Chantilly, VA weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Chantilly now
Loading the National Weather Service forecast…
Chantilly weather by the hour
Chantilly weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Chantilly.
This week in Chantilly
Sunrise, sunset and moon in Chantilly
What is the weather usually like in Chantilly?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 87°F average high
- Januarycoldest month · 25°F average low
- 43.2 inprecipitation per year · 1,098 mm
- 21.0 insnowfall per year · 53 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Chantilly: May–June and September–October, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station WASHINGTON DC DULLES AP, VA US (USW00093738), adjusted for the elevation of Chantilly.
Chantilly weather month by month
Sunrise and sunset in Chantilly through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:25 AM | 5:13 PM | 9 h 48 min |
| February | 6:59 AM | 5:48 PM | 10 h 49 min |
| March | 7:19 AM | 7:18 PM | 11 h 58 min |
| April | 6:31 AM | 7:48 PM | 13 h 16 min |
| May | 5:55 AM | 8:16 PM | 14 h 21 min |
| June | 5:42 AM | 8:38 PM | 14 h 55 min |
| July | 5:55 AM | 8:36 PM | 14 h 40 min |
| August | 6:22 AM | 8:06 PM | 13 h 43 min |
| September | 6:50 AM | 7:19 PM | 12 h 29 min |
| October | 7:18 AM | 6:32 PM | 11 h 14 min |
| November | 6:51 AM | 4:57 PM | 10 h 6 min |
| December | 7:19 AM | 4:50 PM | 9 h 30 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Chantilly?
Chantilly has a humid subtropical climate. The warmest month is July, with an average high of 87°F (31°C), and the coldest is January, with average lows of 25°F (-4°C).
It gets about 43.2 inches (1,098 mm) of precipitation a year. The wettest month is May and the driest is February. Snow is common: about 21 inches fall in an average year.
The best time to visit Chantilly is May–June and September–October. At 322 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Chantilly
Weather in towns near Chantilly
Questions about the weather in Chantilly
What is the hottest month in Chantilly?
July, with an average high of 87°F (31°C).
What is the coldest month in Chantilly?
January, with an average low of 25°F (-4°C).
How much does it rain in Chantilly?
About 43.2 inches (1,098 mm) a year; the wettest month is May.
Does it snow in Chantilly?
Yes, about 21 inches of snow fall in an average year.
When is the best time to visit Chantilly?
May–June and September–October, when temperatures are most pleasant and rainy days are fewer.
What climate does Chantilly have?
Humid subtropical (Köppen Cfa).
What is the weather like in Chantilly in November?
Highs average 56°F and lows 35°F, with about 3.1 inches of precipitation.
What time is sunrise in Chantilly?
Around 6:51 AM in mid-November, and sunset around 4:57 PM. Today’s exact times are shown above.
Where does this Chantilly weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Chantilly.
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