Siler City, NC frost dates
From NOAA weather station Siler City 2 N (USC00317924), elevation 610 ft. The station is named for Siler City, and its coordinates are 2.3 miles from the Census Bureau’s internal point for Siler City town.
Summary
In the 1991–2020 record, the median last spring freeze (32°F) at Siler City 2 N is Mar 31 and the median first fall freeze is Nov 4, for a typical freeze-free season of 220 days. In about 1 year in 10 the last spring freeze comes after Apr 13, and in about 1 year in 10 the first fall freeze arrives by Oct 23. The station averages 73 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 1 day earlier than the state median (Apr 1), the median first freeze is the same day as the state median (Nov 4), and the growing season ranks #82 of 187 by length (longest = #1). The spread between the 90% and 10% spring dates is 30 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 29 | Oct 15 | Oct 27 | Nov 7 | 175 / 196 / 216 |
| 32°F (freeze) | Mar 14 | Mar 31 | Apr 13 | Oct 23 | Nov 4 | Nov 20 | 200 / 220 / 242 |
| 28°F (hard freeze) | Feb 27 | Mar 17 | Apr 3 | Nov 3 | Nov 16 | Dec 8 | 221 / 245 / 273 |
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 Siler City
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 Siler City 2 N: Siler City (2 mi), Staley (6 mi), Liberty (9 mi), Bennett (13 mi), Goldston (14 mi).
Nearby stations
- Cane Creek Rsvr, NC — 18 mi; median last freeze Apr 6, first freeze Nov 1
- Randleman, NC — 19 mi; median last freeze Mar 29, first freeze Nov 6
- Burlington Alamance AP, NC — 20 mi; median last freeze Apr 1, first freeze Nov 2
- Burlington Fire Stn #5, NC — 21 mi; median last freeze Mar 29, first freeze Nov 9
- Asheboro 2 W, NC — 21 mi; median last freeze Apr 5, first freeze Oct 31
About this station’s data
- Station ID: USC00317924 · Latitude 35.7608, longitude -79.4625 · Elevation 186 m (610 ft)
- NOAA completeness flag: S — Standard: meets WMO data-availability standards for 24 or more years. Years of data used: 28.
- Source file: USC00317924.csv (NOAA NCEI 1991–2020 annual/seasonal normals).
Raw values from the NOAA file (32°F)
| Field | Value |
|---|---|
ANN-TMIN-PRBLST-T32FP10 | 04/13 |
ANN-TMIN-PRBLST-T32FP50 | 03/31 |
ANN-TMIN-PRBLST-T32FP90 | 03/14 |
ANN-TMIN-PRBFST-T32FP10 | 10/23 |
ANN-TMIN-PRBFST-T32FP50 | 11/04 |
ANN-TMIN-PRBFST-T32FP90 | 11/20 |
ANN-TMIN-PRBGSL-T32FP10 | 242.0 |
ANN-TMIN-PRBGSL-T32FP50 | 220.0 |
ANN-TMIN-PRBGSL-T32FP90 | 200.0 |