Weather StoryAlmanac, microseasons, and the day's weather story.

Greenhills, Ohio Weather

Sun climbs to its northern throne. Day 86 of spring. Read this microseason across nine climate regions →

Greenhills weather forecast — hour by hour, 7-day outlook, NOAA radar

Greenhills, OH
Saturday, June 13 at 4:39 AM
61
°
Clear
Feels like
60°
Humidity
76%
Wind
5 mph
Sunrise
2:10 AM
Sunset
5:05 PM
Greenhills, OH
Hour by hour · 24h
24-Hour ForecastGreenhills, OH: 24-hour forecast. Temperatures range from 61 to 88 degrees Fahrenheit.
L 61°H 88°
Greenhills, OH
7-day forecast
  1. Today
    Jun 13
    Overcast
    —
    —
    88°61°—
  2. Sunday
    Jun 14
    Light Drizzle
    52%
    0.05″
    78°63°-10°
  3. Monday
    Jun 15
    Overcast
    —
    —
    73°52°-5°
  4. Tuesday
    Jun 16
    Light Drizzle
    15%
    —
    76°57°+3°
  5. Wednesday
    Jun 17
    Light Showers
    47%
    0.04″
    81°62°+5°
  6. Thursday
    Jun 18
    Showers
    62%
    0.98″
    72°67°-9°
  7. Friday
    Jun 19
    Overcast
    32%
    —
    76°62°+4°
Greenhills, OH
Next 24 hours · Cool now
HOT 90°55°75°95°12a6a12p6pnow 61°high 88°low 61°PRECIP %
Greenhills, OH
Anemometer · 24h winds · from true
NESW
From · True
W
273° · veering 63°
Direction
W
273°
Sustained
5
mph
Gust
5
mph
Peak 24h
17
avg 6
Beaufort · 2 · LIGHT BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 6 · pk 17 @ 4:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 205SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Greenhills, OH
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
986.4
-0.6 mb in 3h · falling · 29.13 inHg
Now
986.4
mb
3h
-0.6
mb
12h
+1.4
mb
24h
+4.1
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 982–987
9759809859909951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW987.1982.4986.5
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Greenhills, OH
Air quality
30
AQI
Good
↓-14 in 6h▲Peak ~37 @ 3 PM

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 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 3 PM.

PM 2.5DRIVERGood
9.0μg/m³
PM 10Good
9μg/m³
NO₂Good
22μg/m³
OzoneGood
39μg/m³
UV IndexLow
0.0

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 5 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.99
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).

7-DAY AQI TREND50100SATSUNMONTUEWEDTHUFRISAT7-DAY PM2.5 TREND · μg/m³300
Greenhills, OH
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
51.0mi
UNLIMITED
93 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
08:39 UTC · Greenhills, OH · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
08:39 UTC · Greenhills, OH · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Greenhills, OH
Satellite · infrared · animated
Greenhills, OH
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Greenhills, OH
Almanac · Saturday, June 13
Cut your thistles before St. John, you will have two instead of one.
Civil dawn
5:40 AM
Sunrise
2:10 AM
Daylight
14h 55m
Sunset
5:05 PM
Civil dusk
9:38 PM
Planting note
Prune spring-blooming shrubs after flowers fade.
Greenhills, OH
The moon
Waning Crescent
4% illuminated
Moonrise
4:22 AM
Moonset
—
In sign
♉︎ Taurus
Greenhills, OH
Microseason
Jun 11–15

Sun climbs to its northern throne

plant
Jan 145% of the yearDec 31

Read this microseason across nine climate regions →

Greenhills at a glance

  • Today vs. normal: 15°F below the seasonal normal for this latitude
  • Last frost: April 12 (climatological average for this latitude)
  • Microseason: Jun 11–15
  • Planting window: Prune spring-blooming shrubs after flowers fade.

15-Day Forecast — Greenhills

  1. Sat88°61°3%
  2. Sun78°63°52%
  3. Mon73°52°1%
  4. Tue76°57°15%
  5. Wed81°62°47%
  6. Thu72°67°62%
  7. Fri76°62°32%
  8. Sat75°54°21%
  9. Sun81°60°36%
  10. Mon76°63°32%
  11. Tue77°57°17%
  12. Wed81°60°26%
  13. Thu85°67°23%
  14. Fri78°61°26%
  15. Sat73°56°23%

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 — Greenhills

SPC has placed Greenhills 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.

