Seasonality
LII seasonality — Lennox International
Over the last 11 years, LII's strongest month on average has been November (+6.7%) and its weakest September (-3.1%).
Average return by month
Month-by-month statistics
| Month | Avg | Median | Up % | Best | Worst | Yrs |
|---|---|---|---|---|---|---|
| Jan | -0.09% | +1.26% | 60% | +8.9% | -12.6% | 10 |
| Feb | +2.38% | +1.51% | 60% | +15.1% | -6.1% | 10 |
| Mar | -2.60% | -0.76% | 40% | +11.4% | -20.3% | 10 |
| Apr | +0.89% | +0.76% | 50% | +15.2% | -17.3% | 10 |
| May | +2.97% | +3.79% | 60% | +14.6% | -6.1% | 10 |
| Jun | +5.48% | +3.91% | 80% | +18.4% | -1.6% | 10 |
| Jul | +2.04% | +7.35% | 60% | +15.9% | -27.4% | 10 |
| Aug | -0.77% | +0.70% | 60% | +4.5% | -8.4% | 10 |
| Sep | -3.11% | -3.51% | 20% | +8.0% | -12.2% | 10 |
| Oct | +0.24% | -0.32% | 40% | +6.8% | -4.6% | 10 |
| Nov | +6.69% | +7.12% | 89% | +11.5% | -1.2% | 9 |
| Dec | -1.47% | -2.89% | 30% | +10.1% | -8.7% | 10 |
Monthly returns heat map — LII
price return, %| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2.0 | 15.1 | -18.6 | 15.2 | -6.1 | 14.1 | -27.4 | -8.0 | -7.2 | -3.1 | -0.6 | -29.6% | |
| 2025 | -2.8 | 1.5 | -6.7 | -2.5 | 3.2 | 1.6 | 6.2 | -8.4 | -5.1 | -4.6 | -1.2 | -2.7 | -20.3% |
| 2024 | -4.3 | 10.1 | 3.7 | -5.2 | 8.4 | 6.4 | 9.1 | 1.1 | 2.4 | -0.3 | 10.7 | -8.7 | +36.1% |
| 2023 | 8.9 | -2.2 | -1.4 | 12.2 | -2.3 | 18.4 | 12.7 | 2.5 | -0.6 | -1.0 | 9.8 | 10.1 | +87.1% |
| 2022 | -12.6 | -5.9 | -3.4 | -17.3 | -2.0 | -1.1 | 15.9 | 0.2 | -7.3 | 4.9 | 11.5 | -8.1 | -26.2% |
| 2021 | 0.6 | 1.6 | 11.4 | 7.6 | 4.3 | 0.2 | -6.1 | 1.8 | -12.2 | 1.7 | 3.2 | 5.0 | +18.4% |
| 2020 | -4.5 | -2.1 | -20.3 | 2.7 | 14.6 | 9.0 | 15.1 | 4.5 | -2.8 | -0.3 | 6.0 | -4.8 | +12.3% |
| 2019 | 4.8 | 7.0 | 7.8 | 2.7 | -2.7 | 4.1 | -6.7 | -1.1 | -4.3 | 1.8 | 3.4 | -4.6 | +11.5% |
| 2018 | 4.6 | -6.1 | -0.1 | -5.4 | 5.1 | -1.6 | 8.5 | 2.6 | -2.0 | -3.4 | 7.1 | -3.1 | +5.1% |
| 2017 | 2.4 | 5.0 | 1.6 | -1.1 | 7.1 | 3.7 | -6.9 | -3.1 | 8.0 | 6.8 | 9.7 | -0.7 | +36.0% |
| 2016 | 3.0 |