
September Weather Predictions: Preparing for the Shift to Autumn
As the calendar turns, many of us are eagerly awaiting the crisp air and golden leaves of autumn. But before you pack away your summer gear and dive into your sweater collection, the Old Farmer’s Almanac provides a detailed roadmap of what to expect this September. From lingering humidity to strategic planting dates, here is everything you need to know to navigate the month.
The September Weather Rollercoaster: What to Expect
September is notoriously transitional, and this year is no different. The Almanac suggests a gradual exit for the summer heat, though it won’t happen overnight. Here is the weekly breakdown:
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- Week 1: Prepare for a humid start. The first week is predicted to be “very hot and humid,” keeping that late-summer feel alive.
- Week 2: A shift arrives. Expect initial showers and thunderstorms, which will pave the way for considerably cooler and less humid conditions.
- Week 3: A mix of stability and change. It will start dry and seasonable, followed by a few showers and warmer daytime temperatures, though nights will remain comfortable.
- The Grand Finale: The final two weeks of the month will lean further into autumn, characterized by cooler temperatures and lower humidity, punctuated by several passing storms.
Lunar Guidance: The Moon’s Influence on September
For those who follow the lunar cycle for gardening or personal wellness, the September sky has plenty to offer. According to the Old Farmer’s Almanac, keep an eye on these key dates:
- September 4: Last Quarter Moon
- September 10: New Moon
- September 18: First Quarter Moon
- September 26: Full Moon
The Gardener’s Calendar: Optimal Days for Your Field
Timing is everything when it comes to a successful harvest. Whether you are a professional farmer or a backyard enthusiast, the Almanac’s planting and weeding diagrams are invaluable for maximizing crop yield.
Root Crops (Onions, Carrots, Potatoes)
The best days to focus on your root vegetables are Sept. 1-2, 12-13, 19-21, and 29-30.
Above-Ground Crops (Beans, Corn, Wheat)
If you are tending to your corn or wheat, mark your calendar for Sept. 6-7, 14-16, and 24-25.
Maintenance and Harvest
- Weeding: The most effective window for clearing your fields is Sept. 3-5 and 8-11.
- Harvesting: Prepare your baskets for the prime harvest dates: Sept. 17-18, 22-23, and 26-28.
A Legacy of Precision
The Old Farmer’s Almanac isn’t just a weather guide; it’s a piece of American history. First published in 1797, it stands as the second oldest almanac in the United States. For over 230 years, it has remained in continuous publication, uniquely managed by the direct descendants of its founders. This blend of historical data and generational knowledge makes its predictions a trusted staple for rural and urban dwellers alike.
As we move toward the cooler months, staying attuned to these natural rhythms helps us work with nature rather than against it. Get ready for the rain, embrace the cooling breeze, and happy harvesting!




