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The temperatures in Dillon in September are quite cold with temperatures between 7°C and 20°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Dillon during the month of September. 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 Dillon in September 2025.
If you’re planning to visit Dillon in the near future, we highly recommend that you review the 14 day weather forecast for Dillon before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -4° / -13° | 7 | 22 | 2 | 13 mm | Awful | Dillon in January |
| February | -3° / -12° | 8 | 18 | 2 | 15 mm | Awful | Dillon in February |
| March | 2° / -7° | 6 | 21 | 3 | 21 mm | Awful | Dillon in March |
| April | 8° / -2° | 9 | 18 | 3 | 43 mm | Bad | Dillon in April |
| May | 14° / 3° | 9 | 21 | 1 | 64 mm | Ok | Dillon in May |
| June | 20° / 8° | 8 | 22 | 0 | 57 mm | Ok | Dillon in June |
| July | 26° / 12° | 6 | 26 | 0 | 17 mm | Perfect | Dillon in July |
| August | 25° / 12° | 4 | 27 | 0 | 19 mm | Perfect | Dillon in August |
| September | 20° / 7° | 4 | 25 | 0 | 30 mm | Good | Dillon in September |
| October | 10° / 0° | 5 | 25 | 1 | 28 mm | Ok | Dillon in October |
| November | 2° / -8° | 6 | 21 | 3 | 20 mm | Awful | Dillon in November |
| December | -5° / -14° | 9 | 19 | 4 | 20 mm | Awful | Dillon in December |