Information about weather conditions to expect for each season can be found on the Weather page.

Spring

Wide temperature swings are the norm for spring in the Appalachian mountains. ATC recommends hiking in Georgia or in the northern Virginia, Maryland, and southern Pennsylvania area in March and April to find the most comfortable temperatures. Spring wildflowers can be spectacular, making their first  appearances in April or May. The Spring Break Hiking Guide offers more information on planning a hike in March or April and alternative hike options.

Summer

Summer is a popular time to get out and enjoy a hike on the A.T. Hikes at higher elevations, particularly in New England, offer cooler temperatures than surrounding lowlands. Hikers in the summer should be aware of weather-related dangers and Lyme disease and other tick-borne illnesses. Backpackers especially should be prepared to carry extra water as high temperatures require greater fluid intake and some springs may go dry in periods of drought. Read about these and other health and safety tips for the Trail. 

Fall

Appreciating the change of fall colors is a popular pastime of outdoor enthusiasts. ATC has compiled a Fall Foliage Hiking Guide to help you plan your next fall hike in conjunction with the colorful displays from Maine to Georgia. Hunting is allowed along many portions of the A.T.; be sure to visit our hunting page to learn more before you go.

Winter

Winter hiking offers splendid views, greater solitude, and freedom from insects, but requires extra planning. Conditions may be vastly different from the valleys below the Trail. Any part of the A.T. may be snow-covered in winter, although bare ground may sometimes be found at low elevations on the southern half of the Trail. In New England, where snow is deeper, snowshoes are popular. Ice, snow, or fallen trees may slow progress considerably in winter. Remember that nightfall comes early. Do not venture out without knowing how to prevent, recognize, and treat hypothermia. A hiker with cold-weather experience should be along on any winter outing.