Delta, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Delta, a borough in York County, Pennsylvania.
Today
76°F
Partly Sunny
Partly sunny, with a high near 76. East wind around 6 mph.
7-day forecast for Delta
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Partly Sunny | 6 mph E | 4% |
| Tonight | 61°F | Mostly Cloudy then Chance Rain Showers | 8 mph SE | 39% |
| Sunday | 76°F | Showers And Thunderstorms | 8 to 13 mph S | 78% |
| Sunday Night | 57°F | Showers And Thunderstorms | 3 to 12 mph W | 78% |
| Monday | 68°F | Slight Chance Rain Showers | 8 to 12 mph NE | 21% |
| Monday Night | 52°F | Chance Rain Showers | 6 to 12 mph NE | 41% |
| Tuesday | 61°F | Chance Rain Showers | 13 mph NE | 46% |
| Tuesday Night | 49°F | Chance Rain Showers | 14 mph NE | 46% |
| Wednesday | 61°F | Chance Rain Showers | 16 mph NE | 39% |
| Wednesday Night | 50°F | Chance Rain Showers | 12 to 16 mph NE | 37% |
| Thursday | 62°F | Chance Rain Showers | 14 mph NE | 37% |
| Thursday Night | 49°F | Chance Rain Showers | 8 to 13 mph N | 32% |
| Friday | 66°F | Chance Rain Showers | 13 mph N | 27% |
| Friday Night | 49°F | Slight Chance Rain Showers | 7 to 12 mph N | 21% |
Forecast source: National Weather Service (api.weather.gov) for Delta (39.727, -76.327). Updated through the day.
Growing snapshot for Delta
Last spring frost
Apr 3
First fall frost
Nov 6
Growing season
217 days
Hardiness zone
7a
More local growing data for Delta: nearby ZIP 17314 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Cross Roads
Dallastown
Dillsburg
Dover
East Prospect
East York
Emigsville
Fawn Grove
Felton
Franklintown
Glen Rock
Goldsboro
Grantley
Hallam
Hanover
Jacobus
Jefferson
Lewisberry
Loganville
Manchester
Mount Royal
Mount Wolf
New Freedom
New Market
New Salem
North York
Parkville
Pennville
Pleasureville
Queens Gate
Climate data from the nearest NOAA station, Conowingo Dam, Md (10.3 mi from Delta). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.