Frost Dates for Warburton Airfield, WA
Elevation: 459 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.
August 7
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 19
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
August 13
First Fall Frost
June 15
Growing Season
316 Days
August 7 to June 19
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.
BWh
Hot Desert
Very hot and extremely dry with minimal rainfall. Irrigation is essential for any gardening. Heat-tolerant crops and desert-adapted plants thrive; shade structures help in peak summer.
Temperature
5°
15°
25°
35°
Avg High
Avg Temp
Avg Low
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | 38° | 31° | 24° |
| February | 37° | 30° | 23° |
| March | 34° | 27° | 21° |
| April | 30° | 23° | 16° |
| May | 25° | 18° | 11° |
| June | 21° | 14° | 7° |
| July | 21° | 14° | 6° |
| August | 24° | 16° | 7° |
| September | 29° | 20° | 12° |
| October | 33° | 25° | 17° |
| November | 35° | 27° | 20° |
| December | 37° | 29° | 22° |
Precipitation
0 mm
20 mm
40 mm
60 mm
Precipitation table
| Month | Precipitation |
|---|---|
| January | 41 |
| February | 43 |
| March | 30 |
| April | 13 |
| May | 5 |
| June | 8 |
| July | 3 |
| August | 0 |
| September | 3 |
| October | 18 |
| November | 30 |
| December | 51 |
Sunrise / Sunset
Daylight
Longest: 13h 38m · Shortest: 10h 22m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 5:16 AM | 6:44 PM | 13h 28m |
| February | 5:33 AM | 6:27 PM | 12h 53m |
| March | 5:54 AM | 6:06 PM | 12h 11m |
| April | 6:19 AM | 5:41 PM | 11h 23m |
| May | 6:38 AM | 5:22 PM | 10h 43m |
| June | 6:49 AM | 5:11 PM | 10h 22m |
| July | 6:45 AM | 5:15 PM | 10h 31m |
| August | 6:28 AM | 5:32 PM | 11h 05m |
| September | 6:04 AM | 5:56 PM | 11h 51m |
| October | 5:41 AM | 6:19 PM | 12h 38m |
| November | 5:21 AM | 6:39 PM | 13h 18m |
| December | 5:11 AM | 6:49 PM | 13h 38m |
Plan Your Garden with Planter
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