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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

WhenTempForecastWindPrecip
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

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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.