Frost Dates for Birch Bay, WA

Based on data from Blaine weather station, 5 miles away

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. March 31
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. November 4
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 April 7
First Fall Frost October 29

Hard Freeze (28°F)

Last Spring Hard Freeze March 5
First Fall Hard Freeze November 19
48.92°N, -122.74°W © OpenStreetMap

Growing Season

218 Days March 31 to November 4

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

Avg. annual minimum: 15 to 20°F (−9 to −7°C)

Learn more

Köppen Climate iThe 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.

Köppen climate map

Temperature

30° 50° 70°
39°
High: 45°F
Avg: 39°F
Low: 34°F
Jan
41°
High: 48°F
Avg: 41°F
Low: 35°F
Feb
45°
High: 52°F
Avg: 45°F
Low: 38°F
Mar
50°
High: 58°F
Avg: 50°F
Low: 42°F
Apr
56°
High: 64°F
Avg: 56°F
Low: 47°F
May
60°
High: 69°F
Avg: 60°F
Low: 52°F
Jun
64°
High: 73°F
Avg: 64°F
Low: 55°F
Jul
64°
High: 73°F
Avg: 64°F
Low: 55°F
Aug
59°
High: 67°F
Avg: 59°F
Low: 50°F
Sep
51°
High: 57°F
Avg: 51°F
Low: 44°F
Oct
44°
High: 50°F
Avg: 44°F
Low: 38°F
Nov
39°
High: 44°F
Avg: 39°F
Low: 34°F
Dec
32°F
Avg High Avg Temp Avg Low Light Frost (32°F)

Precipitation

0" 2" 4" 6" 6.0"
6.0"
6.00"
Jan
4.6"
4.64"
Feb
5.0"
5.01"
Mar
4.0"
4.01"
Apr
4.1"
4.12"
May
3.1"
3.10"
Jun
3.0"
3.05"
Jul
3.1"
3.12"
Aug
4.1"
4.09"
Sep
5.1"
5.12"
Oct
6.0"
6.02"
Nov
5.9"
5.93"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8.5h10h11.5h13.5h15h16h15.5h14h12.5h10.5h9h8h
Jan: 7:46 AM – 4:14 PM · 8h 27m
Feb: 7:03 AM – 4:57 PM · 9h 54m
Mar: 6:13 AM – 5:47 PM · 11h 34m
Apr: 5:16 AM – 6:44 PM · 13h 28m
May: 4:28 AM – 7:32 PM · 15h 04m
Jun: 4:01 AM – 7:59 PM · 15h 58m
Jul: 4:12 AM – 7:48 PM · 15h 36m
Aug: 4:54 AM – 7:06 PM · 14h 11m
Sep: 5:50 AM – 6:10 PM · 12h 20m
Oct: 6:45 AM – 5:15 PM · 10h 30m
Nov: 7:34 AM – 4:26 PM · 8h 52m
Dec: 7:59 AM – 4:01 PM · 8h 02m
Daylight Longest: 15h 59m · Shortest: 8h 01m

Nearby Stations

White Rock Campbell Scientific, BC March 16 - November 14 Delta Tsawwassen Beach, BC March 1 - November 22 Pitt Meadows Cs, BC April 7 - November 2 Bellingham Intl AP, WA March 31 - October 30 Saturna Island Cs, BC February 22 - December 2 Richmond Nature Park, BC April 10 - October 29

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