Frost Dates for Forrest, WA
Elevation: 159 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 9
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 13
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 20
First Fall Frost
June 7
Growing Season
308 Days
August 9 to June 13
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 10a
Avg. annual minimum: −1 to 2°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 | 33° | 25° | 17° |
| February | 32° | 24° | 17° |
| March | 29° | 22° | 15° |
| April | 27° | 19° | 12° |
| May | 22° | 16° | 9° |
| June | 19° | 13° | 6° |
| July | 19° | 12° | 5° |
| August | 21° | 13° | 6° |
| September | 25° | 16° | 8° |
| October | 28° | 19° | 11° |
| November | 30° | 22° | 13° |
| December | 32° | 23° | 15° |
Precipitation
0 mm
10 mm
20 mm
30 mm
40 mm
Precipitation table
| Month | Precipitation |
|---|---|
| January | 15 |
| February | 30 |
| March | 13 |
| April | 5 |
| May | 3 |
| June | 3 |
| July | 8 |
| August | 0 |
| September | 3 |
| October | 3 |
| November | 15 |
| December | 23 |
Sunrise / Sunset
Daylight
Longest: 14h 00m · Shortest: 9h 60m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 5:06 AM | 6:54 PM | 13h 48m |
| February | 5:28 AM | 6:32 PM | 13h 05m |
| March | 5:53 AM | 6:07 PM | 12h 13m |
| April | 6:23 AM | 5:37 PM | 11h 15m |
| May | 6:47 AM | 5:13 PM | 10h 26m |
| June | 6:60 AM | 5:00 PM | 10h 01m |
| July | 6:54 AM | 5:06 PM | 10h 11m |
| August | 6:34 AM | 5:26 PM | 10h 53m |
| September | 6:05 AM | 5:55 PM | 11h 49m |
| October | 5:37 AM | 6:23 PM | 12h 46m |
| November | 5:12 AM | 6:48 PM | 13h 36m |
| December | 5:00 AM | 6:60 PM | 13h 59m |
Nearby Stations
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