Ashburn and Dulles Town Center have remarkably similar climates.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Ashburn | Metric | Dulles Town Center |
|---|---|---|
| 205 days | Sunny daysclear or partly cloudy skies | 205 days |
| 42 in | Precipitationper year | 42 in |
| 119 days | Wet daysrain or snow per year | 119 days |
| 22 in | Snowfallper year | 22 in |
| 31 days | Hot daysabove 90 °F | 29 days |
| 110 days | Freezing nightsat or below 32 °F | 110 days |
| 69% | Humidityaverage relative | 69% |
| 55 °F | Average temperatureyear round | 55 °F |
Monthly temperatures
Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.
Daily highs
Daily lows
View monthly temperatures as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ashburn high | 42 | 46 | 54 | 66 | 74 | 83 | 87 | 86 | 79 | 68 | 56 | 46 |
| Dulles Town Center high | 42 | 46 | 54 | 66 | 74 | 83 | 87 | 86 | 79 | 67 | 56 | 46 |
| Ashburn low | 25 | 26 | 33 | 43 | 53 | 62 | 67 | 65 | 58 | 45 | 35 | 29 |
| Dulles Town Center low | 25 | 26 | 33 | 43 | 53 | 62 | 67 | 65 | 58 | 45 | 35 | 29 |
Monthly precipitation
Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.
View monthly precipitation as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ashburn | 3.0 | 2.8 | 3.8 | 3.4 | 3.8 | 3.4 | 3.9 | 3.3 | 4.3 | 3.4 | 3.0 | 3.5 |
| Dulles Town Center | 3.0 | 2.8 | 3.8 | 3.4 | 3.8 | 3.4 | 3.9 | 3.3 | 4.3 | 3.4 | 3.0 | 3.5 |
Monthly sunny days
Days each month with clear or partly cloudy skies, so compare the same month between cities.
View monthly sunny days as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ashburn | 16 | 15 | 16 | 16 | 16 | 17 | 19 | 19 | 18 | 20 | 18 | 16 |
| Dulles Town Center | 16 | 15 | 16 | 16 | 16 | 17 | 19 | 19 | 18 | 20 | 18 | 16 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Ashburn vs another city
- Ashburn vs Moorefield, VA
- Ashburn vs Broadlands, VA
- Ashburn vs Belmont, VA
- Ashburn vs Countryside, VA
- Ashburn vs Loudoun Valley Estates, VA
- Ashburn vs New York, NY
- Ashburn vs Los Angeles, CA
- Ashburn vs Chicago, IL
- Ashburn vs Houston, TX
- Ashburn vs Phoenix, AZ
- Ashburn vs Philadelphia, PA
Dulles Town Center vs another city
- Dulles Town Center vs Sterling, VA
- Dulles Town Center vs Countryside, VA
- Dulles Town Center vs Cascades, VA
- Dulles Town Center vs Sugarland Run, VA
- Dulles Town Center vs Dranesville, VA
- Dulles Town Center vs New York, NY
- Dulles Town Center vs Los Angeles, CA
- Dulles Town Center vs Chicago, IL
- Dulles Town Center vs Houston, TX
- Dulles Town Center vs Phoenix, AZ
- Dulles Town Center vs Philadelphia, PA
About this data
Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.
Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).