27°C
Avg: 20°C
Low: 13°C
Mar
18°
High: 24°C
Avg: 18°C
Low: 10°C
Apr
14°
High: 21°C
Avg: 14°C
Low: 7°C
May
12°
High: 18°C
Avg: 12°C
Low: 6°C
Jun
11°
High: 17°C
Avg: 11°C
Low: 5°C
Jul
12°
High: 18°C
Avg: 12°C
Low: 5°C
Aug
13°
High: 21°C
Avg: 13°C
Low: 6°C
Sep
16°
High: 25°C
Avg: 16°C
Low: 8°C
Oct
19°
High: 27°C
Avg: 19°C
Low: 11°C
Nov
21°
High: 30°C
Avg: 21°C
Low: 12°C
Dec
Avg High Avg Temp Avg Low

Precipitation

0 mm 10 mm 20 mm 30 mm 40 mm
36 mm
35.6 mm
Jan
23 mm
22.9 mm
Feb
36 mm
35.6 mm
Mar
23 mm
22.9 mm
Apr
18 mm
17.8 mm
May
25 mm
25.4 mm
Jun
25 mm
25.4 mm
Jul
28 mm
27.9 mm
Aug
23 mm
22.9 mm
Sep
18 mm
17.8 mm
Oct
23 mm
22.9 mm
Nov
10 mm
10.2 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec14h13h12h11h10.5h10h10h11h12h13h13.5h14h
Jan: 5:01 AM – 6:59 PM · 13h 57m
Feb: 5:25 AM – 6:35 PM · 13h 11m
Mar: 5:53 AM – 6:07 PM · 12h 15m
Apr: 6:25 AM – 5:35 PM · 11h 11m
May: 6:51 AM – 5:09 PM · 10h 18m
Jun: 7:05 AM – 4:55 PM · 9h 50m
Jul: 6:59 AM – 5:01 PM · 10h 01m
Aug: 6:37 AM – 5:23 PM · 10h 47m
Sep: 6:06 AM – 5:54 PM · 11h 48m
Oct: 5:35 AM – 6:25 PM · 12h 50m
Nov: 5:08 AM – 6:52 PM · 13h 44m
Dec: 4:55 AM – 7:05 PM · 14h 10m
Daylight Longest: 14h 11m · Shortest: 9h 49m

Nearby Stations

Esperance Aero, WA Norseman Aero, WA September 18 - June 3 Esperance, WA Ravensthorpe, WA Hopetoun North, WA

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