March:
20th - Vernal Equinox
22nd - World Chipmunk Day

April:
22nd - Earth Day!!
24th - Arbor Day

May: 
20th - World Bee Day

June:
6th - World Environment Day
8th - World Oceans Day
21st - Summer Solstice

July:
8th - National Blueberry Day

August:
2nd - International Day of Friendship
12th - Solar Eclipse & Perseid Meteor Shower Peak
28th - Partial Lunar Eclipse

September:
22nd - Autumnal Equinox

October: Bat Appreciation Month
15th - National Mushroom Day

November:

December:
5th - World Soil Day
13th - Geminids Meteor Shower Peak
21st - Winter Solstice