Danville in Fall
In fall (September, October and November), Danville sees average daytime highs around 72°F and overnight lows near 51°F, with 2.5 in of rain over about 9 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 81°F in early September to 60°F by late November. The sky is clear or mostly clear about 67% of the time across fall, and the air most often feels dry.
Fall is Danville's 2nd-best season to visit on our travel score. For the whole year in context, see Danville's year-round climate.
- Avg daytime high
- 72°F
- 2nd-warmest season
- Avg overnight low
- 51°F
- Rainfall
- 2.5 in
- 9 wet days
- Avg wind
- 4 mph
- Travel score
- 8.0
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Danville in Fall
Over the season highs ease from about 81°F in early September to 60°F by late November.
A typical fall day in Danville reaches about 72°F and drops to 51°F overnight. The warmest of the three months is September, the coolest November.
Danville weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 57° / 42° | 3.5 | 9 | 9.7 | 4.2 |
| Feb | 60° / 43° | 3.7 | 8.9 | 10.5 | 4.9 |
| Mar | 63° / 45° | 2.8 | 8.4 | 11.7 | 6.0 |
| Apr | 67° / 47° | 1.3 | 4.8 | 12.9 | 7.1 |
| May | 72° / 51° | 0.7 | 3 | 14 | 8.2 |
| Jun | 77° / 54° | 0.1 | 0.9 | 14.6 | 9.1 |
| Jul | 80° / 57° | 0.0 | 0.2 | 14.4 | 9.0 |
| Aug | 80° / 57° | 0.1 | 0.2 | 13.5 | 9.0 |
| Sep | 79° / 55° | 0.1 | 0.4 | 12.3 | 9.0 |
| Oct | 74° / 52° | 0.8 | 2.9 | 11 | 8.6 |
| Nov | 64° / 46° | 1.6 | 5.5 | 10 | 6.4 |
| Dec | 57° / 42° | 3.2 | 8.7 | 9.4 | 4.2 |
Cloud cover in Fall
The sky is clear or mostly clear about 67% of the time across fall.
Chance of precipitation in Fall
Danville gets around 2.5 in of rain over 9 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 4 mph across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 54 min in early September to 9 h 36 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.4 kWh/m².
Is fall a good time to visit Danville?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is one of the better times to visit Danville for general sightseeing.
What to pack for Danville in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Danville sees daytime highs around 72°F and nights near 51°F. Worth packing: light clothes, a warm layer and sun protection. About 9 days see rain.
Sea temperature near Danville in Fall
The nearest coast averages about 57°F across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 34 mi away) is warmest in September at about 58°F and coldest in April near 53°F.
The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 53 | 53 | 54 | 53 | 53 | 54 | 56 | 58 | 58 | 57 | 55 | 54 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 53 | Bracing |
| Feb | 53 | Bracing |
| Mar | 54 | Bracing |
| Apr | 53 | Bracing |
| May | 53 | Bracing |
| Jun | 54 | Bracing |
| Jul | 56 | Bracing |
| Aug | 58 | Bracing |
| Sep | 58 | Bracing |
| Oct | 57 | Bracing |
| Nov | 55 | Bracing |
| Dec | 54 | Bracing |
UV index in Danville in Fall
Clear-sky midday UV across fall averages around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Danville peaks around June 23 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 4 | 4 | 6 | 8 | 10 | 10 | 10 | 6 | 5 | 2 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Very high | Very high | Very high | High | High | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 4 | Moderate |
| Mar | 4 | Moderate |
| Apr | 6 | High |
| May | 8 | Very high |
| Jun | 10 | Very high |
| Jul | 10 | Very high |
| Aug | 10 | Very high |
| Sep | 6 | High |
| Oct | 5 | High |
| Nov | 2 | Moderate |
| Dec | 2 | Low |
Air quality in Danville in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Danville is worst in August — around 25 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (June, 10 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 15 | 18 | 16 | 12 | 10 | 10 | 11 | 25 | 17 | 20 | 18 | 13 |
| Level | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 15 | Moderate |
| Feb | 18 | Moderate |
| Mar | 16 | Moderate |
| Apr | 12 | Moderate |
| May | 10 | Good |
| Jun | 10 | Good |
| Jul | 11 | Good |
| Aug | 25 | Moderate |
| Sep | 17 | Moderate |
| Oct | 20 | Moderate |
| Nov | 18 | Moderate |
| Dec | 13 | Moderate |
Where is Danville?
Danville sits at 37.8°N, 122.0°W, 358 ft above sea level, in United States. The nearest listed city is San Ramon, 3.1 mi away.
Topography around Danville
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Danville.
Within 2 miles, the terrain around Danville has significant variations in elevation — a maximum elevation change of 1,453 ft around an average of 620 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,776 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,452 ft.
The land around Danville is covered by trees (62%) and grassland (20%) within 2 miles, trees (46%) and grassland (36%) within 10 miles, and grassland (28%), trees (25%) and water (20%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Danville (37.8216°, -122°, elevation 358 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.