Promontory Weather in September
Promontory in September
The short of it: Promontory in September averages a high of 21 °C (70 °F) and a low of 11 °C (51 °F), with 75 mm (3.0 in) of rain and about 12 h 31 min of daylight. Rated 3 of 5 for a visit; the best months are July and August. Source: TerraClimate climate normals, 1991–2020.
Average high 21° · low 11° · rain 75 mm · daylight 12 h 31 min
✦✦✦ Fair for a visit · best months: July & August
Thirty years of records give Promontory an average September high of 21°, a low of 11° and some 75 mm of rain. Much like August: highs about 21°, nights near 11°. Easy travelling weather. Wet spells are common — about 75 mm, the 10th wettest month.
The sun is up for about 12 h 31 min in mid-September, 112 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 July and August.
Against its neighbours, Promontory runs cooler than most and drier than most in September. Vedder Crossing, 2 km to the W, sees much the same highs.
September in Promontory, by the numbers
- Warmth rank
- 3rd warmest of 12
- Rain rank
- 10th wettest of 12
- Versus August
- 4° colder, 23 mm more rain
- Versus October
- 7° warmer
- Day–night spread
- 11°
- Snow season
- Dec–Jan
- Daylight, mid-month
- 12 h 31 min
- Average wind
- 8 km/h
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| Vedder CrossingBritish Columbia | 2 km W | 21° | 11° | 77 mm |
| Chilliwack-DowntownBritish Columbia | 7 km NNW | 22° | 11° | 74 mm |
| ChilliwackBritish Columbia | 7 km N | 22° | 11° | 74 mm |
| AbbotsfordBritish Columbia | 24 km WSW | 22° | 10° | 81 mm |
| ClayburnBritish Columbia | 24 km W | 22° | 10° | 81 mm |
| MissionBritish Columbia | 27 km W | 21° | 10° | 94 mm |
| FairfieldBritish Columbia | 28 km W | 22° | 10° | 81 mm |
| TownlineBritish Columbia | 31 km W | 21° | 10° | 83 mm |