Delta, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Delta, a borough in York County, Pennsylvania.
This Afternoon
69°F
Mostly Sunny
Mostly sunny, with a high near 69. South wind around 7 mph.
7-day forecast for Delta
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Mostly Sunny | 7 mph S | 2% |
| Tonight | 50°F | Partly Cloudy | 5 mph S | 2% |
| Wednesday | 72°F | Mostly Sunny | 2 to 10 mph S | 2% |
| Wednesday Night | 59°F | Mostly Cloudy then Chance Rain Showers | 8 mph S | 28% |
| Thursday | 72°F | Rain Showers Likely | 7 to 10 mph S | 70% |
| Thursday Night | 61°F | Rain Showers Likely | 2 to 7 mph S | 71% |
| Friday | 69°F | Rain Showers Likely | 5 mph NW | 71% |
| Friday Night | 50°F | Rain Showers Likely | 2 to 6 mph NW | 65% |
| Saturday | 64°F | Mostly Sunny then Slight Chance Rain Showers | 7 to 10 mph NW | 15% |
| Saturday Night | 41°F | Slight Chance Rain Showers then Partly Cloudy | 8 mph NW | 15% |
| Sunday | 60°F | Mostly Sunny | 5 to 9 mph NW | 7% |
| Sunday Night | 40°F | Slight Chance Rain Showers | 5 to 9 mph W | 22% |
| Monday | 60°F | Slight Chance Rain Showers | 9 to 15 mph NW | 22% |
| Monday Night | 39°F | Slight Chance Rain Showers | 6 to 9 mph W | 18% |
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 Nov 3, 2026.