Dry weather: only 18 inches of rain and melted snow a year in Danville, less than in 91% of U.S. towns
January mornings start at about 19°. Temperatures cover 66° across the year, low to high. Winter nights are cold: in January they are colder than in 64% of U.S. towns. The outdoor season, with highs of 70–75°, runs through May, June and September.
A year in Danville at a glance
Each month’s typical high and low, and what it brings.
What stands out about Danville’s climate
Compared with towns across the U.S., with Danville’s place in Washington beside it.
What a year in Danville feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 18 inches of rain a year
June is the wettest month and August the driest.
Rain + melted snow by month
Inches of water
Living with Danville’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
Zone 6a.
Months with highs of 62–84° and lows of 40° or more: May, June and September.
Parks & trails →Of the yearly building losses FEMA expects in Danville from natural hazards, river flooding is the largest share (58%); heat waves, cold waves, winter storms and ice storms together are 7%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Danville and similar climates
TownRatings has no climate map of the towns around Danville yet.
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Danville averaged 1.1° warmer than the 1900s. The biggest change is in January (+3.9°).
A smaller shift than in 68% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Danville compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Danville’s place among Washington’s.
Danville weather by month
Highs, lows and precipitation from NOAA’s grid at Danville’s center. 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 31° | 19° | 1.6" | 17° – 33° |
| February | 39° | 21° | 1.1" | 20° – 37° |
| March | 50° | 27° | 1.4" | 34° – 44° |
| April | 60° | 33° | 1.5" | 42° – 53° |
| May | 70° | 41° | 2.2" | 50° – 61° |
| June | 75° | 46° | 2.2" | 58° – 68° |
| July | 85° | 51° | 1.2" | 61° – 73° |
| August | 85° | 49° | 0.8" | 61° – 70° |
| September | 75° | 42° | 1.0" | 54° – 62° |
| October | 57° | 33° | 1.4" | 40° – 50° |
| November | 40° | 26° | 1.7" | 27° – 40° |
| December | 31° | 19° | 1.9" | 18° – 32° |
| Year | 58° | 34° | 18.1" |
How much a month can swing
A normal is an average. January swings the most: from 1991 to 2020 its average ranged from 17° to 33°. September is the most reliable, staying within 8°.
Where Danville’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Danville’s center.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Danville’s climate
What is the weather like in Danville?
A typical July afternoon reaches 85°, a January night drops to 19°. Colder January nights than 64% of U.S. towns; cooler July afternoons than 52% of U.S. towns.
How cold does it get in Danville in winter?
January nights average 19°. In the coldest January of the last 30 years the month averaged 17°.
How hot does it get in Danville?
July, with a typical high of 85°. 90° days are rare.
What growing zone is Danville in?
Zone 6a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −7°.
What is the best time of year to visit Danville?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Danville getting warmer?
Yes: 1991–2020 averaged 1.1° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 68% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Danville.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.