Bay Area community colleges are starting to restore their summer sessions this year.

Here's a sampling of the upward trend, along with colleges' registration dates and other information. For most schools, registration begins this month.

-- Chabot College in Hayward: Planning to offer about 175 classes, 47 more than last year. Registration dates are at www.chabotcollege.edu/admissions/AcademicCalendar/Summer13.cfm

-- Contra Costa Community College District (Contra Costa College, Diablo Valley College, Los Medanos College): 1,002 classes, up from 693 last summer. New offerings include short-term, six-week classes. Summer session website: www.maximizeyourfuture.org/

-- Foothill-De Anza Community College District in Los Altos Hills: No figures available, but the district reports the colleges are "rebuilding" their summer offerings.

De Anza: www.deanza.edu/calendar/

Foothill: www.foothill.fhda.edu/reg/summer13.php

-- Peralta Community College District (College of Alameda, Berkeley City College, Laney College, Merritt College): Planning 639 sections this summer, 70 more than last year. Registration dates are at http://web.peralta.edu/admissions/2013/03/summer-2013-academic-calendar/#more-1791

-- San Jose/Evergreen Community College District in San Jose: Plans to offer 321 classes this summer, 150 more than last year. Evergreen Valley College is at www.evc.edu/schedule/2013/fall/academic_calendar.htm

-- San Jose City College: www.sjcc.edu/current/academics/schedule-of-classes/index.aspx