Click on a day for an hourly weather forecast
The temperatures in Trenton in May are comfortable with low of 12°C and and high up to 22°C.
You can expect about 3 to 8 days of rain in Trenton during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Trenton in May 2025.
If you’re planning to visit Trenton in the near future, we highly recommend that you review the 14 day weather forecast for Trenton before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 3° / -3° | 6 | 17 | 7 | 107 mm | Awful | Trenton in January |
| February | 5° / -2° | 6 | 15 | 7 | 139 mm | Awful | Trenton in February |
| March | 10° / 2° | 8 | 19 | 5 | 145 mm | Awful | Trenton in March |
| April | 16° / 7° | 7 | 23 | 0 | 124 mm | Ok | Trenton in April |
| May | 22° / 12° | 7 | 24 | 0 | 136 mm | Ok | Trenton in May |
| June | 26° / 17° | 7 | 23 | 0 | 142 mm | Good | Trenton in June |
| July | 30° / 20° | 9 | 22 | 0 | 177 mm | Ok | Trenton in July |
| August | 29° / 20° | 7 | 24 | 0 | 181 mm | Ok | Trenton in August |
| September | 25° / 17° | 5 | 25 | 0 | 117 mm | Perfect | Trenton in September |
| October | 19° / 11° | 6 | 24 | 0 | 150 mm | Good | Trenton in October |
| November | 12° / 5° | 5 | 24 | 1 | 109 mm | Ok | Trenton in November |
| December | 7° / 1° | 7 | 20 | 4 | 170 mm | Awful | Trenton in December |