Frost dates for 23183White Marsh, VA
The average last spring frost in White Marsh is April 1 and the average first fall frost is November 10, giving a typical growing season of about 223 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 1
- Average first fall frost
- Nov 10
- Growing season
- 223 days
Safer after Apr 15 (1-in-10 risk)
Possible by Oct 31 (1-in-10 risk)
First frost typically in 7 days
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | Mar 31 · Apr 15 · May 3 | Oct 18 · Nov 1 · Nov 12 | 199 days | 100% |
| Frost / freeze (32°F) | Mar 20 · Apr 1 · Apr 15 | Oct 31 · Nov 10 · Nov 26 | 223 days | 100% |
| Hard freeze (28°F) | Mar 5 · Mar 21 · Apr 3 | Nov 7 · Nov 23 · Dec 10 | 247 days | 100% |
Planting calendar for White Marsh
Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.
| Crop | Task | Window |
|---|---|---|
| Tomatoes | Start seeds indoors | Mar 1 – May 7 |
| Tomatoes | Transplant outdoors | Apr 17 – Jul 21 |
| Peppers | Start seeds indoors | Mar 1 – Apr 1 |
| Peppers | Transplant outdoors | May 1 – Jun 1 |
| Eggplant | Start seeds indoors | Mar 18 – Apr 16 |
| Eggplant | Transplant outdoors | May 1 – Jun 1 |
| Cucumbers | Sow outdoors | May 1 – Jul 31 |
| Summer squash | Sow outdoors | Apr 17 – Jun 1 |
| Winter squash & pumpkins | Sow outdoors | May 1 – Jun 1 |
| Snap beans | Sow outdoors | Apr 17 – Aug 23 |
| Sweet corn | Sow outdoors | Apr 17 – Jul 21 |
| Watermelon & cantaloupe | Sow outdoors | May 1 – Jun 1 |
| Okra | Sow outdoors | Apr 24 – May 17 |
| Peas | Sow outdoors (spring) | Mar 1 – Apr 16 |
| Potatoes | Plant outdoors (spring) | Mar 1 – May 1 |
| Onions | Start seeds indoors (spring) | Jan 18 – Feb 14 |
| Onions | Transplant outdoors (spring) | Mar 18 – Apr 16 |
| Broccoli | Start seeds indoors (spring) | Feb 11 – Mar 17 |
| Broccoli | Transplant outdoors (spring) | Mar 18 – Apr 16 |
| Broccoli | Start seeds indoors (fall) | Jul 11 – Jul 21 |
| Broccoli | Transplant outdoors (fall) | Aug 10 – Aug 21 |
| Cabbage | Start seeds indoors (spring) | Feb 1 – Mar 1 |
| Cabbage | Transplant outdoors (spring) | Mar 1 – Apr 1 |
| Cabbage | Start seeds indoors (fall) | Jul 1 – Jul 31 |
| Cabbage | Transplant outdoors (fall) | Jul 31 – Aug 31 |
| Leaf lettuce | Sow outdoors (spring) | Mar 1 – May 17 |
| Leaf lettuce | Sow outdoors (fall) | Jul 31 – Sep 16 |
| Spinach | Sow outdoors (spring) | Feb 22 – Apr 7 |
| Spinach | Sow outdoors (fall) | Aug 17 – Sep 21 |
| Radishes | Sow outdoors (spring) | Mar 1 – Apr 21 |
| Radishes | Sow outdoors (fall) | Jul 31 – Oct 1 |
| Kale | Sow outdoors (spring) | Mar 18 – Apr 7 |
| Kale | Sow outdoors (fall) | Jul 24 – Aug 31 |
| Carrots | Sow outdoors (spring) | Apr 1 – May 17 |
| Carrots | Sow outdoors (fall) | Jul 1 – Aug 16 |
| Garlic | Plant outdoors (fall) | Oct 31 – Dec 1 |
Where these dates come from
ZIP code 23183 is matched to the NOAA station N, VA, 11.3 km away, at 4 ft elevation (68 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| N, VA (used) | 4 ft | Apr 1 | Nov 10 |
| Williamsburg 2 N, VA | 70 ft | Mar 31 | Nov 10 |
| Newport News Intl Ap, VA | 42 ft | Apr 1 | Nov 9 |
| W Pt 2 Nw, VA | 20 ft | Apr 6 | Nov 1 |
Frost dates near White Marsh
- Gloucester, VA 23061 · last Apr 1, first Nov 10
- Ordinary, VA 23131 · last Apr 1, first Nov 10
- Severn, VA 23155 · last Apr 1, first Nov 10
- Schley, VA 23154 · last Apr 1, first Nov 10
- Ware Neck, VA 23178 · last Apr 1, first Nov 10
- Wicomico, VA 23184 · last Apr 1, first Nov 10
- Hayes, VA 23072 · last Apr 1, first Nov 10
- Ark, VA 23003 · last Mar 31, first Nov 10
Frequently asked questions
- When is the last frost in White Marsh, VA?
- For ZIP code 23183, the average last spring frost (32°F) is April 1, based on NOAA 1991-2020 climate normals for the N, VA weather station. There is a 1-in-10 chance of a frost after April 15.
- When is the first frost in White Marsh, VA?
- The average first fall frost (32°F) is November 10. There is a 1-in-10 chance of frost by October 31, so tender plants are at risk from that point on.
- How long is the growing season in 23183?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 223 days long.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.