Frost dates for E Sandwich, NH
When the last spring frost and first fall frost usually come, and when to plant, from 30 years of NOAA weather records.
Last spring frost
May 6
typical year
Safe to plant
May 19
frost is over in 9 of 10 years
First fall frost
October 6
typical year
Growing season
151 days
frost-free, typical year
Frost watch this week
Tonight's and the next six nights' lows from the National Weather Service forecast for the station's location. Frost: 32°F or colder. Possible frost: 33–36°F, mostly in low spots on clear, still nights.
When to plant
Counted from this page's frost dates. Warm-season crops wait for the safe-to-plant date.
| Crop | Start indoors | Plant outside | Fall planting |
|---|---|---|---|
| Cool-season crops | |||
| Peas | – | Apr 8 – 22 | – |
| Spinach | – | Mar 25 – Apr 15 | Aug 11 – 25 |
| Lettuce | – | Apr 8 – 29 | Aug 11 – 25 |
| Radishes | – | Apr 8 – May 20 | Aug 25 – Sep 8 |
| Onions | – | Apr 8 – 22 | – |
| Potatoes | – | Apr 15 – 29 | – |
| Carrots | – | Apr 15 – May 6 | Jul 14 – 28 |
| Beets | – | Apr 8 – 22 | Jul 28 – Aug 11 |
| Kale | Feb 25 – Mar 11 | Apr 8 – 22 | Jul 28 – Aug 11 |
| Broccoli | Feb 25 – Mar 11 | Apr 22 – May 6 | Jul 28 – Aug 11 |
| Cabbage | Feb 11 – 25 | Apr 8 – 22 | Jul 28 – Aug 11 |
| Garlic | – | – | Aug 25 – Sep 15 |
| Warm-season crops | |||
| Tomatoes | Mar 24 – Apr 7 | May 19 – Jun 2 | – |
| Peppers | Mar 17 – 31 | May 26 – Jun 9 | – |
| Cucumbers | – | May 19 – Jun 9 | – |
| Zucchini | – | May 19 – Jun 16 | – |
| Pumpkins | – | May 19 – Jun 9 | – |
| Green beans | – | May 19 – Jul 28 | – |
| Sweet corn | – | May 19 – Jun 16 | – |
| Basil | Apr 14 – 28 | May 26 – Jun 2 | – |
Onions: from sets. Green beans: until 10 weeks before the first fall frost. Garlic: harvest next summer.
The year at a glance
Start indoors Plant outside Fall planting
The chance of frost, by date
| 1 year in 10 | Half of years | 9 years in 10 | |
|---|---|---|---|
| Spring frost after | May 19 | May 6 | April 26 |
| Fall frost before | September 24 | October 6 | October 19 |
Frost here means 32°F or colder. Read across: in 1 year in 10, spring frost carries on past the first date, which is why that date is the safe-to-plant date.
Hard freeze (28°F)
A hard freeze kills most garden plants, even hardy ones. The last one in spring usually comes around April 24 (May 5 in a late year), and the first one in fall around October 19.
Where these dates come from
NOAA weather station E SANDWICH, NH US (USC00272303), 1991–2020 climate normals. It's the nearest station for 5 zip codes, all within 15 miles:
03227, 03816, 03850, 03864, 03883
Planting dates follow common university extension advice; your local extension service can fine-tune them for your soil and microclimate.