Frost dates for 22471Hartwood, VA
The average last spring frost in Hartwood is April 6 and the average first fall frost is November 1, giving a typical growing season of about 207 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 6
- Average first fall frost
- Nov 1
- Growing season
- 207 days
Safer after Apr 22 (1-in-10 risk)
Possible by Oct 19 (1-in-10 risk)
Last frost typically in 154 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) | Apr 5 · Apr 21 · May 8 | Oct 10 · Oct 22 · Nov 3 | 184 days | 100% |
| Frost / freeze (32°F) | Mar 23 · Apr 6 · Apr 22 | Oct 19 · Nov 1 · Nov 12 | 207 days | 100% |
| Hard freeze (28°F) | Mar 11 · Mar 27 · Apr 8 | Oct 30 · Nov 11 · Nov 28 | 230 days | 100% |
Planting calendar for Hartwood
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 6 – May 12 |
| Tomatoes | Transplant outdoors | Apr 22 – Jul 12 |
| Peppers | Start seeds indoors | Mar 6 – Apr 6 |
| Peppers | Transplant outdoors | May 6 – Jun 6 |
| Eggplant | Start seeds indoors | Mar 23 – Apr 21 |
| Eggplant | Transplant outdoors | May 6 – Jun 6 |
| Cucumbers | Sow outdoors | May 6 – Jul 22 |
| Summer squash | Sow outdoors | Apr 22 – Jun 6 |
| Winter squash & pumpkins | Sow outdoors | May 6 – Jun 6 |
| Snap beans | Sow outdoors | Apr 22 – Aug 14 |
| Sweet corn | Sow outdoors | Apr 22 – Jul 12 |
| Watermelon & cantaloupe | Sow outdoors | May 6 – Jun 6 |
| Okra | Sow outdoors | Apr 29 – May 22 |
| Peas | Sow outdoors (spring) | Mar 6 – Apr 21 |
| Potatoes | Plant outdoors (spring) | Mar 6 – May 6 |
| Onions | Start seeds indoors (spring) | Jan 23 – Feb 19 |
| Onions | Transplant outdoors (spring) | Mar 23 – Apr 21 |
| Broccoli | Start seeds indoors (spring) | Feb 16 – Mar 22 |
| Broccoli | Transplant outdoors (spring) | Mar 23 – Apr 21 |
| Broccoli | Start seeds indoors (fall) | Jul 2 – Jul 12 |
| Broccoli | Transplant outdoors (fall) | Aug 1 – Aug 12 |
| Cabbage | Start seeds indoors (spring) | Feb 6 – Mar 6 |
| Cabbage | Transplant outdoors (spring) | Mar 6 – Apr 6 |
| Cabbage | Start seeds indoors (fall) | Jun 22 – Jul 22 |
| Cabbage | Transplant outdoors (fall) | Jul 22 – Aug 22 |
| Leaf lettuce | Sow outdoors (spring) | Mar 6 – May 22 |
| Leaf lettuce | Sow outdoors (fall) | Jul 22 – Sep 7 |
| Spinach | Sow outdoors (spring) | Feb 27 – Apr 12 |
| Spinach | Sow outdoors (fall) | Aug 8 – Sep 12 |
| Radishes | Sow outdoors (spring) | Mar 6 – Apr 26 |
| Radishes | Sow outdoors (fall) | Jul 22 – Sep 22 |
| Kale | Sow outdoors (spring) | Mar 23 – Apr 12 |
| Kale | Sow outdoors (fall) | Jul 15 – Aug 22 |
| Carrots | Sow outdoors (spring) | Apr 6 – May 22 |
| Carrots | Sow outdoors (fall) | Jun 22 – Aug 7 |
| Garlic | Plant outdoors (fall) | Oct 22 – Nov 22 |
Where these dates come from
ZIP code 22471 is matched to the NOAA station Fredericksburg Sewage, VA, 16.9 km away, at 60 ft elevation (271 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Fredericksburg Sewage, VA (used) | 60 ft | Apr 6 | Nov 1 |
| Quantico Mcas, VA | 10 ft | Mar 28 | Nov 8 |
| Corbin, VA | 220 ft | Apr 14 | Oct 27 |
| Warrenton 3 Se, VA | 500 ft | Apr 9 | Nov 1 |
Frost dates near Hartwood
- Fredericksburg, VA 22406 · last Apr 6, first Nov 1
- Goldvein, VA 22720 · last Apr 9, first Nov 1
- Stafford, VA 22556 · last Mar 28, first Nov 8
- Somerville, VA 22739 · last Apr 9, first Nov 1
- Richardsville, VA 22736 · last Apr 6, first Nov 1
- Ruby, VA 22545 · last Apr 9, first Nov 1
- Garrisonville, VA 22463 · last Mar 28, first Nov 8
- Sumerduck, VA 22742 · last Apr 9, first Nov 1
Frequently asked questions
- When is the last frost in Hartwood, VA?
- For ZIP code 22471, the average last spring frost (32°F) is April 6, based on NOAA 1991-2020 climate normals for the Fredericksburg Sewage, VA weather station. There is a 1-in-10 chance of a frost after April 22.
- When is the first frost in Hartwood, VA?
- The average first fall frost (32°F) is November 1. There is a 1-in-10 chance of frost by October 19, so tender plants are at risk from that point on.
- How long is the growing season in 22471?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 207 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.