Climbing annuals?

Well there are several you could use.. Clematis as Terrier says or what about some of the trailing sweetpeas for baskets..?? Morning Glory vines.??
Otherwise these are all I can think of at present
Common hops (Humulus lupulus)
A beautiful vine that is becoming more well-known to gardeners, the hops vine has a lot to offer the landscape. The hops vine makes a nice, lush screen that will hide or disguise eye-sores around the house or provide a privacy screen. The flowers of the hops vine have a pine-scented fragrance and are attractive to butterflies.


Canary creeper-Tropaeolum perigrinum.. Requires full sun though a surprising climber with deeply divided palm-shaped leaves and heavily fringed blooms that peep from among the foliage. It is not fully hardy ..


Blackeyed Susan- Thunbergia... It used to be regarded as a conservatory climber for growing in tubs, soil borders or from hanging baskets, but is becoming a popular subject for outdoor cultivation, both in baskets and in more protected corners of the garden. Doesn't like to be exposed to cold winds..