• 1: Matronalia, the Festival of Women, held in honor of Juno Luciana.
• 6: Birthday of "official witch of Salem" Laurie Cabot in 1933
• 17: St. Patrick's Day
• 17: Celtic Tree Month of Ash ends
• 18: Celtic Tree Month of Alder begins
• 20: Full moon–Storm Moon at 9:43 am. Use this month's moon phase to celebrate balance, rebirth, and renewal.
• 20: Ostara, the spring equinox.
• 20: Mabon (Southern Hemisphere), the autumn equinox.
• 26: Birthday of author and folklorist Joseph Campbell
• 28: Death of author Scott Cunningham in 1993 

Health Awareness

• Multiple Sclerosis Education and Awareness Month
• National Bleeding Disorders Awareness Month
• National Colorectal Cancer Awareness Month
• National Endometriosis Awareness Month
• National Kidney Month
• National Nutrition Month
• National Traumatic Brain Injury Awareness Month
• Save Your Vision Month
• Trisomy Awareness Month
• World Kidney Day (March 14)
• World Sleep Day (March 15)
• National School Breakfast Week (March 4–8)
• National Women and Girls HIV/AIDS Awareness Day (March 10)
• Patient Safety Awareness Week (March 10–16)
• National Sleep Awareness Week (March 3–10)
• Brain Awareness Week (March 11–17)
• National Poison Prevention Week (March 17–23)
• National Native American HIV/AIDS Awareness Day (March 20)
• World Tuberculosis Day (March 24)
• American Diabetes Alert Day (March 26)
• Purple Day for epilepsy awareness (March 26)