Arnprior Weather in September
Arnprior in September
The short of it: Arnprior in September averages a high of 22 °C (71 °F) and a low of 10 °C (50 °F), with 75 mm (3.0 in) of rain and about 12 h 28 min of daylight. Rated 3 of 5 for a visit; the best months are June and September. Source: TerraClimate climate normals, 1991–2020.
Average high 22° · low 10° · rain 75 mm · daylight 12 h 28 min
✦✦✦ Fair for a visit · best months: June & September
September in Arnprior brings afternoons near 22° and nights around 10°, with about 75 mm of rain over the month. Highs fall 4° against August, to near 22°; nights run about 10°. Wet spells are common — about 75 mm, the 6th wettest month.
The sun is up for about 12 h 28 min in mid-September, 98 minutes less than a month before.
For the traveller: pack light clothes and a jacket for the evening, and an oilskin besides. The Almanac rates September 3 of 5 for a visit; the finest months here are June and September.
Against its neighbours, Arnprior runs warmer than most and drier than most in September. Shawville, 21 km to the NNW, sees much the same highs.
September in Arnprior, by the numbers
- Warmth rank
- 4th warmest of 12
- Rain rank
- 6th wettest of 12
- Versus August
- 4° colder, 6.0 mm less rain
- Versus October
- 8° warmer
- Day–night spread
- 12°
- Snow season
- Nov–Apr
- Daylight, mid-month
- 12 h 28 min
- Average wind
- 10 km/h
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| ShawvilleQuebec | 21 km NNW | 21° | 9° | 78 mm |
| Constance BayOntario | 22 km ENE | 21° | 10° | 84 mm |
| Mississippi MillsOntario | 25 km SSE | 21° | 10° | 79 mm |
| AlmonteOntario | 26 km SSE | 21° | 10° | 79 mm |
| RenfrewOntario | 26 km W | 22° | 9° | 71 mm |
| CarpOntario | 26 km ESE | 21° | 10° | 85 mm |
| Kanata-LakesOntario | 36 km ESE | 21° | 10° | 84 mm |
| BeaverbrookOntario | 36 km ESE | 22° | 10° | 84 mm |