Is Dillon hot in September?
Days are typically mild at 19°C, while nights average -0.8°C.
United States · 1991–2020 normal
Dillon in
September.
Typical September weather in Dillon: 19°C by day, -0.8°C at night, 36 mm of rain over 7.4 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high19°C
Typical low-0.8°C
Rain36 mm
Wet days7.4
In the year-round weather comparison, September scores 51 out of 100 (July leads the year at 72). Daylight is calculated as 12 h 24 from latitude 39.63°.
September at a glance
What is Dillon like in September?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 36 mm across about 7 wet days.
How much daylight is there?
There are about 12 h 24 between sunrise and sunset at mid-month, calculated from the place latitude.
Is September a good time to visit?
September ranks 4 of 12 in our weather comparison; July ranks first.
Event window
Frost-level nights in September
The measured night-time normal is -0.8°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5419606
- NOAA station
- USC00052281 · DILLON 1 E
- Station distance
- 1.1 km from the place centre
- Coverage
- Strong coverage · 30 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Dillon is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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