Washington, NC frost dates
From NOAA weather station Washington WWTP 4W (USC00319100), elevation 10 ft. The station is named for Washington, and its coordinates are 1.1 miles from the Census Bureau’s internal point for Washington city.
Summary
In the 1991–2020 record, the median last spring freeze (32°F) at Washington WWTP 4W is Mar 22 and the median first fall freeze is Nov 15, for a typical freeze-free season of 237 days. In about 1 year in 10 the last spring freeze comes after Apr 7, and in about 1 year in 10 the first fall freeze arrives by Nov 3. The station averages 47 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 10 days earlier than the state median (Apr 1), the median first freeze is 11 days later than the state median (Nov 4), and the growing season ranks #25 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 18 | Apr 3 | Apr 19 | Oct 26 | Nov 5 | Nov 19 | 198 / 215 / 236 |
| 32°F (freeze) | Mar 5 | Mar 22 | Apr 7 | Nov 3 | Nov 15 | Dec 1 | 216 / 237 / 262 |
| 28°F (hard freeze) | Feb 15 | Mar 8 | Mar 27 | Nov 11 | Nov 27 | Dec 23 | 239 / 265 / 294 |
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 Washington
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 Washington WWTP 4W: Washington (1 mi), Washington Park (3 mi), Chocowinity (3 mi), Cypress Landing (4 mi), River Road (6 mi), Grimesland (7 mi), Pinetown (13 mi).
Nearby stations
- Greenville, NC — 19 mi; median last freeze Mar 27, first freeze Nov 8
- Aurora 6 N, NC — 20 mi; median last freeze Mar 8, first freeze Dec 5
- Williamston 1 E, NC — 21 mi; median last freeze Mar 20, first freeze Nov 12
- Belhaven 3 NE, NC — 27 mi; median last freeze Mar 25, first freeze Nov 11
- Reelsboro, NC — 30 mi; median last freeze Mar 21, first freeze Nov 17
About this station’s data
- Station ID: USC00319100 · Latitude 35.5525, longitude -77.0722 · Elevation 3 m (10 ft)
- NOAA completeness flag: R — Representative: meets WMO standards for 10 or more years; gaps filled from surrounding stations. Years of data used: 15.
- Source file: USC00319100.csv (NOAA NCEI 1991–2020 annual/seasonal normals).
Raw values from the NOAA file (32°F)
| Field | Value |
|---|---|
ANN-TMIN-PRBLST-T32FP10 | 04/07 |
ANN-TMIN-PRBLST-T32FP50 | 03/22 |
ANN-TMIN-PRBLST-T32FP90 | 03/05 |
ANN-TMIN-PRBFST-T32FP10 | 11/03 |
ANN-TMIN-PRBFST-T32FP50 | 11/15 |
ANN-TMIN-PRBFST-T32FP90 | 12/01 |
ANN-TMIN-PRBGSL-T32FP10 | 262.0 |
ANN-TMIN-PRBGSL-T32FP50 | 237.0 |
ANN-TMIN-PRBGSL-T32FP90 | 216.0 |