Danville, Indiana Weather
Fireflies pulse through the magnolias. Day 78 of spring. Read this microseason across nine climate regions →
Danville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 5Overcast——85°60°—
- SaturdayJun 6Showers45%0.64″83°69°-2°
- SundayJun 7Light Showers51%0.13″75°66°-8°
- MondayJun 8Light Showers51%0.14″76°66°+1°
- TuesdayJun 9Showers41%—82°66°+6°
- WednesdayJun 10Light Drizzle44%—83°71°+1°
- ThursdayJun 11Thunderstorm20%—90°72°+7°
AQI 45 (Good), driven by PM2.5. AQI down 34 over the last 6 hours — air quality is improving sharply. PM2.5 at 6.7 µg/m³ (AQI 37) with a 0.93 fine-to-coarse ratio and 4 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.
What's driving it
Ozone × UV × Sky
Ozone at AQI 37 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 12 by mid-afternoon.
- Present
- AQI 37
- UV peak
- 3.3 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 12
PM × Wind × Precip
PM2.5 at 6.7 µg/m³ (AQI 37) with a 0.93 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.93
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 4:46 AM
- Moonset
- 2:53 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Danville at a glance
- Today vs. normal: 13°F below the seasonal normal for this latitude
- Last frost: April 15 (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 5, 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 — Danville
SPC has placed Danville 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. 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
Danville's warmest month is July (~76°F mean) and its coldest is January (~29°F). Rainfall peaks in June (5.1 inches) and bottoms out in February (2.1 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 29° | 2.6″ | 5 |
| February | 33° | 2.1″ | 6 |
| March | 43° | 3.3″ | 6 |
| April | 54° | 4.1″ | 8 |
| May | 64° | 4.3″ | 9 |
| June | 73° | 5.1″ | 8 |
| July | 76° | 4.3″ | 7 |
| August | 74° | 3.2″ | 5 |
| September | 68° | 2.6″ | 5 |
| October | 56° | 3.3″ | 6 |
| November | 43° | 3.3″ | 6 |
| December | 34° | 2.7″ | 7 |
Regional context
Danville's baseline climate, derived from NOAA NCEI 1991-2020 normals at the nearest reporting station, swings from a January mean of 29°F to a July mean of 76°F — a 47°F seasonal arc typical of the mid-latitude bands. Annual precipitation runs about 40.7 inches spread across roughly 76 days with measurable rain or snow each year.
Precipitation runs summer-dominant here: June averages 5.1 inches across 8.0 days with measurable rain, driven mostly by warm-season storms and thunderstorm activity, while February drops to just 2.1 inches across 5.5 rainy days under drier cool-season air. That summer-storm-driven distribution puts Danville in a cohort with places like Cartersburg, IN, Clayton, IN and Belleville, IN, all of which depend on warm-season convective activity for the bulk of their annual moisture.
The frost-sensitive growing window opens around mid-April, when overnight lows reliably clear freezing for cool-season crops like kale, peas, spinach, and parsnips. 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. These dates represent 30-year central tendencies; actual year-to-year variation can shift either bookend by 7-14 days, and local microclimate features within Danville — cold-air drainage on calm clear nights, slope aspect, distance from any nearby lake or river — can push the practical frost window earlier or later than the regional average.
Similar climates: Cartersburg, IN, Clayton, IN, Belleville, IN, Avon, IN, Amo, IN.
Frequently asked
- When does it freeze in Danville?
- Danville's last spring frost typically falls around mid-April, and the first fall frost arrives around mid-November.
- What is the rainy season in Danville?
- June is the wettest month with about 5.1 inches of rain on average; the city receives roughly 41 inches annually.
- What is the warmest month in Danville?
- July is typically warmest, averaging about 76°F.
- What is the coldest month in Danville?
- January is typically coldest, averaging about 29°F.
- When can I start a vegetable garden in Danville?
- 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 Danville get?
- Danville averages about 76 rainy days per year.
- What hardiness zone is Danville?
- Danville'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
Danville, Indiana sits in a humid subtropical climate zone. January means hover near 29°F while July averages 76°F — a 47°F seasonal swing.
Across the year, Danville receives about 41 inches of precipitation spread over roughly 76 rainy days.
The rhythm of the year is set by latitude (39.8°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.