Frost dates for 22003Annandale, VA
The average last spring frost in Annandale is April 14 and the average first fall frost is October 29, giving a typical growing season of about 198 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 14
- Average first fall frost
- Oct 29
- Growing season
- 198 days
Safer after Apr 28 (1-in-10 risk)
Possible by Oct 17 (1-in-10 risk)
Last frost typically in 162 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 11 · Apr 25 · May 10 | Oct 7 · Oct 19 · Nov 1 | 178 days | 100% |
| Frost / freeze (32°F) | Mar 30 · Apr 14 · Apr 28 | Oct 17 · Oct 29 · Nov 11 | 198 days | 100% |
| Hard freeze (28°F) | Mar 18 · Apr 2 · Apr 16 | Oct 26 · Nov 8 · Nov 23 | 221 days | 100% |
Planting calendar for Annandale
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 14 – May 20 |
| Tomatoes | Transplant outdoors | Apr 30 – Jul 9 |
| Peppers | Start seeds indoors | Mar 14 – Apr 14 |
| Peppers | Transplant outdoors | May 14 – Jun 14 |
| Eggplant | Start seeds indoors | Mar 31 – Apr 29 |
| Eggplant | Transplant outdoors | May 14 – Jun 14 |
| Cucumbers | Sow outdoors | May 14 – Jul 19 |
| Summer squash | Sow outdoors | Apr 30 – Jun 14 |
| Winter squash & pumpkins | Sow outdoors | May 14 – Jun 14 |
| Snap beans | Sow outdoors | Apr 30 – Aug 11 |
| Sweet corn | Sow outdoors | Apr 30 – Jul 9 |
| Watermelon & cantaloupe | Sow outdoors | May 14 – Jun 14 |
| Okra | Sow outdoors | May 7 – May 30 |
| Peas | Sow outdoors (spring) | Mar 14 – Apr 29 |
| Potatoes | Plant outdoors (spring) | Mar 14 – May 14 |
| Onions | Start seeds indoors (spring) | Jan 31 – Feb 27 |
| Onions | Transplant outdoors (spring) | Mar 31 – Apr 29 |
| Broccoli | Start seeds indoors (spring) | Feb 24 – Mar 30 |
| Broccoli | Transplant outdoors (spring) | Mar 31 – Apr 29 |
| Broccoli | Start seeds indoors (fall) | Jun 29 – Jul 9 |
| Broccoli | Transplant outdoors (fall) | Jul 29 – Aug 9 |
| Cabbage | Start seeds indoors (spring) | Feb 14 – Mar 14 |
| Cabbage | Transplant outdoors (spring) | Mar 14 – Apr 14 |
| Cabbage | Start seeds indoors (fall) | Jun 19 – Jul 19 |
| Cabbage | Transplant outdoors (fall) | Jul 19 – Aug 19 |
| Leaf lettuce | Sow outdoors (spring) | Mar 14 – May 30 |
| Leaf lettuce | Sow outdoors (fall) | Jul 19 – Sep 4 |
| Spinach | Sow outdoors (spring) | Mar 7 – Apr 20 |
| Spinach | Sow outdoors (fall) | Aug 5 – Sep 9 |
| Radishes | Sow outdoors (spring) | Mar 14 – May 4 |
| Radishes | Sow outdoors (fall) | Jul 19 – Sep 19 |
| Kale | Sow outdoors (spring) | Mar 31 – Apr 20 |
| Kale | Sow outdoors (fall) | Jul 12 – Aug 19 |
| Carrots | Sow outdoors (spring) | Apr 14 – May 30 |
| Carrots | Sow outdoors (fall) | Jun 19 – Aug 4 |
| Garlic | Plant outdoors (fall) | Oct 19 – Nov 19 |
Where these dates come from
ZIP code 22003 is matched to the NOAA station Vienna, VA, 9.4 km away, at 418 ft elevation (169 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Vienna, VA (used) | 418 ft | Apr 14 | Oct 29 |
| Dalecarlia Rsvr, MD | 150 ft | Apr 9 | Oct 31 |
| Washington Reagan Ap, VA | 10 ft | Mar 24 | Nov 18 |
| Oxon Hill, MD | 190 ft | Apr 3 | Nov 8 |
Frost dates near Annandale
- Springfield, VA 22151 · last Apr 14, first Oct 29
- Falls Church, VA 22042 · last Apr 14, first Oct 29
- Merrifield, VA 22116 · last Apr 14, first Oct 29
- Fairfax, VA 22031 · last Apr 14, first Oct 29
- Alexandria, VA 22312 · last Apr 3, first Nov 8
- Centreville, VA 20122 · last Apr 14, first Oct 29
- Chantilly, VA 20153 · last Apr 14, first Oct 29
- Herndon, VA 20192 · last Apr 14, first Oct 29
Frequently asked questions
- When is the last frost in Annandale, VA?
- For ZIP code 22003, the average last spring frost (32°F) is April 14, based on NOAA 1991-2020 climate normals for the Vienna, VA weather station. There is a 1-in-10 chance of a frost after April 28.
- When is the first frost in Annandale, VA?
- The average first fall frost (32°F) is October 29. There is a 1-in-10 chance of frost by October 17, so tender plants are at risk from that point on.
- How long is the growing season in 22003?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 198 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.