January 1–5: Frost quiets the live oaks.January 6–10: Still water thickens with ice.January 11–15: Springs begin to move beneath ice.January 16–20: Cardinal dawn calls grow bolder.January 21–25: Late January thaw pulses.January 26–31: Last freeze locks the land.February 1–5: February's lengthening light.February 6–10: Warming winds thaw the margin.February 11–15: Magnolia blooms break the gray.February 16–20: Mockingbirds resume the dawn chorus.February 21–25: Rain replaces the last snow.February 26–28: Mist clings to greening valleys.March 1–5: The green pulse awakens.March 6–10: Hibernators emerge to call.March 11–15: Dogwood and redbud ignite.March 16–20: Swallowtails emerge from winter silk.March 21–25: Light crowns the dogwood canopy.March 26–31: Redbud cascades over the thaw.April 1–5: Thunder announces the wet season.April 6–10: Barn swallows carve the warming sky.April 11–15: Magnolia blooms and falls in a breath.April 16–20: First rainbows arch over thunderheads.April 21–25: Reeds push through marsh water.April 26–30: Frost retreats; seedlings rise free.May 1–5: Warblers flood the canopy in waves.May 6–10: Tulip poplar lights the forest crown.May 11–15: Shad pulse upstream through rapids.May 16–20: Roses open on the Piedmont edge.May 21–25: Fireflies scout the humid dusk.May 26–31: Frog choruses rise from every wetland.June 1–5: Fireflies pulse through the magnolias.June 6–10: Kudzu climbs deeper into green.June 11–15: Sun climbs to its northern throne.June 16–20: Heat settles and the rain begins.June 21–25: The longest day turns toward shadow.June 26–30: Fireflies drift through Spanish moss.July 1–5: Cicadas claim the scorching afternoon.July 6–10: Thunderheads boil and break at dusk.July 11–15: Thunder builds each drowsy afternoon.July 16–20: Cicadas claim the long noon.July 21–25: Dog days drape the earth in haze.July 26–31: Katydids begin their rasping chorus.August 1–5: Dusk arrives one minute earlier each night.August 6–10: Meteorological summer's turning page.August 11–15: Cool winds gather at the margins.August 16–20: Dog-day cicadas rise.August 21–25: Heat breaks in creek beds.August 26–31: Monarchs gather strength.September 1–5: Harvests begin in earnest.September 6–10: Dew beads on resurrection fern.September 11–15: Raptors trail the thermals.September 16–20: Day and dark find balance.September 21–25: Thunder quiets the land.September 26–30: Insects retreat below.October 1–5: Swamp waters recede.October 6–10: Maples ignite the ridge.October 11–15: Asters crown the meadows.October 16–20: Crickets sing at dusk.October 21–25: Frost paints the garden.October 26–31: Light rains whisper down.November 1–5: Sweetgum Turns Crimson.November 6–10: Camellia Blooms Break Through.November 11–15: Earth Stiffens Underfoot.November 16–20: Bare Limbs Hold the Light.November 21–25: First Frost Grips the High Ground.November 26–30: North Wind Strips the Last Leaves.December 1–5: Darkness Falls Before Dinner.December 6–10: Winter Locks the Land.December 11–15: Wildlife Retreats to Shelter.December 16–20: Ice Edges Deepen Inward.December 21–25: The Sun Begins its Return.December 26–31: The Year Turns in Silence.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

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

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
February——
March——
Aprillettuce, peas, spinach, radishes—
Maylettuce, peas, spinach, radishes, tomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
Julytomatoes, peppers, beans, squashtomatoes, beans, summer squash
August—tomatoes, beans, summer squash
Septemberfall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
November——
December——

A year in weather

The year in Greenhills tops out in July (~78°F) and dips lowest in January (~30°F), with May wettest at 4.4 inches and September driest at 2.3 inches.

MonthMean tempPrecipRainy days
January30°3.0″16
February34°3.0″15
March43°4.1″17
April55°4.2″18
May63°4.4″18
June73°3.6″16
July78°3.4″17
August77°3.0″16
September70°2.3″13
October58°2.6″11
November44°3.1″14
December34°3.9″16

Regional context

Greenhills's climate, from NOAA NCEI 1991-2020 station normals, pairs 30°F Januarys with 78°F Julys — a 47°F swing. About 40.6 inches of precipitation falls over roughly 187 days a year.

Rainfall in Greenhills stays even across the calendar: May tops out at 4.4 inches over 18.2 rainy days, and September still logs 2.3 inches across 13.0 — a narrow range for Greenhills. It is a balanced pattern Greenhills shares with places like Forest Park, OH, New Burlington, OH and Pleasant Hills, OH.

The cool-season window in Greenhills starts at mid-April, when nights stop freezing — think peas, lettuce, spinach, and radishes. In Greenhills, warm-season transplants — tomatoes, peppers, basil — wait two weeks past Greenhills's frost date. Around mid-November, freezing nights resume in Greenhills and tender crops must come in. In Greenhills, low spots run 4-7°F colder than nearby slopes, nudging Greenhills's frost dates a week.

Similar climates: Forest Park, OH, New Burlington, OH, Pleasant Hills, OH, Mount Healthy Heights, OH, Woodlawn, OH.

Frequently asked

When does it freeze in Greenhills?
In Greenhills, expect the last spring frost near mid-April; Greenhills's first autumn frost comes around mid-November.
What is the rainy season in Greenhills?
May is the wettest month in Greenhills, about 4.4 inches on average; the year totals roughly 41 inches.
What is the warmest month in Greenhills?
July is Greenhills's warmest month, averaging about 78°F.
What is the coldest month in Greenhills?
Greenhills bottoms out in January, with a mean near 30°F.
When can I start a vegetable garden in Greenhills?
Frost-hardy sowings begin at mid-April in Greenhills; warm-season starts follow two weeks on.
How many rainy days does Greenhills get?
Greenhills averages about 187 days with measurable rain or snow each year.
What hardiness zone is Greenhills?
Greenhills sits in the USDA zone set by January lows near 30°F; the USDA ZIP tool gives the band.
What is the 10-day forecast for Greenhills?
Greenhills'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 Greenhills?
See this week's day-by-day rain chances for Greenhills in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Greenhills?
Current conditions for Greenhills and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Greenhills forecast updated?
The Greenhills forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Greenhills?
Day length in Greenhills peaks around the June solstice — earliest sunrise and latest sunset — and is shortest near the December solstice.
How accurate is the weather forecast for Greenhills?
The next few days in Greenhills's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Greenhills, Ohio has a humid subtropical climate: January averages roughly 30°F, July about 78°F, 48°F between them.

In a typical year Greenhills records about 41 inches of precipitation on around 187 days.

Latitude 39.3°N gives Greenhills its 48°F swing, and with it the rhythm of Greenhills's growing season.

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ZIP codes in Greenhills

  • 45218

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.