| | Declutter for a Cause Month | Cause | Activities, Environmental |
| | National Green Week | Cause | Awareness, Conservation, Environmental |
| | Kyoto Protocol Day | Federal | Environmental |
| | Gardening, Nature and Ecology Books Month | Special Interest | Books, Environmental, Hobby |
| | World Seagrass Day | Special Interest | Conservation, Environmental |
| | Sea Week | Special Interest | Appreciation, Conservation, Environmental |
| | National Fix a Leak Week | Special Interest | Awareness, Environmental |
| | Maple Syrup Saturday | Food & Beverage | Breakfast, Environmental, Sweet Food |
| | National Renewable Energy Day | Special Interest | Awareness, Environment, Environmental |
| | Earth Month | Cause | Awareness, Environmental, Wildlife |
| | Fossil Fools Day | Cause | Awareness, Environmental |
| | National Dandelion Day | Special Interest | Appreciation, Environmental |
| | National Hanging Out Day | Special Interest | Awareness, Conservation, Environmental |
| | International Mother Earth Day | Cause | Awareness, Conservation, Environmental |
| | National Scoop the Poop Week | Animal | Awareness, Dog, Environmental |
| | Hurricane Preparedness Week | Special Interest | Awareness, Environmental, Safety |
| | Sun Day | Special Interest | Education, Environment, Environmental |
| | Mother Ocean Day | Cause | Appreciation, Awareness, Environmental |
| | Flower Day | Special Interest | Appreciation, Environmental |
| | Water Saving Week | Cause | Awareness, Conservation, Environmental |
| | Great Outdoors Month | Special Interest | Activities, Environmental, Fun |
| | National Pollinators Month | Cause | Conservation, Environment, Environmental |
| | National Rose Month | Special Interest | Appreciation, Environment, Environmental |
| | End Mountain Top Removal Week | Cause | Awareness, Environmental |
| | National Week of the Ocean | Special Interest | Awareness, Environmental, Wildlife |
| | European Bicycle Day | Special Interest | Activities, Environmental, Hobby |
| | International Day for the Fight against Illegal, Unreported and Unregulated Fishing | Cause | Awareness, Conservation, Environmental |
| | World Green Roof Day | Special Interest | Awareness, Conservation, Environmental |
| | Global Wind Day | Special Interest | Awareness, Environmental |
| | International Surfing Day | Special Interest | Awareness, Environmental, Sports |
| | Arborist Appreciation Day | Appreciation | Careers, Environmental |
| | Lightning Safety Awareness Week | Health | Awareness, Educational, Environmental |
| | National Pollinator Week | Animal | Appreciation, Conservation, Environmental |
| | Clutter Awareness Week | Special Interest | Awareness, Environmental |
| | World Water Week | Cause | Awareness, Conservation, Environmental |
| | Seed Gathering Season | Special Interest | Conservation, Environmental |
| | September Equinox | Special Interest | Educational, Environmental |
| | World Rivers Day | Cause | Awareness, Conservation, Environmental |
| | World Habitat Awareness Month | Cause | Awareness, Environmental |
| | National Recycling Week | Special Interest | Conservation, Educational, Environmental |
| | Social Enterprise Day | Special Interest | Careers, Environmental |
| | Christmas Bird Count Week | Animal | Environmental, Wildlife |