Frost Dates for Clatskanie, OR

Frost Dates

Last Spring Frost (50%) iA 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. April 24
First Fall Frost (50%) iA 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. October 24
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30% Probability iOnly 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 May 1
First Fall Frost October 15

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze March 25
First Fall Hard Freeze November 9
46.11°N, -123.21°W © OpenStreetMap

Growing Season

183 Days April 24 to October 24

USDA Hardiness Zone iHardiness 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 8b

Learn more

Temperature

30° 50° 70°
40°
High: 47°
Avg: 40°
Low: 33°
Jan
42°
High: 50°
Avg: 42°
Low: 33°
Feb
45°
High: 55°
Avg: 45°
Low: 35°
Mar
49°
High: 59°
Avg: 49°
Low: 38°
Apr
54°
High: 65°
Avg: 54°
Low: 44°
May
59°
High: 69°
Avg: 59°
Low: 49°
Jun
63°
High: 75°
Avg: 63°
Low: 52°
Jul
64°
High: 76°
Avg: 64°
Low: 52°
Aug
60°
High: 72°
Avg: 60°
Low: 48°
Sep
51°
High: 62°
Avg: 51°
Low: 41°
Oct
44°
High: 52°
Avg: 44°
Low: 36°
Nov
39°
High: 46°
Avg: 39°
Low: 33°
Dec
32°F
Avg High Avg Temp Avg Low Light Frost (32°F)

Precipitation

0" 2" 4" 6" 6.7"
6.2"
6.19"
Jan
5.0"
5.03"
Feb
5.0"
5.01"
Mar
4.0"
3.95"
Apr
3.7"
3.66"
May
2.5"
2.47"
Jun
1.5"
1.50"
Jul
2.0"
2.05"
Aug
2.9"
2.90"
Sep
4.1"
4.07"
Oct
5.9"
5.92"
Nov
6.7"
6.69"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h12h13h15h16h15h14h12h11h9h8h
Jan: 7:35 AM – 4:25 PM · 8h 49m
Feb: 6:57 AM – 5:03 PM · 10h 06m
Mar: 6:12 AM – 5:48 PM · 11h 37m
Apr: 5:20 AM – 6:40 PM · 13h 19m
May: 4:37 AM – 7:23 PM · 14h 46m
Jun: 4:14 AM – 7:46 PM · 15h 33m
Jul: 4:23 AM – 7:37 PM · 15h 14m
Aug: 5:01 AM – 6:59 PM · 13h 58m
Sep: 5:51 AM – 6:09 PM · 12h 18m
Oct: 6:41 AM – 5:19 PM · 10h 39m
Nov: 7:25 AM – 4:35 PM · 9h 11m
Dec: 7:47 AM – 4:13 PM · 8h 27m
Daylight Longest: 15h 34m · Shortest: 8h 26m

Nearby Stations

Longview, WAApril 8 - November 5 Vernonia #2, ORMay 8 - October 1 Saint Helens Rfd, OR April 18 - November 7 Grays Rvr Hatchery, WA April 27 - October 22 Scappoose Ind AP, OR April 10 - November 2 Toledo Faa AP, WA April 5 - October 25

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