Delta, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Delta, a borough in York County, Pennsylvania.
Overnight
56°F
Partly Cloudy
Partly cloudy, with a low around 56. North wind around 7 mph.
7-day forecast for Delta
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Partly Cloudy | 7 mph N | 0% |
| Saturday | 76°F | Mostly Sunny | 6 mph NE | 2% |
| Saturday Night | 62°F | Mostly Cloudy | 5 to 8 mph SE | 9% |
| Sunday | 78°F | Rain Showers Likely | 8 to 12 mph S | 74% |
| Sunday Night | 62°F | Showers And Thunderstorms Likely | 5 to 9 mph NW | 74% |
| Monday | 71°F | Chance Rain Showers | 10 mph NE | 40% |
| Monday Night | 57°F | Chance Rain Showers | 7 to 12 mph NE | 41% |
| Tuesday | 64°F | Chance Rain Showers | 14 mph NE | 50% |
| Tuesday Night | 52°F | Chance Rain Showers | 14 mph NE | 50% |
| Wednesday | 61°F | Chance Rain Showers | 14 mph NE | 42% |
| Wednesday Night | 53°F | Chance Showers And Thunderstorms | 10 to 14 mph NE | 44% |
| Thursday | 63°F | Chance Showers And Thunderstorms | 13 mph NE | 43% |
| Thursday Night | 52°F | Chance Showers And Thunderstorms | 6 to 10 mph N | 38% |
| Friday | 68°F | Chance Rain Showers | 10 mph N | 26% |
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.