Frost dates for Suffolk Lake Kilby, VA
At Suffolk Lake Kilby, the median last spring frost (32°F) is Mar 27 and the median first fall frost is Nov 15, for a typical growing season of 233 days. For a 90% chance that the last frost has passed, wait until Apr 9. Nearby ZIP codes are in USDA hardiness zones 8a to 8b.
- Mar 27Last spring frost (median)50% chance of 32°F after this date
- Apr 9Safer planting date10% chance of 32°F after this date
- Nov 15First fall frost (median)50% chance of 32°F by this date
- 233 daysGrowing season (median)between 32°F freezes
Last spring frost dates
The chance that the temperature drops to the threshold after each date.
| Temperature | 90% chance later | 50% chance later | 10% chance later |
|---|---|---|---|
| 36°F | Mar 23 | Apr 6 | Apr 20 |
| 32°F | Mar 10 | Mar 27 | Apr 9 |
| 28°F | Feb 24 | Mar 15 | Mar 30 |
| 24°F | Feb 2 | Feb 28 | Mar 19 |
First fall frost dates
The chance that the temperature has dropped to the threshold by each date.
| Temperature | 10% chance by | 50% chance by | 90% chance by |
|---|---|---|---|
| 36°F | Oct 23 | Nov 3 | Nov 16 |
| 32°F | Nov 2 | Nov 15 | Dec 1 |
| 28°F | Nov 11 | Dec 1 | Dec 22 |
| 24°F | Nov 28 | Dec 18 | Jan 12 |
Growing season length
Days between the last spring and first fall freeze, as the length reached in 9, 5 and 1 out of 10 years.
| Temperature | 9 in 10 years at least | 5 in 10 years at least | 1 in 10 years at least |
|---|---|---|---|
| 36°F | 193 days | 210 days | 228 days |
| 32°F | 214 days | 233 days | 255 days |
| 28°F | 235 days | 259 days | 288 days |
| 24°F | 262 days | 291 days | 320 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 23434 | 8a | 10 to 15°F | 3 km |
| 23432 | 8a | 10 to 15°F | 15 km |
| 23487 | 8a | 10 to 15°F | 17 km |
| 23435 | 8a | 10 to 15°F | 17 km |
| 23321 | 8a | 10 to 15°F | 18 km |
| 23436 | 8b | 15 to 20°F | 20 km |
Not the official USDA Plant Hardiness Zone Map. Zones shown here are the values published in the USDA-ARS / Oregon State University PRISM Group 2023 ZIP code tables, shown unaltered. For the official interactive map, visit planthardiness.ars.usda.gov.
About this station
- NOAA station ID USC00448192, at 36.7297, -76.6014, elevation 7 m (22 ft).
- Data quality: Standard (24+ years of data), 30 years of freeze data.
- Average days per year at or below 32°F: 56.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Holland 1 E (16 km)
- Wallaceton-Lake Drummond (21 km)
- Norfolk S (37 km)
- Norfolk NAS (37 km)
- Norfolk Intl Airport (41 km)
- Fentress Naas (42 km)
- Langley AFB (45 km)
- Newport News Intl Airport (46 km)
Sources
- NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, annual/seasonal normals by station (version 1.0.1), file dated June 27, 2023; documentation.
- USDA Agricultural Research Service and PRISM Group, Oregon State University, 2023 Plant Hardiness Zone Map ZIP code tables (CONUS, Alaska, Hawaii, Puerto Rico), files dated November 17, 2023. Data © PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 1, 2026. Official map: planthardiness.ars.usda.gov.
- U.S. Census Bureau, 2024 Gazetteer ZIP Code Tabulation Areas file, dated August 30, 2024 (ZIP centroids used to find the nearest station).
Freeze dates are 30-year probabilities, not forecasts. Check your local forecast before planting tender plants.