Frost Dates for Stevenson, WA
Based on data from Cascade Locks weather station, 1 miles away
Elevation: 203 ft
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.
March 24
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.
November 20
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
March 31
First Fall Frost
November 11
Hard Freeze (28°F)
Last Spring Hard Freeze
February 24
First Fall Hard Freeze
December 9
Growing Season
241 Days
March 24 to November 20
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 8a
Avg. annual minimum: 10 to 15°F
Köppen Climate
The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Csb
Warm-Summer Mediterranean
Warm, dry summers and mild, wet winters. Similar to hot-summer Mediterranean but cooler. Great for a wide range of vegetables and fruit trees with moderate water needs.
Temperature
30°
50°
70°
90°
Avg High
Avg Temp
Avg Low
Light Frost (32°F)
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | 42° | 38° | 33° |
| February | 48° | 41° | 34° |
| March | 54° | 45° | 36° |
| April | 61° | 51° | 41° |
| May | 68° | 57° | 47° |
| June | 73° | 63° | 52° |
| July | 80° | 68° | 56° |
| August | 82° | 69° | 57° |
| September | 76° | 64° | 51° |
| October | 63° | 54° | 45° |
| November | 50° | 45° | 39° |
| December | 43° | 38° | 33° |
Precipitation
0"
3"
6"
9"
12"
Precipitation table
| Month | Precipitation |
|---|---|
| January | 10.7 |
| February | 9.0 |
| March | 9.6 |
| April | 7.3 |
| May | 5.5 |
| June | 4.4 |
| July | 2.9 |
| August | 3.5 |
| September | 5.4 |
| October | 8.1 |
| November | 11.0 |
| December | 12.0 |
Sunrise / Sunset
Daylight
Pacific Time (PT)
Longest: 15h 31m · Shortest: 8h 29m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:51 AM | 4:43 PM | 8h 52m |
| February | 7:18 AM | 5:26 PM | 10h 08m |
| March | 7:29 AM | 7:06 PM | 11h 37m |
| April | 6:29 AM | 7:47 PM | 13h 18m |
| May | 5:42 AM | 8:25 PM | 14h 43m |
| June | 5:23 AM | 8:52 PM | 15h 29m |
| July | 5:38 AM | 8:48 PM | 15h 10m |
| August | 6:13 AM | 8:10 PM | 13h 56m |
| September | 6:53 AM | 7:11 PM | 12h 18m |
| October | 7:33 AM | 6:13 PM | 10h 40m |
| November | 7:16 AM | 4:29 PM | 9h 13m |
| December | 7:48 AM | 4:18 PM | 8h 30m |
Nearby Stations
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