Oak Ridge, NC frost dates
From NOAA weather station Piedmont Triad Intl AP (USW00013723), elevation 890 ft. The nearest Census place to the station coordinates is Oak Ridge town, 6.0 miles away.
Summary
In the 1991–2020 record, the median last spring freeze (32°F) at Piedmont Triad Intl AP is Mar 30 and the median first fall freeze is Nov 5, for a typical freeze-free season of 220 days. In about 1 year in 10 the last spring freeze comes after Apr 14, and in about 1 year in 10 the first fall freeze arrives by Oct 25. The station averages 68 nights per year with a low of 32°F or colder.
Compared with the median of 187 North Carolina stations in this dataset, the median last freeze here is 2 days earlier than the state median (Apr 1), the median first freeze is 1 day later than the state median (Nov 4), and the growing season ranks #81 of 187 by length (longest = #1). The spread between the 90% and 10% spring dates is 33 days, a measure of how variable spring is here.
Freeze probability table
| Threshold | Last spring occurrence | First fall occurrence | Season length (days) 90% / 50% / 10% | ||||
|---|---|---|---|---|---|---|---|
| Early (90% chance of a later freeze) | Median (50%) | Cautious (10% chance of a later freeze) | Early (10% chance by then) | Median (50%) | Late (90% chance by then) | ||
| 36°F (light frost possible) | Mar 29 | Apr 13 | Apr 27 | Oct 14 | Oct 27 | Nov 7 | 177 / 198 / 217 |
| 32°F (freeze) | Mar 12 | Mar 30 | Apr 14 | Oct 25 | Nov 5 | Nov 21 | 201 / 220 / 243 |
| 28°F (hard freeze) | Feb 28 | Mar 18 | Apr 4 | Nov 3 | Nov 17 | Dec 4 | 222 / 244 / 270 |
Read the spring “Cautious” column as the safer planting date: only about 1 year in 10 has a freeze after it. NOAA computes these from daily minimum temperatures at the station; your yard can differ, especially in low spots or at a different elevation.
Planting calendar for Oak Ridge
Pick how much frost risk you accept. The calendar applies generic, extension-published timing rules to this station’s dates. See the rules and sources.
| Crop | Start seeds indoors | Plant outdoors (spring) | Latest fall planting (est.) | Days to harvest |
|---|
Fall estimates count back from the median first fall freeze (32°F for tender crops, 28°F hard freeze for cool-season crops) by the longer days-to-harvest figure. These are rough planning aids, not recommendations for any specific variety; check seed packets and your county extension office.
Towns that use this station as their nearest
Census places within 15 miles whose closest station in this dataset is Piedmont Triad Intl AP: Oak Ridge (6 mi), Summerfield (7 mi), Kernersville (8 mi), Stokesdale (9 mi).
Nearby stations
- Greensboro WTP, NC — 8 mi; median last freeze Apr 1, first freeze Nov 4
- High Pt, NC — 9 mi; median last freeze Mar 30, first freeze Nov 5
- Winston Salem Rynlds AP, NC — 16 mi; median last freeze Mar 26, first freeze Nov 9
- Randleman, NC — 21 mi; median last freeze Mar 29, first freeze Nov 6
- Rural Hall, NC — 22 mi; median last freeze Apr 6, first freeze Oct 31
About this station’s data
- Station ID: USW00013723 · Latitude 36.0969, longitude -79.9433 · Elevation 271 m (890 ft)
- NOAA completeness flag: S — Standard: meets WMO data-availability standards for 24 or more years. Years of data used: 30.
- Source file: USW00013723.csv (NOAA NCEI 1991–2020 annual/seasonal normals).
Raw values from the NOAA file (32°F)
| Field | Value |
|---|---|
ANN-TMIN-PRBLST-T32FP10 | 04/14 |
ANN-TMIN-PRBLST-T32FP50 | 03/30 |
ANN-TMIN-PRBLST-T32FP90 | 03/12 |
ANN-TMIN-PRBFST-T32FP10 | 10/25 |
ANN-TMIN-PRBFST-T32FP50 | 11/05 |
ANN-TMIN-PRBFST-T32FP90 | 11/21 |
ANN-TMIN-PRBGSL-T32FP10 | 243.0 |
ANN-TMIN-PRBGSL-T32FP50 | 220.0 |
ANN-TMIN-PRBGSL-T32FP90 | 201.0 |