Click on a day for an hourly weather forecast
The weather in Trenton in July is hot. The average temperatures are between 20°C and 30°C.
You can expect rain for roughly half of the month of July in Trenton. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Trenton in July 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 |