Frost Dates for Connell 1 W, WA

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 30
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 12
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 6
First Fall Frost October 6

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze April 10
First Fall Hard Freeze October 24
46.66°N, -118.88°W © OpenStreetMap

Growing Season

165 Days April 30 to October 12

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 7a

Learn more

Temperature

20° 40° 60° 80°
33°
High: 39°
Avg: 33°
Low: 27°
Jan
38°
High: 46°
Avg: 38°
Low: 29°
Feb
44°
High: 56°
Avg: 44°
Low: 32°
Mar
51°
High: 65°
Avg: 51°
Low: 37°
Apr
59°
High: 74°
Avg: 59°
Low: 44°
May
65°
High: 80°
Avg: 65°
Low: 50°
Jun
72°
High: 90°
Avg: 72°
Low: 55°
Jul
72°
High: 88°
Avg: 72°
Low: 55°
Aug
63°
High: 79°
Avg: 63°
Low: 47°
Sep
51°
High: 64°
Avg: 51°
Low: 38°
Oct
39°
High: 48°
Avg: 39°
Low: 31°
Nov
33°
High: 39°
Avg: 33°
Low: 27°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 2" 2.2"
2.2"
2.17"
Jan
1.9"
1.87"
Feb
1.9"
1.87"
Mar
1.8"
1.80"
Apr
1.9"
1.86"
May
2.1"
2.14"
Jun
1.4"
1.36"
Jul
0.0"
0.00"
Aug
0.5"
0.50"
Sep
1.9"
1.94"
Oct
2.1"
2.10"
Nov
2.2"
2.17"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h12h13h15h16h15h14h12h11h9h8h
Jan: 7:37 AM – 4:23 PM · 8h 45m
Feb: 6:58 AM – 5:02 PM · 10h 04m
Mar: 6:12 AM – 5:48 PM · 11h 36m
Apr: 5:20 AM – 6:40 PM · 13h 21m
May: 4:35 AM – 7:25 PM · 14h 49m
Jun: 4:11 AM – 7:49 PM · 15h 37m
Jul: 4:21 AM – 7:39 PM · 15h 18m
Aug: 4:60 AM – 7:00 PM · 14h 01m
Sep: 5:51 AM – 6:09 PM · 12h 19m
Oct: 6:41 AM – 5:19 PM · 10h 37m
Nov: 7:26 AM – 4:34 PM · 9h 07m
Dec: 7:49 AM – 4:11 PM · 8h 22m
Daylight Longest: 15h 39m · Shortest: 8h 21m

Nearby Stations

Hatton 9 Se, WA April 25 - October 15 Sagemoor, WAApril 30 - October 13 Eltopia 8 Wsw, WA April 21 - October 22 Lind 3 Ne, WAMay 7 - October 4 Ice Harbor Dam, WA April 7 - October 22 Pasco Tri Cities AP, WA April 27 - October 11

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