Yep, tiny unfortunately and completely normal for autos outdoors.
Autos + outdoors = disappointment in my experience.
Next time, if planting autos outdoors, plant a lot earlier than you did, the summer solstice is around June 23, meaning the light cycle decreases after that date, leading to less vegging potential. Planting 4-6 weeks before the summer solstice gives your autos only days of increasing light cycles, leading to enhanced vegging potential and bigger plants/yields.
In reality, autos are best for indoors with an 18/6 light cycle and photoperiod plants are best for outdoors.
If space is an issue outdoors, planting photoperiod plants late in the season, 2-4 weeks before the summer solstice will give you 3-5 foot plants (some strains even more!) and a much greater yield than any auto, no matter when the auto was planted.
Late planted photoperiod plants also tend to flower a bit earlier and a bit faster than photoperiod plants planted a lot earlier (March/April), meaning the late plantings usually finish before the Fall season arrives and early rains start.
Hope this helps, Organoman.