Anderson, AK frost dates
Last spring frostMay 24median date
First fall frostSep 4median date
Growing season103 daysfrost-free
Hardiness zone2aZone 2a
How Anderson compares
- In 8 years out of 10, the last spring frost in Anderson falls between May 11 and June 12, a 32-day window. The first fall frost falls between August 19 and September 18.
- The median last frost is 3 days later than the Alaska median of May 21.
- Its 103-day growing season is longer than 24% of the 165 Alaska places with a regular frost season (state median 124 days).
- The last frost is typical for zone 2a, where the median is May 24.
- The weather station records an average of 234 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | May 11 |
| 50% (median) | May 24 |
| 10% (safe for tender plants) | June 12 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | August 19 |
| 50% (median) | September 4 |
| 90% (late) | September 18 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Anderson, AK
Anderson, AK frost dates — last frost May 24, first frost Sep 4, zone 2a. whenisthelastfrost.com
Crop
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Start indoors: Mar 1 to Mar 15Transplant outside: Apr 26 to May 10
Start indoors: Mar 15 to Mar 29Transplant outside: Jun 7 to Jun 21
Start indoors: Mar 15 to Mar 29Transplant outside: Jun 7 to Jun 21
Start indoors: Mar 29 to Apr 12Transplant outside: May 31 to Jun 14
Start indoors: Mar 29 to Apr 12Transplant outside: May 3 to May 17Sow outdoors: Apr 26 to May 31Plant for fall: Jul 10 to Aug 7
Start indoors: Mar 29 to Apr 12Transplant outside: Apr 26 to May 10Sow outdoors: Apr 26 to May 10Plant for fall: Jun 26 to Jul 17
Start indoors: Mar 29 to Apr 12Transplant outside: May 10 to May 24
Start indoors: Mar 29 to Apr 12Transplant outside: May 3 to May 17
Start indoors: Mar 29 to Apr 12Transplant outside: May 10 to May 24
Start indoors: Apr 12 to Apr 26Transplant outside: Jun 14 to Jun 28Sow outdoors: Jun 14 to Jun 28
Start indoors: Apr 12 to Apr 26Transplant outside: May 31 to Jun 14
Sow outdoors: Apr 12 to May 3Plant for fall: Jun 12 to Jul 3
Sow outdoors: Apr 12 to May 3Plant for fall: Jul 10 to Jul 31
Sow outdoors: Apr 19 to May 31Plant for fall: Jul 24 to Aug 14
Start indoors: Apr 26 to May 3Transplant outside: Jun 7 to Jun 14Sow outdoors: May 31 to Jun 14
Start indoors: Apr 26 to May 3Sow outdoors: May 31 to Jun 14
Start indoors: Apr 26 to May 3Sow outdoors: May 31 to Jun 14
Start indoors: Apr 26 to May 3Transplant outside: Jun 7 to Jun 21
Sow outdoors: May 3 to May 31
Sow outdoors: May 3 to May 31Plant for fall: Jun 26 to Jul 10
Sow outdoors: May 3 to May 24
Sow outdoors: May 10 to Jun 7Plant for fall: Jun 26 to Jul 10
Sow outdoors: May 10 to May 31Plant for fall: Jul 10 to Jul 31
Sow outdoors: May 31 to Jun 21
Sow outdoors: May 31 to Jun 14
Transplant outside: Jun 7 to Jun 28
Plant for fall: Aug 21 to Sep 25
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Anderson, AK
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Mar 1 – Mar 15 | Apr 26 – May 10 | — | — |
| Peppers | Mar 15 – Mar 29 | Jun 7 – Jun 21 | — | — |
| Eggplant | Mar 15 – Mar 29 | Jun 7 – Jun 21 | — | — |
| Tomatoes | Mar 29 – Apr 12 | May 31 – Jun 14 | — | — |
| Lettuce | Mar 29 – Apr 12 | May 3 – May 17 | Apr 26 – May 31 | Jul 10 – Aug 7 |
| Kale | Mar 29 – Apr 12 | Apr 26 – May 10 | Apr 26 – May 10 | Jun 26 – Jul 17 |
| Broccoli | Mar 29 – Apr 12 | May 10 – May 24 | — | — |
| Cabbage | Mar 29 – Apr 12 | May 3 – May 17 | — | — |
| Cauliflower | Mar 29 – Apr 12 | May 10 – May 24 | — | — |
| Okra | Apr 12 – Apr 26 | Jun 14 – Jun 28 | Jun 14 – Jun 28 | — |
| Basil | Apr 12 – Apr 26 | May 31 – Jun 14 | — | — |
| Peas | — | — | Apr 12 – May 3 | Jun 12 – Jul 3 |
| Spinach | — | — | Apr 12 – May 3 | Jul 10 – Jul 31 |
| Radishes | — | — | Apr 19 – May 31 | Jul 24 – Aug 14 |
| Cucumbers | Apr 26 – May 3 | Jun 7 – Jun 14 | May 31 – Jun 14 | — |
| Zucchini & Summer Squash | Apr 26 – May 3 | — | May 31 – Jun 14 | — |
| Winter Squash & Pumpkins Warning: Your frost-free season is about 103 days, which is tight for winter squash & pumpkins (100+ days). Choose early varieties and use transplants or row covers. | Apr 26 – May 3 | — | May 31 – Jun 14 | — |
| Melons & Watermelon | Apr 26 – May 3 | Jun 7 – Jun 21 | — | — |
| Carrots | — | — | May 3 – May 31 | — |
| Beets | — | — | May 3 – May 31 | Jun 26 – Jul 10 |
| Potatoes | — | — | May 3 – May 24 | — |
| Swiss Chard | — | — | May 10 – Jun 7 | Jun 26 – Jul 10 |
| Cilantro | — | — | May 10 – May 31 | Jul 10 – Jul 31 |
| Green Beans | — | — | May 31 – Jun 21 | — |
| Sweet Corn | — | — | May 31 – Jun 14 | — |
| Sweet Potatoes Warning: Your frost-free season is about 103 days, which is tight for sweet potatoes (100+ days). Choose early varieties and use transplants or row covers. | — | Jun 7 – Jun 28 | — | — |
| Garlic | — | — | — | Aug 21 – Sep 25 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Clear Sky, AK weather station, 11 km away (elevation 646 ft (197 m)).
Frost dates near Anderson
- Clear May 24 · Sep 4
- Nenana May 15 · Sep 11
- Healy May 27 · Sep 1
- Ester May 24 · Sep 1
- Minto frost any month
- Fairbanks May 16 · Sep 6
- Fort Wainwright May 16 · Sep 6
- Denali National Park May 25 · Sep 8
- North Pole May 22 · Sep 2
- Manley Hot Springs frost any month
Frequently asked questions
When is the last frost in Anderson, AK?
The median last spring frost in Anderson, AK is May 24. There is still about a 10% chance of frost after June 12, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Anderson, AK?
The median first fall frost is September 4, with about a 10% chance of frost before August 19.
How long is the growing season in Anderson, AK?
About 103 days between the median last spring frost and first fall frost.
What planting zone is Anderson, AK?
Anderson, AK is in USDA hardiness zone 2a.