United States Natural Gas Fund (UNG) Seasonality
Recurring seasonal patterns for UNG — the calendar windows where United States Natural Gas Fund has historically tended to rise or fall, with the win rate (how often it repeated) and average return for each, based on the last 10 years of price history.
Data: 2016–2025 daily closes, split- and dividend-adjusted · updated Nov 4, 2026 · methodology
UNG seasonality chart
UNG seasonality at a glance
Over the last 10 years, UNG's strongest seasonal window has been Aug 2 – Sep 1: it ended higher in 9 of 10 years (90% win rate) with an average return of +8.91% across a 30-day hold. On the weak side, UNG has historically declined between Nov 26 – Dec 16, falling in 9 of 10 years (average -11.39%).
In total, our analysis finds 818 recurring seasonal windows for United States Natural Gas Fund — 406 bullish and 412 bearish. The next high-win-rate window, Nov 14 – Dec 14, opens in 10 days. These figures describe historical behaviour only — not a forecast.
UNG's upcoming & recent seasonal patterns
Holding period:10-day20-day30-dayOrdered by season — windows opening soon first, plus a couple of recently completed high-performers. Holding-period colors help you compare durations at a glance.
| Status | Seasonal window | Hold | Avg return | Win rate | This year |
|---|---|---|---|---|---|
| Completedended 6d ago | Oct 9 – Oct 29 | 20d | -5.02% | 80% | -16.62% |
| Completedended 7d ago | Oct 8 – Oct 28 | 20d | -4.94% | 80% | -12.12% |
| Upcomingin 10d | Nov 14 – Dec 14 | 30d | -9.93% | 80% | — |
| Upcomingin 13d | Nov 17 – Dec 17 | 30d | -9.38% | 80% | — |
| Upcomingin 14d | Nov 18 – Dec 18 | 30d | -9.18% | 80% | — |
| Upcomingin 15d | Nov 19 – Dec 9 | 20d | -6.94% | 90% | — |
| Upcomingin 15d | Nov 19 – Dec 19 | 30d | -10.07% | 80% | — |
Win rate = how often the pattern repeated in the same direction. Average return = the mean move across all analysed years. Past performance does not guarantee future results.
UNG monthly seasonality
Over the last 10 years, United States Natural Gas Fund's best calendar month has been August (average +6.46%, higher in 6 of 10 years) and its weakest December (average -10.44%, higher in 2 of 10 years). UNG has closed higher more often than not in 3 of the 12 months.
| Month | Avg return | Higher in | Best | Worst |
|---|---|---|---|---|
| January | -2.36% | 4 of 10 yrs | +36.19% | -33.90% |
| February | -5.30% | 2 of 10 yrs | +25.64% | -25.09% |
| March | -0.03% | 5 of 10 yrs | +27.56% | -23.90% |
| April | +2.01% | 6 of 10 yrs | +26.77% | -22.54% |
| May | -0.87% | 4 of 10 yrs | +21.83% | -15.59% |
| June | +1.62% | 3 of 10 yrs | +25.41% | -31.89% |
| July | +0.44% | 2 of 10 yrs | +50.55% | -22.32% |
| August | +6.46% | 6 of 10 yrs | +37.83% | -5.59% |
| September | +0.76% | 5 of 10 yrs | +31.59% | -26.13% |
| October | -2.10% | 5 of 10 yrs | +11.66% | -22.17% |
| NovemberNow | -0.17% | 6 of 10 yrs | +39.78% | -26.40% |
| December | -10.44% | 2 of 10 yrs | +16.50% | -33.79% |
Monthly return = close on the last day of the month vs. the last day of the month before, from split- and dividend-adjusted prices. Past performance does not guarantee future results.
Explore UNG seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
UNG seasonality FAQ
What is UNG's best month of the year?
Over the last 10 years, UNG's strongest calendar month has been August, with an average return of +6.46% and a gain in 6 of 10 years. Its weakest has been December, averaging -10.44%.
How does UNG usually perform in November?
UNG has closed November higher in 6 of the last 10 years, with an average return of -0.17%. Its best November returned +39.78% and its worst -26.40%.
What has historically been the best month to buy UNG stock?
Based on the last 10 years of price data, UNG's strongest seasonal window starts in August: Aug 2 to Sep 1, which ended higher in 9 of 10 years (90% win rate) with an average return of +8.91%. Past seasonal patterns do not guarantee future performance.
What is UNG's strongest seasonal pattern?
UNG's highest-win-rate pattern in our data is the Aug 2 – Sep 1 window (30-day hold): up in 9 of the last 10 years with an average move of +8.91%.
When has UNG historically performed worst?
UNG's weakest recurring window has been Nov 26 to Dec 16, declining in 9 of 10 years with an average return of -11.39%.
How reliable are UNG's seasonal patterns?
Each UNG pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. UNG currently shows 818 recurring windows (406 bullish, 412 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
New to seasonality? Read what stock seasonality is and how these numbers are calculated. Seasonality describes past behaviour, not a forecast.