The Cliffs Valley, South Carolina Weather

Thunder quiets the land. Day 93 of summer. Read this microseason across nine climate regions →

The Cliffs Valley weather forecast — hour by hour, 7-day outlook, NOAA radar

The Cliffs Valley, SC
Monday, September 21 at 12:50 AM
71
°
Clear
Feels like
73°
Humidity
71%
Wind
4 mph
Sunrise
7:17 AM
Sunset
7:27 PM

Conditions updated 12:50 AM EDT · Open-Meteo

The Cliffs Valley, SC
Hour by hour · 24h
24-Hour ForecastThe Cliffs Valley, SC: 24-hour forecast. Temperatures range from 70 to 88 degrees Fahrenheit with a 23% chance of precipitation at 5 PM.
L 70°H 88°
The Cliffs Valley, SC
7-day forecast
  1. Today
    Sep 21
    Clear
    23%
    88°70°
  2. Tuesday
    Sep 22
    Heavy Drizzle
    80%
    0.08″
    78°67°-10°
  3. Wednesday
    Sep 23
    Light Drizzle
    65%
    0.01″
    67°60°-11°
  4. Thursday
    Sep 24
    Light Drizzle
    47%
    0.05″
    61°58°-6°
  5. Friday
    Sep 25
    Overcast
    11%
    77°51°+16°
  6. Saturday
    Sep 26
    Partly Cloudy
    79°53°+2°
  7. Sunday
    Sep 27
    Overcast
    79°52°
The Cliffs Valley, SC
Anemometer · 24h winds · from true
NESW
From · True
NNW
331° · backing 16°
Direction
NNW
331°
Sustained
4
mph
Gust
4
mph
Peak 24h
9
avg 4 mph
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 4 mph · pk 9 mph @ 6:00p
010MPHB1B2B3B4-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 82SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
The Cliffs Valley, SC
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1014.0
+0.7 mb in 3h · rising · 29.94 inHg
Now
1014.0
mb
3h
+0.7
mb
12h
-1.3
mb
24h
-1.8
mb
Regime · FAIR
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10131017
9951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY-21h-18h-15h-12h-9h-6h-3h-24hNOW1016.91013.41015.0
Fair, steady air — a quiet anticyclone holds the sky.
Air quality now AQI 56 · Moderate
The Cliffs Valley, SC
Air quality
56
AQI
Moderate
0 in 6h

AQI 56 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 15.8 µg/m³ (AQI 63) with a 0.96 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in stagnant air, not road dust.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERModerate
15.8μg/m³
PM 10Good
16μg/m³
NO₂Good
16μg/m³
OzoneGood
31μg/m³
UV IndexLow
0.0

What's driving it

PM × Wind × Precip

PM2.5 at 15.8 µg/m³ (AQI 63) with a 0.96 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in stagnant air, not road dust.

PM2.5/PM10
0.96
Wind
calm
Recent rain
0h in last 6h
Pattern
stagnant smoke
The Cliffs Valley, SC
Sky cover · visibility · 24h
Cloud cover
5%
CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
13.7mi
UNLIMITED
21 mi0 mi−24h−18h−12h−6hnow
The Cliffs Valley, SC
Almanac · Monday, September 21
September dries up ditches or breaks down bridges.
Civil dawn
6:52 AM
Sunrise
7:17 AM
Daylight
12h 10m
Sunset
7:27 PM
Civil dusk
7:57 PM
Planting note
September — harvest tomatoes, peppers, beans, summer squash, winter squash
The Cliffs Valley, SC
The moon
Waxing Gibbous
72% illuminated
Moonrise
4:49 PM
Moonset
2:05 AM
In sign
♑︎ Capricorn
The Cliffs Valley, SC
Microseason
Sep 21–25

Thunder quiets the land

weather
Jan 172% of the yearDec 31

Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →

The Cliffs Valley at a glance

  • Today vs. normal: Today averages 79°F (high 88°F, low 70°F), 16°F above the 63°F normal for Sep 21
  • Last frost: March 27 (1991–2020 median, NOAA station 19 km away)
  • Microseason: Sep 21–25
  • Planting calendar: September — harvest tomatoes, peppers, beans, summer squash, winter squash

15-Day Forecast — The Cliffs Valley

  1. Mon88°70°23%
  2. Tue78°67°80%
  3. Wed67°60°65%
  4. Thu61°58°47%
  5. Fri77°51°11%
  6. Sat79°53°3%
  7. Sun79°52°5%
  8. Mon76°53°5%
  9. Tue76°57°11%
  10. Wed78°59°25%
  11. Thu84°66°22%
  12. Fri85°62°11%
  13. Sat67°59°19%
  14. Sun71°67°29%
  15. Mon75°55°26%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Late season

As of September 21, the first frost (around November 12) is about 7 weeks away. Frost-tender plants keep producing until then. This city's planting calendar for September: harvest tomatoes, peppers, beans, summer squash, and winter squash.

