Here is a list of all the national days in April.

Apr 1: April Fools Day

Apr 2: National Peanut Butter and Jelly Day

            World Autism Awareness Day

Apr 3: National Find a Rainbow Day

Apr 4: National Burrito Day

            National Hug a News-person Day

            RAINN Day

Apr 5: National Deep Dish Pizza Day

Apr 6: National Siamese Cat Day

            National Student-Athlete Day

            New Beer’s Eve

Apr 8: National Empanada Day

Apr 9: National Winston Churchill Day

Apr 10: National Hug Your Dog Day

              National Siblings Day

Apr 11: National Pet Day

Apr 12: National Day of Silence

             National Grilled Cheese Sandwich Day

Apr 13: National Make Lunch Count Day

              National Scrabble Day

Apr 15: National Laundry Day

             Tax Day

Apr 16: Wear Pajamas to Work Day

Apr 17: National Cheeseball Day

Apr 19: National Garlic Day

             National High Five Day

Apr 20: Husband Appreciation Day

               National Look-Alike Day

Apr 21: National Bulldogs are Beautiful Day

Apr 22: National Jelly Bean Day

Apr 23: National Picnic Day

Apr 24: Administrative Professionals Day

              International Guide Dog Day

              National Pigs in a Blanket Day

Apr 25: National Hug a Plumber Day

              National Telephone Day

Apr 26: Arbor Day

              National Pretzel Day

Apr 27: National Prime Rib Day

Apr 28: National Superhero Day

Apr 29: National Shrimp Scampi Day

Apr 30: National Honesty Day

              National Raisin Day