Frost Dates for Cunderdin Airfield, WA
Elevation: 217 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 19
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 11
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
September 30
First Fall Frost
June 4
Growing Season
265 Days
September 19 to June 11
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
Köppen Climate
The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
BSh
Hot Semi-Arid (Steppe)
Hot with low but not negligible rainfall. Less extreme than true desert. Dryland farming techniques and drought-tolerant varieties work well. Mulching and water conservation are key.
Temperature
0°
10°
20°
30°
Avg High
Avg Temp
Avg Low
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | 35° | 26° | 17° |
| February | 34° | 26° | 17° |
| March | 31° | 23° | 16° |
| April | 27° | 19° | 12° |
| May | 22° | 15° | 8° |
| June | 19° | 12° | 6° |
| July | 17° | 11° | 5° |
| August | 18° | 11° | 5° |
| September | 21° | 13° | 5° |
| October | 26° | 17° | 8° |
| November | 30° | 21° | 12° |
| December | 33° | 24° | 15° |
Precipitation
0 mm
20 mm
40 mm
Precipitation table
| Month | Precipitation |
|---|---|
| January | 20 |
| February | 13 |
| March | 8 |
| April | 15 |
| May | 23 |
| June | 28 |
| July | 46 |
| August | 36 |
| September | 18 |
| October | 8 |
| November | 3 |
| December | 0 |
Sunrise / Sunset
Daylight
Longest: 14h 04m · Shortest: 9h 56m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 5:05 AM | 6:55 PM | 13h 51m |
| February | 5:27 AM | 6:33 PM | 13h 07m |
| March | 5:53 AM | 6:07 PM | 12h 14m |
| April | 6:23 AM | 5:37 PM | 11h 13m |
| May | 6:48 AM | 5:12 PM | 10h 23m |
| June | 7:02 AM | 4:58 PM | 9h 57m |
| July | 6:56 AM | 5:04 PM | 10h 08m |
| August | 6:35 AM | 5:25 PM | 10h 50m |
| September | 6:05 AM | 5:55 PM | 11h 49m |
| October | 5:36 AM | 6:24 PM | 12h 48m |
| November | 5:11 AM | 6:49 PM | 13h 39m |
| December | 4:58 AM | 7:02 PM | 14h 03m |
Nearby Stations
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