Northway, AK frost dates
Last spring frostMay 26median date
First fall frostSep 1median date
Growing season98 daysfrost-free
Hardiness zone2aZone 2a
How Northway compares
- In 8 years out of 10, the last spring frost in Northway falls between May 13 and June 8, a 26-day window. The first fall frost falls between August 18 and September 13.
- The median last frost is 5 days later than the Alaska median of May 21.
- Its 98-day growing season is longer than 17% 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 242 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | May 13 |
| 50% (median) | May 26 |
| 10% (safe for tender plants) | June 8 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | August 18 |
| 50% (median) | September 1 |
| 90% (late) | September 13 |
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 Northway, AK
Northway, AK frost dates — last frost May 26, first frost Sep 1, zone 2a. whenisthelastfrost.com
Crop
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Start indoors: Mar 3 to Mar 17Transplant outside: Apr 28 to May 12
Start indoors: Mar 17 to Mar 31Transplant outside: Jun 9 to Jun 23
Start indoors: Mar 17 to Mar 31Transplant outside: Jun 9 to Jun 23
Start indoors: Mar 31 to Apr 14Transplant outside: Jun 2 to Jun 16
Start indoors: Mar 31 to Apr 14Transplant outside: May 5 to May 19Sow outdoors: Apr 28 to Jun 2Plant for fall: Jul 7 to Aug 4
Start indoors: Mar 31 to Apr 14Transplant outside: Apr 28 to May 12Sow outdoors: Apr 28 to May 12Plant for fall: Jun 23 to Jul 14
Start indoors: Mar 31 to Apr 14Transplant outside: May 12 to May 26
Start indoors: Mar 31 to Apr 14Transplant outside: May 5 to May 19
Start indoors: Mar 31 to Apr 14Transplant outside: May 12 to May 26
Start indoors: Apr 14 to Apr 28Transplant outside: Jun 16 to Jun 30Sow outdoors: Jun 16 to Jun 30
Start indoors: Apr 14 to Apr 28Transplant outside: Jun 2 to Jun 16
Sow outdoors: Apr 14 to May 5
Sow outdoors: Apr 14 to May 5Plant for fall: Jul 7 to Jul 28
Sow outdoors: Apr 21 to Jun 2Plant for fall: Jul 21 to Aug 11
Start indoors: Apr 28 to May 5Transplant outside: Jun 9 to Jun 16Sow outdoors: Jun 2 to Jun 16
Start indoors: Apr 28 to May 5Sow outdoors: Jun 2 to Jun 16
Start indoors: Apr 28 to May 5Sow outdoors: Jun 2 to Jun 16
Start indoors: Apr 28 to May 5Transplant outside: Jun 9 to Jun 23
Sow outdoors: May 5 to Jun 2
Sow outdoors: May 5 to Jun 2Plant for fall: Jun 23 to Jul 7
Sow outdoors: May 5 to May 26
Sow outdoors: May 12 to Jun 9
Sow outdoors: May 12 to Jun 2Plant for fall: Jul 7 to Jul 28
Sow outdoors: Jun 2 to Jun 23
Sow outdoors: Jun 2 to Jun 16
Transplant outside: Jun 9 to Jun 30
Plant for fall: Aug 18 to Sep 22
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Northway, AK
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Mar 3 – Mar 17 | Apr 28 – May 12 | — | — |
| Peppers | Mar 17 – Mar 31 | Jun 9 – Jun 23 | — | — |
| Eggplant | Mar 17 – Mar 31 | Jun 9 – Jun 23 | — | — |
| Tomatoes | Mar 31 – Apr 14 | Jun 2 – Jun 16 | — | — |
| Lettuce | Mar 31 – Apr 14 | May 5 – May 19 | Apr 28 – Jun 2 | Jul 7 – Aug 4 |
| Kale | Mar 31 – Apr 14 | Apr 28 – May 12 | Apr 28 – May 12 | Jun 23 – Jul 14 |
| Broccoli | Mar 31 – Apr 14 | May 12 – May 26 | — | — |
| Cabbage | Mar 31 – Apr 14 | May 5 – May 19 | — | — |
| Cauliflower | Mar 31 – Apr 14 | May 12 – May 26 | — | — |
| Okra | Apr 14 – Apr 28 | Jun 16 – Jun 30 | Jun 16 – Jun 30 | — |
| Basil | Apr 14 – Apr 28 | Jun 2 – Jun 16 | — | — |
| Peas | — | — | Apr 14 – May 5 | — |
| Spinach | — | — | Apr 14 – May 5 | Jul 7 – Jul 28 |
| Radishes | — | — | Apr 21 – Jun 2 | Jul 21 – Aug 11 |
| Cucumbers | Apr 28 – May 5 | Jun 9 – Jun 16 | Jun 2 – Jun 16 | — |
| Zucchini & Summer Squash | Apr 28 – May 5 | — | Jun 2 – Jun 16 | — |
| Winter Squash & Pumpkins Warning: Your frost-free season is about 98 days, which is tight for winter squash & pumpkins (100+ days). Choose early varieties and use transplants or row covers. | Apr 28 – May 5 | — | Jun 2 – Jun 16 | — |
| Melons & Watermelon Warning: Your frost-free season is about 98 days, which is tight for melons & watermelon (85+ days). Choose early varieties and use transplants or row covers. | Apr 28 – May 5 | Jun 9 – Jun 23 | — | — |
| Carrots | — | — | May 5 – Jun 2 | — |
| Beets | — | — | May 5 – Jun 2 | Jun 23 – Jul 7 |
| Potatoes | — | — | May 5 – May 26 | — |
| Swiss Chard | — | — | May 12 – Jun 9 | — |
| Cilantro | — | — | May 12 – Jun 2 | Jul 7 – Jul 28 |
| Green Beans | — | — | Jun 2 – Jun 23 | — |
| Sweet Corn | — | — | Jun 2 – Jun 16 | — |
| Sweet Potatoes Warning: Your frost-free season is about 98 days, which is tight for sweet potatoes (100+ days). Choose early varieties and use transplants or row covers. | — | Jun 9 – Jun 30 | — | — |
| Garlic | — | — | — | Aug 18 – Sep 22 |
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 Northway Ap, AK weather station, about 1 km away (elevation 1,713 ft (522 m)).
Frost dates near Northway
- Tok Jun 3 · Aug 27
- Tanacross frost any month
- Chicken frost any month
- Gakona Jun 7 · Aug 21
- Copper Center frost any month
- Eagle May 29 · Aug 23
- Chitina May 31 · Sep 3
- Glennallen frost any month
- Delta Junction May 17 · Sep 7
- Fort Greely May 26 · Sep 2
Frequently asked questions
When is the last frost in Northway, AK?
The median last spring frost in Northway, AK is May 26. There is still about a 10% chance of frost after June 8, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Northway, AK?
The median first fall frost is September 1, with about a 10% chance of frost before August 18.
How long is the growing season in Northway, AK?
About 98 days between the median last spring frost and first fall frost.
What planting zone is Northway, AK?
Northway, AK is in USDA hardiness zone 2a.