Grantsboro, NC frost dates
From NOAA weather station Reelsboro (USC00317170), elevation 45 ft. The nearest Census place to the station coordinates is Grantsboro town, 4.1 miles away.
Summary
In the 1991–2020 record, the median last spring freeze (32°F) at Reelsboro is Mar 21 and the median first fall freeze is Nov 17, for a typical freeze-free season of 242 days. In about 1 year in 10 the last spring freeze comes after Apr 5, and in about 1 year in 10 the first fall freeze arrives by Nov 1. The station averages 37 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 11 days earlier than the state median (Apr 1), the median first freeze is 13 days later than the state median (Nov 4), and the growing season ranks #16 of 187 by length (longest = #1). The spread between the 90% and 10% spring dates is 32 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 19 | Apr 3 | Apr 18 | Oct 23 | Nov 4 | Nov 19 | 197 / 216 / 238 |
| 32°F (freeze) | Mar 4 | Mar 21 | Apr 5 | Nov 1 | Nov 17 | Dec 6 | 220 / 242 / 268 |
| 28°F (hard freeze) | Feb 12 | Mar 8 | Mar 27 | Nov 12 | Dec 1 | Jan 1 | 245 / 273 / 304 |
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 Grantsboro
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 Reelsboro: Fairfield Harbour (5 mi).
Nearby stations
- Bayboro 3 SW, NC — 6 mi; median last freeze Mar 30, first freeze Nov 8
- New Bern Craven Co AP, NC — 9 mi; median last freeze Mar 23, first freeze Nov 15
- Perrytown, NC — 11 mi; median last freeze Mar 20, first freeze Nov 20
- Cherry Point MCAS, NC — 16 mi; median last freeze Mar 19, first freeze Nov 22
- Aurora 6 N, NC — 19 mi; median last freeze Mar 8, first freeze Dec 5
About this station’s data
- Station ID: USC00317170 · Latitude 35.1311, longitude -76.9153 · Elevation 14 m (45 ft)
- NOAA completeness flag: R — Representative: meets WMO standards for 10 or more years; gaps filled from surrounding stations. Years of data used: 14.
- Source file: USC00317170.csv (NOAA NCEI 1991–2020 annual/seasonal normals).
Raw values from the NOAA file (32°F)
| Field | Value |
|---|---|
ANN-TMIN-PRBLST-T32FP10 | 04/05 |
ANN-TMIN-PRBLST-T32FP50 | 03/21 |
ANN-TMIN-PRBLST-T32FP90 | 03/04 |
ANN-TMIN-PRBFST-T32FP10 | 11/01 |
ANN-TMIN-PRBFST-T32FP50 | 11/17 |
ANN-TMIN-PRBFST-T32FP90 | 12/06 |
ANN-TMIN-PRBGSL-T32FP10 | 268.0 |
ANN-TMIN-PRBGSL-T32FP50 | 242.0 |
ANN-TMIN-PRBGSL-T32FP90 | 220.0 |