Frost Dates for Elmendorf Air Force Base, AK

Based on data from Ft Richardson Wtp weather station, 2 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 9
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 26
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 14
First Fall Frost September 19

Hard Freeze (28°F)

Last Spring Hard Freeze April 28
First Fall Hard Freeze October 6
61.26°N, -149.63°W © OpenStreetMap

Growing Season

140 Days May 9 to September 26

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 5b

Avg. annual minimum: −15 to −10°F (−26 to −23°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: 21°F
Avg: 15°F
Low: 8°F
Jan
20°
High: 28°F
Avg: 20°F
Low: 12°F
Feb
24°
High: 33°F
Avg: 24°F
Low: 15°F
Mar
37°
High: 46°F
Avg: 37°F
Low: 28°F
Apr
47°
High: 57°F
Avg: 47°F
Low: 38°F
May
55°
High: 64°F
Avg: 55°F
Low: 46°F
Jun
58°
High: 66°F
Avg: 58°F
Low: 50°F
Jul
56°
High: 64°F
Avg: 56°F
Low: 48°F
Aug
48°
High: 55°F
Avg: 48°F
Low: 40°F
Sep
35°
High: 42°F
Avg: 35°F
Low: 28°F
Oct
21°
High: 28°F
Avg: 21°F
Low: 15°F
Nov
18°
High: 24°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" 3" 3.1"
2.7"
2.70"
Jan
2.0"
2.05"
Feb
2.2"
2.17"
Mar
2.0"
2.04"
Apr
1.9"
1.88"
May
2.2"
2.17"
Jun
2.7"
2.72"
Jul
3.0"
3.05"
Aug
3.0"
3.00"
Sep
3.1"
3.10"
Oct
2.9"
2.88"
Nov
3.1"
3.15"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec6h8.5h11.5h14.5h17h19h18h15.5h12.5h9.5h7h5h
Jan: 9:01 AM – 2:59 PM · 5h 59m
Feb: 7:42 AM – 4:18 PM · 8h 36m
Mar: 6:21 AM – 5:39 PM · 11h 19m
Apr: 4:50 AM – 7:10 PM · 14h 21m
May: 3:27 AM – 8:33 PM · 17h 06m
Jun: 2:33 AM – 9:27 PM · 18h 54m
Jul: 2:56 AM – 9:04 PM · 18h 07m
Aug: 4:14 AM – 7:46 PM · 15h 32m
Sep: 5:44 AM – 6:16 PM · 12h 32m
Oct: 7:12 AM – 4:48 PM · 9h 36m
Nov: 8:37 AM – 3:23 PM · 6h 46m
Dec: 9:27 AM – 2:33 PM · 5h 06m
Daylight Longest: 18h 57m · Shortest: 5h 03m

Nearby Stations

Campbell Creek Sci Ctr, AK May 28 - September 12 Anchorage Merrill Fld, AK May 1 - September 29 Eagle Rvr Gakona Circle, AK May 9 - September 26 Eagle Rvr 5 Se, AK May 21 - September 15 Anchorage Upper De Armoun, AK May 7 - September 28 Glen Alps, AK May 18 - September 23

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