Frost dates for Waynesburg, PA
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 3
typical year
Safe to plant
May 21
frost is over in 9 of 10 years
First fall frost
October 15
typical year
Growing season
164 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 5 – 19 | – |
| Spinach | – | Mar 22 – Apr 12 | Aug 20 – Sep 3 |
| Lettuce | – | Apr 5 – 26 | Aug 20 – Sep 3 |
| Radishes | – | Apr 5 – May 17 | Sep 3 – 17 |
| Onions | – | Apr 5 – 19 | – |
| Potatoes | – | Apr 12 – 26 | – |
| Carrots | – | Apr 12 – May 3 | Jul 23 – Aug 6 |
| Beets | – | Apr 5 – 19 | Aug 6 – 20 |
| Kale | Feb 22 – Mar 8 | Apr 5 – 19 | Aug 6 – 20 |
| Broccoli | Feb 22 – Mar 8 | Apr 19 – May 3 | Aug 6 – 20 |
| Cabbage | Feb 8 – 22 | Apr 5 – 19 | Aug 6 – 20 |
| Garlic | – | – | Sep 3 – 24 |
| Warm-season crops | |||
| Tomatoes | Mar 26 – Apr 9 | May 21 – Jun 4 | – |
| Peppers | Mar 19 – Apr 2 | May 28 – Jun 11 | – |
| Cucumbers | – | May 21 – Jun 11 | – |
| Zucchini | – | May 21 – Jun 18 | – |
| Pumpkins | – | May 21 – Jun 11 | – |
| Green beans | – | May 21 – Aug 6 | – |
| Sweet corn | – | May 21 – Jun 18 | – |
| Basil | Apr 16 – 30 | May 28 – Jun 4 | – |
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 21 | May 3 | April 19 |
| Fall frost before | October 2 | October 15 | October 28 |
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 22 (May 11 in a late year), and the first one in fall around October 25.
Towns that use these dates
This is the nearest NOAA station with frost records for 5 towns.
Waynesburg, Rices Landing, Marianna, Jefferson, Clarksville
Where these dates come from
NOAA weather station WAYNESBURG 1 E, PA US (USC00369367), 1991–2020 climate normals. It's the nearest station for 16 zip codes, all within 12 miles:
15316, 15322, 15325, 15329, 15337, 15341, 15344, 15345, 15346, 15348, 15353, 15357, 15359, 15362, 15364, 15370
Planting dates follow common university extension advice; your local extension service can fine-tune them for your soil and microclimate.