Big Rock, Virginia Weather
Fireflies pulse through the magnolias. Day 77 of spring. Read this microseason across nine climate regions →
Big Rock weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Clear——86°56°—
- FridayJun 5Overcast——90°61°+4°
- SaturdayJun 6Overcast——89°64°-1°
- SundayJun 7Heavy Drizzle36%—86°64°-3°
- MondayJun 8Light Showers30%—81°68°-5°
- TuesdayJun 9Overcast20%—75°65°-6°
- WednesdayJun 10Overcast21%—86°61°+11°
Ozone at AQI 48 — peak already passed at 1 PM under clear skies. AQI up 19 in the last 6 hours — air quality is degrading. Levels should ease through evening.
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 48 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 48
- UV peak
- 5.0 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 48
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
- 3:49 AM
- Moonset
- 1:37 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Big Rock at a glance
- Today vs. normal: 7°F above the seasonal normal for this latitude
- Last frost: March 31 (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 — Big Rock
SPC has placed Big Rock in the General Thunderstorms category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
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.
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
Big Rock's warmest month is July (~73°F mean) and its coldest is January (~34°F). Rainfall peaks in July (5.7 inches) and bottoms out in November (2.6 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 34° | 3.3″ | 8 |
| February | 37° | 3.3″ | 7 |
| March | 44° | 4.0″ | 8 |
| April | 54° | 4.3″ | 9 |
| May | 62° | 4.8″ | 10 |
| June | 69° | 4.8″ | 9 |
| July | 73° | 5.7″ | 9 |
| August | 72° | 4.2″ | 8 |
| September | 67° | 3.2″ | 6 |
| October | 56° | 3.0″ | 6 |
| November | 44° | 2.6″ | 6 |
| December | 37° | 3.7″ | 8 |
Regional context
Big Rock's baseline climate, derived from NOAA NCEI 1991-2020 normals at the nearest reporting station, swings from a January mean of 34°F to a July mean of 73°F — a 39°F seasonal arc typical of the mid-latitude bands. Annual precipitation runs about 46.9 inches spread across roughly 94 days with measurable rain or snow each year.
Rainfall stays relatively even across the calendar: July tops out at 5.7 inches across 8.9 days with measurable rain, and November settles around 2.6 inches across 6.1 rainy days — a comparatively narrow seasonal range. The balanced distribution lines Big Rock up with places like Breaks, VA, Grundy, VA and Vansant, VA, all of which run on overlapping storm tracks rather than a single seasonal moisture source.
The frost-sensitive growing window opens around mid-April, when overnight lows reliably clear freezing for cool-season crops like peas, lettuce, spinach, and radishes. Warm-soil crops — tomatoes, peppers, eggplant — wait until soil temperatures reach the mid-50s°F, usually two weeks past the last-frost date. The window closes around mid-November, when overnight lows resume dipping below freezing and frost-tender plants need protection or harvest. Those dates are 30-year averages; the actual frost-free window in a given year can vary by 10-14 days at either end. Neighborhood-scale variation in elevation and cold-air pooling means the practical last-frost date inside Big Rock can lag the regional mean by 5-10 days in low spots, and a bench position with good cold-air drainage can run a week ahead.
Similar climates: Breaks, VA, Grundy, VA, Vansant, VA, Haysi, VA, Clinchco, VA.
Frequently asked
- When does it freeze in Big Rock?
- Big Rock's last spring frost typically falls around mid-April, and the first fall frost arrives around mid-November.
- What is the rainy season in Big Rock?
- July is the wettest month with about 5.7 inches of rain on average; the city receives roughly 47 inches annually.
- What is the warmest month in Big Rock?
- July is typically warmest, averaging about 73°F.
- What is the coldest month in Big Rock?
- January is typically coldest, averaging about 34°F.
- When can I start a vegetable garden in Big Rock?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-April); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Big Rock get?
- Big Rock averages about 94 rainy days per year.
- What hardiness zone is Big Rock?
- Big Rock's USDA hardiness zone is determined by its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
Big Rock, Virginia sits in a humid subtropical climate zone. January means hover near 34°F while July averages 73°F — a 39°F seasonal swing.
Across the year, Big Rock receives about 47 inches of precipitation spread over roughly 94 rainy days.
The rhythm of the year is set by latitude (37.4°N), proximity to large water bodies, and elevation — all of which shape what grows here, when frost is likely, and what the weather story looks like day to day.