East Petersburg, Pennsylvania Weather
Solstice approaches — longest light. Day 88 of spring. Read this microseason across nine climate regions →
East Petersburg weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Light Drizzle44%0.01″76°62°—
- TuesdayJun 16Overcast——79°53°+3°
- WednesdayJun 17Light Drizzle22%—80°62°+1°
- ThursdayJun 18Thunderstorm52%0.01″86°65°+6°
- FridayJun 19Drizzle30%0.02″78°65°-8°
- SaturdayJun 20Overcast——76°57°-2°
- SundayJun 21Overcast10%—77°57°+1°
AQI 34 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±4 points). Ozone at AQI 37 now. With UV 6.7 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 23 around 1 PM.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 37 now. With UV 6.7 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 23 around 1 PM.
- Present
- AQI 37
- UV peak
- 6.7 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 23
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).








































A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:36 AM
- Moonset
- 8:50 PM
- In sign
- ♋︎ Cancer
Solstice approaches — longest light
East Petersburg at a glance
- Today vs. normal: 3°F below the seasonal normal for this latitude
- Last frost: April 17 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — East Petersburg
- Mon76°62°44%
- Tue79°53°0%
- Wed80°62°22%
- Thu86°65°52%
- Fri78°65°30%
- Sat76°57°5%
- Sun77°57°10%
- Mon63°58°32%
- Tue77°57°30%
- Wed77°53°12%
- Thu80°55°12%
- Fri79°53°39%
- Sat86°60°27%
- Sun90°68°35%
- Mon95°70°39%
- Tue86°70°36%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — East Petersburg
SPC has placed East Petersburg in the General Thunderstorms category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
Microseason · June 11–15
Solstice approaches — longest light
Sunrise before 5:30 AM; sunset nearly 8:30 PM.
Day 166 of 365 · Wedge 33 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
In East Petersburg, July runs warmest near 76°F and January coldest around 31°F, while September is the wettest month (4.8 inches) and February the driest (2.5 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 31° | 3.0″ | 6 |
| February | 33° | 2.5″ | 6 |
| March | 41° | 3.5″ | 7 |
| April | 53° | 3.5″ | 7 |
| May | 62° | 3.6″ | 7 |
| June | 71° | 4.1″ | 7 |
| July | 76° | 4.5″ | 7 |
| August | 74° | 3.6″ | 6 |
| September | 67° | 4.8″ | 6 |
| October | 55° | 4.2″ | 6 |
| November | 44° | 3.3″ | 5 |
| December | 36° | 3.5″ | 7 |
Regional context
East Petersburg swings from 31°F in January to 76°F in July (45°F) per NOAA NCEI 1991-2020 normals; precipitation in East Petersburg runs about 44.2 inches on roughly 76 measurable days.
No season owns East Petersburg's rain: September reaches 4.8 inches across 6.1 days and February keeps 2.5 inches on 5.9, an even spread through East Petersburg's year. That lines East Petersburg up with places like Landisville, PA, Rohrerstown, PA and Salunga, PA, fed by overlapping storm tracks.
Around mid-April, East Petersburg sheds its freezing nights — peas, lettuce, spinach, and radishes go into East Petersburg's beds. Heat-demanding starts go out a fortnight on in East Petersburg, after the soil warms and cold snaps clear. The season ends by mid-November in East Petersburg, once hard frosts set back in. East Petersburg's low ground holds frost later into spring than East Petersburg's benches, which run 3-5 days ahead.
Similar climates: Landisville, PA, Rohrerstown, PA, Salunga, PA, Lititz, PA, Lancaster, PA.
Frequently asked
- When does it freeze in East Petersburg?
- East Petersburg's last spring frost lands near mid-April, and in East Petersburg the first fall frost follows around mid-November.
- What is the rainy season in East Petersburg?
- Rainfall in East Petersburg peaks in September near 4.8 inches, out of about 44 inches annually.
- What is the warmest month in East Petersburg?
- On average July tops the year in East Petersburg at about 76°F.
- What is the coldest month in East Petersburg?
- The coldest stretch in East Petersburg falls in January, around 31°F on average.
- When can I start a vegetable garden in East Petersburg?
- Hardy spring crops go in near mid-April in East Petersburg; tender peppers and squash wait 10–14 days.
- How many rainy days does East Petersburg get?
- East Petersburg averages about 76 days with measurable rain or snow each year.
- What hardiness zone is East Petersburg?
- Since January in East Petersburg averages 31°F, East Petersburg's USDA zone follows that floor — confirm it by ZIP.
- What is the 10-day forecast for East Petersburg?
- East Petersburg's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in East Petersburg?
- See this week's day-by-day rain chances for East Petersburg in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in East Petersburg?
- Current conditions for East Petersburg and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the East Petersburg forecast updated?
- The East Petersburg forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in East Petersburg?
- Day length in East Petersburg peaks around the June solstice — earliest sunrise and latest sunset — and is shortest near the December solstice.
- How accurate is the weather forecast for East Petersburg?
- The next few days in East Petersburg's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Set in a warm-summer humid continental zone, East Petersburg, Pennsylvania swings from 31°F in the heart of winter to 76°F at midsummer — a 45°F arc.
In a typical year East Petersburg records about 44 inches of precipitation on around 76 days.
East Petersburg sits at 40.1°N; that 45°F seasonal swing frames planting windows and frost dates across East Petersburg.
ZIP codes in East Petersburg
- 17520