The table shows the amount of rainfall, in inches, recorded each month for the first six months of a year.
| Month | Rainfall (inches) |
|---|---|
| January | 3.2 |
| February | 2.8 |
| March | 4.1 |
| April | 3.5 |
| May | 2.9 |
| June | 3.7 |
Based on the table, what was the mean monthly rainfall, in inches, for these six months, rounded to the nearest tenth of an inch?
3.2
3.3
3.4
3.5
