Frost Dates for Matanuska Exp Farm, AK

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. May 14
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. September 20
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 19
First Fall Frost September 16

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze May 1
First Fall Hard Freeze October 1
61.57°N, -149.25°W © OpenStreetMap

Growing Season

129 Days May 14 to September 20

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 4b

Learn more

Temperature

0° 20° 40° 60°
15°
High: 23°
Avg: 15°
Low: 7°
Jan
20°
High: 29°
Avg: 20°
Low: 12°
Feb
25°
High: 34°
Avg: 25°
Low: 16°
Mar
38°
High: 48°
Avg: 38°
Low: 29°
Apr
48°
High: 59°
Avg: 48°
Low: 38°
May
56°
High: 66°
Avg: 56°
Low: 46°
Jun
59°
High: 68°
Avg: 59°
Low: 51°
Jul
57°
High: 65°
Avg: 57°
Low: 48°
Aug
48°
High: 57°
Avg: 48°
Low: 40°
Sep
35°
High: 43°
Avg: 35°
Low: 27°
Oct
22°
High: 29°
Avg: 22°
Low: 14°
Nov
17°
High: 25°
Avg: 17°
Low: 10°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 2" 2.7"
2.5"
2.48"
Jan
2.2"
2.24"
Feb
2.0"
2.05"
Mar
1.7"
1.69"
Apr
1.9"
1.86"
May
2.0"
1.97"
Jun
2.5"
2.47"
Jul
2.7"
2.72"
Aug
2.7"
2.70"
Sep
2.6"
2.61"
Oct
1.9"
1.90"
Nov
2.0"
2.05"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec6h9h11h14h17h19h18h16h13h10h7h5h
Jan: 9:04 AM – 2:56 PM · 5h 52m
Feb: 7:43 AM – 4:17 PM · 8h 33m
Mar: 6:21 AM – 5:39 PM · 11h 18m
Apr: 4:49 AM – 7:11 PM · 14h 23m
May: 3:24 AM – 8:36 PM · 17h 11m
Jun: 2:29 AM – 9:31 PM · 19h 02m
Jul: 2:53 AM – 9:07 PM · 18h 14m
Aug: 4:12 AM – 7:48 PM · 15h 36m
Sep: 5:44 AM – 6:16 PM · 12h 33m
Oct: 7:13 AM – 4:47 PM · 9h 34m
Nov: 8:40 AM – 3:20 PM · 6h 41m
Dec: 9:31 AM – 2:29 PM · 4h 57m
Daylight Longest: 19h 06m · Shortest: 4h 54m

Nearby Stations

Ben'S Farm, AK May 12 - September 20 Anderson Lake, AK May 16 - September 23 Palmer Job Corps, AK April 24 - October 4 Palmer Muni AP, AK May 6 - September 25 Lazy Mtn, AKMay 22 - September 16 Eklutna Wtp, AK May 18 - September 20

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