The American Red Cross kicked off its "100 Days of Summer. 100 Days of Hope." campaign on May 24, reminding blood donors that they can give hope to patients by rolling up a sleeve.

"Every day this summer is a chance to give a lifesaving gift," said Ryan Corcoran, Community CEO of the South Carolina Blood Services Region. "Making a blood or platelet donation with the Red Cross is an easy way to extend hope and help ensure lifesaving blood products are available for patients here in our community and across the nation."

Vacations and summer activities often result in a decline in blood donations during the summer. In fact, during the months of June, July and August, about two fewer donors give blood at each Red Cross blood drive than what patients need. The trend is particularly noticeable around holidays like Memorial Day, which is why all presenting blood and platelet donors from May 24 through May 26 will receive a commemorative Red Cross cooling towel while supplies last.

"100 Days of Summer. 100 Days of Hope." runs through Sept. 1. All summer, the Red Cross will encourage at least two more donors to give blood at each Red Cross blood drive - above what is expected. Individuals can visit redcrossblood.org or call 1-800-RED CROSS (1-800-733-2767) to choose a day to donate and help sustain adequate supplies over the summer months.

Following are donation center hours and upcoming blood donation opportunities listed by city.

West Ashley Donation Center, 2000 Sam Rittenberg Blvd.

Blood donation hours

Sunday: closed

Monday: 6:00 a.m.-2:00 p.m. (Memorial Day holiday hours); 11:00 a.m.-7:00 p.m. (Regular hours)

Tuesday: 11:00 a.m.-7:00 p.m.

Wednesday: 11:00 a.m.-7:00 p.m.

Thursday: 9:00 a.m.-5:00 p.m.

Friday: 6:00 a.m.-2:00 p.m.

Saturday: 6:00 a.m.-2:00 p.m.

Platelet donation hours

Sunday: 6:00 a.m.-1:00 p.m.

Monday: 6:00 a.m.-1:00 p.m. (Memorial Day holiday hours); 11:00 a.m.-6:00 p.m. (Regular hours)

Tuesday: 11:00 a.m.-6:00 p.m.

Wednesday: closed

Thursday: closed

Friday: 6:00 a.m.-1:00 p.m.

Saturday: 6:00 a.m.-1:00 p.m.

Mt. Pleasant Donation Center, 920 Houston Northcutt Blvd.

Blood donation hours

Sunday: closed

Monday: closed

Tuesday: closed

Wednesday: 11:00 a.m.-7:00 p.m.

Thursday: 9:00 a.m.-5:00 p.m.

Friday: 6:00 a.m.-2:00 p.m.

Saturday: 6:00 a.m.-2:00 p.m.

Platelet donation hours

Sunday: 6:00 a.m.-1:00 p.m.

Monday: 6:00 a.m.-1:00 p.m. (Memorial Day holiday hours); 11:00 a.m.-6:00 p.m. (Regular hours)

Tuesday: 11:00 a.m.-6:00 p.m.

Wednesday: closed

Thursday: closed

Friday: 6:00 a.m.-1:00 p.m.

Saturday: 6:00 a.m.-1:00 p.m.

Bonneau

5/28/2014: 3:00 PM - 8:00 PM: Macedonia Christian Church, 2428 Hwy. 17 North

Charleston

5/28/2014: 10:00 AM - 3:00 PM: MUSC Horseshoe, 171 Ashley Ave.

5/31/2014: 9:00 AM - 2:00 PM: VFW 445, 1639 Camp Road

Johns Island

5/23/2014: 2:00 PM - 7:00 PM: Fit Life Colleton Medical Center, 302 Medical Park Dr.

5/30/2014: 10:00 AM - 3:00 PM: Sea Islands Chamber of Commerce, 2817 Maybank Hwy. Unit 1

Moncks Corner

5/29/2014: 12:00 PM - 5:00 PM: Berkeley Electric Co-Op, 551 Rembert Dennis Blvd.

Mount Pleasant

5/28/2014: 8:00 AM - 1:00 PM: Mount Pleasant Hospital, 3500 North Hwy.  17

5/28/2014: 10:00 AM - 3:00 PM: Motley Rice LLC, 29 Bridgeside Blvd.

North Charleston

5/22/2014: 8:00 AM - 8:00 PM: ABC News 4 Blood Drive at Northwoods Mall, 2150 Northwoods Blvd.

5/27/2014: 1:00 PM - 7:00 PM: Felix Davis Community Center in Park Circle, 4800 Park Place West

5/29/2014: 2:00 PM - 7:00 PM: Morningside Middle School, 1999 Singley Lane

Ravenel

5/28/2014: 1:00 PM - 6:00 PM: E.B Ellington Elementary School, 5540 Old Jacksonville Road

Saint Stephen

5/23/2014: 6:00 AM - 11:00 AM: Albany International, 300 Albany Dr.

Summerville

5/23/2014: 12:00 PM - 5:00 PM: The Bank of South Carolina, 100 N. Main St.

5/24/2014: 9:00 AM - 3:00 PM: ATP Gunshop and Range, 1340 College Park Road

How to donate blood

Simply call 1-800-RED CROSS (1-800-733-2767) or visit redcrossblood.org to make an appointment or for more information. All blood types are needed to ensure a reliable supply for patients. A blood donor card or Dr.r's license or two other forms of identification are required at check-in. Individuals who are 17 years of age (16 with parental consent in some states), weigh at least 110 pounds and are in generally good health may be eligible to donate blood. High school students and other donors 18 years of age and younger also have to meet certain height and weight requirements.