Kivalina, AK frost dates
Last spring frostJun 10median date
First fall frostSep 11median date
Growing season93 daysfrost-free
Hardiness zone3aZone 3a
How Kivalina compares
- In 8 years out of 10, the last spring frost in Kivalina falls between May 24 and June 23, a 30-day window. The first fall frost falls between August 26 and September 27.
- The median last frost is 20 days later than the Alaska median of May 21.
- Its 93-day growing season is longer than 8% of the 165 Alaska places with a regular frost season (state median 124 days).
- The weather station records an average of 244 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | May 24 |
| 50% (median) | June 10 |
| 10% (safe for tender plants) | June 23 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | August 26 |
| 50% (median) | September 11 |
| 90% (late) | September 27 |
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 Kivalina, AK
Kivalina, AK frost dates — last frost Jun 10, first frost Sep 11, zone 3a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Mar 18 to Apr 1Transplant outside: May 13 to May 27
Start indoors: Apr 1 to Apr 15Transplant outside: Jun 24 to Jul 8
Start indoors: Apr 1 to Apr 15Transplant outside: Jun 24 to Jul 8
Start indoors: Apr 15 to Apr 29Transplant outside: Jun 17 to Jul 1
Start indoors: Apr 15 to Apr 29Transplant outside: May 20 to Jun 3Sow outdoors: May 13 to Jun 17Plant for fall: Jul 17 to Aug 14
Start indoors: Apr 15 to Apr 29Transplant outside: May 13 to May 27Sow outdoors: May 13 to May 27Plant for fall: Jul 3 to Jul 24
Start indoors: Apr 15 to Apr 29Transplant outside: May 27 to Jun 10
Start indoors: Apr 15 to Apr 29Transplant outside: May 20 to Jun 3
Start indoors: Apr 15 to Apr 29Transplant outside: May 27 to Jun 10
Start indoors: Apr 29 to May 13Transplant outside: Jul 1 to Jul 15Sow outdoors: Jul 1 to Jul 15
Start indoors: Apr 29 to May 13Transplant outside: Jun 17 to Jul 1
Sow outdoors: Apr 29 to May 20
Sow outdoors: Apr 29 to May 20Plant for fall: Jul 17 to Aug 7
Sow outdoors: May 6 to Jun 17Plant for fall: Jul 31 to Aug 21
Start indoors: May 13 to May 20Transplant outside: Jun 24 to Jul 1Sow outdoors: Jun 17 to Jul 1
Start indoors: May 13 to May 20Sow outdoors: Jun 17 to Jul 1
Start indoors: May 13 to May 20Sow outdoors: Jun 17 to Jul 1
Start indoors: May 13 to May 20Transplant outside: Jun 24 to Jul 8
Sow outdoors: May 20 to Jun 17
Sow outdoors: May 20 to Jun 17Plant for fall: Jul 3 to Jul 17
Sow outdoors: May 20 to Jun 10
Sow outdoors: May 27 to Jun 24
Sow outdoors: May 27 to Jun 17Plant for fall: Jul 17 to Aug 7
Sow outdoors: Jun 17 to Jul 8
Sow outdoors: Jun 17 to Jul 1
Transplant outside: Jun 24 to Jul 15
Plant for fall: Aug 28 to Oct 2
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Kivalina, AK
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Mar 18 – Apr 1 | May 13 – May 27 | — | — |
| Peppers | Apr 1 – Apr 15 | Jun 24 – Jul 8 | — | — |
| Eggplant | Apr 1 – Apr 15 | Jun 24 – Jul 8 | — | — |
| Tomatoes | Apr 15 – Apr 29 | Jun 17 – Jul 1 | — | — |
| Lettuce | Apr 15 – Apr 29 | May 20 – Jun 3 | May 13 – Jun 17 | Jul 17 – Aug 14 |
| Kale | Apr 15 – Apr 29 | May 13 – May 27 | May 13 – May 27 | Jul 3 – Jul 24 |
| Broccoli | Apr 15 – Apr 29 | May 27 – Jun 10 | — | — |
| Cabbage | Apr 15 – Apr 29 | May 20 – Jun 3 | — | — |
| Cauliflower | Apr 15 – Apr 29 | May 27 – Jun 10 | — | — |
| Okra | Apr 29 – May 13 | Jul 1 – Jul 15 | Jul 1 – Jul 15 | — |
| Basil | Apr 29 – May 13 | Jun 17 – Jul 1 | — | — |
| Peas | — | — | Apr 29 – May 20 | — |
| Spinach | — | — | Apr 29 – May 20 | Jul 17 – Aug 7 |
| Radishes | — | — | May 6 – Jun 17 | Jul 31 – Aug 21 |
| Cucumbers | May 13 – May 20 | Jun 24 – Jul 1 | Jun 17 – Jul 1 | — |
| Zucchini & Summer Squash | May 13 – May 20 | — | Jun 17 – Jul 1 | — |
| Winter Squash & Pumpkins Warning: Your frost-free season is about 93 days, which is tight for winter squash & pumpkins (100+ days). Choose early varieties and use transplants or row covers. | May 13 – May 20 | — | Jun 17 – Jul 1 | — |
| Melons & Watermelon Warning: Your frost-free season is about 93 days, which is tight for melons & watermelon (85+ days). Choose early varieties and use transplants or row covers. | May 13 – May 20 | Jun 24 – Jul 8 | — | — |
| Carrots | — | — | May 20 – Jun 17 | — |
| Beets | — | — | May 20 – Jun 17 | Jul 3 – Jul 17 |
| Potatoes | — | — | May 20 – Jun 10 | — |
| Swiss Chard | — | — | May 27 – Jun 24 | — |
| Cilantro | — | — | May 27 – Jun 17 | Jul 17 – Aug 7 |
| Green Beans | — | — | Jun 17 – Jul 8 | — |
| Sweet Corn Warning: Your frost-free season is about 93 days, which is tight for sweet corn (80+ days). Choose early varieties and use transplants or row covers. | — | — | Jun 17 – Jul 1 | — |
| Sweet Potatoes Warning: Your frost-free season is about 93 days, which is tight for sweet potatoes (100+ days). Choose early varieties and use transplants or row covers. | — | Jun 24 – Jul 15 | — | — |
| Garlic | — | — | — | Aug 28 – Oct 2 |
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 Kivalina Ap, AK weather station, about 1 km away (elevation 10 ft (3 m)).
Frost dates near Kivalina
- Noatak Jun 10 · Sep 11
- Point Hope Jun 10 · Sep 11
- Kotzebue Jun 5 · Sep 24
- Noorvik Jun 5 · Sep 24
- Kiana Jun 5 · Sep 24
- Deering frost any month
- Selawik Jun 5 · Sep 24
- Buckland frost any month
- Brevig Mission Jun 5 · Sep 3
- Teller Jun 5 · Sep 3
Frequently asked questions
When is the last frost in Kivalina, AK?
The median last spring frost in Kivalina, AK is June 10. There is still about a 10% chance of frost after June 23, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Kivalina, AK?
The median first fall frost is September 11, with about a 10% chance of frost before August 26.
How long is the growing season in Kivalina, AK?
About 93 days between the median last spring frost and first fall frost.
What planting zone is Kivalina, AK?
Kivalina, AK is in USDA hardiness zone 3a.