SPC Convective Outlook

Storm Prediction Center — The Cliffs Valley

SPC has placed The Cliffs Valley in the Marginal Risk category for severe thunderstorms tomorrow.

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWMRGLMarginal Risk
  • DAY 3TSTMGeneral Thunderstorms

Isolated severe storms possible. Limited threat for hail or damaging wind.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook.

Sun & seasons in The Cliffs Valley

The Cliffs Valley sits in Greenville County, where the year’s longest day runs 14h 32m of daylight and its shortest just 9h 47m — a swing of +4h 44m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.

Charleston, the state’s largest city, lies about 215 miles to the SE. The nearest town The Cliffs Valley tracks is Greenville, roughly 22 miles to the SSE.

Air quality in The Cliffs Valley

Air quality in The Cliffs Valley’s county has held roughly steady since 2020; its cleanest year on record was 2020 (median AQI 44).

Planting calendar

MonthPlantHarvest
Marchlettuce, peas, spinach, radishesradishes
Aprillettuce, peas, spinach, radisheslettuce, spinach, radishes
Maytomatoes, peppers, beans, squashlettuce, peas, spinach, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, spinach, garlic
Julytomatoes, peppers, beans, squashtomatoes, peppers, beans, summer squash, garlic
Augusttomatoes, peppers, beans, squash, fall brassicas, carrotstomatoes, peppers, beans, summer squash, winter squash
Septembertomatoes, peppers, beans, summer squash, winter squash
Octobergarlic (overwinter)tomatoes, peppers, beans, summer squash, winter squash
Novembertomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots
Decemberfall brassicas, carrots

A year in weather

The Cliffs Valley's warmest month is July (~71°F mean) and its coldest is January (~36°F). Rainfall peaks in December (7.1 inches) and bottoms out in February (4.8 inches).

MonthMean tempPrecipRainy days
January36°6.09
February39°4.810
March46°5.211
April55°5.911
May62°6.111
June68°6.914
July71°7.017
August69°7.015
September64°6.610
October55°5.68
November47°5.910
December40°7.110

Regional context

Similar climates Tigerville, SC, Slater-Marietta, SC, Caesars Head, SC

By the nearest station's NOAA NCEI 1991-2020 normals, The Cliffs Valley sees 36°F Januarys and 71°F Julys, a 34°F range, plus around 74.2 inches of precipitation across 136 days.

Rainfall in The Cliffs Valley splits evenly between the seasons: December tops out at 7.1 inches over 10.0 rainy days, and February logs 4.8 inches across 9.8 — neither half of The Cliffs Valley's year dominates. That even rhythm groups The Cliffs Valley with places like Tigerville, SC, Slater-Marietta, SC and Caesars Head, SC.

The cool-season window in The Cliffs Valley starts at March 27, when nights stop freezing — think peas, lettuce, spinach, and radishes. Warm-soil crops in The Cliffs Valley wait about two weeks past The Cliffs Valley's last frost, once the soil warms. It shuts near November 12, when freezes return to The Cliffs Valley and tender plants need cover. In about half of years, The Cliffs Valley's last freeze comes after March 27.

Similar climates: Tigerville, SC, Slater-Marietta, SC, Caesars Head, SC, Travelers Rest, SC, Landrum, SC.

Frequently asked

When does it freeze in The Cliffs Valley?
Frost typically leaves The Cliffs Valley by March 27 and returns to The Cliffs Valley near November 12.
What is the rainy season in The Cliffs Valley?
December is the wettest month in The Cliffs Valley, about 7.1 inches on average; the year totals roughly 74 inches.
What is the warmest month in The Cliffs Valley?
The Cliffs Valley peaks in July, when the mean runs near 71°F.
What is the coldest month in The Cliffs Valley?
January is The Cliffs Valley's coldest month, averaging about 36°F.
When can I start a vegetable garden in The Cliffs Valley?
Hardy spring crops go in near March 27 in The Cliffs Valley; tender peppers and squash wait 10–14 days.
How many rainy days does The Cliffs Valley get?
Expect roughly 136 wet days a year in The Cliffs Valley.
What hardiness zone is The Cliffs Valley?
Since January in The Cliffs Valley averages 36°F, The Cliffs Valley's USDA zone follows that floor — confirm it by ZIP.
What is the 10-day forecast for The Cliffs Valley?
The Cliffs Valley'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 The Cliffs Valley?
See this week's day-by-day rain chances for The Cliffs Valley in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in The Cliffs Valley?
Current conditions for The Cliffs Valley and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the The Cliffs Valley forecast updated?
The The Cliffs Valley forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in The Cliffs Valley?
Today's sunrise and sunset times for The Cliffs Valley 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 The Cliffs Valley?
The next few days in The Cliffs Valley's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

The Cliffs Valley sits at 35.1°N; its climate zone is humid subtropical (Köppen approximation).

ZIP codes in The Cliffs Valley

  • 29690

Climate normals: NOAA NCEI 1991–2020 normals from the nearest station. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.