September in Jackson, WY: peak season for golf — great conditions and a wide playing window. Best tee times: mid-morning through early afternoon.
| Average September Weather | |
|---|---|
| Avg daily high | 70°F |
| Avg daily low | 41°F |
| Rainy days | 8 / mo |
| Avg peak wind | 6.6 mph |
September's numbers translate into some of the best scoring conditions Jackson sees all year. The average high of 70°F sits near the middle of the ideal 60–80°F window, so you're not fighting heat fatigue on the back nine. Wind peaks at just 6.6 mph — calm enough that approach shots behave as calculated. And with only 8 precipitation days, the fewest of any month alongside July, you're looking at roughly one playable stretch for every rainy interruption. That 29°F daily swing from 70°F down to 41°F is the one number that actually costs strokes: an early tee time means cold muscles, stiff grips, and shorter carry distances until midday warmth arrives.
The combination of dry fairways (late-summer drainage has had months to firm up on just 8 rain days), manageable wind, and comfortable afternoon temperatures stacks the scorecard conditions in your favor by midday. Just don't let the mild afternoon lull you into forgetting that 41°F morning.
Book a late-morning tee time — around 9 or 10 AM — to let the overnight low of 41°F clear out before you start your round; you'll pick up meaningful carry distance compared to a 6 AM slot. September weekend tee sheets fill early as leaf-peeping traffic overlaps with golfers, so reserve at least a week out. See how conditions rate hour by hour on our playability scale.
Compared to August, September drops 7°F in average high and sheds 2 rainy days, making it actually drier and only marginally cooler — a fair trade. October tells a sharper story: a 15°F drop in average high to just 55°F, 3 more rainy days, and the realistic prospect of frost on the greens before your round is done.
Climate normals show the long-term picture, but day-to-day weather varies. Check today's live golf weather score for Jackson, WY for the current playability rating, hourly wind, temperature, and the recommended tee time window.
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September is Jackson's driest month, tied with July at just 8 precipitation days, and afternoon highs average 70°F — right in the ideal playing range. Wind peaks at only 6.6 mph, so conditions rarely interfere with ball flight. The main caveat is the 41°F average low, which makes early morning rounds noticeably cold.
The average overnight low in September is 41°F, meaning a 7 AM tee time puts you on the course in temperatures that will shorten carry distances and stiffen your hands within a few holes. At Jackson's elevation, that 41°F average low is a genuine factor even on clear mornings. Planning for a mid-morning start largely sidesteps the issue without sacrificing afternoon light.