Woodlyn, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Woodlyn weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast32%—103°81°—
- SundayJul 5Heavy Rain87%0.85″98°72°-5°
- MondayJul 6T-storm w/ Hail87%0.28″80°66°-18°
- TuesdayJul 7Light Drizzle73%0.01″68°63°-12°
- WednesdayJul 8Partly Cloudy16%—85°60°+17°
- ThursdayJul 9Mostly Clear28%—91°66°+6°
- FridayJul 10Light Drizzle33%0.01″94°72°+3°
AQI 64 (Moderate), driven by PM2.5. AQI up 8 over the last 6 hours (gradual rise). PM2.5 at 20.0 µg/m³ (AQI 71) with a 0.89 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 6 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 45 now. With UV 4.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 28 around 1 PM.
- Present
- AQI 45
- UV peak
- 4.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 28
PM × Wind × Precip
PM2.5 at 20.0 µg/m³ (AQI 71) with a 0.89 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.89
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:54 PM
- Moonset
- 10:05 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Woodlyn at a glance
- Today vs. normal: 14°F above the seasonal normal for this latitude
- Last frost: April 15 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 19094
16-Day Forecast — Woodlyn
- Sat103°81°32%
- Sun98°72°87%
- Mon80°66°87%
- Tue68°63°73%
- Wed85°60°16%
- Thu91°66°28%
- Fri94°72°33%
- Sat84°72°34%
- Sun75°69°33%
- Mon73°67°16%
- Tue85°66°17%
- Wed91°68°24%
- Thu95°74°23%
- Fri96°77°34%
- Sat83°71°39%
- Sun90°71°35%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, 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 — Woodlyn
SPC has placed Woodlyn in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWSLGTSlight Risk
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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 · July 1–5
Cicadas claim the afternoon
Annual cicada buzz begins, peaking in the heat of the day.
Day 185 of 365 · Wedge 37 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
The year in Woodlyn tops out in July (~77°F) and dips lowest in January (~31°F), with December wettest at 4.2 inches and February driest at 2.9 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 31° | 3.4″ | 13 |
| February | 33° | 2.9″ | 12 |
| March | 42° | 3.7″ | 15 |
| April | 53° | 3.9″ | 17 |
| May | 61° | 3.7″ | 17 |
| June | 71° | 3.7″ | 17 |
| July | 77° | 3.3″ | 16 |
| August | 75° | 4.0″ | 17 |
| September | 69° | 3.7″ | 13 |
| October | 58° | 3.0″ | 11 |
| November | 45° | 3.6″ | 13 |
| December | 36° | 4.2″ | 13 |
Regional context
In Woodlyn, NOAA NCEI 1991-2020 normals put January near 31°F and July near 77°F — a 46°F seasonal arc — with about 43.1 inches of precipitation over 173 rainy or snowy days.
Rainfall in Woodlyn stays even across the calendar: December tops out at 4.2 inches over 13.0 rainy days, and February still logs 2.9 inches across 12.4 — a narrow range for Woodlyn. That lines Woodlyn up with places like Ridley Park, PA, Folsom, PA and Eddystone, PA, fed by overlapping storm tracks.
Around mid-April, Woodlyn sheds its freezing nights — peas, lettuce, spinach, and radishes go into Woodlyn's beds. Woodlyn's heat-lovers — tomatoes, peppers, squash — hold off until Woodlyn's frost risk clears, 10-14 days on. The season ends by mid-November in Woodlyn, once hard frosts set back in. Woodlyn's low ground holds frost later into spring than Woodlyn's benches, which run 3-5 days ahead.
Similar climates: Ridley Park, PA, Folsom, PA, Eddystone, PA, Swarthmore, PA, Rutledge, PA.
Frequently asked
- When does it freeze in Woodlyn?
- In Woodlyn, expect the last spring frost near mid-April; Woodlyn's first autumn frost comes around mid-November.
- What is the rainy season in Woodlyn?
- Rainfall in Woodlyn peaks in December near 4.2 inches, out of about 43 inches annually.
- What is the warmest month in Woodlyn?
- Woodlyn peaks in July, when the mean runs near 77°F.
- What is the coldest month in Woodlyn?
- January is Woodlyn's coldest month, averaging about 31°F.
- When can I start a vegetable garden in Woodlyn?
- Around mid-April, start frost-hardy crops in Woodlyn; tomatoes and basil belong a fortnight later.
- How many rainy days does Woodlyn get?
- Expect roughly 173 wet days a year in Woodlyn.
- What hardiness zone is Woodlyn?
- Because Woodlyn bottoms near 31°F in January, that winter low sets Woodlyn's USDA zone — verify by ZIP.
- What is the 10-day forecast for Woodlyn?
- Woodlyn'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 Woodlyn?
- See this week's day-by-day rain chances for Woodlyn in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Woodlyn?
- Current conditions for Woodlyn and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Woodlyn forecast updated?
- The Woodlyn forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Woodlyn?
- Today's sunrise and sunset times for Woodlyn are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Woodlyn?
- The next few days in Woodlyn's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
In Woodlyn, Pennsylvania, the warm-summer humid continental climate runs from about 31°F in January to 77°F in July, a 46°F seasonal range.
Rain and snow bring Woodlyn roughly 43 inches a year across approximately 173 measurable-precipitation days.
From 39.9°N, Woodlyn sees a 46°F seasonal swing that governs Woodlyn's planting and frost windows.
ZIP codes in Woodlyn
- 19094
- 19022
- 19033
- 19081