Frost Dates for Palmer, AK

Based on data from Palmer Muni AP weather station, 1 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. May 6
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 25
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 11
First Fall Frost September 19

Hard Freeze (28°F)

Last Spring Hard Freeze April 24
First Fall Hard Freeze October 3
61.60°N, -149.11°W © OpenStreetMap

Growing Season

142 Days May 6 to September 25

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 5a

Avg. annual minimum: −20 to −15°F (−29 to −26°C)

Learn more

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

Dsc Subarctic (Dry Summer)

Cool, dry summers and cold winters. A rare climate found at high elevations. Very short growing season for cold-tolerant crops only.

Köppen climate map

Temperature

0° 20° 40° 60°
15°
High: 22°F
Avg: 15°F
Low: 8°F
Jan
21°
High: 28°F
Avg: 21°F
Low: 13°F
Feb
26°
High: 34°F
Avg: 26°F
Low: 17°F
Mar
39°
High: 48°F
Avg: 39°F
Low: 30°F
Apr
49°
High: 59°F
Avg: 49°F
Low: 39°F
May
56°
High: 66°F
Avg: 56°F
Low: 47°F
Jun
59°
High: 68°F
Avg: 59°F
Low: 51°F
Jul
56°
High: 65°F
Avg: 56°F
Low: 48°F
Aug
48°
High: 56°F
Avg: 48°F
Low: 41°F
Sep
36°
High: 42°F
Avg: 36°F
Low: 29°F
Oct
22°
High: 29°F
Avg: 22°F
Low: 16°F
Nov
18°
High: 25°F
Avg: 18°F
Low: 11°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 2" 2.4"
1.9"
1.87"
Jan
1.4"
1.45"
Feb
2.0"
2.01"
Mar
1.6"
1.64"
Apr
1.5"
1.53"
May
1.6"
1.58"
Jun
2.0"
2.05"
Jul
2.4"
2.40"
Aug
2.4"
2.40"
Sep
2.0"
2.01"
Oct
1.3"
1.32"
Nov
1.9"
1.95"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec6h8.5h11.5h14.5h17h19h18h15.5h12.5h9.5h6.5h5h
Jan: 9:04 AM – 2:56 PM · 5h 52m
Feb: 7:44 AM – 4:16 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 12m
Jun: 2:29 AM – 9:31 PM · 19h 03m
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 40m
Dec: 9:32 AM – 2:28 PM · 4h 57m
Daylight Longest: 19h 07m · Shortest: 4h 53m

Nearby Stations

Palmer Job Corps, AK April 24 - October 4 Lazy Mtn, AKMay 22 - September 16 Ben'S Farm, AK May 12 - September 20 Matanuska Exp Farm, AK May 14 - September 20 Anderson Lake, AK May 16 - September 23 Little Su At Hatcher Pass Brg, AK May 18 - September 18

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