Frost Dates for Finley, WA

Based on data from Kennewick weather station, 5 miles away

Elevation: 354 ft

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 28
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 30
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 2
First Fall Frost October 25

Hard Freeze (28°F)

Last Spring Hard Freeze March 8
First Fall Hard Freeze November 11
46.15°N, -119.03°W © OpenStreetMap

Growing Season

216 Days March 28 to October 30

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 7b

Avg. annual minimum: 5 to 10°F (−15 to −12°C)

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

BWk Cold Desert

Dry with hot summers and cold winters. Rainfall is minimal year-round. Short growing seasons and large temperature swings require careful timing. Cold-hardy, drought-tolerant plants are best suited.

Köppen climate map

Temperature

20° 40° 60° 80° 100°
36°
High: 42°F
Avg: 36°F
Low: 29°F
Jan
40°
High: 48°F
Avg: 40°F
Low: 31°F
Feb
47°
High: 58°F
Avg: 47°F
Low: 36°F
Mar
54°
High: 66°F
Avg: 54°F
Low: 42°F
Apr
63°
High: 75°F
Avg: 63°F
Low: 50°F
May
69°
High: 82°F
Avg: 69°F
Low: 56°F
Jun
77°
High: 91°F
Avg: 77°F
Low: 62°F
Jul
76°
High: 90°F
Avg: 76°F
Low: 61°F
Aug
67°
High: 81°F
Avg: 67°F
Low: 53°F
Sep
55°
High: 66°F
Avg: 55°F
Low: 43°F
Oct
43°
High: 51°F
Avg: 43°F
Low: 35°F
Nov
36°
High: 42°F
Avg: 36°F
Low: 30°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 2.0"
1.8"
1.76"
Jan
1.5"
1.54"
Feb
1.6"
1.60"
Mar
1.5"
1.50"
Apr
2.0"
1.98"
May
2.0"
1.98"
Jun
0.2"
0.18"
Jul
0.0"
0.00"
Aug
0.4"
0.36"
Sep
1.9"
1.85"
Oct
1.5"
1.50"
Nov
1.8"
1.75"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h11.5h13.5h15h15.5h15h14h12.5h10.5h9h8.5h
Jan: 7:42 AM – 4:30 PM · 8h 48m
Feb: 7:08 AM – 5:14 PM · 10h 06m
Mar: 7:18 AM – 6:54 PM · 11h 36m
Apr: 6:17 AM – 7:36 PM · 13h 20m
May: 5:29 AM – 8:16 PM · 14h 46m
Jun: 5:10 AM – 8:43 PM · 15h 34m
Jul: 5:25 AM – 8:39 PM · 15h 14m
Aug: 6:01 AM – 7:60 PM · 13h 59m
Sep: 6:42 AM – 7:00 PM · 12h 19m
Oct: 7:22 AM – 6:01 PM · 10h 39m
Nov: 7:06 AM – 4:17 PM · 9h 10m
Dec: 7:39 AM – 4:05 PM · 8h 26m
Daylight Pacific Time (PT) Longest: 15h 35m · Shortest: 8h 25m

Nearby Stations

Pasco Tri Cities AP, WA April 27 - October 11 Richland, WAApril 6 - October 24 Ice Harbor Dam, WA April 7 - October 22 Sagemoor, WAApril 30 - October 13 Eltopia 8 Wsw, WA April 21 - October 22 Mcnary Dam, WA March 27 - November 4

Plan Your Garden with Planter

Now that you know your frost dates, use Planter to plan your veggie garden! Planter is an easy drag-and-drop garden planner with personalized planting schedules.

Try Planter For Free

Available everywhere: iOS, Android, web, and more!

Planter app garden planner preview