Rossmoyne, Ohio Weather
Sun climbs to its northern throne. Day 86 of spring. Read this microseason across nine climate regions →
Rossmoyne weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 13Overcast——88°61°—
- SundayJun 14Light Drizzle56%0.02″79°64°-9°
- MondayJun 15Overcast——74°49°-5°
- TuesdayJun 16Light Drizzle14%—77°55°+3°
- WednesdayJun 17Showers46%0.01″81°60°+4°
- ThursdayJun 18Showers60%0.77″73°67°-8°
- FridayJun 19Overcast35%—77°61°+4°
AQI 30 (Good), driven by PM2.5. AQI down 14 over the last 6 hours (gradual decline). PM2.5 at 9.0 µg/m³ (AQI 50) with a 0.99 fine-to-coarse ratio and 3 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 3 PM.
What's driving it
PM × Wind × Precip
PM2.5 at 9.0 µg/m³ (AQI 50) with a 0.99 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.99
- Wind
- calm
- 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).








































Cut your thistles before St. John, you will have two instead of one.
- Moonrise
- 4:22 AM
- Moonset
- —
- In sign
- ♉︎ Taurus
Sun climbs to its northern throne
Rossmoyne at a glance
- Today vs. normal: 14°F below the seasonal normal for this latitude
- Last frost: April 11 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Prune spring-blooming shrubs after flowers fade.
15-Day Forecast — Rossmoyne
- Sat88°61°3%
- Sun79°64°56%
- Mon74°49°1%
- Tue77°55°14%
- Wed81°60°46%
- Thu73°67°60%
- Fri77°61°35%
- Sat76°52°21%
- Sun83°58°37%
- Mon75°63°32%
- Tue79°55°18%
- Wed84°58°32%
- Thu85°66°27%
- Fri79°60°32%
- Sat75°54°24%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 13, 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 — Rossmoyne
SPC has placed Rossmoyne in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
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
Sun climbs to its northern throne
Days lengthen toward solstice; longest light lingers until after 8 PM, heat building steadily.
Day 164 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
Rossmoyne peaks at about 78°F in July and bottoms near 30°F in January; May brings the heaviest rain (4.4 inches) and September the least (2.3 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 30° | 3.0″ | 16 |
| February | 34° | 3.0″ | 15 |
| March | 43° | 4.1″ | 17 |
| April | 55° | 4.2″ | 18 |
| May | 63° | 4.4″ | 18 |
| June | 73° | 3.6″ | 16 |
| July | 78° | 3.4″ | 17 |
| August | 77° | 3.0″ | 16 |
| September | 70° | 2.3″ | 13 |
| October | 58° | 2.6″ | 11 |
| November | 44° | 3.1″ | 14 |
| December | 34° | 3.9″ | 16 |
Frequently asked
- When does it freeze in Rossmoyne?
- Rossmoyne's last spring frost lands near mid-April, and in Rossmoyne the first fall frost follows around mid-November.
- What is the rainy season in Rossmoyne?
- Rainfall in Rossmoyne peaks in May near 4.4 inches, out of about 41 inches annually.
- What is the warmest month in Rossmoyne?
- The warmest stretch in Rossmoyne comes in July, around 78°F on average.
- What is the coldest month in Rossmoyne?
- On average January is the chilliest month in Rossmoyne, about 30°F.
- When can I start a vegetable garden in Rossmoyne?
- Rossmoyne's last frost (mid-April) cues hardy greens; in Rossmoyne, hold heat-lovers two weeks past.
- How many rainy days does Rossmoyne get?
- Rossmoyne averages about 187 days with measurable rain or snow each year.
- What hardiness zone is Rossmoyne?
- Rossmoyne's USDA zone comes from its January mean (30°F); enter the ZIP on the USDA lookup for the number.
- What is the 10-day forecast for Rossmoyne?
- Rossmoyne'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 Rossmoyne?
- See this week's day-by-day rain chances for Rossmoyne in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Rossmoyne?
- Current conditions for Rossmoyne and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Rossmoyne forecast updated?
- The Rossmoyne forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Rossmoyne?
- Day length in Rossmoyne peaks around the June solstice — earliest sunrise and latest sunset — and is shortest near the December solstice.
- How accurate is the weather forecast for Rossmoyne?
- The next few days in Rossmoyne's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Rossmoyne, Ohio occupies a humid subtropical zone, with January means near 30°F and July around 78°F — a 48°F swing.
Across the year, Rossmoyne collects about 41 inches of precipitation over roughly 187 days with measurable rain or snow.
Latitude 39.2°N gives Rossmoyne its 48°F swing, and with it the rhythm of Rossmoyne's growing season.
ZIP codes in Rossmoyne
- 45242
- 45236