Frost Dates for Moses Lake Grant Co AP, 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 27
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 8
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 2
First Fall Frost October 3

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze April 10
First Fall Hard Freeze October 20
47.21°N, -119.32°W © OpenStreetMap

Growing Season

164 Days April 27 to October 8

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°
30°
High: 36°
Avg: 30°
Low: 24°
Jan
35°
High: 44°
Avg: 35°
Low: 27°
Feb
43°
High: 55°
Avg: 43°
Low: 32°
Mar
51°
High: 64°
Avg: 51°
Low: 37°
Apr
60°
High: 74°
Avg: 60°
Low: 45°
May
66°
High: 80°
Avg: 66°
Low: 52°
Jun
73°
High: 90°
Avg: 73°
Low: 57°
Jul
72°
High: 88°
Avg: 72°
Low: 56°
Aug
63°
High: 79°
Avg: 63°
Low: 47°
Sep
50°
High: 63°
Avg: 50°
Low: 37°
Oct
38°
High: 46°
Avg: 38°
Low: 29°
Nov
30°
High: 36°
Avg: 30°
Low: 24°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 2" 2.1"
2.1"
2.12"
Jan
1.7"
1.68"
Feb
1.8"
1.78"
Mar
2.0"
2.05"
Apr
2.1"
2.06"
May
2.1"
2.13"
Jun
0.0"
0.00"
Jul
0.0"
0.00"
Aug
0.4"
0.42"
Sep
1.4"
1.38"
Oct
1.5"
1.50"
Nov
1.7"
1.72"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h12h13h15h16h15h14h12h11h9h8h
Jan: 7:39 AM – 4:21 PM · 8h 41m
Feb: 6:59 AM – 5:01 PM · 10h 02m
Mar: 6:12 AM – 5:48 PM · 11h 36m
Apr: 5:19 AM – 6:41 PM · 13h 23m
May: 4:34 AM – 7:26 PM · 14h 53m
Jun: 4:09 AM – 7:51 PM · 15h 42m
Jul: 4:19 AM – 7:41 PM · 15h 22m
Aug: 4:59 AM – 7:01 PM · 14h 03m
Sep: 5:50 AM – 6:10 PM · 12h 19m
Oct: 6:42 AM – 5:18 PM · 10h 36m
Nov: 7:28 AM – 4:32 PM · 9h 04m
Dec: 7:51 AM – 4:09 PM · 8h 18m
Daylight Longest: 15h 44m · Shortest: 8h 17m

Nearby Stations

Ephrata Muni AP, WA April 22 - October 17 Quincy, WAApril 21 - October 16 Smyrna, WAApril 23 - October 12 Odessa, WAMay 14 - September 26 Hartline, WAMay 2 - October 12 Lind 3 Ne, WAMay 7 - October 4

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