Youngstown, Ohio Weather
Fireflies rise from the lawn. Day 77 of spring. Read this microseason across nine climate regions →
Youngstown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——86°50°—
- FridayJun 5Overcast——86°59°0°
- SaturdayJun 6Showers88%0.16″81°66°-5°
- SundayJun 7Drizzle52%0.02″82°62°+1°
- MondayJun 8Overcast——81°56°-1°
- TuesdayJun 9Overcast——78°62°-3°
- WednesdayJun 10Overcast27%—83°59°+5°
Ozone at AQI 96 now. AQI flat over the last 6 hours (within ±3 points). With UV 8.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 106 by mid-afternoon.
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 96 now. With UV 8.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 106 by mid-afternoon.
- Present
- AQI 96
- UV peak
- 8.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 106
PM × Wind × Precip
PM2.5 at 4.7 µg/m³ (AQI 26) with a 0.96 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.96
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 3:54 AM
- Moonset
- 1:19 PM
- In sign
- ♒︎ Aquarius
Fireflies rise from the lawn
Youngstown at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: April 23 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 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 — Youngstown
SPC has placed Youngstown in the Slight Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3SLGTSlight Risk
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.
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
July brings Youngstown's warmest temperatures at around 72°F mean, while January delivers the coldest at roughly 27°F. Precipitation follows a different pattern, with July receiving the most rainfall at 4.3 inches and February seeing the least at 2.5 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 27° | 3.0″ | 8 |
| February | 29° | 2.5″ | 7 |
| March | 37° | 3.2″ | 8 |
| April | 49° | 3.8″ | 9 |
| May | 59° | 3.7″ | 8 |
| June | 68° | 3.9″ | 8 |
| July | 72° | 4.3″ | 7 |
| August | 70° | 3.5″ | 7 |
| September | 63° | 3.8″ | 6 |
| October | 52° | 3.3″ | 8 |
| November | 42° | 3.0″ | 7 |
| December | 32° | 3.2″ | 8 |
Regional context
Youngstown falls within a warm-summer humid continental climate region, sharing similar temperature ranges, seasonal patterns, and growing conditions with nearby cities in this climate zone.
Similar climates: Cleveland, OH, Akron, OH, Toledo, OH, Canton, OH, Lorain, OH.
Naturalist notes
American robins begin their spring territorial singing in late March as daylight hours extend past twelve hours.
Sugar maple buds swell and break in early April when soil temperatures climb above 40°F.
Frequently asked
- When does it freeze in Youngstown?
- Youngstown's last spring frost typically occurs around mid-April, while the first fall frost arrives around mid-November.
- What is the rainy season in Youngstown?
- July brings the most rainfall with about 4.3 inches on average, and the city receives roughly 41 inches annually.
- What is the warmest month in Youngstown?
- July typically records the warmest temperatures, averaging about 72°F.
- What is the coldest month in Youngstown?
- January typically brings the coldest weather, averaging about 27°F.
- When can I start a vegetable garden in Youngstown?
- Cool-season crops like peas and lettuce can be planted around the last spring frost in mid-April, while warm-season crops such as tomatoes and peppers should wait until 1–2 weeks after.
- How many rainy days does Youngstown get?
- Youngstown experiences about 92 rainy days per year on average.
- What hardiness zone is Youngstown?
- Youngstown's USDA hardiness zone depends on its lowest average winter temperature. Check the USDA's online lookup using the city ZIP for the current zone designation.
Climate
Youngstown, Ohio experiences a warm-summer humid continental climate. January temperatures hover near 27°F while July averages reach 72°F, creating a 45°F seasonal swing.
Throughout the year, Youngstown receives about 41 inches of precipitation spread over roughly 92 rainy days.
Local weather patterns emerge from the city's latitude at 41.1°N, its proximity to large water bodies, and elevation. These factors determine what grows here, when frost threatens, and the daily weather patterns residents experience.