Annandale is a vibrant community located in Fairfax County, Virginia, United States. Situated just a few miles west of Washington, D.C., Annandale enjoys a prime location with easy access to the nation’s capital. As of the 2020 census, the population of Annandale was approximately 43,828 residents. Covering an area of around 7.86 square miles, Annandale is known for its diverse population, excellent schools, and thriving local businesses.
One of the notable features of Annandale is its rich cultural diversity, with residents representing a wide range of ethnic backgrounds and cultures. The community is home to several parks, recreational facilities, and shopping centers, making it a desirable place to live for families and young professionals alike.
Despite its suburban setting, Annandale boasts several major landmarks and points of interest. The Annandale Historic District, listed on the National Register of Historic Places, offers a glimpse into the area’s past with its well-preserved historic buildings and architecture. Additionally, nearby attractions such as Lake Accotink Park and Hidden Oaks Nature Center provide opportunities for outdoor recreation and exploration.
Climate and Weather Overview
Annandale experiences a humid subtropical climate, characterized by hot, humid summers and mild winters. The area receives moderate precipitation throughout the year, with occasional snowfall during the winter months. Summers are typically warm and sunny, while winters can be cool and damp.
Average Monthly Climate Data
Below is a table detailing the average temperature, precipitation, and sunny days for each month in Annandale:
| Month | Average Temperature (°F) | Precipitation (inches) | Sunny Days |
| January | 37 | 3.27 | 14 |
| February | 39 | 2.75 | 13 |
| March | 47 | 3.65 | 15 |
| April | 57 | 3.46 | 16 |
| May | 67 | 4.21 | 16 |
| June | 76 | 3.82 | 15 |
| July | 81 | 4.33 | 15 |
| August | 79 | 4.09 | 14 |
| September | 72 | 3.94 | 13 |
| October | 61 | 3.26 | 14 |
| November | 51 | 3.47 | 13 |
| December | 41 | 3.15 | 13 |
Weather by Month
January
January brings cold temperatures and occasional snowfall to Annandale, making it an ideal time for winter sports enthusiasts to enjoy activities such as skiing and snowboarding. However, residents should be prepared for icy conditions on roads and sidewalks, which can make travel challenging. While snowfall is relatively rare, occasional winter storms can bring significant accumulations, so it’s essential to stay informed about weather alerts and advisories.
Recommended Activities: Skiing or snowboarding at nearby resorts, ice skating at local rinks, visiting indoor attractions such as museums and galleries.
February
February continues to bring cold temperatures and occasional snowfall to Annandale, with residents eagerly anticipating the arrival of spring. Outdoor activities may be limited due to the wintry conditions, but indoor attractions such as theaters and historical sites offer plenty of opportunities for entertainment. Residents should continue to monitor weather forecasts and be prepared for icy roads and sidewalks.
Recommended Activities: Visiting local theaters and historical sites, attending indoor events and performances, exploring nearby hiking trails.
March
March marks the transition to spring in Annandale, with temperatures gradually warming up as the days grow longer. While snowfall is still possible, residents begin to see signs of the changing seasons, with blooming flowers and budding trees. Outdoor enthusiasts can enjoy activities such as hiking, biking, and picnicking as the landscape comes alive with color.
Recommended Activities: Hiking in local parks and nature reserves, picnicking at scenic overlooks, attending spring festivals and events.
April
April brings milder temperatures and blooming flowers to Annandale, signaling the arrival of spring in full force. Residents and visitors alike can enjoy outdoor activities such as hiking, biking, and exploring the area’s scenic trails. The mild weather and blooming flowers create a beautiful backdrop for outdoor activities and nature photography.
Recommended Activities: Biking along the Washington & Old Dominion Trail, exploring local parks and gardens, attending outdoor concerts and events.
May
May brings warmer temperatures and longer days to Annandale, making it the perfect time for outdoor adventures. Residents and visitors can enjoy activities such as kayaking, fishing, and picnicking at nearby lakes and rivers. The mild weather and blooming flowers create ideal conditions for enjoying the outdoors and soaking up the sunshine.
Recommended Activities: Kayaking or canoeing on the Potomac River, fishing at Lake Accotink, picnicking in local parks.
June
June brings hot temperatures and increased humidity to Annandale, with residents seeking ways to stay cool during the summer months. Water-based activities such as swimming, boating, and tubing are popular, with families spending time together at the area’s lakes and rivers. However, residents should be prepared for occasional afternoon thunderstorms, which can bring brief but intense rainfall.
Recommended Activities: Swimming or boating at Lake Accotink, tubing on the Potomac River, visiting indoor attractions such as museums and galleries.
July
July is the hottest month in Annandale, with temperatures often reaching into the 80s and 90s Fahrenheit. Residents seek relief from the heat by spending time at local swimming pools or enjoying water-based activities such as swimming and tubing. However, residents should be prepared for occasional afternoon thunderstorms, which can bring brief but intense rainfall and lightning.
Recommended Activities: Swimming or tubing at local swimming pools, picnicking in shaded areas, attending outdoor concerts and events.
August
August brings continued heat and humidity to Annandale, with residents seeking ways to stay cool during the peak of summer. Water-based activities such as swimming, fishing, and tubing remain popular, with families enjoying time together at the area’s lakes and rivers. However, residents should be prepared for occasional afternoon thunderstorms, which can bring heavy rainfall and gusty winds.
Recommended Activities: Swimming or fishing at Lake Accotink, tubing on the Potomac River, visiting indoor attractions such as museums and galleries.
September
September marks the transition to fall in Annandale, with temperatures starting to cool down as the summer months come to an end. Outdoor enthusiasts can enjoy activities such as hiking, biking, and birdwatching as the landscape begins to change color. However, residents should be prepared for occasional thunderstorms or hurricanes, which can impact the region.
Recommended Activities: Hiking in local parks and nature reserves, birdwatching along the Potomac River, attending fall festivals and events.
October
October brings cooler temperatures and vibrant foliage to Annandale, making it the perfect time for outdoor adventures. Residents and visitors can enjoy activities such as leaf peeping, hiking, and attending fall festivals in the area. The mild weather and beautiful scenery create ideal conditions for enjoying the outdoors and soaking up the fall atmosphere.
Recommended Activities: Leaf peeping along scenic drives, hiking in local parks and nature reserves, attending fall festivals and events.
November
November brings cooler temperatures and occasional rainfall to Annandale, signaling the arrival of winter in the region. While outdoor activities may be limited due to the cooler temperatures, residents can still enjoy activities such as hiking, birdwatching, and visiting local attractions. However, residents should be prepared for occasional cold fronts and windy days.
Recommended Activities: Hiking in local parks and nature reserves, birdwatching along the Potomac River, visiting indoor attractions such as museums and galleries.
December
December brings cooler temperatures and festive cheer to Annandale, with residents embracing the holiday season. Outdoor activities such as ice skating, sledding, and attending holiday events are popular, especially among families with young children. However, residents should be prepared for occasional snowstorms, which can bring heavy snowfall and icy conditions.
Recommended Activities: Ice skating at local rinks, sledding at nearby hills, attending holiday events and festivals.