Frost Dates for Butler, WA
Based on data from Gingin Aero weather station, 16 miles away
Elevation: 33 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 15
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 2
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 4
First Fall Frost
May 15
Growing Season
291 Days
August 15 to June 2
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.
Csa
Hot-Summer Mediterranean
Hot, dry summers and mild, wet winters. Classic Mediterranean climate ideal for grapes, olives, tomatoes, and herbs. Summer irrigation is usually necessary.
Temperature
5°
15°
25°
35°
Avg High
Avg Temp
Avg Low
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | 33° | 25° | 16° |
| February | 33° | 25° | 17° |
| March | 31° | 23° | 15° |
| April | 27° | 19° | 12° |
| May | 23° | 16° | 9° |
| June | 20° | 13° | 7° |
| July | 18° | 12° | 6° |
| August | 19° | 13° | 7° |
| September | 21° | 14° | 7° |
| October | 24° | 17° | 9° |
| November | 28° | 20° | 12° |
| December | 31° | 23° | 14° |
Precipitation
0 mm
50 mm
100 mm
150 mm
Precipitation table
| Month | Precipitation |
|---|---|
| January | 13 |
| February | 10 |
| March | 15 |
| April | 20 |
| May | 79 |
| June | 109 |
| July | 135 |
| August | 117 |
| September | 81 |
| October | 18 |
| November | 8 |
| December | 3 |
Sunrise / Sunset
Daylight
Australian Western Standard Time (AWST)
Longest: 14h 03m · Shortest: 9h 57m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 5:31 AM | 7:21 PM | 13h 50m |
| February | 5:58 AM | 7:04 PM | 13h 06m |
| March | 6:19 AM | 6:33 PM | 12h 14m |
| April | 6:40 AM | 5:53 PM | 11h 13m |
| May | 7:01 AM | 5:25 PM | 10h 24m |
| June | 7:18 AM | 5:16 PM | 9h 58m |
| July | 7:18 AM | 5:26 PM | 10h 08m |
| August | 6:55 AM | 5:46 PM | 10h 51m |
| September | 6:16 AM | 6:06 PM | 11h 49m |
| October | 5:38 AM | 6:25 PM | 12h 48m |
| November | 5:13 AM | 6:51 PM | 13h 38m |
| December | 5:11 AM | 7:14 PM | 14h 02m |
Nearby Stations
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